Class / Patent application number | Description | Number of patent applications / Date published |
359643000 | Eyepiece | 33 |
20090161225 | Head Mounting Virtual Display Apparatus - A display producing virtual visible images of various virtual display products including visual glasses virtual display, head-mounted display, single eye virtual display and virtual 3D display. It consists of a display worn on eyes and mounted on a fixation rack; this display consists of the lens amplifying device and the micro-display; the foresaid lens amplifying device consists of a lens installation rack and the optical lens mounted on the lens installation rack; a micro-display is equipped at rear part of the lens installation rack; the foresaid micro-display displays images through the connection of drive circuit board with the video device, characterized in that: the foresaid optical lens is an aspherical lens; moreover, the above mentioned aspherical lens realizes optical amplification and achromatic function by single aspherical lens. By using this device, a clear amplified image can be seen in front of the eyes of people. | 06-25-2009 |
20100020406 | LENS ARRANGEMENT - A lens arrangement suitable for looking through small holes is provided in which no conventional integral physical lens stop is required. The lens arrangement is relatively insensitive to its position, meaning that it may be set back behind the hole reducing the risk of detection and allowing rapid installation. | 01-28-2010 |
20100302645 | EYE PIECE AND TUNABLE CHROMATIC DISPERSION COMPENSATOR USING THE SAME - An eye piece ( | 12-02-2010 |
20110157709 | Visual display device - In the visual display device of the present invention, the first reflection plane | 06-30-2011 |
20110188126 | VISUAL DISPLAY APPARATUS - The visual display apparatus of the invention has an image display device, a projection optical system for projection of an image displayed on the image display device, an eyepiece optical system of positive reflecting power that uses an image coming from afar as an image projected from the projection optical system, and a cylindrical or conical diffusing surface located near an image projected from the projection optical system. The image projected from the projection optical system is located in such a way as to draw a circular arc at any position in the plane orthogonal to the optical axis of the projection optical system. | 08-04-2011 |
20110216422 | Image Display Device - An image display device may include an image generator, an ocular lens, an optical unit and a lens barrel. The optical unit may be disposed in an area between the image generator and the ocular lens. The optical unit may include at least one of an exit pupil expander and a mask in one or more arrangements. The lens barrel, when housing the ocular lens and the optical unit, may include an inner circumferential surface on which the ocular lens is supported to be rotatable around the optical axis thereof. The optical unit may, in some examples, be fixed to the ocular lens. A rotational position of the optical unit around the optical axis of the ocular lens is adjustable by rotating the ocular lens. | 09-08-2011 |
20110317274 | COUPLING DEVICE FOR DETACHABLY CONNECTING AN EYEPIECE OF AN ENDOSCOPE OPTICAL SYSTEM WITH A CAMERA LENS - A coupling device for detachably connecting an eyepiece of an endoscope optical system with a camera lens includes a receptacle for the eyepiece, attachment means for securing the eyepiece in the receptacle, and a manually activated handle arranged on the outside for releasing the attachment. The attachment means are controlled by the eyepiece so as to automatically attach the eyepiece in the receptacle while introducing the eyepiece into the receptacle. | 12-29-2011 |
20120038991 | FINDER APPARATUS AND IMAGING APPARATUS - A finder apparatus superimposes, on an image formed by an observation optical system of a reverse-Galilean finder including an objective lens group and an eyepiece lens group, display on a display member arranged outside an optical path of the observation optical system by using an optical path combination member arranged between the objective lens group and the eyepiece lens group, thereby making a user observe the image on which the display is superimposed. The finder apparatus includes a target lens group that guides light from the display member, and which is provided in an optical path from the display member to the eyepiece lens group. Further, the focal length of the eyepiece lens group, and a combined focal length from the target lens group through the eyepiece lens group satisfy predetermined formulas. | 02-16-2012 |
20120069448 | HEAD-MOUNTED DISPLAY DEVICE - Provided is a head-mounted display element, including: a first casing ( | 03-22-2012 |
