Invention Grant
- Patent Title: Efficient, dynamic, high contrast lensing with applications to imaging, illumination and projection
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Application No.: US15981069Application Date: 2018-05-16
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Publication No.: US10404957B2Publication Date: 2019-09-03
- Inventor: Gerwin Damberg , James Gregson , Wolfgang Heidrich
- Applicant: MTT INNOVATION INCORPORATED
- Applicant Address: CA Vancouver
- Assignee: MTT Innovation Incorporated
- Current Assignee: MTT Innovation Incorporated
- Current Assignee Address: CA Vancouver
- Agency: Oyen Wiggs Green & Mutala LLP
- Main IPC: H04N5/74
- IPC: H04N5/74 ; H04N9/31 ; G02B26/06 ; G02B27/00 ; G02B27/18 ; G02B27/50 ; G03B21/00

Abstract:
A new projector design combines one spatial light modulator that affects only the phase of the illumination, and one spatial light modulator that only affects its amplitude (intensity). The phase-only modulator curves the wavefront of light and acts as a pre-modulator for a conventional amplitude modulator. This approach works with both white light and laser illumination, generating a coarse image representation efficiently, thus enabling, within a single image frame, significantly elevated highlights as well as darker black levels while reducing the overall light source power requirements.
Public/Granted literature
- US20180270457A1 EFFICIENT, DYNAMIC, HIGH CONTRAST LENSING WITH APPLICATIONS TO IMAGING, ILLUMINATION AND PROJECTION Public/Granted day:2018-09-20
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