Invention Grant
- Patent Title: Image projection apparatus including light modulation elements
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Application No.: US16059583Application Date: 2018-08-09
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Publication No.: US10564528B2Publication Date: 2020-02-18
- Inventor: Hiroyuki Kodama , Takehito Kawasumi , Yuuki Maeda
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Rossi, Kimms & McDowell LLP
- Priority: JP2017-154904 20170810
- Main IPC: G03B21/00
- IPC: G03B21/00 ; H04N9/31 ; G02B27/09 ; G03B21/20 ; G09G3/00

Abstract:
An image projection apparatus includes a first light modulation element configured to modulate a first light emitted from a light source and to generate a second light, and a second light modulation element configured to modulate the second light. The first light modulation element is configured to receive the first light onto a modulable pixel area that can modulate the first light, the modulable pixel area including an effective pixel area that can modulate the first light and a peripheral pixel area arranged at the periphery of the effective pixel area. The image projection apparatus further comprises a controller configured to control pixels of the peripheral pixel area such that light from the peripheral pixel area does not reach the second light modulation element.
Public/Granted literature
- US20190049825A1 IMAGE PROJECTION APPARATUS Public/Granted day:2019-02-14
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