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| Number | Title | Issue Date |
| 6308013 | Converter unit of camera A converter unit for a lens unit of a camera, which is able to match optical axes of a plurality of kinds of converter lenses with different magnifications, which are revolvably mounted on a rod, with an optical axis of the lens unit properly. One of the ... | 10/23/2001 |
| 6301060 | Lens barrel A lens barrel includes fixed tubes each arranged to hold an optical unit having an optical axis, a rotating tube arranged to rotate around the optical axis with respect to the fixed tubes, wherein the rotating tube is provided, at front and rear portions ... | 10/09/2001 |
| 6269580 | Motor-driven focusing apparatus of a sighting telescope A motor-driven focusing apparatus of a telescope, includes a telescopic optical system which includes a focusing lens group guided along an optical axis; a motor-driven lens moving device which drives the focusing lens group along the optical axis; a manu... | 08/07/2001 |
| 6236523 | Floating lens barrel, lens barrel, and a common lens barrel system A floating lens barrel includes a stationary barrel which can be connected to a camera body, a rotation ring which is rotatably supported by the stationary barrel and which is rotated in accordance with the focusing operation, a female helicoid ring provi... | 05/22/2001 |
| 6236519 | Viewfinder device A zoom viewfinder device has a viewfinder body. Two movable lenses are accommodated in the viewfinder body. A lens moving mechanism drives the movable lenses in the viewfinder body. A rectilinear guiding mechanism guides movement of each movable lens in a... | 05/22/2001 |
| 6229136 | Rotary lens positioning mechanism with lens position feedback A rotary lens positioning mechanism with lens position feedback, in one embodiment, includes a worm-gear drive motor assembly, a Geneva gear drive assembly, a lens carrier disk, and a lens position feedback means. The worm-gear drive motor assembly includ... | 05/08/2001 |
| 6226124 | Tremble correction device An angular positional data of binoculars in a lateral irection is calculated by integrating output of a gyro sensor. A positional data of correction lenses in the lateral direction is calculated by multiplying a driving step number of a rotor of a steppin... | 05/01/2001 |
| 6206544 | Catadioptric lens system for collecting and directing light from large aperture luminescent light illuminating fixtures A projection illumination fixture includes luminescent light tubes lined with an emulsion coating of titanium dioxide and phosphors for producing an appropriate mixture of highly scattered red, blue and green wavelengths of sustained luminescent light emi... | 03/27/2001 |
| 6204979 | Lens assembly and eccentricity adjustment apparatus thereof A specific lens with a high sensitivity to an eccentricity is selected from a lens optical system and is provided with a tilting mechanism, which enables the tilt angle of the lens to be adjusted from outside a lens barrel. After lenses are fitted into th... | 03/20/2001 |
| 6201650 | Cylindrical mount for adjustable optical components A cylindrical mount for adjustable optical components (2) comprises a sleeve (4) which is fixed relative to the mount and has a slot-like rectilinear guide (5), an inner variator (1) which can be displaced axially, a rotatable cam carrier (6), and at leas... | 03/13/2001 |
| 6198578 | Cam follower and lens barrel In a lens barrel of the present invention, a M-cam frame is engaged with a rotary frame and movable frame so that the M-cam frame can rotate and advance or withdraw freely. A second group-of-lenses frame is engaged with the M-cam frame. A first cam follow... | 03/06/2001 |
| 6195211 | Zoom lens device with zooming position detector A zoom lens device has a zooming position detector consisting of a code plate and a brush device. The code plate is mounted to a front face of a shutter unit that is attached to a front end of an axial movement barrel. The axial movement barrel is located... | 02/27/2001 |
| 6195212 | Variable focal length lens barrel A variable focal length lens barrel is constructed so that a complex lead thread and a cam groove can be provided in overlap on one barrel, and a crest of a helicoid thread meshing with the complex lead thread does not come off a root of the complex lead ... | 02/27/2001 |
| 6163418 | Adjustment structure for fast locating zoom lens A zoom lens comprises a fixed cylinder, an outer movable cylinder, and an inner movable cylinder which is provided in the interior thereof with a shutter and a front group lens. The front group lens is fixed by an outer frame which is fastened with the sh... | 12/19/2000 |
| 6134053 | Method and mechanism for driving optical members in an optical apparatus A method and mechanism are disclosed for driving optical members in an optical apparatus, in which cam means formed on a lens barrel are provided with insensitive zones, so that the lens barrel is rotated to drive a diaphragm for adjustment of its diaphra... | 10/17/2000 |
| 6130788 | Structure for holding lens A structure which holds a lens by fitting a lens holding member holding a lens into an outer cylindrical member. In the structure, a biasing mechanism is provided to bias the lens holding member, located within the outer cylindrical member, forward or bac... | 10/10/2000 |
| 6120865 | Method for producing molding die for synthetic resin lens barrel having a helicoid and for producing the lens barrel An inner barrel includes a male helicoid, and an outer barrel includes a female helicoid which can engage with the male helicoid of the inner barrel. The included angle of trapezoidal threads of the male helicoid are identical to an included angle of trap... | 09/19/2000 |
| 6122112 | Lens position adjusting method for zoom lens A lens position adjusting method for a zoom lens includes at least two movable lens groups, one lens group being primarily utilized for focusing and the other lens group being primarily utilized for magnification, wherein an object at a predetermined dist... | 09/19/2000 |
| 6115190 | Zoom lens barrel A zoom lens barrel includes a fixed tube provided at a camera body, a first rotary tube arranged to move in an optical axis direction relative to the fixed tube and rotate around the optical axis, the first rotary tube having a helical groove formed on an... | 09/05/2000 |
