Class / Patent application number | Description | Number of patent applications / Date published |
396157000 | Having preexposure illumination | 23 |
20080199171 | IMAGING DEVICE - In order to appropriately measure light during preliminary light emission, regardless of an imaging sensitivity during imaging in an imaging device which measures light during preliminary light emission based on an image signal which is output from an imaging unit based on reflected light from an object, and calculates an amount of main light emission during imaging based on the measurement result, an imaging unit outputs an image signal which is amplified by an amplification corresponding to an imaging sensitivity based on object light. A strobe controller measures reflected light from an object during preliminary light emission which is executed prior to the main light emission during imaging based on an image signal which is output by the imaging unit based on the reflected light, and calculates an amount of main light emission for the main light emission based on the measurement result. The strobe controller sets an amount of light emission for the preliminary light emission based on the imaging sensitivity during the imaging. | 08-21-2008 |
20080199172 | PICKUP APPARATUS - An image pickup apparatus, for controlling actual flash amount at the time of exposure based on an amount of reflected light from a predetermined metering region of a screen, comprises a first screen dividing section for dividing the screen into a first region, constituting a candidate for the metering region, and a second region other than that by comparing first feature data of image data that has been acquired by performing pre-flash before actual flash and second feature data of image data taken without performing pre-flash, a second screen dividing section for dividing the screen into a third region, being a region of an image having a predetermined feature, and a fourth region other than that, an image evaluation section for evaluating whether to include in the metering region or remove from the metering region based on different evaluation criteria according to whether the image of the third region or the fourth region belongs to the first region, or belongs to the second region, and a flash amount control section for controlling actual flash amount based on reflected light amount from regions that have been included in the metering region by the image evaluation section. | 08-21-2008 |
20090136224 | Camera, camera system and light emission controlling method - A camera includes: a light emission unit that emits illumination light; an amount of emitted light control unit that, during photography using the illumination light, controls the amount of illumination light to be emitted during photography based upon the amount of light reflected back from the photographic subject during a preliminary emission of light; and a color temperature control unit that controls the color temperature of the illumination light during the preliminary light emission, based upon color information for ambient light. | 05-28-2009 |
20090162046 | IMAGING APPARATUS, CAMERA SYSTEM, AND CONTROLLING METHOD THEREFOR - A camera system that enables to stabilize, when photographing by using a flash apparatus in a live view state, the time lag between pressing the release button and starting the imaging operation thereafter, and also enables to execute the photographing with the short time lag. Photometry is performed in first pre-light emission executed before main light emission of a flash apparatus. Photometry is performed in second pre-light emission executed between the first pre-light emission and the main light emission. shooting condition for the camera system in the second pre-light emission is set based on a photometric value in the first pre-light emission so that an output of the second photometry unit is within a predetermined range. An amount of the main light emission of the flash apparatus is determined based on the photometric value in the second pre-light emission. | 06-25-2009 |
20090285573 | Camera system, camera body, flash device, and illumination method - A camera system includes: a light emitting unit that performs a main emission of light in which during photography a photographic subject is illuminated with a first light having s a first color temperature, and a preparatory emission of light in which the photographic subject is illuminated with a second light having a second color temperature before photography; an imaging element that outputs an image capture signal; a calculator that calculates an amount of the first light by the light emitting unit, based upon the image capture signal output during the preparatory emission of light; a corrector that corrects the calculated amount of the first light, based upon a color temperature difference between the first color temperature and the second color temperature; and a controller that controls the light emitting unit to perform the main emission of light at the amount of the first light after correction by the corrector. | 11-19-2009 |
20100046936 | PHOTOGRAPHING CONTROL METHOD AND APPARATUS USING STROBE - Provided are a photographing control method and apparatus. The photographing control method includes: obtaining image data from a subject during pre-emission of a strobe, detecting a face region of the subject based on the obtained image data, and performing a calculation for main emission based on the detected face region and controlling main emission of the strobe. Accordingly, even when it is difficult to detect a face because of low brightness at the position of the face, the probability of detecting the face can be increased and an appropriately exposed image can be obtained. | 02-25-2010 |
