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Class 396/91 - Lens characteristic compensating


Subclass of Class 396 - Photography
Definition: Subject matter having means to correct the focusing or rangefinding
No. of patents: 84
Last issue date: 03/13/2012


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NumberTitleIssue Date
8135269Image pickup apparatus
An optical device includes a shooting optical system including an AF lens, an AF lens driving apparatus for driving the AF lens, a detection unit for detecting a defocus amount corresponding to a difference between an image pickup position of an object and an imagin...
03/13/2012
7853138Camera and photographic lens and diaphragm for starting a defocus detection without waiting for completion of an aperture opening operation
A camera is provided which is adapted to receive a photographic lens having a diaphragm. The camera includes a detection unit configured to execute electric charge accumulation for detecting a defocus amount when the diaphragm is in a state having a first aperture v...
12/14/2010
7742693Interchangeable lens type digital camera
An interchangeable lens type digital camera includes a camera main body and an interchangeable lens. The camera main body includes a control section which communicates with an interchangeable lens, and controls focus adjustment of the interchangeable lens by a hill-...
06/22/2010
7725017Image pickup apparatus and image pickup system
A camera apparatus and a camera system of the present invention are configured so that a lens unit is attachable/detachable. The lens unit contains at least a lens and an iris, and contains a memory storing setting information required for operating the lens and the...
05/25/2010
7711260Digital camera and camera system
There is disclosed a digital camera which detects a focus of a lens unit by a method selected from a plurality of focus detection methods based on information on the lens unit taken from the lens unit attached to the digital camera. As an example of a focus detectio...
05/04/2010
RE41222Focus control apparatus, image sensor, program and storage medium
A digital camera has distance measurement zone setting means (12) for dividing distance to a subject into a plurality of distance measurement zones; distance measurement zone selection means (13) for selecting a distance measurement zone to be scanned;...
04/13/2010
7646970Image sensing apparatus, control method, and user interface display apparatus
An image sensing apparatus on which a plurality of lens units are interchangeably mountable includes a system controller configured to acquired information specific to a mounted lens unit from the mounted lens unit, a detection unit configured to detect a focus shif...
01/12/2010
7460778Taking lens
A taking lens capable of being used for photographing by light in each of at least two wavelength regions including a first wavelength region and a second wavelength region is provided and include: the flange back adjusting lens; a storing unit that stores a correct...
12/02/2008
7417803Focusing mechanism for a vision detector
A machine vision image acquisition system is provided with a housing or enclosure that protects the acquisition system components from an industrial environment. The machine vision image acquisition system has a focusing mechanism that can be actuated externally to ...
08/26/2008
7412159Image pickup apparatus and defocus amount correction value calculation method
An image pickup apparatus, in which a light is projected toward a physical object by projection means, and based on the reflected light by the physical object of the light, a defocus amount is detected (steps S2003 to S2008) by the first focus detectio...
08/12/2008
7401987Photographing lens having an eccentricity adjusting device
A photographing lens includes an eccentricity adjusting frame which holds an eccentricity adjusting lens group serving as a part of a photographing optical system of the photographing lens; a lens support frame, an axis of which is coincident with a predetermined op...
07/22/2008
7365789Autofocus method and apparatus
An object of this invention is to provide an autofocus method and apparatus capable of always performing proper focusing operation. To achieve this object, a control device drives a focus lens in accordance with the operation of an operation device, and stores the s...
04/29/2008
7274401Digital camera for fast start up
The present invention provides a digital camera in which the start-up time which is from when a power source is turned on until the digital camera is in a state in which photographing is possible is short. A DC motor and a stepping motor are driven simultaneously. A...
09/25/2007
7260322Changeable-lens camera, camera system, and focus detection device
A camera system according to this invention comprises an interchangeable lens unit, an intermediate adapter, and a camera body unit. An AF sensor detects the defocus amount of the interchangeable lens unit. The interchangeable lens unit incorporates a data storage s...
08/21/2007
7207422Elevator call recording device
An elevator call registration system is equipped with a touch panel display, and a processing operation section that registers an operation from the touch panel display into an elevator control unit. The processing operation section detects the position of a user's ...
04/24/2007
7193651Camera system, lens apparatus and camera
A camera system has a camera with a photosensitive member that records optical images; and a lens apparatus removably mounted on the camera and forming an optical image with an image taking optical system including a focus lens. Focus control of the focus lens is ch...
03/20/2007
7116502Optical 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
7079763Focus control apparatus, image sensor, program and storage medium
A digital camera has distance measurement zone setting means (12) for dividing distance to a subject into a plurality of distance measurement zones; distance measurement zone selection means (13) for selecting a distance measurement zone to be scanned;...
07/18/2006
7035021Lens apparatus
A selection device which permits or prohibits serial communication is provided in a lens apparatus capable of performing serial communication to suppress the serial communication although a camera body can perform the serial communication. Thus, a safe operation of ...
