Invention Grant
- Patent Title: Low-speckle projection screen
- Patent Title (中): 低散斑投影屏
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Application No.: US13866661Application Date: 2013-04-19
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Publication No.: US08687272B1Publication Date: 2014-04-01
- Inventor: Barret Lippey , Ian Turner
- Applicant: Laser Light Engines, Inc.
- Applicant Address: US NH Salem
- Assignee: Laser Light Engines, Inc.
- Current Assignee: Laser Light Engines, Inc.
- Current Assignee Address: US NH Salem
- Agent Barret Lippey
- Main IPC: G03B21/60
- IPC: G03B21/60
Abstract:
A projection screen that reduces speckle by separating reflective flakes by at least 100 micrometers. The reflective flakes are held in a binder material that is coated on a backing layer. In a laser projection system, the separation distance between reflective flakes may be at least twice the coherence length of the laser light.
Information query
