119 results about "Lens Controller" patented technology

A camera system includes an interchangeable lens and a camera body. A body controller in the camera body performs control to transmit a timing signal and a drive information signal to the interchangeable lens. A lens controller in the interchangeable lens controls drive of a focus lens based on the drive information signal and the timing signal which are received from the camera body. The drive information signal includes information of a driving time which is a period from a start of driving the focus lens until an end of driving the focus lens.

An image pickup system includes a lens apparatus, and an image pickup apparatus to which the lens apparatus is detachably attached. The image pickup apparatus controller changes a cycle of a control reference signal for internal processing of the image pickup apparatus, and sends a command of changing the cycle of the control reference signal to the lens controller in synchronization with a post-change control reference signal. The lens controller that has received the command changes the cycle of the control reference signal when the lens apparatus is ready to change the cycle of the control reference signal, and sends to the image pickup apparatus controller information representing whether the lens controller has been able to follow the change of the cycle of the control reference signal.

An electronic microscope includes a handle having an outer body enclosing a main body and an image sensor, a lens controller fixed to the front end of the outer body of the handle, and a light guide coupled to the front end of the lens controller. The lens controller includes an inner case having a guide slot in the circumference and a flange on one end to which the handle is coupled, an outer case rotatably coupled with the inner case from outside and having a spiral passage in the circumference communicating with the guide slot, and a lens unit inserted into the inner case. The lens unit moves back and forth in response to rotation of the outer case. The light guide includes a LED board, LEDs radially mounted on the LED board, and an observation filter detachably provided on the front end of the lens controller.

Provided is an interchangeable lens digital camera that is capable of correcting a rolling shutter distortion in a live view image without delay in displaying the image. At the start of live view imaging, a lens controller in an interchangeable lens controls a shake detection sensor to detect the direction and amount of a shake, and produces deviation information on the basis of shake detection signals from the shake detection sensor, the deviation information indicating fluctuation in direction and amount of the shake for one frame of the live view image in the form of a parameter. The deviation information is transmitted to a body controller of a camera body through a serial communication unit, to correct the rolling shutter distortion on the basis of the deviation information.

A printer includes an image area sensor for picking up a picture frame in photo film to output image data. A printing projecting lens focuses and records a print frame to color photographic paper. Three LED light sources generate light. A digital micromirror device (DMD) is disposed in a traveling path of the light, includes plural micromirrors arranged in at least one array. The plural micromirrors are individually shiftable between first and second positions different in a direction, and when in the first position, direct the light to the photo film by reflection, and when in the second position, direct the light to the printing projecting lens by reflection. A controller initially sets the plural micromirrors in the first position, to illuminate the picture frame in the photo film while the image area sensor is operated. According to the image data, the controller sets micromirrors in one first group in the DMD to the first position, and sets micromirrors in a second group in the DMD to the second position except for the first group, to modulate the light by reflection on the second group. Thus, the print frame is printed with the printing projecting lens.

An optical apparatus including an imaging apparatus and a lens apparatus each having a communicating portion performing communications is disclosed. The optical apparatus is provided with: an imaging optical unit; a memory in which information of an optical performance of the imaging optical unit is stored; an image pickup device imaging a subject image from the imaging optical unit; an imaging controller changing an information size of image information from the image pickup device; and a lens controller connected to the imaging controller through the communicating portions and performing communications with the imaging controller. The lens controller takes out the information of the optical performance from the memory in response to an instruction from the imaging controller, and transmits the information to the imaging controller through the communicating portions. The imaging controller changes the information size of the image information in accordance with the information of the optical performance from the lens controller.

An imaging system includes an interchangeable lens and a camera body. The camera body includes a second communication unit capable of communicating with a first communication unit, an imaging element operable to generate an image signal from the optical image, and a main body controller operable to transmit a reference signal for providing a reference of a driving start timing of the focus lens to the lens controller through the second and first communication units. The main body controller transmits the reference signal to the lens controller during a period for which neither communication of predetermined signals other than the reference signal nor process related to the communication is performed between the first communication unit and the second communication unit.

In a camera system including an interchangeable lens and a camera body, a body controller performs control a drive signal transmission unit to drive a focus lens in a predetermined direction, and transmit a timing signal to the interchangeable lens. The lens controller performs control to detect a position of the focus lens in synchronization with the timing signal received from the camera body and store the detected position in a storage unit.

