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| Number | Title | Issue Date |
| 6268967 | Zoom lens apparatus The present invention relates to a zoom lens apparatus used with a television camera and provides an apparatus constructed in such structure that, on the occasion of limiting an angle of view, a zoom state set and manipulated by a photographer is converte... | 07/31/2001 |
| 6208472 | Lens drive control device and image pickup apparatus having the same A lens drive control device includes a zoom lens, a drive mechanism for driving at least one lens unit which constitutes the zoom lens, a control circuit for controlling the drive mechanism, and a switch for switching between a shooting state and a non-sh... | 03/27/2001 |
| 6178051 | Lens control apparatus A lens control apparatus includes a lens, a counter which indicates a driving position of the lens, and a control part which initializes a count value of the counter every time the lens passes a predetermined reference position during an image pickup oper... | 01/23/2001 |
| 6163412 | Zoom lens barrel assembly for a camera including a rotating barrel capable of selecting one of several zoom positions as well as focusing A zoom lens barrel assembly for zooming and focusing of the zoom lens by shifting lenses of a zoom lens along the optical axis which includes a motor driven operating barrel operative to make zooming and focusing of said zoom lens, a first cam barrel with... | 12/19/2000 |
| 6160670 | Camera 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 ... | 12/12/2000 |
| 6151171 | Zoom assembly having zoom lens with plurality of lens group that move together or differentially for zooming and focusing It is an object of the present invention to provide a very compact zoom assembly with a minimum number of parts. Another object of this invention is to provide a zoom assembly which does not require guide rods and utilizes with only one motor for both zoo... | 11/21/2000 |
| 6141158 | Photo-taking lens and optical apparatus A zoom lens in which a lens group is driven in response to an operation member provided on a body to which the zoom lens is attached, includes a rotary manual ring disposed on a lens barrel, and a driving part arranged to drive the lens group in accordanc... | 10/31/2000 |
| 6134057 | Drive and guide mechanism and apparatus using the mechanism A lens driving device which does not make larger an apparatus in which the device is installed, which ensures a longer span for preventing a tilt of a lens therein, and which allows an easy access to the lens after assemblage is disclosed. The lens drivin... | 10/17/2000 |
| 6128141 | Lens barrel and optical apparatus having the same A lens barrel includes a moving tube arranged to move in an optical axis direction, the moving tube having at least three cams arranged along a circumferential direction thereof, in which an interval between one pair of cams in the circumferential directi... | 10/03/2000 |
| 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 |
| 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 |
| 6085044 | Driving control device, optical apparatus and driving control method A driving control device includes a driving direction storing part for storing a driving direction of a driven body, a position detecting circuit for detecting a position of the driven body, and an amount-of-driving varying part for, when a direction of t... | 07/04/2000 |
| 6075655 | Optical mechanism which allows play between transmission members for moving optical components A lens barrel has a focusing operation and a zooming operation which are carried out with only one driving source which is installed outside the lens barrel so as to realize a most suitable resolution for each of the operations. A rotary cylinder which su... | 06/13/2000 |
| 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 |
| 6038404 | Lens barrel for a camera having a non-rotatable cam ring moved by a feed screw A varifocal mechanical correction mechanism for a lens barrel for a camera, wherein the mechanism drives a lens with a pair of cam rings for carrying out zooming and focusing functions. One of the cam rings is caused to linearly move in and out along an o... | 03/14/2000 |
| 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 |
| 6002532 | Lens barrel There is disclosed a lens barrel which comprises a supporting frame for supporting lens groups, a cam barrel to be rotated around the optical axis to move the supporting frame in the direction of the optical axis in a predetermined range, a manual focusin... | 12/14/1999 |
| 5986826 | Drive device using electromechanical conversion element A drive device for driving an optical element suitable to be attached to a camera shake correction device. The drive device employs items molded from a synthetic resin in which the elastic deformation of the synthetic resin allows the oscillation of a pie... | 11/16/1999 |
| 5966248 | Lens driving mechanism having an actuator A lens driving mechanism for moving a lens in its optical axis direction has a lens frame for holding the lens, guide means for guiding the lens frame to be movable in the optical axis direction of the lens, and an actuator having an actuation portion tha... | 10/12/1999 |
| 5959786 | Optical apparatus with power transmission mechanism An optical apparatus includes an optical unit, a manual operation ring for manually driving the optical unit, a driving motor for electrically driving the manual operation ring, a transmission driving force limiting member for liniting a transmission driv... | 09/28/1999 |
| 5956187 | Lens and optical device provided with the lens Part of a shutter drive mechanism 28 which drives a shutter blade 27 extends forward in the optical axis direction from a third lens unit 33 provided with the shutter blade 17. A space 36 is provided around an adjacent second lens unit 32 to accommodate t... | 09/21/1999 |
