Invention Grant
US08444275B2 Light source control for projector with multiple pulse-width modulated light sources
有权
具有多个脉冲宽度调制光源的投影机的光源控制
- Patent Title: Light source control for projector with multiple pulse-width modulated light sources
- Patent Title (中): 具有多个脉冲宽度调制光源的投影机的光源控制
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Application No.: US12854919Application Date: 2010-08-12
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Publication No.: US08444275B2Publication Date: 2013-05-21
- Inventor: Andrew F. Kurtz , Richard P. Corey , Allen D. Bellinger
- Applicant: Andrew F. Kurtz , Richard P. Corey , Allen D. Bellinger
- Applicant Address: US NY Rochester
- Assignee: Eastman Kodak Company
- Current Assignee: Eastman Kodak Company
- Current Assignee Address: US NY Rochester
- Agent Kevin E. Spaulding
- Main IPC: G03B21/20
- IPC: G03B21/20
Abstract:
A color projection display in which at least one color channel includes: a light source assembly including a multiplicity of pulse modulated light sources providing an aggregate light beam; a light modulation control subsystem; illumination optics to direct the aggregate light beam to an image modulation plane; and a spatial light modulator in the image modulation plane. The light modulation control subsystem senses an aggregate light intensity signal for the aggregate light beam and controls the pulse modulation parameters for the multiplicity of pulse-modulated light sources responsive to the sensed aggregate light intensity signal to reduce light intensity fluctuations in the aggregate light beam within the imaging time interval.
Public/Granted literature
- US20120038892A1 LIGHT SOURCE MODULATION FOR PROJECTION Public/Granted day:2012-02-16
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