Omnivision builds image sensor with 1.1-micron pixels

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Beeldsensorfabrikant Omnivision has a new image sensor developed with a pixel size of only 1.1 microns. The 1/4″cmos sensor shoots images of eight megapixels and fits in a camera module of 8,5×8,5×4,7mm.

The OV8550-sensor makes use of Ominivisions new OmniBSI-2-pixelarchitectuur. This has a pixel size of 1.1 microns, compared to 1.4 microns for the previous generation. Both OmniBSI as with OmniBSI-2 is the principle of backside illumination is applied: this is the bedradingslagen behind the fotodiodes, so that more light can absorb. According to Omnivision, the new sensor and the new pixelarchitectuur it possible for mobile phones to further reduce.

Although smaller pixels, in principle, less sensitive to light, would the technical improvements ensure that the quality is gone. So would the OmniBSI-2-pixelarchitectuur in all color channels, twenty percent more efficient and would the light sensitivity in low light with 35 percent. Omnivision says in addition that the full well capacity of the pixels with 45 percent have managed to increase. That is an indication of the dynamic range of a sensor.

The sensor is equipped with an integrated temperature sensor. Also, the new chip the odd and even pixelrijen separate exposure for hdr shots. Furthermore, it supports the so-called OV8550 1080/30p video and it is a so-called binning of pixels to 720/60p video with electronic image stabilization to take.

The first samples of the OV8850 come in July and mass production will in the first quarter of 2012. Omnivision is the supplier of the camera in the iPhone 4.

The competition is Omnivision, incidentally, on the heels: among other aptina is offering is also working on sensors with a 1.1-micron pixels. That company showed his pixeltechnologie already at the Mobile World Congress earlier this year in Barcelona was held. Aptina is offering would be the first sensorsamples on the basis of this technology is still available this year.