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| Number | Title | Issue Date |
| 7697833 | Two-step auto focus camera and method for driving the same A two-step auto focus camera with two focal points includes a lens unit (20) and a permanent magnet (30) being fixedly mounted around the lens unit to move with the lens unit. Upper and lower coil seats (60a, 60b) are mounte... | 04/13/2010 |
| 7362369 | Image-taking control apparatus for controlling a plurality of drivable parts of said apparatus such that each drivable part finishes its operation at substantially the same time An image-taking control apparatus lets the operations of a plurality of drivable parts, including a first drivable part whose driving speed can be switched only in steps, finish substantially simultaneously. A speed selector selects an operation speed for each of th... | 04/22/2008 |
| 7319646 | Focus operation for an optical disk device A disk device in which at the recovery job of a focus pull-in operation, a CPU supplies servo control means with the respective correction values of the rotational speed of an optical disk and the moving speed of a lens which are described in the data table of a RAM... | 01/15/2008 |
| 6535691 | Lens drive and lens shutter unit A lens drive includes a stepper motor that can be rotated forward and reversely; a motor control for controlling the driving of the stepper motor, a photographing lens for forming a subject image on a predetermined image surface, a lens driver for driving... | 03/18/2003 |
| 6118945 | Lens control apparatus A lens control apparatus drives a lens with a sine wave by means of a pulse motor and detects the position of the lens by counting the number of pulses during the driving of the pulse motor, and stores a stop phase which is reached by a rotor when the pul... | 09/12/2000 |
| 6075945 | Lens apparatus The present invention relates to a lens apparatus employed in a video camera. The present invention provides a lens apparatus, suited to manipulation of an operator, using a vibratory wave motor as a driving source for driving a photographing lens of the ... | 06/13/2000 |
| 5956528 | Lens control apparatus A lens control apparatus which corrects a variation in a focus position due to a zooming operation by driving a compensator lens at a standard speed according to a predetermined cam locus is arranged to determine a correction direction on the basis of an ... | 09/21/1999 |
| 5887201 | Camera driving stop apparatus In a camera driving stop apparatus, a motor serves as a driving source upon reception of a current. A driven unit performs a predetermined operation associated with driving of a camera by using the motor as the driving source. A pulse generator outputs a ... | 03/23/1999 |
| 5799214 | Autofocusing device An automatic focusing device according to the present invention includes a lens drive section that drives and automatically focuses a photographing lens, a defocus amount detecting section that detects a defocus amount of the photographing lens, a locus s... | 08/25/1998 |
| 5652928 | Method and apparatus for automatic deployment of camera lens Camera autofocus apparatus and method employing an autoranging device to determine a lens destination focus position in terms of a target number of signal pulses from a lens motion sensor photo-interrupter. A lens drive motor is initially driven at maximu... | 07/29/1997 |
| 5543878 | Film feed device with film velocity detector and deceleration and braking control A film feed device comprises motor for feeding a film, a power supply battery for supplying a voltage to the motor, a velocity detection unit for detecting a film feed velocity, a deceleration unit for duty-driving the motor, a reverse drive brake unit fo... | 08/06/1996 |
| 5498944 | Automatic focusing apparatus An automatic focusing apparatus having an object distance data detecting mechanism having an optical system which includes a focusing lens assembly which can be driven by a motor, and a mechanism for detecting an angular velocity of the motor. The optical... | 03/12/1996 |
| 4897683 | Focusing lens drive method A method for use in an automatic focusing camera for driving a focusing lens to a focused position in which the speed is changed in decreasing incremental steps as the lens approaches the focused position and the speed is made independent of changes in am... | 01/30/1990 |
| 4772909 | Lens drive control apparatus for automatic focusing In an automatic focusing apparatus, wherein first zone representing an in-focus condition and a second zone for sufficiently assuring detection precision of the automatic focusing apparatus are provided for the position of a focusing lens, the focusing le... | 09/20/1988 |
| 4613224 | Motor driver for auto-focus camera A motor driver circuit for auto-focus camera comprising a voltage supply circuit, a duty ratio changing circuit for changing the duty ratio of pulse signal according to the voltage level of said voltage supply circuit and a control circuit for controlling... | 09/23/1986 |
| 4568165 | Focus adjusting device for camera A focusing adjusting device for a camera which uses the rotation of a motor shaft to move a photographing lens into focus includes an operating member which is movable to a number of positions. Each position of the operating member specifies a particular ... | 02/04/1986 |
| 4303321 | Photographic camera of automatic focussing type A photographic camera of automatic focussing type capable of focussing objects between a minimum and infinite distance. A focussing motor is coupled to a movable objective lens for moving the lens for focussing an image of an object to be photographed. A ... | 12/01/1981 |
