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Sony patents light sensor that adjusts for temperature changes

Patent drawing
Patent drawing from the official filing.

Sony describes a light sensor that includes a photodiode to measure light and a control circuit. The circuit changes the voltage at one end of the sensor based on its temperature to keep measurements accurate.

Why it mattersThis helps maintain consistent light readings in devices like cameras or displays, which is a standard improvement for sensor reliability.

In the filing’s own words

Photodetection elements with suppressed decrease in measurement accuracy due to temperature change are disclosed. In one example, a photodetection element includes a photodiode that photoelectrically converts incident light and outputs a photocurrent; and a control circuit that performs control to change a potential of one end of the photodiode according to a temperature related to the photodiode.

What exactly they claim (claim 1)

1. A photodetection element comprising: a photodiode that photoelectrically converts incident light and outputs a photocurrent; and a control circuit that performs control to change a potential of one end of the photodiode according to a temperature related to the photodiode.

Facts

Company
Sony (Sony Semiconductor Solutions Corporation)
Official title
PHOTODETECTION ELEMENT AND ELECTRONIC APPARATUS
Publication number
US20260323184A1
Application number
19114626
Filed
Sep 29, 2023
Published
Oct 15, 2026
Inventors
5
Claims
20

Classified under

H04N 25/773 Electricity & electronics
Read the full filing (official PDF) ↗ Open in the Patent Tracker

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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.