| Entries |
| Document | Title | Date |
|---|
| 20080204892 | Zoom lens system and electronic image pickup apparatus using the same - In a zoom lens system, at a time of zooming from a wide angle end to a telephoto end, when focused on an object at a longest distance, at the telephoto end, a first lens unit moves to be positioned more toward an object side, than at a wide angle end, at the telephoto end, a second lens unit moves to be positioned more toward an image side, than at the wide angle end, at the telephoto end, an aperture stop and a third lens unit moves to be positioned more toward the object side, than at the wide angle end, and a combined system of the first lens unit and the second lens unit at the wide angle end has a negative refracting power, and at the time of zooming from the wide angle end to the telephoto end, the second lens unit is positioned more toward the object side than a position of the second lens unit at the wide angle end, and the first lens unit moves to be positioned more toward the object side, than at the wide angle end, at the intermediate zoom state, and in the intermediate zoom state, the aperture stop, the third lens unit, and an object point of the third lens unit move to be positioned more toward the object side, than at the wide angle end, and the zoom lens system satisfies predetermined conditional expressions. | 08-28-2008 |
| 20080212200 | Telephoto zoom lens - The present invention is directed to a compact large-aperture-ratio inner-focusing telephoto zoom lens of the reduced total lens extension where minimizing a photo-shooting distance down to as short as 1 meter does not cause the lens optics to displace accordingly greater during the focusing. The large-aperture-ratio inner-focusing telephoto zoom lens has four groups of lens pieces, namely, the 1st lens group of positive refractive power, the 2nd lens group of negative refractive power, the 3rd lens group of positive refractive power, and, the 4th lens group of positive refractive power arranged in series on the basis of “closer to a subject first,” and that has the 2nd and 3rd lens groups moved along the optical axis to vary a magnification power. In such a telephoto zoom lens, the 1st lens group includes the leading subgroup of lens pieces or foremost lens subgroup G1F and the trailing subgroup of lens pieces or rear lens subgroup G1R where the G1F has two of a concave lens piece and a convex lens piece cemented into a single piece of composite lens while the G1R has a composite lens of one concave lens piece and two convex lens pieces in series. The rear lens subgroup G1R in the 1st lens group is moved along the optical axis for the focusing, and the telephoto zoom lens has an optical property that satisfies requirements as follows: | 09-04-2008 |
| 20080218874 | ZOOM LENS, OPTICAL APPARATUS, AND METHOD FOR FORMING AN IMAGE OF AN OBJECT - In a zoom lens having a plurality of lens groups which are disposed in that order from an object, a first lens group that is disposed to closest to the object among the plurality of lens groups has positive refractive power and comprises a light path bending element which bends the path of light and a plurality of lens components which are disposed closer to the object than the light path bending element; and, where the distance on the optical axis from the surface closest to the object in the first lens group to the surface closest to the object in the light path bending element is L | 09-11-2008 |
| 20080231967 | ZOOM LENS AND IMAGE PROJECTION APPARATUS HAVING THE SAME - A zoom lens comprises a plurality of lens units including a first lens unit disposed most adjacent to an enlargement side and having negative refractive power, wherein one or more lens units of the plurality of lens units are moved in the direction of the optical axis thereof during magnification change, and wherein the first lens unit includes a 1-1st lens unit comprising at least one lens of negative refractive power and moved during focusing and a 1-2nd lens unit having positive refractive power, and fixed during focusing. | 09-25-2008 |
| 20080239504 | ZOOM LENS AND IMAGING DEVICE - A zoom lens comprises: a stationary group that is stationary at the time of variable power; and a variable power group, disposed on an image side of the stationary group, that makes a variable power operation by moving in an optical axis direction at the time of variable power, wherein the stationary group comprises: a first lens group including a negative meniscus lens and a positive lens and having a positive refractive power as a whole; and a second lens group, disposed on the image side of the first lens group, including: a negative lens group including a negative meniscus lens and a positive lens; and a positive lens group including at least one positive lens, in order from an object side, the second lens group having a positive refractive power as a whole. | 10-02-2008 |