04/25/2006
6970646Focus control apparatus, image sensor, program and storage medium
A digital camera has distance measurement zone setting means (12) for dividing distance to a subject into a plurality of distance measurement zones; distance measurement zone selection means (13) for selecting a distance measurement zone to be scanned;...
11/29/2005
6941068Image pickup apparatus and image pickup system
An image pickup apparatus which can perform focusing control with high speed and high precision is disclosed. The image pickup apparatus comprises a focus detection unit that detects a focusing state of the image-taking lens by phase difference detection method usin...
09/06/2005
6856764Camera, lens apparatus, and camera system
A camera which drives a focusing lens to a target position in a short period of time while maintaining required stop accuracy in accordance with the status of an image-taking optical system, is disclosed. The camera comprises the image-taking optical system and a pu...
02/15/2005
6813442Autofocus system and camera system
In a lens-interchangeable digital single-lens reflex camera having a focus detection device, an autofocus device corrects a focus detection result by storing, on the camera side, the detection result obtained by a focus detection means and the deviation of the best ...
11/02/2004
6766111Camera system having a communication system between a camera body and a photographing lens
A camera system having a camera body and a photographing lens, which can be mounted to and dismounted from the camera body, includes a determining device which determines a type of the photographing lens in accordance with data received from the photographing lens; ...
07/20/2004
6574437Focus detection apparatus
A focus detection apparatus includes a pupil dividing device for dividing an exit pupil of an objective lens into separate areas, a field mask located at a position substantially optically equivalent to an image forming position of the objective lens, a c...
06/03/2003
6556785Range finder
In an apparatus comprising a zoom lens and an electric flash, a range finder that determines, on the basis of an output result obtained by means of one method out of an active AF and a passive AF, whether or not to operate the other method, is utilized....
04/29/2003
6453124Digital camera
At power-on, a digital camera starts to operate with a display unit off (state S1). At a subsequent half shutter press of a shutter button, a quick return mirror is flipped down and phase difference AF is performed with live view display off (state S3). A...
09/17/2002
6442345Distance-measuring device and distance-measuring method
The present invention comprises a first distance-measuring mode in which a subject distance is measured on the basis of a subject image signal produced by at least a pair of light-receiving elements receiving the light from subjects, a second distance-mea...
08/27/2002
6268899Identification of lenticular material characteristics in lenticular printers
A lenticular imaging product comprising: a lenticular lens element having an array of lenticules; and means for encoding characteristics of the lenticular lens element for use in processing the lenticular lens element....
07/31/2001
6268967Zoom 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
6249311Lens assembly with incorporated memory module
An infrared video camera system having a plurality of interchangeable imaging lens units and optical filter units. Identifying information, used to modify the operation of the camera system based on the specific imaging lens unit and optical filter unit a...
06/19/2001
6215959Camera having autofocus function independent of photographing optical system
A camera having an autofocus function, independent of a photographing optical system, includes a photographing optical system including synthetic resin lenses and an autofocus optical system, provided independent of the photographing optical system, havin...
04/10/2001
6208811Automatic focussing system
An automatic focussing system including a photographic lens having a memory for storing informations (S0, A) concerning focussing of the photographic lens, a focus detecting unit for detecting a magnitude (d) of focus deviation of the photograp...
03/27/2001
6128443Camera and interchangeable lens
A camera which performs data communication with a mounted interchangeable lens includes a command generating circuit for generating a command which is not directly related to the data communication; and a control circuit for discontinuing the data communi...
10/03/2000
6122447Image blur prevention apparatus
In an image blur prevention device a control device changes the image blur prevention device (fluctuation detection sensor) into a predetermined state (a non-operation state) in accordance with a first operation (e.g., release of depression of a shutter r...
09/19/2000
5973855Zoom 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
5878289Camera having automatic focusing system
A camera having an automatic focusing system includes a focus detector in a camera body to which a photographing lens can be detachably mounted for detecting a focus state for an object image formed by the photographing lens mounted to the camera body. A ...
03/02/1999
5839002Camera having a lens barrel and method
A camera lens barrel, which is connectable to a camera, includes at least one photographic lens, a lens driving control device, a lens driving device, a memory device and a communications device. The photographic lens composes a photographic image at a de...
11/17/1998
5815747Camera having autofocus function independent of photographing optical system
A camera having an autofocus function, independent of a photographing optical system, includes a photographing optical system including synthetic resin lenses and an autofocus optical system, provided independent of the photographing optical system, havin...
09/29/1998
5790902Zoom lens
A device includes a zoom lens having a focusing lens the position of which varies according to a zooming operation, a first moving part arranged to mechanically move the focusing lens according to the zooming operation, and a second moving part arranged t...
08/04/1998
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