Invention Grant
- Patent Title: Methods and apparatus for implementing and/or using camera devices with one or more light redirection devices
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Application No.: US15195985Application Date: 2016-06-28
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Publication No.: US10365480B2Publication Date: 2019-07-30
- Inventor: Rajiv Laroia , Sapna A Shroff , James Schmieder
- Applicant: LIGHT LABS INC.
- Applicant Address: US CA Redwood City
- Assignee: LIGHT LABS INC.
- Current Assignee: LIGHT LABS INC.
- Current Assignee Address: US CA Redwood City
- Agency: Straub & Straub
- Agent Michael P. Straub; Stephen T. Straub
- Main IPC: G02B27/00
- IPC: G02B27/00 ; G03B17/02 ; H04N5/217 ; H04N5/232 ; H04N5/225 ; G02B17/00 ; H04N5/247 ; H04N5/262

Abstract:
Methods and apparatus relating to a camera including one or more optical chains with a light redirection device, e.g., mirror, and an outer protective cover are described. The cover maybe a flat or sloped surface or a lens. Features avoid stray light rays from reaching an image sensor of an optical chain. In some but not all embodiments a 2-sided anti-reflection coating is used on the cover to avoid or reduce back reflections from the cover into the optical system. In some embodiments mirror angles are limited to a range in which stray light reflections are directed away from the camera module. In some embodiments a tilted cover configuration is used where the cover is sloped relative to a face of the camera and/or camera module. Different features such as the sloped cover glass, control of mirror angle, and/or antireflective coating can be used alone or in combination.
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