| 20080239505 | ZOOM LENS AND IMAGER APPARATUS - A zoom lens comprises first, second, third and fourth lens groups in order from an object side, so as to change magnification by changing a spacing between the lens groups. The first lens group has a positive refractive power as a whole and comprises, in order from the object side, a negative meniscus lens, a reflecting member that bends an optical path nearly 90 degrees and a positive lens of a resin material having at least one aspheric surface. The second lens group has a negative refractive power as a whole and comprises a negative lens of a resin material on an most object side of the second lens group. A conditional expression given below is satisfied provided that P | 10-02-2008 |
| 20080239506 | VARIABLE-POWER OPTICAL SYSTEM AND IMAGING DEVICE - A variable-power optical system includes, in order from an object side, first to fifth lens groups. The first and third lens groups are fixed at a time of varying magnification and at a time of focusing. The second, fourth and fifth lens groups are movable at the time of varying magnification. The first, third and fourth lens groups have positive refractive powers. The second and fifth lens groups have negative refractive powers. The fourth lens group has a focusing function. The following conditional expressions are satisfied. | 10-02-2008 |
| 20080247053 | Zoom Lens and Image Pick-Up Apparatus Using Zoom Lens - A zoom lens composed of plural groups and adapted for changing group spacing or spacings, and includes, in a first group GR | 10-09-2008 |
| 20080252991 | ZOOM LENS - A zoom lens including a first lens group with a negative refractive power and a second lens group with a positive refractive power is provided. The first lens group is composed of a first lens, a second lens, and a third lens. Refractive powers of the first lens, the second lens, and the third lens are respectively negative, negative, and positive. Moreover, the second lens group is disposed between the first lens group and an image side. The second lens group is composed of a fourth lens, a fifth lens, and a sixth lens. Refractive powers of the fourth lens, the fifth lens, and the sixth lens are respectively positive, negative, and positive. The first lens group and the second lens group are capable of moving between an object side and the image side. The zoom lens has advantages of wide angle and small volume. | 10-16-2008 |
| 20080266672 | Zoom lens, and electronics imaging system using the same - A zoom lens with an easily bendable optical path has high optical specification performance such as a high zoom ratio, a wide-angle arrangement, a small F-number and reduced aberrations. It includes a first lens group G | 10-30-2008 |
| 20080291543 | IMAGING UNIT AND MOBILE ELECTRONIC DEVICE - An imaging unit including an image sensor, an incident-side prism, an exit-side prism, and an intermediate optical system positioned therebetween, wherein light incident on the incident-side prism passes through the incident-side prism, the intermediate optical system and the exit-side prism to be incident on the image sensor, the imaging unit includes a housing supporting the incident-side prism, the exit-side prism and the intermediate optical system such that incident and exit optical axes of the incident-side prism, an optical axis of the intermediate optical system, and incident and exit optical axes of the exit-side prism all lie on a common plane; and a cover board, on which the image sensor is mounted, fixed to the housing so that the image sensor faces an exit surface of the exit-side prism, the cover board closing an opening of the housing. | 11-27-2008 |
| 20080316614 | ZOOM LENS SYSTEM AND IMAGE PICKUP DEVICE - A zoom lens system includes, in order from an object side: a first lens group having negative power, a second lens group having negative power, a third lens group having positive power, and, a fourth lens group having positive power. The position of the first lens group is fixed during zooming, and the third lens group includes three single lenses including, in order from the object side, a third-first single lens having positive power, a third-second single lens having negative power and a third-third single lens having negative power. The zoom lens system satisfies the following conditional expression: | 12-25-2008 |
