Invention Grant
- Patent Title: Projection unit and method of controlling a first light source and a second light source
- Patent Title (中): 投影单元和控制第一光源和第二光源的方法
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Application No.: US13078758Application Date: 2011-04-01
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Publication No.: US08740395B2Publication Date: 2014-06-03
- Inventor: Douglas Blair Hill , Jackson Chan
- Applicant: Douglas Blair Hill , Jackson Chan
- Applicant Address: CA
- Assignee: SMART Technologies ULC
- Current Assignee: SMART Technologies ULC
- Current Assignee Address: CA
- Agency: Katten Muchin Rosenman LLP
- Main IPC: G03B21/26
- IPC: G03B21/26
Abstract:
A projection unit comprises a first light source outputting light that is used to project an image during normal projection unit use, and a second light source outputting light of a different intensity that is used to project an image outside of normal projection unit use.
Public/Granted literature
- US20120249410A1 PROJECTION UNIT AND METHOD OF CONTROLLING THE SAME Public/Granted day:2012-10-04
Information query
