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| Number | Title | Issue Date |
| 7664385 | Image capture device and associated method of compensating backlash An image capture device includes a focusing unit, a focus driving unit and an autofocus control unit; the focusing unit is provided to focus on a subject. The focus driving unit is provided for driving the focusing unit to driving-target position. The autofocus cont... | 02/16/2010 |
| 7310476 | Imaging apparatus An imaging apparatus is provided which performs optimum zooming and focusing even after long use. The imaging apparatus includes: a lens which is movable along the optical axis; a driving module to drive the lens; a driving amount calculation module to determine a d... | 12/18/2007 |
| 7218462 | Holding mechanism, optical apparatus and device manufacturing method A holding mechanism for holding an optical element includes a rear side block that includes a rear side holding engagement part that is engageable with a rear side engagement part provided on a rear side of an optical element, a front side block that is coupled with... | 05/15/2007 |
| 7116502 | Optical apparatus An optical apparatus is disclosed which can control a position of a driven member with precision using a simple control algorithm. The optical apparatus includes an actuator, a driven member, a transmission mechanism for transmitting a driving force from the actuato... | 10/03/2006 |
| 6353709 | Camera capable of detecting an abnormality A camera capable of detecting an abnormality has photographing operation programs, an abnormality detection program, and a checking operation program installed therein. The photographing operation programs cause a plurality of mechanisms included in the c... | 03/05/2002 |
| 6282379 | Autofocus apparatus of a camera An autofocus apparatus of a camera includes a lens, a range-finding device for detecting a direction and an amount of defocus, a driving circuit for driving the lens, a memory for storing the latest driving direction of the lens, and a control circuit for... | 08/28/2001 |
| 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 |
| 6072955 | Abnormality detecting means for detecting whether abnormal condition has occurred or not when failure factor is applied A failure detection and storage device provided with a failure factor detection unit for detecting generation of a failure factor when the failure factor being capable of causing a failure of a camera is generated, a date-and-time information output unit ... | 06/06/2000 |
| 5892998 | Camera A camera includes a movable lens barrel arranged to be moved by a driving force of a drive source, a barrier arranged to be shiftable between a closed state and an open state on a locus of movement of the movable lens barrel, a control part arranged to ca... | 04/06/1999 |
| 5781809 | Image magnification control device for a camera An image magnification control device for a camera. Control focal length required to maintain an image magnification constant is computed based upon defocus information detected by analyzing a light that passes through a photographic lens. In case a focal... | 07/14/1998 |
| 5758205 | Lens barrel A lens barrel constructed of a cam slot, a lens cylinder, a memory means, a detecting means, a motor driving means and a control means. The cam slot has a discontinuous area formed in a portion corresponding to a parting line of a molding die used for mol... | 05/26/1998 |
| 5721976 | Image magnification control device for a camera A lens focusing system for a camera. The camera includes a focusing lens that is movable between a first terminus point and a second terminus point. An amount required to move the focusing lens to obtain an in-focus condition is determined, which is used ... | 02/24/1998 |
| 5666565 | Focal length varying device which avoids errors due to mold parting lines A device for varying the focal length of a phototaking optical system comprises a cam member having a cam portion, a guide member having a guide portion, a driven member provided in a part of the phototaking optical system and maintained in contact with t... | 09/09/1997 |
| 5640225 | Backlash compensation for automatic focusing apparatus A focus detecting apparatus including an optical system having a group of focusing lenses, an object distance measuring device which measures the amount of defocus for a specific object imaged by the focusing optical system, a focus judging device which j... | 06/17/1997 |
| 5583595 | Lens barrel A lens barrel constructed of a cam slot, a lens cylinder, a memory, a detector, a motor drive and a controller. The cam slot has a discontinuous area formed in a portion corresponding to a parting line of a molding die used for molding. The lens cylinder ... | 12/10/1996 |
| 5543971 | Backlash removing device for stowed lens barrel A backlash removing device for a lens barrel, including a plurality of lens groups movable in an optical axis direction and cylindrical members movable in the optical axis direction by a motor for moving the plurality of lens groups. A motion converting m... | 08/06/1996 |
| 5493163 | Lens driving device employing vibration motor with backlash compensation A driving device drives a movable member, such as a lens barrel, using a vibration motor through a gear train. The scanning speed of the driving frequency of a periodic signal applied to the motor when the motor is activated is varied according to a backl... | 02/20/1996 |
| 5463442 | Interchangeable lens unit for use in camera system An interchangeable lens unit for use in a camera system which is arranged to drive a motor in the interchangeable lens on the basis of a signal supplied from a camera body. The interchangeable lens unit is provided with a circuit for continuously transmit... | 10/31/1995 |
| 5187513 | Focusing apparatus A focusing apparatus in which a photographing lens can be speedily moved to a desired focus position comprises a rotary barrel for causing the focusing optical system to move in the direction of the optical axis, a moving amount detecting device provided ... | 02/16/1993 |
| 5077571 | Electric focusing apparatus An electric focusing apparatus comprises a focusing optical system, a focus adjusting motor, transmitting means for transmitting the drive force of the focus adjusting motor to the focusing optical system, drive amount detecting means for detecting the dr... | 12/31/1991 |
| 5008605 | Electric driving device capable of eliminating backlash A mechanism such as a camera has an electric driving device being capable of eliminating backlash, is equipped with an electric driving unit, an actuation unit driven by the driving force of the electric driving unit, a gear train for transmitting the dri... | 04/16/1991 |
| 4922279 | Automatic focus adjusting apparatus An automatic focus adjusting apparatus for adjusting automatically a focus condition of an objective lens includes a CCD array for receiving light from an object and producing a accumulated charge signal representing the accumulated charge. Using the accu... | 05/01/1990 |
| 4857947 | Position controlling device in a lens driving apparatus for camera A camera is capable of displacing a phototaking optical system in the direction of the optical axis by a drive source such as motor and setting the optical system to a plurality of positions. The camera includes a photo-taking optical system, photographin... | 08/15/1989 |
| 4733262 | Camera system capable of automatic focus control A camera system with an auto-focusing system includes a camera body and an interchangeable zoom lens. The interchangeable objective lens stores various data to be sent to the camera body for improving automatic focus adjustment, such as an information nec... | 03/22/1988 |
| 4623238 | Camera system capable of automatic focus control A camera system with an auto-focusing system includes a camera body and an interchangeable zoom lens. The interchangeable objective lens stores various data to be sent to the camera body for improving automatic focus adjustment, such as an information nec... | 11/18/1986 |
| 4537487 | Automatic focus control system with backlash correcting arrangement An automatic focus control system provided with a backlash correcting arrangement, which is free from influences arising from a backlash or play in a transmission system, and capable of quickly effecting the automatic focus control at a high accuracy.... | 08/27/1985 |
| 4477167 | Protective device for automatic focusing camera An automatic focusing camera which can drive an objective lens to a focus position includes a sensor arrangement that is capable of determining when the focusing lens is physically held or is being driven beyond its operative range. The direction of movem... | 10/16/1984 |
| 4322151 | Backlash-free cam control The invention contemplates a backlash-free cam and follower mechanism characterized by application of constant backlash-relieving resilient loading regardless of change in cam slope and regardless of displaced position of cam-driven structure with respect... | 03/30/1982 |
| 4200378 | Automatic focusing camera with lens jam sensor control An automatic focusing camera which upon initiation of a camera cycle drives the lens to a focus position, and responsive thereto, provides an exposure operation, and termination of the camera cycle includes a jam sensor arrangement operable, responsive to... | 04/29/1980 |