| 20090015936 | ZOOM LENS - A zoom lens including a first lens group with a negative refractive power and a second lens group with a positive refractive power is provided. The first lens group includes a first lens, a second lens, and a third lens arranged from an object side to an image side in sequence. The refractive powers of the first, second, and third lenses are negative, negative, and positive sequentially. The second lens group includes a fourth lens, a fifth lens, a sixth lens, and a seventh lens arranged from the object side to the image side in sequence. The refractive powers of the fourth, fifth, sixth, and seventh lenses are positive, positive, negative, and positive sequentially. The first lens group and the second lens group are capable of moving between the object side and the image side. | 01-15-2009 |
| 20090015937 | Digital image pointing and digital zoom optical system - An optical system for the production of images, comprising an all optical system is disclosed. Said all optical system manipulates images directly by digital electronics without loss in the number of resolvable spots at higher magnifications. | 01-15-2009 |
| 20090015938 | WIDE-ANGLE LENS, OPTICAL APPARATUS AND METHOD FOR FOCUSING - Providing a wide-angle lens having high optical performance, an optical apparatus using the same, and a method for focusing the wide-angle lens. The lens comprising, in order from an object, a first lens group G | 01-15-2009 |
| 20090027778 | Deformable optical element, methods of making and uses thereof - A deformable optical element includes an elastically deformable lens. Electrical contacts are directly attached to the elastically deformable lens and configured to receive an applied voltage. The electrical contacts have opposing surfaces configured to develop electrostatic forces in response to the applied voltage. The electrostatic forces deform the elastically deformable lens to create a predetermined optical effect. | 01-29-2009 |
| 20090086332 | Wide-angle zoom optic system - A wide-angle zoom optic system includes: in an order from an object, a first lens group having a negative refractive power; a second lens group having a positive refractive power; and a third lens group having a positive refractive power, wherein the first lens group includes two lens elements. In the zoom optic system, the ratio of the distance between the last lens element with respect to the object and an image field at a wide-angle position to a focal length at the wide-angle position is adjusted, so that a compact zoom optic system having a high magnification and a wide viewing angle can be implemented. | 04-02-2009 |
| 20090086333 | ZOOM LENS, OPTICAL APPARATUS EQUIPPED WITH THE ZOOM LENS AND METHOD FOR FORMING AN IMAGE OF AN OBJECT AND VARYING A FOCAL LENGTH - A zoom lens comprises a plurality of lens groups arranged along an optical axis in order from an object side, wherein a lens group closest to an image among the plurality of lens groups has a front lens group, and a rear lens group arranged with an air space on an image side of the front lens group, and wherein the lens group closest to the image is stationary with respect to an image plane, upon zooming from a wide-angle end state to a telephoto end state. | 04-02-2009 |
| 20090135494 | DUAL FOCAL LENGTH LENS SYSTEM - A dual focal length optical system includes a first optical system and a second optical system. The first optical system is positioned along an optical path and includes an optical structure having an object side surface and an image side surface. The first optical system also includes a first surface of an intermediate reflective element located between the object side surface and the image side surface of the optical structure as viewed along the optical path. The first optical system has a first focal length. The second optical system shares a portion of the same optical path and includes a second surface of the same intermediate reflective element as that of the first optical system. The second optical system has a second focal length. The first focal length of the first optical system is longer than the second focal length of the second optical system. | 05-28-2009 |
| 20090135495 | CAMERA, HANDLENS, AND MICROSCOPE OPTICAL SYSTEM FOR IMAGING AND COUPLED OPTICAL SPECTROSCOPY - An optical system comprising two lens cells, each lens cell comprising multiple lens elements, to provide imaging over a very wide image distance and within a wide range of magnification by changing the distance between the two lens cells. An embodiment also provides scannable laser spectroscopic measurements within the field-of-view of the instrument. | 05-28-2009 |
| 20090141367 | ZOOMING SYSTEM AND METHOD - A zooming system includes a selecting unit, a detection unit, a calculating unit, a controlling unit, and a zooming unit. The selecting unit is configured for selecting a zoom mode based on the presence of faces in a pre-image. The detection unit is configured for detecting facial areas in the pre-image. The calculating unit is configured for calculating a zoom ratio on the basis of a dimensional ratio of the detected facial areas to the pre-image. The zooming unit is controlled by the controlling unit to zoom the imaging device according to the zoom ratio. | 06-04-2009 |
