Invention Grant
- Patent Title: Intensity-based one-way visible display system
- Patent Title (中): 基于强度的单向可见显示系统
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Application No.: US12203521Application Date: 2008-09-03
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Publication No.: US07808713B2Publication Date: 2010-10-05
- Inventor: Cang V. Quach , Donald L. Alvarez
- Applicant: Cang V. Quach , Donald L. Alvarez
- Applicant Address: US CA San Francisco
- Assignee: Emiscape, Inc.
- Current Assignee: Emiscape, Inc.
- Current Assignee Address: US CA San Francisco
- Agency: Patent Law Group LLP
- Agent David C. Hsia
- Main IPC: G02B27/10
- IPC: G02B27/10 ; G02B27/14

Abstract:
A one-way display system includes a partially reflective screen with a first image, and a partially absorptive screen with a second image that is an inverse of the first image. The two screens can be stacked on top of each other or separated by a small distance. A portion of ambient light on a first side of the display system passes through the partially reflective screen and exits as intermediate light. A portion of the intermediate light passes through the partially absorptive screen and exits as transmitted light to a second side of the display system. The transmitted light is spatially and chromatically uniform like the ambient light. This allows observers on the second side to see objects on the first side without the first image, and observers on the first side to see the first image.
Public/Granted literature
- US20100053762A1 Intensity-Based One-Way Visible Display System Public/Granted day:2010-03-04
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