The medical-grade OH08A image sensor features a 1/2.5-inch optical format, incorporates 1.4µm PureCel Plus-S pixel and offers 4K2K resolution in a small 7.1 x 4.6mm package for chip-on-tip endoscopes. The OH08B has a 1/1.8-inch optical format, uses a larger 2.0µm PureCel pixel in a 8.9 x 6.3mm package and features OmniVision’s Nyxel technology with enhanced NIR sensitivity.
“Our next-generation OH08A/B 8MP image sensors are targeted at endoscopes with a 10-12mm outer diameter, such as gastroscopes, duodenoscopes, amnioscopes, laparoscopes and colonoscopes. They deliver higher image quality, up to 4K2K resolution at 60 fps, greatly improving the doctor’s ability to visualize the human anatomy during these important procedures,” said Richard Yang, senior staff product marketing manager at OmniVision. “In the OH08B, we’ve taken our sensor to the next level by adding Nyxel technology, which offers better performance in color and IR sensitivity, enabling doctors to see sharper video during NIR, fluorescence, chromo-endoscopy and virtual endoscopy procedures. Also, higher sensitivity results in less illumination, thus reducing the heat at the tip of the endoscope.”
The OH08A offers 8MP Bayer still frame or 4K video in real time. It features 4-cell three-exposure HDR with tone mapping for improved HDR output at 1080p60 or native 4K2Kp60 resolution and two-exposure staggered HDR support.
The OH08B's Nyxel technology provides 3x QE improvement at both the 850nm and 940nm wavelengths. It allows the use of lower-power IR illumination, resulting in significantly reduced chip-on-tip power consumption.
Other key features include a 15.5 degree CRA for the OH08A and 11 degree CRA for the OH08B, enabling the use of lenses with large field of view and short focus distance; PWM output LED drivers; and 4 lane MIPI output with raw data. These sensors are stereo ready with frame synchronization to support a host of depth perception applications. Additionally, they are autoclavable for reusable endoscope sterilization.
The OH08A/B image sensors are available for sampling now in a chip scale package.
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