OmniVision’s image sensor for endoscopes, cathetersMay 29, 2018
OmniVision Technologies, Inc. has introduced OH01A, a high definition (HD) medical image sensor. The OH01A provides 1280 x 800 resolution at a rate of 60 frames per second (FPS) in a tiny 2.5 x 1.5 mm package.
The OH01A can be used for many diagnostic endoscope procedures, including airway-management (esophagoscopes, laryngoscopes, thorascopes, pleuroscopes, bronchoscopes, mediastinoscopes) and urology (utero-renoscope) applications.
The OH01A has a 1/11-inch optical format, a 1.1-micron pixel and RAW data output. It offers 1280 x 800 resolution, which can be resized to 720p for HD (16:9 aspect ratio) or 800 x 800 for square displays. Both modes operate at 60 FPS for crisp, jitter-free images.
Being stereo-ready, two OH01A image sensors can be synchronized to create 3D images for surgical procedures. Power consumption is 25% lower than that of previous-generation medical image sensors, which keeps the distal tip of the endoscope cooler for greater patient comfort. A high chief ray angle of 32 degrees enables a wider field of view in a slimmer module, resulting in a shorter rigid endoscope distal tip that allows for a tight bend radius.
Support for both MIPI and sub-LVDS output interfaces allows the OH01A to transmit image data over long distances. It also integrates one-time-programmable (OTP) memory to store manufacturing and calibration information.