A variable focal length (VFL) imaging system comprises a camera system, a first high speed variable focal length (VFL) lens, a second high speed variable focal length (VFL) lens, a first relay lens comprising a first relay focal length, a second relay lens comprising a second relay focal length, and a lens controller. The first relay lens and the second relay lens are spaced relative to one another along an optical axis of the VFL imaging system by a distance which is equal to a sum of the first relay focal length and the second relay focal length. The first high speed VFL lens and the second high speed VFL lens are spaced relative to one another along the optical axis on opposite sides of an intermediate plane which is located at a distance equal to the first relay focal length from the first relay lens. The lens controller is configured to provide synchronized periodic modulation of the optical power of the first high speed VFL lens and the optical power of the second high speed VFL lens.

The invention provides a finger vein image acquisition device. The device comprises a light source for irradiating a finger, an imaging device for generating an image of finger veins, and a main controller communicating with the imaging device; the finger vein image generated by the imaging device is output to the main controller by a video output port to be processed; the main controller comprises a finger entry identifying unit, a finger position judging unit, a finger vein image brightness adjusting unit, a light source controller, a filter plate, an optical lens, a CMOS controller, an LED indicating lamp, and a display controller, wherein the light source controller is used for controlling the brightness of the light source; the filter plate is used for filtering stray visible light and placed blow the finger; the optical lens is arranged adjacent to the filter plate; the LED indicating lamp is used for displaying the putting position of the finger; and the display controller is used for controlling the on and off of the LED indicating lamp. The device and the method can automatically and quickly acquire the high-quality finger vein image with proper brightness and proper position.

A system for providing an automatically focused image comprises an imaging system including a high speed periodically modulated variable focal length (VFL) lens, a VFL lens controller, a VFL-projected light source, a focus determining portion, an exposure timing adjustment circuit, and an exposure strobe time controller. The focus determining portion comprises an optical detector that inputs reflected VFL-projected light that is projected to, and reflected from, a workpiece through the VFL lens, and provides a focus deviation signal. The exposure timing adjustment circuit provides an exposure timing adjustment signal based on the focus deviation signal, which indicates a time when the imaging system focus Z-height approximately coincides with the workpiece surface Z height. The exposure strobe time controller uses the exposure timing adjustment signal to adjust the image exposure time so the imaging system focus Z-height coincides with the workpiece surface Z height at the adjusted image exposure time.

An imaging system includes an interchangeable lens and a camera body. The camera body includes a main body controller operable to transmit a reference signal for providing a reference of a driving start timing of the focus lens and delay time information indicating delay time with respect to the reference signal, to the interchangeable lens. The interchangeable lens includes a lens controller operable to control the focus lens to be driven at a timing obtained by delaying the timing provided by the reference signal by the delay time based on the reference signal and the delay time information received from the main body controller. The delay time is set so that, for example, an exposure timing of a predetermined area in the imaging element is substantially coincident with a stop period of the wobbling operation of the focus lens.

The invention discloses a method and a system for identifying an automobile tire number. The method comprises: a step of capturing a true-color image of the tire number; a step of converting the true-color image of the tire number into a digital bitmap; and a step of processing the digital bitmap and identifying the tire number. The step of processing the digital bitmap and identifying the tire number comprises: a step of performing grey processing and grey enhancement on the bitmap of the tire number; a step of positioning a tire number area; a step of binarizing an image of the tire number area; a step of eliminating the interference of an upper border and a lower border; a step of cutting a tire number character; and a step of performing normalization processing. The system comprises an image acquisition device, an image acquisition card and a computer, wherein the image acquisition device comprises a charge coupled device (CCD) camera, an auxiliary light source and a lens controller. The tire number on the lateral surface of an automobile tire can be intelligently, accurately and quickly identified, and the problem of the conventional technical scheme is solved.

An optical zoom tracking apparatus and method, and a computer-readable recording medium for performing the optical zoom tracking are disclosed. If an optical zoom function of a digital camera or mobile phone is executed, the optical zoom tracking apparatus commands a focus lens to move according to a continuous zooming operation, such that a clear image can be maintained while the image is continuously zoomed in or out, resulting in the effective use of limited power. The optical zoom tracking apparatus includes: a zoom lens which moves to adjust a magnification (i.e., a magnifying power) of a camera; a focus lens interoperable with the zoom lens; a zoom-lens drive for moving the zoom lens; a focus-lens drive for moving the focus lens; and a focus-lens controller for determining a moving distance of the focus lens according to a moving distance of the zoom lens, and transmitting a control signal corresponding to the moving distance of the focus lens to the focus-lens drive.

