New iPhone patent: Can reduce camera red-eye effect

News on March 8, according to media reports, according to the United States Trademark and Patent Office (USPTO), an Apple patent related to the iPhone camera was exposed.

According to the patent, the company will introduce a spatial adjustment lighting curve based on the camera flash module based on the target area identified in the scene. The goal is to eliminate or reduce the "red-eye effect" of the camera.

It is reported that the "red eye" phenomenon occurs because the flash axis of the flash is too close to the optical axis of the lens. When the external light is very dark, the human pupil will correspondingly larger.

When the flash of the flash passes through the pupil and shines on the fundus of the eye, the densely packed micro blood vessels appear bright red under the light and are reflected back, forming a "red spot" phenomenon on the eye.

The new flash module consists of a light array consisting of multiple light emitters, a lens assembly for imaging the light emitter array into the illuminated area, and a flash controller for controlling the multiple light emitters to produce light. .

The flash controller is configured to determine that a portion of the user's face including the user's eyes is located within the lighting area, select a first group of light emitters associated with the eye portion from the plurality of light emitters, and select the first group of light emitters associated with the eye portion from the plurality of light emitters. Select a second set of emitters associated with the area around the eye part, thereby reducing the camera's red-eye effect."

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