Optical device, particularly for tuning the focal length of a lens of the device by means of optical feedback

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12253744
APP PUB NO 20200379275A1
SERIAL NO

16900927

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Abstract

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The invention relates to an optical device, comprising: a lens having an adjustable focal length. According to the invention, a light source which is configured to emit light that is affected by said lens and impinges on at least a first photosensitive element, which is designed to generate a first output signal corresponding to the intensity of light impinging on it, wherein the first photosensitive element is configured to measure only a portion of the intensity distribution of said emitted light, and wherein the light source, the lens and the first photosensitive element are configured such that a change of the focal length of said lens changes the intensity distribution of the emitted light that impinges on the first photosensitive element, so that each focal length of the lens is associated to a specific first output signal generated by the first photosensitive element.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Aschwanden, Manuel Allenwinden, CH 77 545
Borer, Daniel Schlieren, CH 6 50
Bueeler, Michael Vogelsang, CH 8 185
Laning, Christopher Windisch, CH 13 53
Niederer, David Kuttigen, CH 26 417
Patscheider, Roman Winterthur, CH 29 122

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