The dynamic range is close to the human eye! Domestic manufacturer Haowei releases OV50K40 sensor: the first LOFIC technology

News on March 19, domestic manufacturer Howey recently released the OV50K40 sensor, which is the world’s first smartphone image sensor using TheiaCe technology. A single exposure can achieve a dynamic range close to the human eye level.

OV50K40 has native 50 million pixels, a 1/1.3-inch outsole, a pixel area of ​​up to 1.2 microns, and supports four-in-one pixel output of 12.5 million pixels, bringing stronger photosensitivity.

The frame rate supports 120 frames/second and 60 frames/second (HDR), enabling complete 50-megapixel Bayer output, high-quality 8K video and 2x crop zoom function.

Supports Quad Phase Detection (QPD) function, which can achieve 2x2 Phase Detection Autofocus (PDAF) on the entire image array of the sensor, with 100% coverage, achieving ultra- Fast autofocus performance.

The biggest highlight of this sensor is the adoption of Lateral Overflow Integrating Capacitor (LOFIC) technology. The basic principle is to place a high-density capacitor on each photodiode of the mobile phone image sensor to collect what would otherwise be Saturated and overflowing photoelectrons.

When the number of photoelectrons converted by the photodiode exceeds the maximum capacity it can originally carry, the excess photoelectrons will flow into the adjacent capacitor and will not be blocked due to overflow. "Overexposed".

This allows the highlight information in the shooting scene to be better retained by the sensor, making the output film closer to the real light and shadow scene, and achieving ultra-high dynamic range.

The look and feel of photos taken by professional SLRs are excellent, largely because of the higher dynamic range, which can restore the colors, light and shadows seen by the human eye as much as possible and other effects, and the launch of OV50K40 has given mobile phones the ability to compete with SLRs.

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