Toshiba Develops Mobile Sensor

Toshiba has created a new image sensor for mobile phones and tablets that promises better image resolution for run-of-the-mill smartphones when it goes into mass production.

The T4KA7 is a 1/2.4-inch, 20-megapixel backside illuminated sensor with a 1.12 micrometer pixel size, which provides for a smaller sensor size overall.

The sensor allows for a lower module height of under 6 millimeters compared to the current 20-megapixel, 1.2-micrometer sensors, the company said.

“T4KA7 is the first 1.12-micrometer, 20-megapixel sensor on the market with a high frame rate of 22 fps at full resolution,” a Toshiba spokeswoman wrote in an email.

The frame rate is 1.8 times the speed of Toshiba’s previous 20-megapixel sensor, the T4K46.

When zooming digitally, the sensor provides crisper images compared to 13- and 16-megapixel sensors, which are resolutions widely adopted in recent smartphones, she added.

Announced earlier this year, Samsung’s camera-phone hybrid Galaxy K zoomhas a 20.7-megapixel image sensor that is supposed to perform well when taking photos in low-light settings.

Without a specific measurement for comparison, it’s hard to say whether the T4KA7 would do any better in low-light shooting situations than other sensors, the Toshiba spokeswoman said.

“We think we are providing top-class sensors in terms of pixel performance,” she added.

Toshiba is producing samples of its new sensors now, with mass production of up to half a million units per month to begin in November.

Higher-end smartphones already featuring 20-megapixel cameras include the Sony Xperia Z1, the Nokia Lumia 930 and 1520.

Announced last month, the Nokia Lumia 1020 sports a camera designed for photographers — it has a sensor with 41-megapixel resolution.

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Toshiba To Offer A 20-megapixel Image Chip

Toshiba is gearing up for to offer a 20-megapixel image sensor for digital cameras that it says will be the highest resolution of its kind.

The Tokyo-based firm said the new chips will be able to support capturing 30 frames per second at full resolution. They will also be able to shoot video at 60 frames per second at 1080P or 100 frames at 720P.

Toshiba said it will begin shipping samples of the new CMOS chips in January, with mass production to begin in August of 300,000 units monthly. Toshiba is best known in components for its NAND flash memory, which it develops with partner SanDisk, but is also a major manufacturer of LSI and other semiconductors.

Digital point-and-shoot cameras are steadily falling in price, squeezed between brutal competition among manufacturers and the increasing threat of smartphones and mobile devices. While the number of pixels a camera can capture is not always a direct measure of the overall quality of its images, it is a key selling point to consumers.

The image resolution of top-end smartphones now often meets or exceed that of digital cameras. The Nokia 808 PureView launched earlier this year has a 41-megapixel image sensor.

The Japanese manufacturer said it has increased the amount of information pixels in the new chip can store compared to its previous generation of CMOS, producing better overall images. It has also reduces the size of pixels – the new 20-megapixel version has individual pixels that measure 1.2 micrometers, down from 1.34 micrometers in its 16-megapixel product.

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