| 20090268306 | ZOOM LENS - A zoom lens includes a first lens group including at least one positive lens and having a positive refractive power as a whole, a second lens group having a negative refractive power, a third lens group having a positive refractive power, and a fourth lens group having a positive refractive power wherein the first to the fourth lens groups are arranged sequentially from a subject. When magnification is varied from a wide angle end to a telephoto end, the second lens group is moved along an optical axis from the subject-side to an image plane. When given conditions are fulfilled, a small zoom lens with less manufacturing costs, high optical performance, and high magnification is realized. | 10-29-2009 |
| 20090273845 | OPTICAL SYSTEM AND OPTICAL APPARATUS INCLUDING OPTICAL SYSTEM - Provided is an optical system in which chromatic aberrations can be excellently corrected in spite of environmental changes, to thereby maintain high optical performance. The optical system includes: a plurality of optical elements each having refractive surfaces located in a light incident side and a light exit side; and an aperture stop. A focal length, an Abbe number of a material, and an extraordinary partial dispersion ratio of each of an l-th optical element and an r-th optical element which satisfy a condition related to the extraordinary partial dispersion ratio are suitably set. | 11-05-2009 |
| 20090310225 | Variable power optical system, imaging lens system and digital apparatus - Provided is a microminiaturized zoom optical system capable of sufficiently correcting aberration. The zoom optical system ( | 12-17-2009 |
| 20090310226 | ZOOM LENS AND OPTICAL APPARATUS EQUIPPED THEREWITH - A zoom lens is provided with comprising a plurality of lens groups including, in order from an object side, a first lens group G | 12-17-2009 |
| 20100020408 | ENDOSCOPE OBJECTIVE OPTICAL SYSTEM - An endoscope objective optical system used in an endoscope has an objective optical system including a first lens group having a positive refractive power, an aperture stop, a second lens group having a negative refractive power and a third lens group having a positive refractive power, the first lens group, the aperture stop and the second and third lens group being successively disposed from the object side. The second lens group is made movable along an optical axis to change the focal length of the objective optical system. The lens surface at the object-side outermost position in the first lens group is formed so as to be convex on the object side. | 01-28-2010 |
| 20100027133 | LENS UNIT AND IMAGE PICKUP APPARATUS - A simply structured zooming movement mechanism for moving a first lens group located in the object side from a bending member. Also provided are a small-sized lens unit by making it collapsible and an image pickup apparatus. The lens unit has: the bending member for bending the light entering from an object along a first optical axis, to the direction of a second optical axis substantially perpendicular to the first optical axis; and a first moving member for moving a first support member, which supports the first lens group, in the direction of the first optical axis to a storage position; a bending member moving member for moving the bending member to an evacuation position in order to create a space for storing the first supporting member; and a first zooming movement member for moving the first supporting member in the direction of the first optical axis in a variable magnification manner. The first zooming movement member, the bending member moving member and the first moving member are driven in this order. | 02-04-2010 |
| 20100073774 | MAGNIFICATION-VARYING OPTICAL DEVICE - The invention relates to improving optical properties of optical instruments with variable magnification, such as zoom binoculars, reducing the weight thereof, and enabling the user to change magnifications quickly. The invention provides an optical instrument with a focal length-varying lens | 03-25-2010 |
| 20100073775 | ZOOM LENS AND IMAGE PROJECTION APPARATUS - A zoom lens includes a negative lens unit having a negative refractive power, at least one positive lens unit having a positive refractive power, an intermediate lens unit including a stop, and at least one reduction side lens unit, in order from a magnification conjugate side to a reduction conjugate side, at least two magnification side movable lens units in the negative lens unit and the at least one positive lens unit, and at least one reduction side movable lens unit in the at least one reduction side lens unit are moved during zooming, and conditions of 0.9<(X | 03-25-2010 |
