CMOS image sensor designed for endoscopic surgical procedures

12th July 2018
Source: Omnivision
Posted By : Lanna Cooper
CMOS image sensor designed for endoscopic surgical procedures

OmniVision has announced the OV2741, a new PureCel-S stacked-die sensor that extends OmniVision’s high definition (HD) medical image sensor family. The OV2741 provides 1080p full HD resolution and high image quality in a compact chip-scale package. It offers 1920x1080 resolution at a rate of 60 frames per second (FPS), for jitter-free, full-HD video. It also has a broadband double anti-reflective coating on its cover glass to eliminate glare, ghosting and reflections due to strong illumination.

With high image quality, ease of integration, and compact size, the OV2741 is suitable for many endoscopic devices used in diagnostic and surgical procedures, including airway-management (esophagoscopes, laryngoscopes, thorascopes, pleuroscopes, bronchoscopes, mediastinoscopes) and gastro-intestinal (gastroscopes, duodenoscopes, amniscopes) applications.

“To ensure the best patient outcomes, surgeons need 1080p HD resolution and excellent image quality when performing endoscopic surgeries,” said Tehzeeb Gunja, Principal Marketing and Business Development Manager at OmniVision. “The OV2741 meets those needs, while eliminating the glare and reflections from endoscope lights by using an innovative anti-reflective coating.”

The OV2741 image sensor has a 1/6" optical format for low light operation, a 1.4-micron pixel size and supports RAW data output. The sensor’s PureCel-S stacked pixel architecture delivers the highest quality images with improved sensitivity, less saturation, high full-well capacity, no blooming and low color crosstalk.

The OV2741’s low power consumption of just 90mW, while operating at 60 FPS and full HD resolution, keeps the distal tip of the endoscope cooler for greater patient comfort. The OV2741 is also stereo-ready, enabling two image sensors to be synchronised for 3D video during surgical procedures.

The sensor integrates One-Time-Programmable (OTP) memory to store manufacturing and calibration information. It also has an on-chip Pulse Width Modulator (PWM) to drive LED illumination without the need for an external driver IC. Additionally, the OV2741 can be both autoclaved for reusable applications and sterilised for disposable ones.


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