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Samsung patents projector that adjusts brightness using two sensors

Samsung describes a projector that uses both a light sensor and a camera to measure how bright the projected image appears. The device switches between using just the camera or both sensors to adjust brightness depending on the surrounding light level.

Why it mattersThis approach aims to keep projected images consistently bright by reacting to changes in room lighting.

In the filing’s own words

A projector includes a projection unit to project an image, an illuminance sensor for sensing illuminance, an image sensor configured to capture the projected image, a memory to store a reference illuminance value, and a processor. The processor controls the projection unit to project the image onto a projection surface, adjusts the amount of light of the projection unit based on image-capture data related to the captured image obtained from the image sensor based on a sensed illuminance value of the sensed illuminance being less than the reference illuminance value, and adjusts the amount of light of the projection unit based on the sensed illuminance obtained from the illuminance sensor and the image-capture data obtained from the image sensor based on the sensed illuminance value being greater than or equal to the reference illuminance value.

What exactly they claim (claim 1)

1. A projector comprising: a projection unit to project an image; an illuminance sensor configured to sense illuminance; an image sensor configured to capture the projected image; a memory to store a reference illuminance value; and a processor, wherein the processor is configured to: control the projection unit to project the image onto a projection surface; adjust an amount of light output from the projection unit based on image-capture data related to the captured image obtained from the image sensor based on a sensed illuminance value of the sensed illuminance being less than the reference illuminance value; and adjust an amount of light output from the projection unit based on the sensed illuminance obtained from the illuminance sensor and the image-capture data obtained from the image sensor based on the sense illuminance value being greater than or equal to the reference illuminance value.

Facts

Company
Samsung (SAMSUNG ELECTRONICS CO., LTD.)
Official title
PROJECTOR AND CONTROL METHOD THEREFOR
Publication number
US20260261638A1
Application number
19655091
Filed
Apr 22, 2026
Published
Sep 3, 2026
Inventors
1
Claims
15

Classified under

H04N 9/3194 Electricity & electronicsH04N 9/3155 Electricity & electronicsH04N 9/317 Electricity & electronicsH04N 9/3185 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.