Tuesday, October 23, 2018

NIT InGaAs Gated Imager Demo

NIT publishes one more gated imaging demo based on its InGaAs Sensor having 640x512 pixels resolution at 15µm pitch:

ST Presents Pixel with 2 Memories for Automotive Applications

Autosens presents an interview with ST taken in Brussels in September 2018. Nicholas Roux from STMicro talks about a new NIR global shutter pixel with 2 memories for in-cabin automotive applications:

Omnivision Announces Low-Cost BSI Sensors for Security Applications

PRNewswire: OmniVision announces its latest 2um image sensor family built on its OmniBSI pixel, the OS02F10 and OS04B10. "Previously, entry-level IoT security and surveillance cameras could only afford frontside illumination image sensors, which has limited the performance of these cameras," said Brian Fang, business development director at OmniVision. "With our new OS02F10 and OS04B10 image sensors, even security cameras designed for residential applications will no longer have to sacrifice performance for cost effectiveness. The compact OmniBSI architecture reduces pixel crosstalk, yielding excellent image quality."

The 1/4-inch OS02F10 is a 2MP sensor that supports 1080p video at 30 fps. The OS02F10 consumes less than 120 mW.

The 1/3-inch OS04B10 has 3.6MP resolution that supports 2K (2560 x 1440) resolution video at 30 fps. The OS04B10's power consumption is less than 140 mW.

The OS02F10 and OS04B10 sensors are available now.

Qualcomm Snapdragon 675 Supports 480fps HD Slo-Mo, Triple Cameras

PRNewswire: Qualcomm Snapdragon 675 application processor features new Spectra 250L ISP and supports limitless 480 fps HD slo-mo recording and triple cameras:

"Snapdragon 675 is designed to enable smartphone users to capture images and videos in professional-grade quality during the day and night, in slow-motion and with the help of AI. Snapdragon 675 supports a triple camera configuration in the front or back, supporting features such as telephoto, wide angle, and super-wide image capture, as well as enhanced portrait mode (Bokeh), 3D face unlock and 'epic' selfies. Additionally, Snapdragon 675 provides limitless slo-mo – capable of recording extended slo-mo video clips in HD, not limited to one second or shorter bursts."

Monday, October 22, 2018

NIT Presents SWIR Gated Imager

NIT video shows its new SWIR gated imager:

Sony Enhances MIPI D-PHY with Multiple Devices Connection Capability

Sony IMX418 global shutter CMOS sensor comes with an interface capable of multiple sensor connection on a single MIPI D-PHY input port, said to be the world-first sensor based on Sony's original data transmission technology. The company expects this product to be used in head mounted displays (HMD), drones, autonomous robots and other products that perform SLAM and obstacle detection based on information obtained with image sensors.

Image Sensor Imperfections

Caeleste has updated its 3-year old presentation "Imperfections of high-performance image sensors" by Bart Dierickx:

SPAD Quenching with 7.8ps Timing Jitter

MDPI Instruments publishes a paper "Quenching Circuit and SPAD Integrated in CMOS 65 nm with 7.8 ps FWHM Single Photon Timing Resolution" by Frédéric Nolet, Samuel Parent, Nicolas, Marc-Olivier Mercier, Serge A. Charlebois, Réjean Fontaine, and Jean-Francois Pratte, Université de Sherbrooke, Canada.

"This paper presents a new quenching circuit (QC) and single photon avalanche diode (SPAD) implemented in TSMC CMOS 65 nm technology. The QC was optimized for single photon timing resolution (SPTR) with a view to an implementation in a 3D digital SiPM. The presented QC has a timing jitter of 4 ps full width at half maximum (FWHM) and the SPAD and QC has a 7.8 ps FWHM SPTR. The QC adjustable threshold allows timing resolution optimization as well as SPAD excess voltage and rise time characterization. The adjustable threshold, hold-off and recharge are essential to optimize the performances of each SPAD. This paper also provides a better understanding of the different contributions to the SPTR. A study of the contribution of the SPAD excess voltage variation combined to the QC time propagation delay variation is presented. The proposed SPAD and QC eliminates the SPAD excess voltage contribution to the SPTR for excess voltage higher than 1 V due to its fixed time propagation delay."

Sunday, October 21, 2018