20120134030 | COMPACT EYEPIECE USING AN IMERSED FIELD LENS - A first embodiment is a lens system having a plurality of refractive and reflective spherical elements that work as a magnifier to produce a distortion free, less than 1%, image with optical correction over a wide field of view. The system has at least one concave reflecting surface, and at least three convex refracting surfaces with the sign of the radius of one of the convex refracting surfaces being opposite of the sign of the radius of remaining two convex refracting surfaces. A second embodiment is a lens having a concave reflecting element which is on a substrate that is a negative lens by transmission with an index of refraction between 1.62.0 and a dispersion 49<νd>15. This is used in combination with at least 3 positive refracting surfaces with less dispersive power than the negative element and with the sign of the radius of one of the positive elements being opposite from the sign of the radius of the remaining positive elements. | 05-31-2012 |
20120320462 | Aimer - An aimer is provided. The aimer includes an object lens unit, a body and an eyepiece unit. The body is connected to the object lens unit. The eyepiece unit is connected to the body. The eyepiece unit includes a first pipe, a second pipe, a lens unit and a graduated pattern. The first pipe is connected to the body. The second pipe is connected to the first pipe, wherein the second pipe is rotated to move between a first position and a second position relative to the first pipe. The lens unit is disposed in the second pipe. The graduated pattern is formed on the second pipe. | 12-20-2012 |
20140022646 | Adapter Sleeve For Observation Telescope - The invention relates to an adapter sleeve for fastening an accessory, such as a fixture for an optical recording or measuring device, to an eyepiece portion of an observation telescope. The adapter sleeve has a basic body that centers the adapter sleeve on the eyepiece portion, an attachment portion that fastens the accessory to the adapter sleeve, and a fixing device that locks the adapter sleeve at the eyepiece portion. Likewise, the present invention relates to different fixtures for attaching an optical recording or measuring device to the eyepiece portion of an observation telescope. This provides both an adapter sleeve and a fixture that meets increased positioning accuracy requirements, while being adjustable to fit the needs of different observation telescopes and optical recording or measuring devices. | 01-23-2014 |
20150077858 | EYEPIECE OPTICAL SYSTEM AND OPTICAL APPARATUS - Providing an eyepiece optical system | 03-19-2015 |
20160062104 | EYEPIECE LENS, OBSERVATION DEVICE INCLUDING THE SAME, AND IMAGING APPARATUS - One or more eyepiece lenses, one or more observation devices using an eyepiece lens and one or more imaging apparatuses using an eyepiece lens are provided herein. At least one embodiment of an eyepiece lens includes five or more lenses, including two or more resin lenses each having a lens surface of an aspheric shape, in which a glass lens is arranged closest to an observation side in the eyepiece lens, and a specific gravity of a material of all of the two or more resin lenses is appropriately set. | 03-03-2016 |
359644000 | Having four components | 4 |
20140218806 | EYEPIECE LENS SYSTEM AND IMAGE OBSERVATION DEVICE - An eyepiece lens system forms a magnified virtual image of an object to be observed, the system including: a first group disposed adjacent to an image display device and having negative refractive power; and a second group disposed adjacent to the first group on a side closer to an eye and having positive refractive power; the first group including a cemented doublet lens of a biconcave lens and a biconvex lens, the second group including two or three positive lenses, being telecentric on the object side. The eyepiece lens system has satisfactory telecentricity on the object side and satisfactorily corrects aberration. | 08-07-2014 |
20150103411 | EYEPIECE OPTICAL SYSTEM AND ELECTRONIC APPARATUS - An eyepiece optical system includes: a first lens having a biconvex shape in optical axis center and having positive refractive power; a second lens having negative refractive power; a third lens having positive refractive power; and a fourth lens having positive refractive power. The first to fourth lenses are arranged in order from an image to be observed. The following conditional expression is satisfied, | 04-16-2015 |
20150362720 | EYEPIECE LENS AND IMAGING APPARATUS - An eyepiece lens consists essentially of a first lens having positive refractive power, a second lens having negative refractive power, a third lens having positive refractive power, and a fourth lens having positive refractive power in this order from an observation object side. Conditional expression (1): −3.512-17-2015 | |
