Ambient Light Sensors With Controlled Angular Responses
AssigneeApple Inc.
InventorPo-Chieh Hung
Life of this patent
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AssigneeApple Inc.
InventorPo-Chieh Hung
Estimating the term…
An electronic device may include an ambient light sensor. An angular-response controller may overlap the ambient light sensor and may have regions with adjustable transparency to control an angular response of the ambient light sensor. In particular, the angular-response controller may include two light modulator layers, such as liquid crystal layers. Each of the light modulator layers may have transparent portions and opaque portions. To allow on-axis light to pass through to the ambient light sensor while blocking off-axis light, the transparent portions of the two layers may be aligned, and the opaque portions of the two layers may be aligned. In contrast, to allow off-axis light while blocking on-axis light, the opaque portions of the two layers may be offset. The light modulator layers may be adjusted in response to measurements from the ambient light sensor or other sensors in the device, such as motion or orientation sensors.
An electronic device, comprising:
An ambient light sensor module, comprising:
An electronic device, comprising:
Dependencies are inferred from the claim text.