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Class 396/135 - Speed control


Subclass of Class 396 - Photography
Definition: Subject matter having means to control the rate of motion
No. of patents: 83
Last issue date: 05/29/2012


1      
NumberTitleIssue Date
8190015Method and device for damping lens vibration
In a method for reducing lens vibration in an image capture device, a lens movement requirement is broken up into N smaller lens move steps, and the lens is moved a first of the N smaller steps. A wait time is inserted after completing the first of the N smaller ste...
05/29/2012
8131143Focus control circuit for adjusting the focus by moving a lens
A focus control circuit is installed in an image pickup apparatus including a lens, a driver element for adjusting the position of the lens, and a position detecting element for detecting the position of the lens. An equalizer included in the focus control circuit g...
03/06/2012
7747159Focusing device and image-capturing device provided with the same
A focusing device capable of setting (S402) a focusing area according to a detection result of a target subject, wherein even if the target subject is no longer detected, when the target subject is assumed to be present, the velocity of the movement of the fo...
06/29/2010
7630623Optical apparatus, imaging apparatus, and control method
An optical apparatus includes a control unit configured to perform an operation for moving a focusing lens at a first speed to detect a first position corresponding to an in-focus state and then moving the focusing lens at a second speed lower than the first speed i...
12/08/2009
7253575Industrial optical shutter
A highly versatile optical shutter for industrial and scientific applications is disclosed. The has a aperture which defines a light path through the shutter, and a shutter vane or blade that is moved into and out of the light path using a precision, microprocessor ...
08/07/2007
7224397AF control apparatus and AF control method
A CPU performs a control for photographing a main subject in absence of auxiliary light, whereby an image signal is outputted from an analogue signal processing section. Next, the CPU performs a control for photographing the main subject in presence of the auxiliary...
05/29/2007
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
7139612Multi-phasic microphotodiode retinal implant and adaptive imaging retinal stimulation system
An artificial retina device and a retinal stimulation system and method for stimulating and modulating its function is disclosed. The artificial retina device includes multi-phasic microphotodiode subunits. In persons suffering from blindness due to outer retinal la...
11/21/2006
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
7110037Automatic focus control based on voltage, temperature, and power supply
A digital camera is provided with, a voltage detection unit for a driving power supply, a temperature detection unit which detects an inner temperature and an outer temperature of the apparatus, a power supply detection unit which detects whether the power supply is...
09/19/2006
7019914Lens barrel and image taking apparatus
A lens barrel has its length which is reduced by dispensing with guide rods or a travel mechanism long extending from a base which fixes an image pickup device. The optical axes of multiple lens groups can be easily aligned. An image taking apparatus has its body wh...
03/28/2006
7003222Camera, lens apparatus, and camera system
A camera which maintains accuracy of stop position in accordance with the state of an image-taking optical system and allows driving of a focus lens to a target position in a short time period, is disclosed. The camera comprises a motor which drives the focusing len...
02/21/2006
6999684Camera system and camera
A camera system which is capable of performing highly accurate focusing in a short time by using two kinds of AF methods, is disclosed. The camera system calculates the target driving amount of the focusing lens based on the result of detection by a first focus dete...
02/14/2006
6954233Electronic image pick-up apparatus and method of adjusting the focal position thereof
An electronic image pick-up apparatus acquires auto-focus data from each of an AF sensor module and an image sensor disposed in conjugate positions in a test mode, stores data on any relative deviation between those items of auto-focus data and drives a photographic...
10/11/2005
6937285Image pickup apparatus and power supply control method therefor
In order to be able to reduce power consumption while making possible manual operation in any scene when the photographic situation demands its use, an image pickup apparatus has a ring member arranged concentrically with the optical axis of lenses, a detecting devi...
08/30/2005
6922032Electric motor control device
In the driving operation of a sensorless three-phase motor to be used in a rotation at a comparatively low speed (approximately 2000 RPM or less) and to be bipolar driven, the number of rotations and a rotating position are accurately detected from an induced voltag...
07/26/2005
6892028Camera system, camera and lens apparatus
A camera system which controls the driving of a focus lens through overlap control with a high degree of accuracy, is disclosed. The camera system comprises a lens apparatus with an image-taking optical system and a camera on which the lens apparatus is mountable. T...
05/10/2005
6862409Camera, lens apparatus, and camera system
A camera which maintains accuracy of stop position in accordance with the state of an image-taking optical system and allows driving of a focus lens to a target position in a short time period, is disclosed. The camera comprises a motor which drives the focusing len...
