Class / Patent application number | Description | Number of patent applications / Date published |
396090000 | Lens resetting | 7 |
20100040355 | CALIBRATION METHODS FOR IMAGING SYSTEMS AND IMAGING SYSTEMS USING SUCH - A method for calibration in the field of imaging systems and imaging systems using the method for calibration. In particular, the method involves calibration in the field of open loop variable focus imaging systems and methods for calibration in the field of imaging system having a variable optical parameter. | 02-18-2010 |
20100111514 | CAMERA LENS ASSEMBLY AND AUTOFOCUSING METHOD THEREFOR - Provided is a method for focusing a camera lens assembly, the focusing method including assembling a lens and a camera device; measuring an actual distance between the lens and the camera device in an assembled position; inputting a difference of the actual distance from a focal length of the lens; and when power is applied to the camera lens assembly, adjusting a distance between the lens and the camera device according to the offset value, such that the distance between the lens and the camera device becomes equal to the focal length of the lens. | 05-06-2010 |
20110150446 | Method and Apparatus for Processing Digital Image by Using Fast Autofocus - A method of performing fast autofocus (AF) in a digital image processing apparatus having a plurality of lenses mounted therein. By dynamically setting AF search start positions and AF search directions by using current AF position information, fast AF may be performed. | 06-23-2011 |
20110170846 | METHOD AND APPARATUS FOR AUTO-FOCUS CONTROL OF DIGITAL CAMERA - Disclosed is a method for auto-focus control of a digital camera, the method including moving a focus lens of the digital camera to a position for a longest-distance photographing, and then extracting an edge value according to a corresponding position while moving the focus lens by a preset interval in a direction toward an image sensor; estimating a form of a preset function based on the extracted edge values, and calculating a maximum value of the estimated function; calculating a difference between a maximum value of the preset function calculated at a first current position of the focus lens and a maximum value of the preset function calculated at a previous position of the focus lens; and moving the focus lens to a position corresponding to a currently-calculated maximum value of the preset function when the difference between the maximum value of the preset function calculated at the first current position of the focus lens and the maximum value of the preset function calculated at the previous position of the focus lens is less than or equal to a preset threshold value. | 07-14-2011 |
20110217030 | Method to determine auto focus of a digital camera - An image is focused onto an image sensor array by efficient movement of an adjustable focus lens by a lens focus motor. A minimum of three focus positions is required to determine an estimated best focus position of the lens focus motor. After which a sweep of the focus positions surrounding the estimated best focus position is performed to verify and determine the best actual focus position of the lens focus motor. A sharpness value of the image being focused comprising a Sobel edge detection or other detections means provide sharpness data to evaluate image sharpness at various lens focus motor positions. | 09-08-2011 |
20120076481 | LENS MOVEMENT CONTROL METHOD AND LENS MOVEMENT CONTROL APPARATUS OF CAMERA MODULE - A lens movement control method and a lens movement control apparatus of a camera module for preventing allophone of a Voice Coil Actuator (VCA) are provided. The lens movement control method of a camera module includes switching the camera module from a camera operation mode to a camera stop mode, generating a control signal for removing the occurrence of VCA allophone in the camera stop mode, moving a lens to a VCA allophone removal location based on the generated control signal, and powering-off the camera module to move the lens moved to the VCA allophone removal location to a bottom surface of the lens. | 03-29-2012 |
20130183026 | INTERCHANGEABLE LENS AND CAMERA SYSTEM - An interchangeable lens attachable to a camera body includes an image pickup optical system configured to form an optical image of an object, and a controller configured to start initializing an optical element included in the image pickup optical system so as to move the optical element to a predetermined position when the controller receives a first signal that commands a start of an initialization from the camera body, and configured to start initializing the optical element after the controller receives identification information from the camera body and a period elapses for which the camera body consumes more than a predetermined amount of power when the controller does not receive the first signal from the camera body. | 07-18-2013 |