Two global shutter sensors are for vehicles’ in-cabin applications
The OX02C1S and OX01H1B sensors have been added to Omnivision’s Nyxel near-infrared (NIR) family.
The OX02C1S is a 2.5Mpixel RGB‑IR BSI global shutter (GS) sensor for in-cabin driver and occupant monitoring systems (DMS and OMS). The OX01H1B is a 1.5Mpixel mono (IR) GS sensor for DMS. Both sensors have a pixel size of just 2.2 microns and use NIR quantum efficiency (QE) at 36 per cent. This is a significant increase in modulation transfer function (MTF) over the previous 3.0 micron FSI GS pixel design, said Omnivision.
The OX02C1S and OX01H1B sensors have the same features as the 5Mpixel OX05B1S GS sensor introduced last year. All three sensors share the same pixel technology, so it’s a seamless process for automotive OEMs to incorporate any combination of them as solutions in their full line-up, from high-end to mainstream vehicles, advised Paul Wu, automotive product marketing manager, Omnivision.
Colin Barnden, principal analyst at Semicast Research, commented, “The CMOS image sensor market for automotive DMS and OMS can be divided into three distinct segments: digital cockpit, automated driving and NCAP / GSR (New Car Assessment Program / General Safety Regulation) compliance. Performance requirements differ significantly for each. Designers must also consider sensor location, including rear-view mirror, steering column and centre console,” he said.
Both the OX02C1S and OX01H1B are small, automotive-grade sensors with QE for low-light performance. Both use OmniPixel 4‑GS technology which enables simultaneous image detection in all pixels to accurately reproduce rapid motion without any deformation. They have integrated ASIL‑B and cybersecurity that meet the latest industry standards.
Both come in an Omnivision stacked a‑CSP package, allowing for higher-performance image sensors in tighter camera spaces. They are also available in a reconstructed wafer option for designers that want the flexibility to customise their own package.
The OX02C1S sensor features 2.5Mpixel resolution in a 1/3.52‑inch optical format, while the OX01H1B features 1.5Mpixel resolution in a 1/4.51‑inch optical format.
Samples of the OX02C1S and OX01H1B GS sensors are available now. They will be in mass production in 2024.