| 20100091381 | Zoom lens and image pickup apparatus equipped with same - A zoom lens has a plurality of lens units including, in order from its object side to image side, a first lens unit having a negative refracting power composed of two lens elements including a biconcave negative lens and a positive lens, and a second lens unit having a positive refracting power composed of four lens elements including a positive lens and a negative lens. During zooming from the wide angle end to the telephoto end, a distance between the lens units changes, and the second lens unit moves toward the object side. The zoom lens has an aperture stop that moves integrally with the second lens during the zooming and satisfies a specific condition. | 04-15-2010 |
| 20100103531 | ZOOM LENS AND IMAGE PICKUP APPARATUS USING THE SAME - A zoom lens includes a first lens unit with a negative refractive power, a second lens unit with a positive refractive power, and a third lens unit with a positive refractive power in order from the object side to the image side. The first lens unit includes a negative lens and a positive lens. When the curvature radius of the object side surface and that of the image side surface of the negative lens are respectively defined as R | 04-29-2010 |
| 20100128360 | ZOOM LENS AND IMAGE PICKUP APPARATUS HAVING THE SAME - A zoom lens includes, in order from an object side to an image side, a first lens unit having a negative refractive power and a second lens unit having a positive refractive power. In the zoom lens, an interval between the first and second lens units becomes smaller at a telephoto end than at a wide-angle end during zooming. The first lens unit includes, in order from the object side to the image side, a first lens having a negative refractive power, a second lens having a negative refractive power, which is made of a plastic and has an aspheric lens surface, and a third lens unit having a positive refractive power. In the zoom lens, a refractive index and an Abbe number of the plastic (Nd, νd), a focal length of the second lens (fn), and a focal length of the first lens unit (f | 05-27-2010 |
| 20100149652 | Zoom lens having diffraction-type optical element and image pickup apparatus using the same - A zoom lens is provided with, in order from the object side, at least, a positive first group with a diffraction-type optical element, a positive second group, and a negative third group. A space between the first and second groups and a space between the second and third groups are increased in changing a magnification from the wide-angle end position to the telephoto end position, and the third group is fixed. | 06-17-2010 |
| 20100220397 | INTERNALLY FOCUSING LENS SYSTEM - An exemplary internally focusing lens system includes, in order from the object side to the image side, a first lens group with positive refractive power, a second lens group with negative refractive power, and a third lens group with positive refractive power. The third lens group includes one lens element. The second lens group is movable toward the image side and the first and third lens groups remain stationary during focusing of the lens system from an infinitely distant object to a nearby object. | 09-02-2010 |
| 20100246025 | ZOOM LENS SYSTEM AND IMAGE PICKUP APPARATUS INCLUDING THE ZOOM LENS SYSTEM - A zoom lens system, in which chromatic aberration, spherical aberration, and coma may be excellently corrected in a balanced manner so as to obtain excellent optical performance over an entire zoom range, includes, in order from an object side to an image side: a first lens unit having a positive refractive power; a second lens unit having a negative refractive power; and a rear lens group including a lens unit having a positive refractive power, in which: at least one of the first lens unit and the second lens unit is moved for zooming so that an interval therebetween at a telephoto end is larger than an interval at a wide angle end; the first lens unit includes at least one negative lens; and an Abbe number (νd | 09-30-2010 |
| 20110058259 | Scanner Lens - A scanner lens includes a first lens, a second lens, and a third lens. The first lens is provided with a first focal length. The first, second, and third lenses are sequentially arranged from an object end to an imaging end and are respectively provided with a plus diopter, a minus diopter, and a plus diopter. At least one of the first, second, and third lenses comprises an aspheric lens. The ratio of the first focal length to a system focal length of the scanner lens ranges between 1 and 2. | 03-10-2011 |