| 6115189 | Multi-stage extension type zoom lens barrel A zoom lens barrel includes a stationary barrel; a first rotational feed barrel which is engaged with the stationary barrel by means of helicoids; a first linear movement barrel which is engaged with the first rotational feed barrel so as to relatively ro... | 09/05/2000 |
| 6108107 | Scanner having a biased lens barrel A scanner scans a object using a one-dimensional image sensor via imaging lens. The imaging lens is supported by a lens barrel, which is moved in the direction of an optical axis of the lens for focusing. In order to ensure that the lens barrel does not i... | 08/22/2000 |
| 6104550 | Control method for zoom lens camera and zoom lens camera A control method for a zoom lens camera which includes a focal length detection mechanism which detects the focal length divided into a finite number of steps; and a focus drive mechanism which drives the focusing lens group to move the same to the finite... | 08/15/2000 |
| 6104549 | Zoom lens device with zooming position detector A zoom lens device has a zooming position detector consisting of a code plate and a brush device. The code plate is mounted to a front face of a shutter unit that is attached to a front end of an axial movement barrel. The axial movement barrel is located... | 08/15/2000 |
| 6097548 | Device for detecting zoom lens positions and apparatus employing the device A detecting mechanism for detecting a position of a zoom lens used in a camera, in which the same signal is output at each of a plurality of locations through which the lens passes, and in which it is possible to execute a resetting operation of the lens ... | 08/01/2000 |
| 6091552 | Zoom lens mechanism and its assembling method A zoom lens apparatus in which its dimension in a radial direction of a lens can be reduced. A plurality of flat movable plates which support lens groups at one ends thereof are slidably stacked one over the other on a fixing plate and which are guided st... | 07/18/2000 |
| 6081391 | Lens barrel A lens barrel includes a fixed frame, a plurality of lens groups disposed inside the fixed frame movably along an optical axis relative to the fixed frame, at least three lens holding frames holding at least one lens group, a cam frame having bottomed can... | 06/27/2000 |
| 6078436 | Mechanism correcting a trembling of focused image A pair of correction lenses is unitarily held by a holding plate in binoculars. The direction and the amount of the movement of the focused image occurring due to hand tremble while utilizing hand-held binoculars, are detected. The holding plate is driven... | 06/20/2000 |
| 6072640 | Waterproof lens barrel A waterproof lens barrel which includes at least one water-tight movable barrel which is movable along an optical axis, the water-tight movable barrel includes: an outer barrel that is in sliding contact with an annular sealing member; an inner barrel tha... | 06/06/2000 |
| 6072639 | Zoom lens barrel assembly including a clutch mechanism for a camera A zoom lens assembly for a zoom lens having at least two lens groups comprises at least one rotatable lens barrel equipped with a first guide cam for shifting one of the two lens group relative to the lens barrel along the optical axis, a rotatable ring m... | 06/06/2000 |
| 6069747 | Cam mechanism A cam mechanism according to the present invention is constructed in such a way that a face cam is secured to a rotary shaft which is rotated by a motor, and a pressing cam, which is movable along the rotary shaft, presses a cam follower pin toward a cam ... | 05/30/2000 |
| 6069745 | Lens barrell A lens barrel has a plurality of moving frames that move along the optical axis of lenses. The lens barrel comprises a first moving frame, a second moving frame, and an interlocking unit. The first moving frame moves along the optical axis. The second mov... | 05/30/2000 |
| 6064532 | Apparatus for correcting trembling of a focused image Binoculars are provided with correction lenses which correct a trembling of a focused image. The correction lenses are driven by stepping motors. The difference between an angular position data of optical axes of the binoculars and a driving amount of the... | 05/16/2000 |
| 6057969 | Lens barrel A lens barrel comprises a first lens group and a second lens group. One of the first lens group and the second lens group is mounted on a lens barrel body with an adjusting mechanism for lens axis deviation intervening therebetween. The other set of lens ... | 05/02/2000 |
| 6028718 | Zoom lens barrel A zoom lens barrel in which a zoom lens is switched to a plurality of focal lengths by a moving member by which a plurality of lens groups are moved in the direction of optical axis. After a desired focal length has been selected, a focusing operation is ... | 02/22/2000 |
| 6025964 | Optical apparatus An optical apparatus includes an optical unit having an optical axis, a manual operation member arranged to be manually operated to drive the optical unit, a driving motor for electrically driving the optical unit, and a driven member arranged to be drive... | 02/15/2000 |
| 6023376 | Lens barrel having a linear guide mechanism A lens barrel is disclosed that includes: a linear moving barrel which moves along an optical axis; a unit secured to the linear moving barrel; a linear guide member which moves along the optical axis relative to the unit without rotating about the optica... | 02/08/2000 |
| 6008954 | Lens barrel with optical system for preventing image shake A mechanism, for optically adjusting a deviation of image forming position, which is installed in a lens barrel, for example, of a camera. The mechanism includes a first image shake preventing afocal lens and a second image shake preventing afocal lens wh... | 12/28/1999 |
| 5991096 | Zoom lens A zoom lens comprises a plurality of lens elements arranged in at least two zooming lens units. The zoom lens is characterized in that at least one of the zooming lens units moves in a first direction, then reverses the direction of the movement to move i... | 11/23/1999 |
| 5982566 | Zoom lens barrel A lens barrel for a zoom lens includes first and second lens groups arranged in the direction of an optical axis. A first rotary barrel is rotatable about the optical axis and is rotated to move the first lens group in the direction of the optical axis, a... | 11/09/1999 |
| 5973855 | Zoom lens adjustment method A zoom lens adjustment method capable of being applied to zoom lenses for use in video cameras, electronic still cameras, or the like employing solid-state image sensors. An amount of integral movement δ1 by which a first lens group (G1) and a second len... | 10/26/1999 |
