Invention Grant
- Patent Title: Holographic direct view display having an apodization device
- Patent Title (中): 具有变迹装置的全息直视图
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Application No.: US14212706Application Date: 2014-03-14
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Publication No.: US09041989B2Publication Date: 2015-05-26
- Inventor: Norbert Leister , Stephan Reichelt
- Applicant: SEEREAL TECHNOLOGIES S.A.
- Applicant Address: LU Munsbach
- Assignee: SEEREAL TECHNOLOGIES S.A.
- Current Assignee: SEEREAL TECHNOLOGIES S.A.
- Current Assignee Address: LU Munsbach
- Agency: Saul Ewing LLP
- Priority: DE102008002692 20080626
- Main IPC: G02B5/32
- IPC: G02B5/32 ; G03H1/08 ; G03H1/22

Abstract:
The invention relates to apodization in a holographic direct view display. Known apodization functions are utilized/modified for an apodization mask such that the functions reduce the intensities of selected higher magnitudes of diffractions. The holographic direct view display comprises a controllable light modulator having modulator cells and modulating impinging coherent light into a phase and/or amplitude, and an array of apodization masks. The apodization masks have the same apodization function for a predetermined group of modulator cells, by means of which function a complex amplitude transparency can be set for the modulator cells. This transparency corresponds to an individually predefined course of intensity in a far field of the light modulator, wherein the predefined course of intensity includes a reducing of the light intensity of higher magnitudes of diffractions, and/or of the interfering light emitted by the light modulator.
Public/Granted literature
- US20140198361A1 HOLOGRAPHIC DIRECT VIEW DISPLAY HAVING AN APODIZATION DEVICE Public/Granted day:2014-07-17
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