A camera system includes a replaceable lens and a body unit in which the replaceable lens is installed, and an image forming apparatus, in which a timer included in a lens controller is reset according to an instruction from a camera controller so that the replaceable lens is synchronized with the body unit, and focus is adjusted using location information detected by the replaceable lens and a focus estimation value calculated by the body unit.

The invention relates to a wireless image transmission system of an unmanned patrol device above water, comprising a shore system and a shipborne system, wherein the shipborne system comprises a camera, a shockproof cloud platform, a video monitor, a signal coding modulator, a wave filter and amplification device, a shipborne wireless transmitting unit, a receiver and an antenna. A cloud platform and a lens controller are respectively connected with the camera and the shockproof cloud platform, the camera is respectively connected with the video monitor and the signal coding modulator, the signal coding modulator is connected with the wave filter and amplification device, the wave filter and amplification device is connected with the shipborne wireless transmitting unit, and the receiver and the antenna are connected with the shipborne wireless transmitting unit; the shore system comprises a shore center receiving unit, a signal amplifier, a communication monitor computer, a decoder, a communication monitor computer, a video server and an independent display terminal; and the shore center receiving unit is respectively connected with the signal amplifier and the communication monitor computer, the signal amplifier is connected with the decoder, the decoder is connected with the video server, and the video server is connected with the independent display terminal.

An interchangeable lens mountable to a camera body, includes a driving object to be driven, an operating unit that receives an operation performed by a user to provide an instruction for driving the driving object, a driver that drives the driving object, and a lens controller that controls the driver. The lens controller notifies the camera body of information about drive of the driving object corresponding to the operation received by the operating unit, and thereafter, controls the driver to drive the driving object when obtaining information indicating permission for driving the driving object from the camera body.

A system for providing an automatically focused image comprises an imaging system including a high speed periodically modulated variable focal length (VFL) lens, a VFL lens controller, a VFL-projected light source, a focus determining portion, an exposure timing adjustment circuit, and an exposure strobe time controller. The focus determining portion comprises an optical detector that inputs reflected VFL-projected light that is projected to, and reflected from, a workpiece through the VFL lens, and provides a focus deviation signal. The exposure timing adjustment circuit provides an exposure timing adjustment signal based on the focus deviation signal, which indicates a time when the imaging system focus Z-height approximately coincides with the workpiece surface Z height. The exposure strobe time controller uses the exposure timing adjustment signal to adjust the image exposure time so the imaging system focus Z-height coincides with the workpiece surface Z height at the adjusted image exposure time.

Systems, measuring devices, and methods that continuously and automatically adjust the focus of a lens of a motion camera are described. A measuring device includes one or more infrared components that generate and receive one or more infrared signals for measuring a distance, a processing device, and a non-transitory, computer-readable storage medium. The non-transitory, computer-readable storage medium includes one or more programming instructions that, when executed, cause the processing device to continuously obtain data corresponding to a distance between a target object and a lens coupled to a motion camera from the one or more infrared components, determine one or more position parameters of the lens that corresponds to a focused image of the target object, and transmit the one or more position parameters to a lens controller, thereby causing the lens controller to adjust a positioning of the lens to correspond to the position parameters.

The present invention provides an interchangeable lens mounted on a camera body in an exchangeable manner, and the interchangeable lens includes: an optical system in which a state of a subject light flux incident to the mounted camera body is adjustable by changing an optical state; a contact position detecting unit with a detection plane, which detects a contact state including a contact and a contact position of a finger of a photographer, to detect a change in a contact position on the detection plane in an approximately same direction as an optical axis direction of the optical system; and a lens controller to control an optical state of the optical system according to a contact state of the finger including the contact position detected by the contact position detecting unit.

An image-pickup apparatus includes a first detector generating first information corresponding to a contrast state, a focus lens controller, a second detector outputting second information used for calculating an in-focus position, and a focus lens position detector. If the difference between the detected focus lens position and the calculated in-focus position is equal to or greater than a first value, the controller moves the focus lens towards the calculated in-focus position, and if the difference is less than the first value, the controller repeats focus control using the first information without using the second information. The apparatus reduces discontinuous movements of the focus lens.