| 20110063736 | IMAGING OPTICS WITH ADJUSTABLE OPTICAL POWER AND METHOD OF ADJUSTING AN OPTICAL POWER OF AN OPTICS - The invention relates to optics comprising adjustable optical elements and, if desired, lenses of fixed focal lens. By use of an appropriate controller for the adjustable optical elements, characteristics of the optics can be advantageously varied. For this purpose, systems are provided which are suitable for use as surgical stereo-microscope, objective, ocular or zoom. A zoomable imaging optics comprises lenses and of variable optical power, which are oppositely controlled by means of a controller to change an imaging ratio, so that the optical power of the one lens is increased and the optical power of the other lens is decreased. Moreover, the imaging optics may comprise still further assemblies of fixed optical power. | 03-17-2011 |
| 20110075269 | PROJECTION DISPLAY DEVICE FOR MULTIMEDIA AND WALL DISPLAY SYSTEMS - A front projection display device includes an optical engine including an illumination system, an imaging system, and projection optics. The projection optics include a first lens group of negative refractive power that has at least one aspheric surface. The projection optics output an image at a half field angle of at least 45°, where the image has substantially no distortion. For example, when the first lens group is placed at a distance of less than 1 meter from a viewing screen, the output image has a size of about 40 inches diagonal or greater, and requires substantially no keystone correction. In other aspects, the optical engine can be implemented in a wall-mounted projection system, a multimedia system, a compact integrated monitor system, and a portable projection unit. | 03-31-2011 |
| 20110080648 | IMAGING APPARATUS - An imaging apparatus includes an imaging system, a dome cover that houses the imaging system, and a correction lens between the imaging system and the dome cover. The focal length of the dome cover and the focal length of the correction lens are appropriately set based on predetermined conditions. | 04-07-2011 |
| 20110157714 | IMAGING APPARATUS - An imaging apparatus includes a first lens has a positive refractive power, a second lens has a positive refractive power, a third lens has a negative refractive power, a fourth lens has a negative refractive power, an image sensor and a driving device. The first lens, the second lens, the third lens, the fourth lens and the image sensor are arranged in the order written along an optical axis of the imaging apparatus from the object side to the image side thereof. The driving device is connected to the second lens and configured for driving the second lens to move toward the object side to perform a zoom-in function of the imaging apparatus. | 06-30-2011 |
| 20110242675 | ZOOM LENS AND OPTICAL APPARATUS - The zoom lens includes a first lens unit being disposed closest to an object and having a positive optical power, and at least one subsequent lens unit being disposed closer to an image than the first lens unit. The first lens unit is moved toward the object during variation of magnification from a wide-angle end to a telephoto end. The first lens unit is constituted by at least three lenses including a positive meniscus lens being disposed closest to the image among the at least three lenses and having an image side concave surface, and a negative lens being disposed on an object side next to the positive meniscus lens. A condition of 1.55| 10-06-2011 | |
| 20120013991 | ZOOM LENS SYSTEM, INTERCHANGEABLE LENS APPARATUS AND CAMERA SYSTEM - A zoom lens system, in order from an object side to an image side, comprising a first lens unit having positive optical power, a second lens unit having positive optical power, a third lens unit having positive optical power, a fourth lens unit having negative optical power, and at least one subsequent lens unit; an interchangeable lens apparatus; and a camera system are provided. | 01-19-2012 |
| 20120019925 | ZOOM LENS SYSTEM, IMAGING DEVICE AND CAMERA - A zoom lens system comprising: a front unit having negative optical power as a whole and including a first lens unit located closest to the object side; and a rear unit having positive optical power as a whole, wherein at least the front unit moves along an optical axis in zooming, the first lens unit is composed of at most three lens elements, the rear unit includes a lens unit having an aperture diaphragm between lens elements, an air space between which is not varied in zooming, a sub lens unit comprising a part of a lens unit constituting the rear unit moves in a direction perpendicular to the optical axis, and the condition: 0.1| 01-26-2012 | |
| 20120026600 | ZOOM LENS SYSTEM, IMAGING DEVICE AND CAMERA - A zoom lens system, in order from an object side to an image side, comprising a first lens unit having positive optical power and at least one subsequent lens unit, wherein an interval between the first lens unit and a lens unit which is one of the at least one subsequent lens unit varies in zooming, and at least one lens element among all the lens elements constituting the lens system satisfies the condition: 0.0002399×vd | 02-02-2012 |
