New Imaging Technologies image sensor achieves wide dynamic range

New Imaging Technologies' NSC1101-SI is a 640 × 512-pixel wide-dynamic-range (WDR) indium gallium arsenide (InGaAs) image sensor with a 15-µm pixel size.

New Imaging Technologies NSC1101-SI image sensor
New Imaging Technologies NSC1101-SI image sensor

NSC1101-SI is a 640 × 512-pixel wide-dynamic-range (WDR) indium gallium arsenide (InGaAs) image sensor with a 15-µm pixel size. The sensor provides a dynamic range of more than 120 dB in a single frame time. It uses the NIT readout circuit NSC1101, which is designed to interface with any photodiode array through flip-chip bonding. A logarithmic response is achieved with a patented solar-cell pixel structure. Each pixel operates as a solar cell without noticeable fixed pattern noise; signal response is maintained with changes in illumination.
New Imaging Technologies
Verrières le Buisson, France

-- Posted by Vision Systems Design

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NEW PRODUCT PRESS RELEASE

NIT will participate to the Defense Security and Sensing 2012 in Baltimore, April 23-27, where we will exhibit the World first VGA InGaAS sensor with a dynamic range of 120dB, the NSC1101-SI.

The NSC1101-SI a 640x 512 WDR InGaAs sensor with a 15µm pixel size and provides a dynamic range of more than 120 dB in a single frame time.

The NSC1101-SI uses the NIT Read out Circuit, NSC1101, which is designed to interface with any photodiode array through flip chip bonding. It benefits also from a logarithmic response thanks to a patented solar cell pixel structure.


More information on Native WDR:
Our Native Wide Dynamic Range sensors are based on a new generation of patented CMOS imaging technology, capable of generating a highly stable image even under very wide intra scene dynamic range (>140dB) in a single frame time.

The concept of Native WDR imaging technology is based upon an extremely innovative pixel architecture where each individual pixel operates as a single solar cell. Such a mode of operation provides an intrinsic logarithmic response, without noticeable fixed pattern noise where the signal response is invariant to change of scene illumination.

In addition Native WDR imaging sensors deliver sharp and clear images even at high operating temperature (greater than 90°C) without the creation of pixel artifacts.

Key Features
High dynamic range (>120dB) without compromising low light level performances
No image lag, no smearing, no blooming
Suppression of spatial-temporal light accommodation thanks to Log response
Fully encapsulated imaging module, ideal for System-on-Chip integration
Extreme simplicity of integration: Power in – Image out
Free of hot or flickering pixels even at high temperature

User Benefits
Ease of integration: no complicated register to program
No exposure time to setup
No companion chip or DSP required to produce a wide dynamic range image
Operates without special setup in any light conditions
No illumination saturation
No need for fixed pattern noise correction
Enables high operating temperature applications

SOURCE: New Imaging Technologies (NIT)

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