Patent application number | Description | Published |
20090040397 | Projector with image sensor - A projector includes a projecting module for projecting a projecting image on a screen panel, an image sensor for capturing an image of an object which is located outside of the projecting module and faces toward the lens module, a light director, and a controlling unit. The projecting module has a lens module and a light source for emitting light transmitting through the lens module. The light director is movable between a first position where the light director is located outside of a light path associated with the lens module, and a second position where the light director is configured for directing light of the object through the lens module to be incident on the image sensor. The controlling unit controls the light director to move between the first and second positions. | 02-12-2009 |
20090141268 | APPARATUS FOR MEASURING STRAY LIGHT IN LENS MODULE - An apparatus for measuring stray light in a lens module includes a light source, an image sensor, an object distance adjusting unit, and an object distance measuring device. The light source is disposed at an object side of the lens module for emitting light to the lens module. The image sensor is disposed at an image side of the lens module for measuring an intensity of stray light coming into the lens module. The object distance adjusting unit includes an opaque barrier defining a slit therein, and a laser aligned with the slit, the laser being configured for emitting a laser light beam through the slit thereby forming a light spot serving as an object. The object distance measuring device is configured for measuring an object distance. The opaque barrier of the object distance adjusting unit is movable relative to the wavefront sensor so as to adjust the object distance. | 06-04-2009 |
20090290861 | FLASH DEVICE AND IMAGE CAPTURING DEVICE HAVING SAME - A flash device includes a flash module and a color wheel. The flash module includes a flash lamp and a trigger circuit for triggering the flash lamp. The color wheel includes a color filter disk. The color filter disk includes a number of filter segments, wherein each of the filter segments is capable of being inserted into the light-emitting path of the flash lamp by rotation the color filter disk. | 11-26-2009 |
20090323207 | LENS HOLDER AND LENS APPARATUS HAVING SAME - A lens holder coupling a lens to an actuator is disclosed. The actuator includes a vibrator and a driving rod coupled to the vibrator along a vibration direction of the vibrator. The lens holder includes a lens carrier, a transmission member, a guiding member, and a fixing member. The lens carrier is configured for accommodating the lens. The transmission member connected to the lens carrier defines a groove having a transmission axis parallel to an optical axis of the lens receiving the driving rod. The guiding member connected to the lens carrier defines a hole receiving a guide rod substantially parallel to the optical axis of the lens. The fixing member includes a main body and an elastic sheet, the main body being fixed to the transmission member, the elastic sheet extending from the main body and covering the groove and configured for elastically contacting the driving rod. | 12-31-2009 |
20100172040 | FOCUS MODULE AND METHOD FOR MANUFACTURING SAME - The present disclosure provides a focus module including a substrate, a holder, at lease one second magnet, a frame and an elastic element. The substrate includes at least one first magnet and an aperture. The frame is fixed on the substrate and defining a hole receiving the holder. The second magnet is fixed on the holder. At least one of the first magnet and the second magnet is an electromagnet. The elastic element includes a first end, a second end, and at least one U-shape bend connected the first and second ends. The first end is fixed on the side surface of the holder. The second end is fixed on the inner surface of the hole. The two sides of the U-shape bend are parallel to the side surface of the holder and the inner surface of the hole. The present invention also provides a method for manufacturing the focus module. | 07-08-2010 |
20120099207 | WIDE-ANGLE RELAY LENS AND IMAGING SYSTEM HAVING SAME - A relay lens is used for an imaging system having a main lens. The main lens has a pupil plane. The relay lens, in the order from the subject side to the image side thereof, includes a first lens of negative refractive power, and a second lens of positive refractive power. The first lens has a first principle plane and a second principle plane. The second lens has a third principle plane and a fourth principle plane. The relay lens system satisfies the following formulas: 0.53<|ƒ1/ƒ2|<0.57; 1.54<ν1/ν2<3.11; 0.2204-26-2012 | |
20120099208 | ZOOM LENS SYSTEM - A zoom lens system is used for imaging an object to an image plane. The system, in the order from the object side to the image plane, includes a first lens group with positive refraction power, a second lens group with negative refraction power, a third lens group with positive refraction power, an aperture stop, a fourth lens group with positive refraction power, and a fifth lens group with negative refraction power. The fifth lens group comprises a lens of negative refraction power and a lens of positive refraction power. The system satisfies the formulas: −0.1804-26-2012 | |