20160139361 | EYEPIECE OPTICAL SYSTEM - An eyepiece optical system is achieved that is suitable for an object image displayed on a miniaturized image display device and can magnify the object image to a high magnification ratio, the distance to the eyepoint is long while achieving a wide apparent visual angle at a short focal length, various aberrations can be favorably corrected while achieving a superior optical quality, and the pupil diameter can be enlarged. The eyepiece optical system includes a first lens element having a meniscus shape with a concave surface on the object side, a positive second lens element, a negative third lens element, and a positive fourth lens element, in that order from the object side toward the eye side. | 05-19-2016 |
359645000 | Having three components | 11 |
20090097128 | Viewing optical system, and imaging apparatus comprising the same - The invention relates to a viewing optical system for viewing an object image formed on a focusing screen, and an imaging apparatus comprising the same. An image erection optical system comprises a prism having an internal reflective surface. An eyepiece optical system comprises, in order from a screen side to an exit pupil side, a first lens component having negative refracting power wherein its exit pupil-side surface has a paraxial-radius-of-curvature absolute value smaller than that of its screen-side surface, a second lens component in a double-convex shape and a third meniscus lens component in a meniscus shape concave on an exit pupil side. The total number of lens components included in the eyepiece optical system is 3, and the following conditions (1), (2) and (3) are satisfied. | 04-16-2009 |
20090262434 | Viewing optical system and imaging apparatus incorporating the same - The invention provides a viewing optical system comprising:
| 10-22-2009 |
20090279182 | FINDER OPTICAL SYSTEM AND IMAGE PICKUP APPARATUS USING THE SAME - A finder optical system includes an image taking lens configured to form a photogenic subject image, an erecting image forming member configured to convert the photogenic subject image an erecting image, and an ocular lens configured to enable observation the erecting image of the photogenic subject image therethrough, wherein the ocular lens includes, in an order from the erecting image forming member to the observation side, a first lens group of negative refracting power, a second lens group of positive refracting power and configured to move in an optical axis direction to perform diopter adjustment, and a third lens group having at least one positive lens and at least one negative lens and having a positive or negative overall refracting power, and wherein, when a focal length of the whole system as the ocular lens is at −1 diopter is denoted by f, a composite focal length of the negative lens or lenses of the third lens group is denoted by f | 11-12-2009 |
20090290224 | Viewing optical system and imaging apparatus using the same - The invention provides a viewing optical system positioned between a viewing plane as a virtual plane and an eye point. The viewing optical system comprises, in order from the viewing plane side, a first lens group including a positive lens or a negative lens, a second lens group including a cemented lens in which at least one negative lens and at least one positive lens are cemented together, and a third lens group including a positive lens. Of lenses forming the first, second, and third lens groups, at least one lens surface is an aspheric surface. | 11-26-2009 |
20100149649 | ZOOM EYEPIECE LENS SYSTEM - A zoom eyepiece lens system EL includes, in order from an eyepoint EP side: a first lens group G | 06-17-2010 |
20100290129 | Eyepiece optical system and electronic view finder incorporating the same - The invention relates to an eyepiece optical system that, albeit being of small size, works in favor of gaining an angle of field and optical performance, and an electronic view finder incorporating such an eyepiece optical system. Specifically, the invention is characterized by comprising, in order from an object side to an exit side thereof, a first lens group that is a single lens that has positive refracting power and is in a meniscus configuration concave on its object side, a second lens group that is a single lens that has negative refracting power and is in a meniscus configuration concave on its object side, and a third lens group that is a single lens that has positive refracting power, wherein an object-side concave lens surface in the first lens group is an aspheric surface, an object-side concave lens surface in the second lens group is an aspheric surface, and an exit-side lens surface in the third lens group is an aspheric surface. | 11-18-2010 |
