Toshiba has a new 1/3″image sensor for smartphones and tablets has been developed with a resolution of 13 megapixels. The pixels have a size of 1.12 ám, and are structured according to the bsi method. The sensor is equipped with circuitry for the reduction of color noise.
In bsi sensors, the metal bedradingslagen under the light-sensitive surface, allowing more light on the fotodiodes and smaller pixels are possible. A disadvantage is, however, that the separation of the subpixels is less than image sensors with a conventional structure.
To resolve this problem is to catch, Toshiba has its new bsi sensor with a pixel size of 1.12 µm feature of integrated circuits for the reduction of color noise. The Color Noise Reduction hardware on the sensor compares successive frames to the color noise to filter out. Toshiba claims that this allows the signal-to-noise ratio of the new sensor one and a half times higher than that of a sensor with similar pixel size, but without the CNR-circuits.
The sensor, with the model number T4K37, fits in a module 8.5 8.5 millimeters and as of december available for a bulkprijs of $ 20. On the basis of the same pixeltechnologie Toshiba will in January also a 1/4″sensor with 8 megapixels, and in march a 1/7″-variant with a full hd resolution introduce.