20100080549 | IMAGING APPARATUS AND METHOD FOR CONTROLLING FLASH EMISSION - An imaging apparatus includes: flash driving means for driving a flash during a set preliminary emission period and a set main emission period; and an image sensor constituted by a plurality of photoelectric converting elements which are arranged in a matrix and capable of being accessed randomly. The charge accumulation initiation timing and the charge accumulation cessation timing of the photoelectric converting elements are controlled line by line or pixel by pixel. The imaging apparatus forms images employing pixel signals output from the photoelectric converting elements, and extracts pixel signals output from photoelectric converting elements in which charge accumulation is initiated prior to the preliminary emission period and ceased after the preliminary emission period. An emission amount to be employed during the main emission period is determined by executing predetermined calculations based on the extracted pixel signals. Main emission of flash is performed with the determined emission amount. | 04-01-2010 |
20100098400 | IMAGE CAPTURE APPARATUS WITH CHARGED CAPACITOR SWITCHING DEVICE FOR PHOTOFLASH - A charged capacitor switching device for a photoflash is provided and includes a flash control unit, a capacitor charging/discharging unit, a charged capacitor switching unit and an illumination modulator. The capacitor charging/discharging unit coupled to the flash control unit includes a plurality of capacitors connected in parallel and switches coupled thereto respectively. The charged capacitor switching unit determines whether each switch is opened or closed according to a compensation parameter. The illumination modulator compares an environmental illumination and a pre-flash illumination to generate a compared result, determines whether the compared result has reached a threshold, obtains the compensation parameter according to the compared result when the compared result is below the threshold, and drives the flash control unit to generate a flash illumination corresponding to the compensation parameter. | 04-22-2010 |
20100232778 | METHOD AND APPARATUS FOR CONTROLLING FLASH EMISSION - In a method and apparatus for controlling flash emission, the brightness during pre-emission may be accurately measured even when operating an image sensor using a rolling shutter. When pre-emission of flash light is performed, partial exposure during the pre-emission when operating an image sensor using a rolling shutter may be prevented by synchronizing an exposure time of the image sensor to a pre-emission time. | 09-16-2010 |
20100322613 | Camera Integrated with Direct and Indirect Flash Units - A compact camera with a compact camera body integrated with a lens, a direct flash module and an indirect flash module. The direct flash unit includes a flash light emission window arranged to project direct illumination in a first direction toward an object to be photographed. The indirect flash unit includes an indirect flash light emission window arranged to project indirect bounce illumination in a second direction off of an indirect reflecting surface to the object. The camera also has a controller that receives a first signal containing information from a first light sensor connected to the direct flash unit, and a second signal containing information from a second light sensor connected to the indirect flash unit. In response to the received first and second signals, the controller selectively adjusts the amount of flash illumination projected from the direct and indirect flash units. | 12-23-2010 |
20110135293 | LENS UNIT, CAMERA BODY, CAMERA DEVICE, AND IMAGING METHOD - A lens unit is detachably connected via a communication interface with a camera body having a strobe and constituting a camera device. The lens unit is configured to include an optical system including a lens; an imaging unit including an image sensor which photo-electrically converts light from a subject having transmitted through the lens; an image processor which generates image data from an output of the imaging unit; and a strobe controller which controls a flash operation of the strobe provided in the camera body in accordance with a release signal from the camera body. | 06-09-2011 |
20110280560 | FLASHING CONTROL METHOD FOR A DIGITAL CAMERA - The present invention is directed to a flashing control method for a digital camera. Indices respectively corresponding to sensitivity values are firstly determined. Subsequently, main-flash intensities are respectively obtained with respect to the sensitivity values such that their target brightness values are substantially the same after exposure, thereby constructing an energy table. Further, a predetermined preflash is fired to obtain a corresponding preflash brightness value with respect to each distinct distance. Main-flash indices are then respectively obtained according to maximum main-flash intensity and the energy table with respect to the distinct distances such that the target brightness values are substantially the same after exposure, thereby constructing a preflash table. During picture capturing, the main-flash intensity is obtained according to the preflash brightness value and the preflash table. | 11-17-2011 |
20120033959 | METHODS AND APPARATUS FOR FLASH INTENSITY VALUE MANAGEMENT IN A PHOTOGRAPHIC ENVIRONMENT - Methods for providing a flash management feature (“FMF”) in a camera system include obtaining a flash intensity value calculated for a flash device by a camera, saving the calculated flash intensity value in memory, accepting a user-provided adjustment of the calculated value, saving the adjusted flash intensity value in a memory, and providing, when the camera transmits the calculated value to the flash device for use during image acquisition, the adjusted value to the flash device instead of the calculated value. A communication device to provide a FMF includes a microprocessor configured to obtain a calculated flash intensity value from a camera, a memory, and a user interface configured to display and allow a user to adjust the calculated value. The microprocessor stores the adjusted flash intensity value in memory, and signals the flash device to emit light at the adjusted value during image acquisition by the camera. | 02-09-2012 |
20120189290 | IMAGE CAPTURE APPARATUS, LIGHT EMITTING DEVICE, AND LIGHT EMISSION AMOUNT CALCULATION METHOD - When information associated with an object distance cannot be acquired, an image capture apparatus sets a condition required to determine a reference area used to determine weighting coefficients for respective photometry areas from a plurality of photometry areas, based on photometric values of the plurality of photometry areas obtained by making preliminary light emission. | 07-26-2012 |