03/01/2005
6847785Camera system, camera and lens apparatus
A camera system which controls the driving of a focus lens through overlap control with a high degree of accuracy, is disclosed. The camera system comprises a lens apparatus with an image-taking optical system and a camera on which the lens apparatus is mountable. T...
01/25/2005
6831793Optical apparatus and image-pickup apparatus
An optical apparatus capable of reducing processing burden on the controller and achieving high-speed driving and improvement of the resolution of stop positions of an optical element. The optical apparatus includes a drive unit that drives the optical element, an o...
12/14/2004
6822686Lens control apparatus
A lens control apparatus for controlling the position of a focusing lens includes a rotary operation member, a detector, having a rotary encoder coupled with the rotary operation member, which detects the amount of rotation per unit time of the rotary operation memb...
11/23/2004
6798989Motor control apparatus, lens apparatus, camera system and camera
A motor control apparatus capable of accelerating the motor speed to a target speed and stabilizing the motor speed in a short time is disclosed. The motor control apparatus includes a speed detection unit which outputs a signal according to the speed of the motor (...
09/28/2004
6704503Optical device, optical device driving unit, information write device, preset information setting system, and camera system
Disclosed is an optical device including an optical member, a driving member for driving the optical member, a storage member for storing preset information about driving of the optical member, an information write device for writing the preset informatio...
03/09/2004
6546202Lens driving apparatus
The present invention provides a lens driving apparatus which can accurately detect the position of a movable lens group while preventing the apparatus from increasing in size and cost by using a simple position detecting sensor. A first lens group, a sec...
04/08/2003
6301441Lens driving device
A lens driving device for driving a focusing lens of a photographing lens for a camera is provided with a focusing ring that is rotated to move the focusing lens, an AF motor and an MF (manual focusing) ring. Each of the AF motor and the MF ring is connec...
10/09/2001
6085044Driving 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
6075945Lens 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
6051949Apparatus for driving stepping motor of camera
A stepping motor driving apparatus for a camera includes 1-2 phase excitation type stepping motors and a drive controller for driving and stopping the stepping motors so that the driven stepping motors are stopped always at a detent position....
04/18/2000
6040677Apparatus for driving stepper motor of camera
A stepping motor driving apparatus for a camera having a 1-2 phase excitation type stepping motor which is driven by a 1-2 phase excitation in response to a drive signal includes a drive control device for stopping the stepping motor at a 1-phase excitati...
03/21/2000
5933661Optical apparatus having the image blur correcting function
An optical apparatus having the image blur correcting function has control means for effecting first drive control for moving optical means to correct image vibration and second drive control for moving the optical means for focus adjustment, and varying ...
08/03/1999
5887201Camera 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
5842059Automatic focus adjusting device
An automatic focus adjusting device for automatically adjusting focus by using a predetermined signal component of a picked-up image signal outputted from an image sensor is arranged to find the state of an object from information on the distribution of f...
11/24/1998
5832318Movable optical member control device in optical apparatus having a control means and a conversion means
A driving device includes a movable object, a driving part for moving the object, a manual operation member, a pulse generator for generating a plurality of pulses successively according to an operation of the operation member with pulse intervals varying...
11/03/1998
5799214Autofocusing 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
5765051Focus detection device and method
A focus detection device and method permits the shooting lens to follow the movement of the photographic object without a focussing delay due to the calculation time and the movement of the object. The system includes a camera, a shooting lens, a focus de...
06/09/1998
5754895Photographic camera using frequency divided pulses for rapid adjustment of movable features
A photographic camera has a movable part to be driven by an electric motor. A rotary encoder generates a pulse for every predetermined angle rotation of the motor and the motor is feedback-controlled on the basis of a pulse signal consisting of a pluralit...
05/19/1998
5745804Automatic focus device
An automatic focus device capable of optimum focus lens driving control corresponding to the magnitude of the positional error of the focus lens. The automatic focus device specifies the target position of the focus lens based on information relating to t...
04/28/1998
5664238Focal controller of camera
In a focal controller of a camera, two brightness components in different frequency bands are obtained by two band pass filters from a video signal obtained by image pickup. Integral values a and b of the respective brightness components are detected by i...
09/02/1997
5640225Backlash 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
5614972Camera with movable lens and method of operation
A camera is equipped with a photographic lens and a drive for moving the lens relative to the camera body. If an external or other force prevents the lens from moving to a prescribed position within a set time interval, for example, the drive changes the ...
03/25/1997
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