20120099209 | ZOOM LENS SYSTEM - A zoom lens system includes, in the order from the object side to the image side thereof, a first lens group of positive refraction power, a second lens group of negative refraction power, a third lens group of positive refraction power, a fourth lens of positive refraction power, and an imaging plane. The first lens group and the third lens group are immovably mounted. The second lens group and the fourth lens group are movably mounted. The zoom lens system satisfies the formulae: 504-26-2012 | |
20120099210 | PROJECTION LENS SYSTEM WITH HIGH RESOLUTION AND COMPACT SIZE - The present disclosure relates to a projection lens system for a projector having a spatial light modulator (SLM). The projection lens system includes, in order from the magnified end to the minified end thereof, a first lens group with negative refraction power, a second lens group with positive refraction power, and a third lens group with positive refraction power. The projection lens system satisfies the following formulas: 304-26-2012 | |
20120099211 | SUPER-WIDE-ANGLE LENS SYSTEM AND IMAGING MODULE HAVING SAME - A super-wide-angle lens system for imaging an object on an imaging surface, includes a first lens group with negative refraction power and a second lens group with positive refraction power. The first lens group includes a first spherical lens with negative refraction power, a second spherical lens with negative refraction power, and a third spherical lens with positive refraction power. The first lens has a first surface facing the object side of the first lens group. The second lens group includes a fourth spherical lens with positive refraction power and a fifth spherical lens with negative refraction power. The system satisfies the formulas: 0.0104-26-2012 | |
20120105972 | ZOOM PROJECTION LENS - A zoom projection lens includes, in the order from the magnification side to the minification side thereof, a first lens group with negative refraction power, a second lens group with positive refraction power, a third lens group with positive refraction power, a fourth lens group with negative refraction power, and a fifth lens group with positive refraction power. The first lens group, the second lens group, the third lens group, and the fourth lens group are movably positioned. The fifth lens group is immovably positioned. The zoom projection lens satisfying the formulae: 1.0<|F1/Fw|<1.3; 2.5<|F3/Fw|<2.7; 2.81<|F5/Fw|<2.83; and 0.21<|F2/F4|<0.24, wherein F1-F5 respectively represent the effective focal lengths of the first, second, third, fourth, and fifth lens groups, Fw represents the shortest effective focal length of the zoom projection lens. | 05-03-2012 |
20120105973 | ZOOM LENS SYSTEM - A zoom lens system includes, from the object-side to the image-side thereof, a first lens group, a second lens group, and a third lens group. The first lens group includes a first lens and a second lens. The second lens includes a third lens, a fourth lens, and a fifth lens. The fourth lens and the fifth lens are attached to each other. The third lens group includes a sixth lens. The zoom lens system satisfies the following conditions: 0.3505-03-2012 | |
20120105975 | ZOOM LENS SYSTEM HAVING HIGH ZOOM RATIO AND SHORT OVERALL LENGTH - A zoom lens system includes, in order from the subject side to the image side thereof, a first lens group of positive refractive power, a second lends group of negative refractive power, a third lens group of positive refractive power, and a fourth lens group of positive refractive power. The zoom lens system satisfies the following formulas: −0.1505-03-2012 | |
20120105978 | PROJECTION LENS SYSTEM WITH HIGH RESOLUTION AND COMPACT SIZE - A projection lens system includes, from the magnified side to the reduced side thereof, a first lens group having negative refractive power, a second lens group having positive refractive power, a third lens group having positive refractive power, and a field lens. The projection lens system satisfies the following conditions: 2.905-03-2012 | |
20120105979 | TRANSFER LENS AND WIDE-ANGLE LENS SYSTEM USING SAME - A lens system includes a main lens and a transfer lens aligned with the main lens. The optical axis of the main lens is superposed on that of the transfer lens. The transfer lens includes, in order from the object side to the image side thereof, a first lens having negative refraction power, and a second lens having positive refraction power. The lens system satisfies the following conditions: 0.4<|f1/f2|<0.8; 205-03-2012 | |
20120105980 | 360 DEGREE VIEWING ANGLE LENS UNIT AND OPTICAL LENS SYSTEM USING SAME - A 360 degree viewing angle lens unit, from the object side to the image side thereof, includes a 360 degree viewing angle lens and a relay lens. The viewing angle lens includes an annular incident surface, a first reflective surface, a second reflective surface, and an emitting surface. The annular incident surface has a positive radius of curvature and symmetrically concentric around an optical axis of the lens unit. The first reflective surface has a positive radius of curvature and is symmetrically concentric around the optical axis. The second reflective surface has a negative radius of curvature, and is coaxial with the incident surface. The emitting surface has a positive radius of curvature and is coaxial with the first reflective surface. The relay lens has a positive refractive power and is aligned with the emitting surface. The relay lens is configured for condensing image light output from the emitting surface. | 05-03-2012 |
