| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 396061000 | FLASH SYSTEM RESPONSIVE TO FOCAL LENGTH OR DISTANCE | 9 |
| 20090245775 | IMAGE PICKUP APPARATUS, CAMERA SYSTEM, AND CONTROL METHOD FOR IMAGE PICKUP APPARATUS - An image pickup apparatus capable of executing photographing using an emission unit that emits light to a subject includes an acquisition unit for obtaining distance-to-subject information based on lens driving information on a taking lens obtained upon focus adjustment, a detection unit for detecting a face of the subject based on an image signal obtained upon image pickup, a distance calculation unit for calculating a distance to subject based on a result of detection by the detection unit, and an emission amount calculation unit for calculating an amount of main emission of the emission unit based on the distance-to-subject information obtained by the acquisition unit and the distance to subject calculated by the distance calculation unit. | 10-01-2009 |
| 20100021151 | Image acquisition apparatus - The invention relates to an image acquisition apparatus, in particular a camera, for the identification of objects, comprising a focusable optical receiving system and an illumination unit including an object illumination and/or positioning illumination, wherein the object illumination and/or positioning illumination is adjustable and can hereby be matched to the focus of the optical receiving system, and wherein the object illumination and/or positioning illumination is coupled to the optical receiving system such that an adjustment of the focus of the optical receiving system automatically effects a matching of the object illumination and/or positioning illumination to the adjusted focus. | 01-28-2010 |
| 20100247084 | IMAGING DEVICE, FOCUSING METHOD AND PROGRAM - An image processing circuit/CPU performs AF processing in response to a halfway shutter operation and upon confirmation of a shooting shutter instruction causes a light emitting unit in a flash circuit to emit light, and decides an amount of light to be emitted at a shooting time based on a brightness component of an output signal of an imaging element, whereby a subject distance is calculated from the amount of light emitted at shooting time, and wherein, when the in-focus decision in the AF processing is negative, an optical lens is moved by a lens drive circuit to a position corresponding to the subject distance which has been acquired based on the amount of light emitted at the shooting time, and a shooting operation is then performed. | 09-30-2010 |
| 20110317988 | Apparatus and method for controlling light intensity of camera - Provided is an apparatus and method of controlling light intensity of a camera. The method of controlling light intensity of a camera includes generating a code value for correcting a positional error of the camera to store the positional error in a memory, and then, reflecting the code value for correcting the positional error to generate a code value upon auto-focusing. Next, after measuring a distance to a subject through displacement of a camera lens according to the auto-focusing, light intensity of a flash is adjusted according to the distance to the subject. | 12-29-2011 |
| 20120177352 | COMBINED AMBIENT AND FLASH EXPOSURE FOR IMPROVED IMAGE QUALITY - A method for capturing an improved archival image using an electronic image capture device having a flash, comprising: capturing at least two preview images of a scene at different capture times using the image capture device; determining a scene brightness; using a processor to analyze the captured preview images to determine a motion velocity for the scene; determining a flash exposure setting and an ambient exposure setting responsive to a ratio between the determined scene brightness and the determined motion velocity; and capturing an archival image using the determined flash exposure setting and the determined ambient exposure setting. | 07-12-2012 |
| 20120288263 | LIGHT EMISSION CONTROL DEVICE AND LIGHT EMISSION CONTROL METHOD - A control device is provided for controlling a light emission device. The control device includes a light metering unit configured to acquire respective light metering values from a plurality of light metering regions. The control device further includes a correction unit configured to correct information about a light metering value of a target region based on a result of comparison between the light metering value of the target region and the light metering value of the light metering region at the periphery of the target region among the plurality of light metering regions, the result being acquired by the light metering unit allowing the light emission device to perform pre-flashing. Also, a calculation unit is provided which is configured to calculate a main light emission amount of the light emission device based on the information about the light metering value corrected by the correction unit. | 11-15-2012 |
| 396062000 | Illumination angle responds to focal length or distance | 3 |
| 20080279541 | Optical Device and Light Source - An optical device directs light from a light source to a region of space, such as the field of view of a camera when the optical device is used as a camera flash unit. This device includes a first optical element which converges light from the light source towards an inner portion of the region to be illuminated and a second optical element which diverges part of the light from the first element outwardly towards an outer portion of the region to be illuminated so as to achieve adequate central illumination with improved uniformity of illumination across the region to be illuminated. The second optical element may have a concave multiple-faceted surface comprising plane facets in the shape of an open-base inverted truncated pyramid, contiguous sector-shaped facets, at least some of which are concave, or a face divided into an elongate portion disposed between first and second diverging portions. | 11-13-2008 |
| 20120219277 | Luminaire, Camera or Camcorder Having Same and Optical Element for a Luminaire - A luminaire ( | 08-30-2012 |
| 20130064531 | ZOOM FLASH WITH NO MOVING PARTS - A camera system having an electronic flash with a variable illumination angle, comprising: an image forming system having a user-selectable field-of-view for forming an image of a scene onto an image plane; an electronic flash system including a plurality of fixed focal length illumination lenses having two or more different focal lengths and one or more light emitters positioned behind each of the illumination lenses, the light emitters being positioned relative to their respective illumination lenses to provide two or more different illumination angles onto the scene; and a flash controller that selectively fires different subsets of the light emitters responsive to the selected field-of-view of the image forming system. | 03-14-2013 |