In a camera system having an interchangeable lens apparatus (1) and a camera body (17), a lens controller (7) and a camera controller (12) conduct timely change between a first communication method for a video shooting mode and a second communication method for a still-image shooting mode, and reciprocally communicated via a contact unit (14). The camera controller (12) acquires time information in advance by an initial communication with the lens controller (7), and upon changeover from the first communication method to the second communication method, it interrupts communication after request information for changeover of the communication methods is transmitted to the lens controller (7), and initiates communication in the second communication method after elapse of a transition time indicated by time information. Upon changeover from the second communication method to the first communication method, the camera controller (12) initiates communication in the first communication method after elapse of a transition time indicated by the time information.

An autofocus apparatus includes a target position calculator for calculating a focus lens target position based on a defocus amount obtained based on the signal of focus detector of a phase difference detecting type and a focus lens position, a target position memory for storing the target position, a speed calculator for calculating an object speed in an optical axis direction based on a present target position, the previous target position, and time period between calculations of present target position and prior target position, and a lens controller for setting, when the object speed changes, a focus lens drive speed based on the present target position, the focus lens position and the object speed and setting, when the object speed does not change, the focus lens drive speed based on a present drive speed, a present defocus amount, and a previous defocus amount.

A charged particle beam apparatus includes: a charged particle source which generates a charged particle beam and which applies the charged particle beam to a specimen having a microstructure formed on a surface thereof; an objective lens which excites at least one of an electric field and a magnetic field to converge the charged particle beam onto the specimen; a deflector which scans the specimen with the charged particle beam; a detector which detects at least one of a secondary charged particle, a reflection charged particle and a back scattering charged particle generated from the specimen by the application of the charged particle beam and which outputs a detection signal; a focusing area arranging unit which arranges a plurality of focusing areas including edge points of the microstructure therein in a surface area of the specimen; deflection controller which controls the deflector so that the focusing areas are sequentially scanned to correspond to excitation conditions while changing stepwise the excitation conditions, the excitation conditions being conditions for the objective lens to excite at least one of the electric field and the magnetic field; focus calculator which calculates an index indicating a convergence state in each excitation condition on the basis of the detection signal outputted by the detector for the excitation conditions and the focusing areas and which calculates an optimum excitation condition providing an optimum focal position from the obtained index; and an objective lens controller which drives the objective lens under the optimum excitation condition.

An image-taking apparatus includes: a CCD having an imaging surface; and an image-taking optical system having an objective lens. The apparatus further includes: a shake detector that detects a shake of the image-taking apparatus; and a correction lens disposed between the objective lens and the CCD and moving in parallel with the imaging surface to correct a blur in an image formed on the imaging surface caused by the shake of the image-taking apparatus. The apparatus further includes: an electromagnet disposed behind the CCD and driving the correction lens; a power transmission system that moves the correction lens by transmitting power from the electromagnet to the correction lens; and a correction-lens controller that causes, based on a detection result from the shake detector, the electromagnet to drive the correction lens such that an image whose blur due to the shake is corrected is formed on the imaging surface.

There is provided an interchangeable lens mountable to a camera body. The interchangeable lens includes a zoom lens which can change a field angle of a subject image, a receiving unit for receiving sound pickup property information from the camera body, the sound pickup property information indicating sound pickup property of the camera body, and a lens controller for controlling drive of the zoom lens. The lens controller decides an available driving speed based on the sound collecting property information, the available driving speed being a driving speed settable to the zoom lens.

The present invention provides a lens controller which electrically controls a focus and a zoom of a taking lens, the lens controller comprising: an AF control device which automatically controls the focus of the taking lens so that a given subject imaged by the taking lens is in focus; and a view angle correction device which keeps an angle of view of the taking lens constant by moving the zoom of the taking lens to prevent a variation of the angle of view associated with a movement of the focus moved by the AF control device; wherein, when the focus is moved by the AF control device, the view angle correction device detects a current position of the focus by a position detecting device, obtains a position of the zoom for preventing the variation of the angle of view based on the detected current position of the focus, and moves the zoom to the obtained position.

A variable focal length (VFL) lens system is provided including a VFL lens, a VFL lens controller, an objective lens, a camera and an optical power monitoring configuration. During a standard workpiece imaging mode, the objective lens transmits workpiece light along an imaging optical path through the VFL lens to the camera, which provides a corresponding workpiece image exposure. During an optical power monitoring mode, the optical power monitoring configuration produces a monitored beam pattern which travels along at least a portion of the imaging optical path through the VFL lens to the camera, which provides a monitoring image exposure. Different monitoring image exposures are acquired at different phase timings of the periodic modulation of the VFL lens, and a dimension of the monitored beam pattern is measured in each monitoring image exposure as related to an optical power of the VFL lens at the corresponding phase timing.