20120105981 | WIDE-ANGLE LENS SYSTEM HAVING SHORT OVERALL LENGTH - A lens system includes, in order from the subject side to the image side of thereof, a first lens group of negative refractive power, a second lends group of positive refractive power, and an image plane. The first lens group includes a first spherical lens, a second spherical lens, and a third spherical lens arranged in this order from the subject side to the image side of the lens system. The first spherical lens includes a first subject surface and a first image surface. The lens system satisfies the following formula: 8.905-03-2012 | |
20120113526 | ZOOM PROJECTION LENS SYSTEM - A zoom projection lens system, in order from the magnification side to the minification side thereof, includes a first lens group with negative refraction power, a second lens group with positive refraction power, a third lens group with positive refraction power, a fourth lens group with negative refraction power; and a fifth lens group with positive refraction power. The first, second, third, fourth lens group are movably positioned, and the fifth lens group is immovably positioned. The first lens group includes a first aspherical plastic lens. The second lens group includes a second aspherical plastic lens. The fourth lens group includes a third aspherical plastic lens. The system satisfies the formula: −2.4≦F | 05-10-2012 |
20120127583 | IMAGE LENS SYSTEM - An image lens system includes a first lens group that includes a first and a second lens, a movable second lens group that includes a third and a fourth lens, and a third lens group that includes a fifth lens. The image lens system satisfies the formulas: 2.1≦Lw/(a*Y)<2.5; 1.9≦|Fp|/F | 05-24-2012 |
20120127585 | ZOOM LENS SYSTEM HAVING HIGH ZOOM RATIO AND SHORT OVERALL LENGTH - A zoom lens system includes a first lens group with positive refractive power, a second lens group with negative refractive power, a third lens group with positive refractive power, and a fourth lens group with positive refractive power. The lens groups can move along the optical axis of the zoom lens system. The zoom lens system satisfies the formula: 0.15<|L | 05-24-2012 |
20120162782 | COMPACT ZOOM LENS BARREL - A zoom lens barrel includes a fixed barrel, a guide barrel received in the fixed barrel, a cam barrel received in the fixed barrel and housing the guide barrel, a zoom barrel sandwiched between the guide barrel and the cam barrel, and a lens cover covering on the zoom barrel. The cam barrel includes a flange radially formed on an end close to the lens cover. The zoom barrel includes a ring portion protruding out from an end close to the fixed barrel. A step surface is formed between the outer side surface of the zoom barrel and that of the ring portion. When the zoom lens barrel is in an unfolded state, the step surface interferingly resists against a bottom surface of the flange, to limit an axial movement between the cam barrel and the zoom barrel. | 06-28-2012 |
20120169839 | WIDE-ANGLE ZOOM LENS AND CAMERA MODULE USING SAME - A wide-angle zoom lens includes a first lens group with positive refraction power, a second lens group with negative refraction power, a third lens group with positive refraction power, and a fourth lens group with positive refraction power. The first lens group, the second lens group, the third lens group, and the fourth lens group move along an optical axis of the zoom lens in focusing. The wide-angle zoom lens satisfies the formulas: 1.607-05-2012 | |
20120182626 | ZOOM PROJECTION LENS SYSTEM - A zoom projection lens system includes a first lens group with negative refraction power and a second lens group with positive refraction power. The first lens group includes a first lens with negative refraction power. The second lens group includes a second lens with positive refraction power, a third lens with positive refraction power, a fourth lens with negative refraction power, and a fifth lens with positive refraction power. The zoom projection lens system satisfies the following formulas: 1.9<|F1/Fw|<2.1, 0.5<|f4/Fw|<0.8, 0.95<|f5/Fw|<1.2, where “F1”, “f4” and “f5” are respectively the effective focal lengths of the first lens group, the fourth lens and the fifth lens, “Fw” is the effective focal lengths of the zoom projection lens system in the wide angle state. | 07-19-2012 |
20120314303 | PROJECTION LENS - A projection lens includes, in order from the magnification end to the minimization end thereof: a first lens group of a negative refractive power; and a second lens group of a positive refractive power. The projection lens satisfies the formula: 0.06112-13-2012 | |