| 5930053 | Drive apparatus for zoom lens barrel A drive apparatus for a zoom lens barrel having a plurality of movable lens groups, comprising: a lens barrel body which supports lens frames of the movable lens groups to move linearly in the optical axis direction, a lens drive unit which is assembled i... | 07/27/1999 |
| 5926323 | Lens barrel with interlocking key In a lens barrel which drives a focusing optical system using only one set of a cam groove and a cam pin engaged with the cam groove, the cam groove and the cam pin jointly defining a zooming operation and a focusing operation of the focusing optical syst... | 07/20/1999 |
| 5926324 | Motor driven diaphragm apparatus for lens barrel A motor-driven diaphragm apparatus for a lens barrel having a plurality of lens groups and a diaphragm mechanism, in which a diaphragm block provided with a plurality of diaphragm blades and a diaphragm-opening-and-closing ring which opens and closes an a... | 07/20/1999 |
| 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 |
| 5909320 | Drive apparatus for zoom lens barrel A drive apparatus for a zoom lens barrel having at least two movable lens groups, one of which is used also as a focusing lens group comprising: a pair of lens frames which respectively hold the two movable lens groups, a pair of driven pins which are int... | 06/01/1999 |
| 5905598 | Zoom lens apparatus A zoom lens apparatus which is superior in sound insulating and dust-proof properties and is easy to handle in transportation, storage and so forth. A lens system including a zoom lens set, a focusing lens set and an iris disposed on a single optic axis, ... | 05/18/1999 |
| 5900995 | Driving device and optical apparatus A lens driving device includes a stator, a rotor magnetized to have a plurality of poles, an arm fixed to the rotor in such a manner as to be rotatable together with the rotor, a moving member for rectilinearly moving a lens in response to a rotation of t... | 05/04/1999 |
| 5898526 | Lens barrel comprising an ultrasonic motor A lens barrel comprises a focusing optical system for moving in the direction of the optical axis to perform a focusing operation, an ultrasonic motor used for the automatic focus control, containing a stator and a rotor, and disposed around the optical a... | 04/27/1999 |
| 5898528 | Lens barrel with built-in ultrasonic motor Lens barrel with built-in ultrasonic motor, comprises photographing optical system having lens movable in the direction of the optical axis, fixed barrel supporting the optical system, manual operation member held on the fixed barrel and rotatable by exte... | 04/27/1999 |
| 5886830 | Drive apparatus for zoom lens barrel A drive apparatus for a zoom lens barrel having at least two movable lens groups, one of which is used also as a focusing lens group, comprising a pair of lens frames which respectively hold the two movable lens groups, a pair of driven pins which are int... | 03/23/1999 |
| 5825535 | Pancratic magnification system A pancratic magnification system for at least two observation beam paths within a stereo microscope consists of a first and a second optical component that are displaceable in a defined manner along a common optical axis, following which a third, stationa... | 10/20/1998 |
| 5825560 | Optical apparatus There is provided an optical apparatus which has excellent assembly performance, can suppress an increase in cost, and attain a decrease in thickness. The optical apparatus includes a board (1) having a photographing optical system and a mechanical system... | 10/20/1998 |
| 5822133 | Optical structure and device manufacturing method using the same An optical component moving device having a driving portion and guiding portion, for moving an optical component, wherein the driving portion includes fluid enclosure system being expandable and contractible and the guiding portion includes a leaf spring.... | 10/13/1998 |
| 5815325 | Optical assembly with drive linkage for a movable lens element A lens assembly comprises a lens barrel assembly for supporting a lens barrel, one or more guide members for guiding the movement of the lens barrel assembly in the direction of an optical axis, a gear shaft rotatable by a primary mover, and a drive linka... | 09/29/1998 |
| 5812887 | Lens supporting structure A lens supporting structure for supporting a lens group in a lens barrel is disclosed. The lens supporting structure includes: a lens frame which supports the lens group therein; an outer flange formed on an outer periphery of the lens frame; an annular e... | 09/22/1998 |
| 5764422 | Lens drive device for zoom optical system A lens drive device for a zoom optical system drives first and second lenses along an optical axis with a single drive source. A transmission mechanism connects the drive source and the first and second lenses. The transmission mechanism transmits drive t... | 06/09/1998 |
| 5765048 | Telescoping type of zoom lens and cam mechanism therefor A lens barrel has first, second and third barrels concentrically arranged in this order from an optical axis. The lens barrel includes at least one cam slot formed on the second barrel and extending oblique to a direction of the optical axis, at least one... | 06/09/1998 |
| 5751502 | Lens barrel with built-in ultrasonic motor An ultrasonic motor built-in lens barrel includes a focusing optical system, a fixed barrel, and an ultrasonic motor having a stator so fitted to the fixed barrel as to be rotatable about an optical axis and capable of generating ultrasonic vibrations the... | 05/12/1998 |
| 5748997 | Control method of a zoom lens camera A control method of a zoom lens camera comprising a lens system having a movable front lens group and a movable rear lens group, a first motor for moving the front lens group, a second motor for moving the rear lens group, a first pulse encoder which is a... | 05/05/1998 |