20110122502 | Eyepiece optical system and electronic view finder incorporating the same - The invention relates to an eyepiece optical system that, albeit being of small size, works in favor of gaining an angle of field and optical performance, and an electronic view finder incorporating such an eyepiece optical system. Specifically, the invention is characterized by comprising, in order from an object side to an exit side thereof, a first lens group that is a single lens that has positive refracting power and is in a meniscus configuration concave on its object side, a second lens group that is a single lens that has negative refracting power and is in a meniscus configuration concave on its object side, and a third lens group that is a single lens that has positive refracting power, wherein an object-side concave lens surface in the first lens group is an aspheric surface, an object-side concave lens surface in the second lens group is an aspheric surface, and an exit-side lens surface in the third lens group is an aspheric surface. | 05-26-2011 |
20120099206 | EYEPIECE OPTICAL SYSTEM HAVING A REFLECTIVE SURFACE AND ELECTRONIC VIEW FINDER INCORPORATING THE SAME - The eyepiece optical system of the invention is characterized by comprising, in order from the display plane side on which images being viewed are formed toward the exit side, a first lens component of positive refracting power, a reflecting member having only one reflective surface, a second lens component of negative refracting power and a third lens component of positive refracting power. The lens component here means a lens block that, in an optical path involved, contacts air at only two surfaces: the display-plane-side refractive surface and the exit-side refractive surface. | 04-26-2012 |
20140198391 | EYEPIECE OPTICAL SYSTEM - In order from the object side, a first lens having positive power with a convex observation-side surface, a second lens having negative power and a meniscus shape with a concave object-side surface, and a third lens having positive power with an observation-side surface having a smaller radius of curvature than that of an object-side surface are provided. The first, second and third lenses are single lenses. The conditional expressions (1): 0.907-17-2014 | |
20140307326 | EYEPIECE LENS, VIEWFINDER OPTICAL SYSTEM AND OPTICAL APPARATUS EQUIPPED WITH THE SAME, AND METHOD FOR MANUFACTURING EYEPIECE LENS - An eyepiece lens (EL) used for a viewfinder optical system (VF) for viewing, using the eyepiece lens (EL), an image formed by an objective lens (OL), an image displayed by a display member, or an object, wherein an antireflection coating ( | 10-16-2014 |
20150070777 | EYEPIECE LENS AND OBSERVATION APPARATUS HAVING THE SAME - There is provided an eyepiece lens which has a long length from an image display surface to a first lens, a high observation magnification, and a large apparent field of view. An eyepiece lens used to observe an image displayed on the image display surface includes a first lens with a positive refractive power, a second lens with a negative refractive power, and a third lens with a positive refractive power sequentially from the image display surface side to the observation side. The lens surface of the first lens on the image display surface side has a convex shape on the image display surface side. The lens surface of the second lens on the observation side has a concave shape on the observation side. The focal length of the eyepiece lens, the focal length of the lens surface, and the focal length of the lens surface are set appropriately. | 03-12-2015 |
359646000 | Having two components | 4 |
20090290225 | Viewing optical system and imaging apparatus using the same - The invention provides a viewing optical system positioned between a viewing plane as a virtual plane and an eye point. The viewing optical system comprises, in order from the viewing plane side, a cemented lens and a positive lens component, and satisfies the following condition (1). | 11-26-2009 |
20090290226 | Viewing optical system and imaging apparatus using the same - The invention provides a viewing optical system positioned between a viewing plane as a virtual plane and an eye point. The viewing optical system comprises, in order from the viewing plane side, a first lens and a filter. | 11-26-2009 |
20100172029 | IMAGE FORMING LENS AND MICROSCOPE APPARATUS USING THE SAME - An image forming lens has a configuration that an image forming lens IL for receiving parallel beams of light emitted from an observation target object and emerging from an infinity-designed objective lens of a microscope and forming an image of the observation target object in a predetermined position, is constructed of, in order from an object side, a first lens group G | 07-08-2010 |
20140347739 | EYEPIECE LENS AND DISPLAY UNIT - An eyepiece lens includes: a first lens having positive refractive power, the first lens having a convex surface that faces toward an eye point side; and a second lens having positive refractive power, the second lens having a convex surface that faces toward the eye point side. The first and second lenses are arranged in order from the eye point side. Following conditional expressions are satisfied, | 11-27-2014 |