20130088787 | ZOOM LENS AND IMAGING DEVICE USING SAME - Provided is a zoom lens for imaging an object on an imaging surface. The zoom lens includes, in the order from an object side to an image side thereof, a first lens group with positive refraction power, a second lens group with negative refraction power, a third lens group with positive refraction power, and a fourth lens group with positive refraction power. The first lens group includes a first surface. The zoom lens satisfies the formula: 0.15<|L3|/Lt<0.25, where L3 is a distance of the movement of the third lens group along an optical axis of the zoom lens when the zoom lens is switched between a wide-angle state and a telephoto state, and Lt is a distance from the first surface to the imaging surface. | 04-11-2013 |
20130094100 | LENS SYSTEM - A lens system with positive refraction power, in order from the object-side to the image-side, includes a first lens group with negative refraction power and a second lens group with positive refraction power. The first lens group includes a first lens with negative refraction power, a second lens with positive refraction power, and a third lens with positive refraction power. The second lens group includes a fourth lens with negative refraction power, a fifth lens, and a sixth lens. The lens system satisfies the following condition: 504-18-2013 | |
20130100541 | LENS SYSTEM WITH REDUCED LENGTH AND HIGH RESOLUTION - A lens system includes, in this order from the object side to the image side of the lens system, a first lens group and a second lens group. The first lens group includes, in this order from the object side to the image side of the lens system, a first lens of negative refractive power and a second lens of positive refractive power. The second lens group includes, in this order from the object side to the image side of the lens system, a third lens of negative refractive power, a fourth lens positive refractive power, and a fifth lens of negative or positive refractive power. The lens system satisfies the following condition formula: 0.304-25-2013 | |
20130100544 | PROJECTION LENS SYSTEM WITH HIGH RESOLUTION AND COMPACT SIZE - A projection lens system includes, in order from the magnified side to the reduced side thereof, a first lens group with negative refractive power, a second lens group with a positive refracting power, and a spatial light modulator. The projection lens system satisfies the following condition: 3.47804-25-2013 | |
20130107375 | IMAGE LENS WITH LOW CHROMATIC ABERRATION AND HIGH RESOLUTION | 05-02-2013 |
20130135752 | ZOOM LENS SYSTEM - A zoom lens system includes a first lens group of negative refractive power, a second lens group of positive refractive power and a third lens group of positive refractive power. The zoom lens system satisfies the following condition formulas: 0.78<|f | 05-30-2013 |
20130141804 | PROJECTION LENS SYSTEM WITH LONG BACK FOCAL LENGTH - A projection lens system, in the order from a magnified side to a reduced side, includes a first lens group with negative refraction power and a second lens group with positive refraction power. The projection lens system satisfies the formulas: −1.5506-06-2013 | |
20130148210 | PROJECTION LENS SYSTEM - A projection lens system includes, in order from a screen-side to an SLM-side thereof, a first lens group of negative refractive power which includes a first lens, and a second lens group of positive refractive power. The second lens group includes a second to fifth lenses in order from the screen-side to the SLM-side of the projection lens system. The projection lens system satisfies the following condition formulas: 1.95<|F1/Fw|<2.15, 0.5<|f4/Fw|<0.7, and 1.05<|f5/Fw|<1.25, where F1 is the effective focal length of the first lens group, f4 is the focal length of the fourth lens, and f5 is the focal length of the fifth lens, Fw is the effective focal length of the projection lens system which is in the wide-angle state. | 06-13-2013 |
20130148213 | PROJECTION LENS SYSTEM WITH HIGH RESOLUTION AND COMPACT SIZE - A projection lens system includes, in order from the magnified side to the reduced side thereof, a first lens group with negative refractive power, and a second lens group with a positive refracting power. The first lens group includes a first lens having a negative refracting power. The projection lens system satisfies the following condition: | 06-13-2013 |
20130155511 | ZOOM LENS SYSTEM - A zoom lens system includes, in order from the object side to the image side, a first, a second, and a third lens groups. The first lens group includes, in order from the object side to the image side, a first and a second lenses. The second lens group is capable of floating to realize an image stabilizating function and includes, in order from the object side to the image side, a third to sixth lenses. The zoom lens system satisfies various formulas, including 0.306-20-2013 | |
20130163093 | WIDE-ANGLE ZOOM LENS SYSTEM - A wide-angle zoom lens system includes a first lens group with negative refraction power, a second lens group with positive refraction power, and a third lens group with positive refraction power. The first lens group, the second lens group, and the third lens group move along an optical axis of the zoom lens system in focusing. The wide-angle zoom lens system satisfies the formulas: 0.77<|f2/f1|<1.1; and 0.706-27-2013 | |