Invention Grant
- Patent Title: Projector apparatus which controls pulse widths of light beams emitted from pulse-driven light sources of different colors based on deterioration levels thereof
- Patent Title (中): 基于其劣化程度来控制从不同颜色的脉冲驱动光源发射的光束的脉冲宽度的投影仪装置
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Application No.: US12562297Application Date: 2009-09-18
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Publication No.: US08210691B2Publication Date: 2012-07-03
- Inventor: Mamoru Shibasaki
- Applicant: Mamoru Shibasaki
- Applicant Address: JP Tokyo
- Assignee: Casio Computer Co., Ltd.
- Current Assignee: Casio Computer Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Holtz, Holtz, Goodman & Chick, PC
- Priority: JP2008-245247 20080925
- Main IPC: G03B21/20
- IPC: G03B21/20 ; G01J1/32
Abstract:
A projector apparatus includes a light source configured to emit light beams of a plurality of color components, emissions of the light beams being controlled individually, a projection unit configured to form images respectively corresponding to the color components using the light beams from the light source for each frame and to sequentially project the images, a driving unit configured to drive the light source so that the light beams are emitted as light pulses having respectively predetermined pulse widths for a period in which the projection unit projects each of the images, a detector configured to detect deterioration levels of the light source respectively for the color components, and a controller configured to control the pulse widths of the light beams emitted from the light source based on the deterioration levels.
Public/Granted literature
- US20100073639A1 PROJECTOR APPARATUS USING PULSE-DRIVEN LIGHT SOURCES OF DIFFERENT COLORS Public/Granted day:2010-03-25
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