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| Number | Title | Issue Date |
| 7679840 | Optical apparatus An optical apparatus includes an image taking optical system that includes a first lens unit arranged on a most object side and a second lens unit movable in an optical axis direction further on an image surface side than the first lens unit, a first lens barrel tha... | 03/16/2010 |
| 7430368 | Zoom lens assembly capable of macro photography A zoom lens assembly includes an optical system forming an optical axis and having at least one lens group, a base member (1), a macro ring member (2) rotatably engaged with the base member for accomplishing both zooming and focusing operations, a lens... | 09/30/2008 |
| 7391965 | Lens apparatus and image-taking apparatus A lens apparatus is disclosed, which is capable of keeping the engagement of a protruding portion of a first member and a cam groove portion of a second member even if an external force acts on the apparatus. The lens apparatus comprises: a first member including fi... | 06/24/2008 |
| 7352387 | Camera with positioning device used to capture magnified and demagnified images To provide a camera that is suited to shoot both a demagnified image and a magnified image. The camera includes a housing body 11 containing a CCD 15, and a lens barrel 12. An abutted member 20 having an objective lens 40 th... | 04/01/2008 |
| 7339750 | Focusing a laser beam A device for focusing a laser beam includes a first telescopic configuration and a second telescopic configuration. The first telescopic configuration includes a collimating optical element for collimating the laser beam and a downstream focusing optical element for... | 03/04/2008 |
| 7068441 | Zoom lens optical system A zoom lens optical system includes a first optical group with a first lens having negative refraction, a second lens having positive refraction, and a light path changing unit to change the path of an incident light passing through the first lens to have light inci... | 06/27/2006 |
| 7009779 | Macro lens A macro lens comprised of a front lens group of a retrofocus type and a rear lens group of which component lenses are aligned in the order from the closest to the subject. The front lens group includes a first lens of a negative meniscus lens having its convex surfa... | 03/07/2006 |
| 6943963 | Collapsible lens barrel When a wheel is rotated, first inclined portions of end surface cams provided on the wheel push corresponding cam followers formed on a movable cylinder. Accordingly, the movable cylinder holding a photographing lens is extended. Then, when each of the cam followers... | 09/13/2005 |
| 6940891 | High precision optical imaging systems and related systems This disclosure describes the design and construction of high-precision off-axis optical imaging systems. The disclosure also describes the design and construction of high-precision mounting structures for rigidly holding optical elements in an optical imaging syste... | 09/06/2005 |
| 6918672 | Arrangement for rotatable adjustment of a cap on an eyepiece housing An arrangement for rotatable adjustment of a cap on an eyepiece housing with a stationary pin pointing radially outward from the eyepiece housing and a groove which is assigned to the pin, arranged on the inner side of the cap and rises in the axial direction, is ch... | 07/19/2005 |
| 6912096 | Rear-focus zoom lens device and video camera A rear-focus zoom lens device includes a wide-angle direction rotation restricting unit and a telephoto direction rotation restricting unit for separately restricting rotations of a zoom ring in a wide-angle direction and a telephoto direction and for separately can... | 06/28/2005 |
| 6784937 | Lens assembly of digital camera with non-step focusing function The present invention discloses a lens assembly comprising an enclosure, annular rotating means, gear assembly, spring, leaf spring, cap, and lens. The enclosure has a housing and haft. The housing has a lower hole for supporting the image capture apparatus, and an ... | 08/31/2004 |
| 6707620 | Zoom lens mechanism A zoom lens mechanism includes a switching lens group frame which supports a first sub-lens group frame and a second sub-lens group frame; a shift cam mechanism provided on opposed surfaces of the first and second sub-lens group frames, respectively, the shift cam m... | 03/16/2004 |
| 6646816 | Portable terminal and drive method for photographic optical system A portable telephone 1 is provided with a body 2 and a camera unit 3. In the camera unit 3, photography is switched to macro photography by pressing a macro button 22 on the body 2. In this way, the convenience of the portable telephone 1 is improved beca... | 11/11/2003 |
| 6466379 | Lens barrel A lens barrel of the present invention includes a first zoom frame and a second zoom frame which are moved frontward and rearward by a cam frame. The first zoom frame holds a first lens group, and the second zoom frame contacts and presses a second-group ... | 10/15/2002 |
| 6449102 | Zoom lens device adapted to macro photography In a zoom lens device, the mechanism for guiding lens groups for achieving a composite focal length for the zoom lens function is used also for positioning the lens groups for the macro lens function. In particular, the position for the macro lens functio... | 09/10/2002 |
| 6271882 | TV camera lens device A TV camera lens device includes a flange back length control signal for moving a master lens group to a position of the proper flange back length in accordance with the operation of a flange back length control. It further includes a macro control signal... | 08/07/2001 |
| 6144510 | Thermal compensation system for lens focus adjustment A thermal compensation system for an optical lens that has a focus adjustment with visible focus distance numerals and a juxtaposed index line for identifying the focus distance. The index line is provided on an internal ring slidably mounted to rotate ci... | 11/07/2000 |
| 6059721 | Endoscope having variable magnification and focusing An endoscope includes a shaft receiving at least a pair of the lens groups movable jointly to provide focusing of an image upon actuation of an adjusting wheel and adapted to be disengaged to have displacement of one of the pair of lens groups relative to... | 05/09/2000 |
| 5917659 | Zoom lens barrel being capable of close distance photographing in wide end side A zoom lens barrel is provided in which the amount of forward movement made by a focus lens is altered in accordance with a change in a focal length caused by a zooming operation. The zoom lens barrel includes a moving mechanism for rotating a cam member ... | 06/29/1999 |
