Invention Grant
- Patent Title: Projection subsystem
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Application No.: US15924517Application Date: 2018-03-19
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Publication No.: US10670873B2Publication Date: 2020-06-02
- Inventor: Stephen J. Willett , Craig R. Schardt , David J. W. Aastuen
- Applicant: 3M INNOVATIVE PROPERTIES COMPANY
- Applicant Address: US MN St. Paul
- Assignee: 3M Innovative Properties Company
- Current Assignee: 3M Innovative Properties Company
- Current Assignee Address: US MN St. Paul
- Agent Robert S. Moshrefzadeh
- Main IPC: G03B21/20
- IPC: G03B21/20 ; G02B27/28 ; H04N9/31 ; G02B5/30 ; G02B13/16
Abstract:
Projection subsystems are described. More, particularly, projection subsystems that include a light source and a polarizing beam splitter are described. The polarizing beam splitters of the presently described projection subsystems are capable of avoiding performance degradation even after exposure to large doses of incident light.
Public/Granted literature
- US20180210221A1 PROJECTION SUBSYSTEM Public/Granted day:2018-07-26
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