| 20120127582 | OPTICAL SYSTEM - The optical system of the present invention includes a plurality of lens groups and a variable focus lens. Here, the variable focus lens satisfies the following condition: | 05-24-2012 |
| 20120194917 | MINIATURE IMAGE PICKUP LENS - A miniature image pickup lens includes a first lens, a second lens, a third lens, an aperture, a fourth lens, and a fifth lens in sequence along an optical axis from an object side to an image side. The first lens is a meniscus lens with negative refractive power and has a convex side facing the object side. The first lens has at least an aspheric side. The second lens is a biconvex lens with positive refractive power. The third lens is a biconcave lens with negative refractive power. The fourth lens is a biconvex lens with positive refractive power and has at least an aspheric side. The fifth lens has a negative refractive power. | 08-02-2012 |
| 20120218644 | Photographic and Projection Module and Electronic System Having the Same - This invention provides compact photographic and projection modules and electronic systems having the photographic and projection modules, which not only can project image data but also can capture image with good image quality high zoom ratio. Additionally, the photographic and projection modules are reliable and able to be made with low cost. | 08-30-2012 |
| 20130016433 | Zoom Lens and Imaging DeviceAANM Ozaki; YuichiAACI Hachioji-shiAACO JPAAGP Ozaki; Yuichi Hachioji-shi JPAANM Yamashita; AtsushiAACI Sagamihara-shiAACO JPAAGP Yamashita; Atsushi Sagamihara-shi JP - Provided is a zoom lens including a first lens group having negative refractive power, a second lens group having positive refractive power, a third lens group having negative refractive power, and a fourth lens group having positive refractive power. The first lens group contains a reflective optical element that bends the light path. In order from the object side, the second lens group comprises a positive 2p1 lens, a negative 2n lens, and a positive 2p2 lens. The third lens group comprises a single negative lens. Letting n2n be the index of refraction of the 2n lens, n2p2 be the index of refraction of the 2p2 lens, ν2p2 be the Abbe number of the 2p2 lens, and ν2n be the Abbe number of the 2n lens, 0.30| 01-17-2013 | |
| 20130148209 | LENS STRUCTURE - A lens structure is provided. The lens structure comprises a first barrel and a second barrel. The first barrel comprises a first pin and a second pin. The second barrel comprises a continuous groove. Wherein in a wide-angle end, the first pin is located in the continuous groove and the second pin is located outside of the second barrel. Wherein in a telephoto end, the first pin is located outside of the second barrel and the second pin is located in the continuous groove. | 06-13-2013 |
| 20130258493 | THIN LENS MODULE - A thin lens module has a case, in which an optical lens set, an image sensor, a focusing driving device, two position indicators, a zooming driving device, a shutter, and a shutter driving device are provided. An optical axis of the optical lens set has a first optical axis section and a second optical axis section, and the first optical axis section is perpendicular to an object side. The focusing driving device, the position indicators, and the shutter driving device respectively connects to joints for signal transmission, and these joints are provided on a side of the case parallel to the first optical axis section to achieve the thinning purpose. | 10-03-2013 |
| 20140049834 | CAMERA LENS MODULE - A camera lens module in which an optical system is configured to include five sheets of lenses is provided. In the camera lens module, first, second, third, fourth and fifth lenses are sequentially arranged from an object side, and the first lens performs a zooming operation while moving along an optical axis. Accordingly, the optical system is configured to include five sheets of lenses for performance of a zooming operation and to allow only the first lens to perform the zooming operation, so that it is possible to manufacture a high-resolution optical system in a compact size and to perform the zooming operation at a high speed. | 02-20-2014 |
| 20140254026 | ADJUSTABLE LENS ARRAY WITH VARIABLE OPTICAL POWER - An adjustable lens includes a first lens member having a first corrugated surface, a second lens member having a second corrugated surface, and blackout regions disposed between the first and second corrugated surfaces. The first corrugated surface includes a periodic structure of alternating ridge and groove sections. The second corrugated surface includes a periodic structure of alternating ridge and groove sections. The blackout regions are positioned to block image light passing through either the ridge sections of the first lens member, or alternatively, the groove sections of the first lens member. | 09-11-2014 |
