Design Engineering

High-speed shutter sensor

By DE Staff   

Automation Electronics FRAMOS sensors shutter sensors Sony Semiconductor Solutions

FRAMOS has announced the latest launch from Sony Semiconductor Solutions, a new global shutter sensor based on its Pregius S IMX900.

The Pregius S technology leverages Sony’s experience building CCD-based sensors to produce CMOS-based sensors with very low noise. These global shutter imagers work well in high-speed, high-precision applications like factory automation of assembly lines. From there, they flip the chip upside down to place the pixel array closer to the incoming light, creating a distinct back-illuminated structure that enables for smaller pixel sizes and faster frame rates.

To make it even more compact, they stack the photodiodes on top of the pixel and signal processing circuits. This enables larger pixel arrays that can fit into smaller optical formats. All these factors have created a suite of global shutter sensors that produce high quality, low noise, large resolution images at very high frame rates at lower costs to camera manufacturers and users.

The new IMX900 takes this technology one step further by utilizing a new 2.25-µm pixel architecture where the individual memory units for each pixel are relocated to the signal processing circuit area, below the photodiode. Most traditional global shutter sensors have these memory units placed beside the pixels, which limits the number and size of pixel array. By moving these units below the photodiodes, more and/or larger pixels can now fit into the same area while still maintaining the same saturation capacity. The sensor further improves the incident light angle dependency, allowing for the use of higher aperture lenses without any shading effects.

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The IMX900 was designed with factory automation, AGV/AMR and barcode reading in mind. This 3.2MP, 1/3.1 type imager is available in both color and monochrome formats, and mates nicely with any 1/3” or S-Mount (M12) lens. The sensor supports frame rates of up to 120 fps, higher resolution and double the frame rate of the previous generation IMX296. This keeps camera designs compact which is ideal for handheld applications. On top of this, additional functions can be utilized to further reduce post-processing.

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