| 5900992 | Collapsible lens barrel A lens barrel capable of shortening its full length includes a photo-taking optical system with a rear unit lens and a front unit lens, a rear unit lens holding cylinder holding the rear unit lens, a front unit lens holding cylinder holding the front unit... | 05/04/1999 |
| 5850577 | Macro-photographing system in zoom lens camera A macro-photographing system in a zoom lens camera includes a lens system having at least a movable front lens group on the object side and a movable rear lens group on the image surface side, a whole-unit driving device which moves the front lens group a... | 12/15/1998 |
| 5826117 | TV camera lens driving device and TV camera lens A TV camera lens of the present invention is provided with a position-control signal generating means for outputting a position-control signal representing a position where a master lens group should be positioned, and a rate-control signal generating mea... | 10/20/1998 |
| 5790317 | Zoom lens system In a zoom lens system in which the movement locus of a focusing lens unit is defined by synthesizing a focus cam and a zoom compensation cam, when the sensitivity of movement of an image point in association with the movement, in the direction of the opti... | 08/04/1998 |
| 5774276 | Zoom lens system In a zoom lens system in which the movement locus of a focusing lens unit is defined by synthesizing a focus cam and a zoom compensation cam, and the sensitivity of movement of an image point in association with the movement, in the direction of the optic... | 06/30/1998 |
| 5751499 | Zoom lens system In a zoom lens system in which the movement locus of a focusing lens unit is defined by synthesizing a focus cam and a zoom compensation cam, when the sensitivity of movement of an image point in association with the movement, in the direction of the opti... | 05/12/1998 |
| 5748387 | Zoom lens system There is provided a zoom lens of an inner focusing system which is capable of an auto-focusing operation and a manual focusing operation with a high precision. A zoom lens system in which a movement locus of a focusing lens unit is defined by synthesizing... | 05/05/1998 |
| 5594517 | Enlargement photographing apparatus An enlargement photographing apparatus of this invention, arranged between photographing lenses and a camera body, comprises a distance changing unit extending and retracting in an optical-axis direction for changing a distance between the photographing l... | 01/14/1997 |
| 5467226 | Optical apparatus having a lens for zooming movable to a zoom area and a macro area An optical apparatus has a lens for zooming movable to a zoom area and a macro area, and a stopper operable to be changed over to a first state in which the movement of the lens from the zoom area to the macro area is prohibited and a second state in whic... | 11/14/1995 |
| 5345287 | Apparatus for correcting parallax and/or diopter of camera A parallax and/or diopter correcting apparatus in a camera having a photographing optical system separate from a finder optical system, including a reflecting mirror provided in the finder optical system to change the direction of the optical axis thereof... | 09/06/1994 |
| 5313329 | Lens hood assembly for zoom lens A lens hood assembly is provided for use with a zoom lens having a group of variable power lenses for varying focal length, the assembly comprising a lens hood which is adapted to be moved along the optical axis direction of the zoom lens and which is pro... | 05/17/1994 |
| 5223980 | Lens barrel operating mechanism A lens barrel operating mechanism for use in a lens barrel provided with a stationary ring is provided. An operating ring arranged on the outer circumference of the stationary ring is provided to be capable of moving in the optical axis direction of the s... | 06/29/1993 |
| 5194991 | Zoom lens system A zoom lens system comprising a first lens unit having a positive refractive power, a second lens unit having a positive refractive power and a third lens unit having a negative refractive power, and is modifiable into a macro optical system for photograp... | 03/16/1993 |
| 5170200 | Camera system A camera system for communicating data between a micro computer in a camera body and a macro lens mounted to the camera body. A K value of an automatic focusing drive pulse coefficient is transmitted from the macro lens to the micro computer of the camera... | 12/08/1992 |
| 5159494 | Zoom lens system The present invention provides a zoom lens system comprising, in the order from the object side, a first lens unit having positive refractive power, a second lens unit having positive refractive power and a third lens unit having negative refractive power... | 10/27/1992 |
| 5144492 | Lens control system A lens control system is disclosed, which comprises a focusing lens drive for driving a focusing lens for focus control, a zooming lens drive for driving a zooming lens for zooming, a focusing lens position detector for detecting the position of the focus... | 09/01/1992 |
| 5037187 | Zoom lens mount assembly A zoom lens mount assembly in which a zooming cam frame is moved along the optical axis while rotating therearound and respective movable frames supporting an optical system are driven by such rotation and movement of the cam frame to effect a desired zoo... | 08/06/1991 |
| 4936664 | Zoom lens drive system for camera A zoom lens for a camera having a between-the-lens shutter includes a motor for moving the lens along an optical axis in forward and rearward directions. A switch is operable by an operator to control operation of the motor for moving the lens from an ini... | 06/26/1990 |
| 4899190 | Zooming optical system control device A zooming optical system control device for controlling the setting of a zooming optical system to one of a plurality of regions such as a zooming region wherein the optical system ensures zooming photographing, a macro region wherein the optical system e... | 02/06/1990 |
| 4865434 | Zoom lens capable of selecting a focal length beyond a standard focal length range A zoom lens including, from front to rear, a first lens unit of positive power, a second lens unit of negative power and a third lens unit of positive power, wherein for a standard focal length range at least the first and second lens units move simultane... | 09/12/1989 |