| 20140268362 | IMAGING LENS - The present invention relates to an imaging lens, the imaging lens including, in an ordered way from an object side, a first movable lens having a positive (+) refractive power, a second lens having a negative (−) refractive power, a third lens having a positive (+) refractive power, a fourth lens having a positive (+) refractive power, and a fifth lens having a negative (−) refractive power. | 09-18-2014 |
| 20150036224 | ADAPTIVE OPTICAL ZOOM SYSTEMS AND METHODS - Adaptive optical zoom systems and methods are described herein. One example of a method for adaptive optical zoom includes receiving an image at a focal plane array through a number of variable focal length elements, determining a quality of the image, and altering an amperage of the number of variable focal length elements to increase the quality of the image. | 02-05-2015 |
| 20150062717 | IMAGING DEVICE, CAMERA SYSTEM, AND CONTROL METHOD FOR IMAGING DEVICE - An imaging device, comprising an interchangeable lens having a photographing optical system whose focal length can be varied, comprises a zoom position detection section for detecting a zoom position in accordance with focal length of the imaging optical system, and a lens control section for controlling movement of a focus lens contained in the imaging optical system, wherein the lens control section corrects position that the focus lens is moved to in accordance with the zoom position before movement of the focus lens and zoom position during movement of the focus lens. | 03-05-2015 |
| 20150085373 | ZOOM LENS - A zoom lens includes a first lens unit including one of an SLM or a VFL, a second lens unit being optically coupled between the first lens unit and a focal plane and including one of an SLM or a VFL, and a control unit controlling focal lengths of the first and second lens units. A distance between the first lens unit and the second lens unit and a distance between the second lens unit and the focal plane are invariable. The control unit changes a magnification ratio of the zoom lens by changing the focal lengths of the first and second lens units. | 03-26-2015 |
| 20150378130 | Camera Lens Module - A camera lens module in which an optical system is configured to include five sheets of lenses is provided. In the camera lens module, first, second, third, fourth and fifth lenses are sequentially arranged from an object side, and the first lens performs a zooming operation while moving along an optical axis. Accordingly, the optical system is configured to include five sheets of lenses for performance of a zooming operation and to allow only the first lens to perform the zooming operation, so that it is possible to manufacture a high-resolution optical system in a compact size and to perform the zooming operation at a high speed. | 12-31-2015 |
| 20160124220 | Lens System and Method - An optical system includes a first deformable lens having a membrane with a deformable portion and having a filler material. The optical system also includes a corrective fixed lens. A sensor is configured to receive the light focused by the first deformable lens. An optical path extends through the first deformable lens and to the sensor. The first deformable lens is tuned according to an applied electrical signal in order to directly focus light traversing the optical path onto the sensor. The corrective fixed lens is integral with the first deformable lens and the corrective fixed lens is in direct contact with the filler material of the deformable lens where the light passes through, and is configured to correct monochromatic or polychromatic aberrations. | 05-05-2016 |
| 20160139378 | ZOOM LENS AND OPTICAL APPARATUS - A zoom lens is equipped with: a first lens group, which is fixed when changing magnification, provided most toward the magnification side; and a second lens group having a positive refractive power, which moves when changing magnification, provided adjacent to the first lens group at the reduction side thereof. The first lens group is constituted essentially by, in order from the magnification side to the reduction side, a front group having a positive refractive power and a rear group having a negative refractive power. Focusing operations are performed by changing the distance between the front group and the rear group. Conditional Formula (1): −0.3 5≦flb/ft<0 related to the focal length flb of the rear group and the focal length ft of the entire lens system at the telephoto end is satisfied. | 05-19-2016 |
| 20160178876 | MEMS-BASED ZOOM LENS SYSTEM | 06-23-2016 |
| 20170237967 | IMAGING DEVICE, IMAGING METHOD, AND IMAGE PROCESSING PROGRAM | 08-17-2017 |