20120189291 | ILLUMINATION DEVICE FOR A CAMERA, AND METHOD FOR OPERATING THE SAME - An illumination device contains a light-emitting semiconductor chip containing a plurality of individually drivable emission regions. The illumination device furthermore contains an optical element designed to shape light emitted by the emission regions to form a beam of rays. The illumination device is designed such that different beam profiles of the beam of rays can be set by the individually drivable emission regions. | 07-26-2012 |
20120251090 | CAMERA - A camera including a main body, a lens and a flashlight module is provided. The main body has an image capturing unit. The lens is disposed on the main body at a position corresponding to the image capturing unit for guiding lights to the image capturing unit. The flashlight module includes a first light source and second light sources. The first light source is disposed on the main body and has a first emitting area. The second light sources are disposed on the main body and surround the first light source. Each second light source has a second emitting area. The second emitting areas surround the first emitting area. | 10-04-2012 |
20130156413 | REDUCED PRE-FLASH FOR LED FLASH BASED CAMERA DEVICES - A mobile device comprising a processor, a camera module, and a flash configured to generate at least one of a reduced pre-flash, a standard pre-flash and a flash. The processor, in response to receiving an image capture request, is configured to receive a brightness value and determine a flash status based on a flash setting with the flash status being one of an off mode, on mode, and auto mode. In the event the flash status is one of the on mode and auto mode, determine whether there is sufficient light to capture an image based at least in part on a comparison of the brightness value and a flash threshold. In the event the brightness value is greater than the flash threshold, cause the flash to generate a shortened pre-flash and obtain only a white balance measurement and an auto-exposure measurement during the shortened pre-flash. | 06-20-2013 |
20140099091 | Methods and Apparatus for Flash Intensity Value Management Based on a TTL Value - Methods for providing a flash management feature (“FMF”) in a camera system include obtaining a flash intensity value calculated for a flash device by a camera, saving the calculated flash intensity value in memory, accepting a user-provided adjustment of the calculated value, saving the adjusted flash intensity value in a memory, and providing, when the camera transmits the calculated value to the flash device for use during image acquisition, the adjusted value to the flash device instead of the calculated value. A communication device to provide a FMF includes a microprocessor configured to obtain a calculated flash intensity value from a camera, a memory, and a user interface configured to display and allow a user to adjust the calculated value. The microprocessor stores the adjusted flash intensity value in memory, and signals the flash device to emit light at the adjusted value during image acquisition by the camera. | 04-10-2014 |
20140369673 | TTL Photographic Wireless Communication System and Method with Exposure Compensation Value Transfer to a Remote Lighting Device - A system and method for synchronizing a remote lighting device to a camera using a hot shoe connection and an external device connected via the hot shoe connector. The external device receives TTL data and a synchronization signal from the camera via the hot shoe connector. The external device wirelessly communicates using a radio frequency transmitter an exposure compensation value from the external device to a remote lighting device. The external device also wirelessly communicates a synchronization signal and a TTL information to the remote lighting device for use in synchronizing the remote lighting device to image acquisition by the camera. | 12-18-2014 |
396158000 | For red-eye reduction | 4 |
20090175613 | INTELLIGENT RED EYE REMOVAL - A device measures one or more of a distance from an eye of a subject, a blink of the eye, and lighting adjacent to the subject, calculates automated red eye removal settings based on one or more of the measured distance, blink, and lighting, automatically removes red eye from an image of the subject based on the calculated automated red eye removal settings, captures the image of the subject, and stores the captured image. | 07-09-2009 |
20100074610 | Flash thermal feedback for camera auto-exposure - An intensity of a second flash is determined based at least partly on a predicted thermal condition that is influenced by a first flash that is previous to the second flash. A quality function of an image capture device is adjusted according to the determined intensity of the second flash. A scene is illuminated by the second flash at the determined flash intensity and the illuminated scene is captured and stored as an image using the adjusted quality function. In exemplary embodiments, an auto-exposure algorithm is compensated for flash intensity, which is maximized in view of temperature limits and constraints due to firing a pre-flash prior to capturing the image. Various approaches and apparatus and software are detailed. | 03-25-2010 |
20100226639 | INTELLIGENT RED EYE REMOVAL - A device measures one or more of a distance from an eye of a subject, a blink of the eye, and lighting adjacent to the subject, calculates automated red eye removal settings based on one or more of the measured distance, blink, and lighting, automatically removes red eye from an image of the subject based on the calculated automated red eye removal settings, captures the image of the subject, and stores the captured image. | 09-09-2010 |
20120141104 | DYNAMIC LIGHTING CONTROL IN HYBRID CAMERA - PROJECTOR DEVICE - A method and portable device for capturing a still image is described. The portable device comprises both an image projector for projecting images and a sensor for capturing images. A first image is captured and a flash image is generated based on the captured first image to adjust lighting of the image subject. The generated flash image is projected onto the image subject using the projector and a second image is captured while the flash image is projected onto the image subject. | 06-07-2012 |