Invention Grant
- Patent Title: Beam divergence and various collimators for holographic or stereoscopic displays
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Application No.: US15191596Application Date: 2016-06-24
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Publication No.: US10295959B2Publication Date: 2019-05-21
- Inventor: Gerald Futterer
- 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 Arnstein & Lehr LLP
- Priority: DE102010031024 20100706; DE102010043191 20101029; WOPCT/EP2011/054660 20110325
- Main IPC: F21V8/00
- IPC: F21V8/00 ; G02B5/32 ; G03H1/02 ; G03H1/08 ; G03H1/22 ; G03H1/30 ; G02B27/00 ; G02F1/1334 ; G02F1/1335 ; G02F1/1362

Abstract:
A holographic display with an illumination device, an enlarging unit and a light modulator. The illumination device includes at least one light source and a light collimation unit, the light collimation unit collimates the light of the at least one light source and generates a light wave field of the light that is emitted by the light source with a specifiable angular spectrum of plane waves, the enlarging unit is disposed downstream of the light collimation unit, seen in the direction of light propagation, where the enlarging unit includes a transmissive volume hologram realizing an anamorphic broadening of the light wave field due to a transmissive interaction of the light wave field with the volume hologram, and the light modulator is disposed upstream or downstream of the anamorphic enlarging unit, seen in the direction of light propagation.
Public/Granted literature
- US20160313695A1 BEAM DIVERGENCE AND VARIOUS COLLIMATORS FOR HOLOGRAPHIC OR STEREOSCOPIC DISPLAYS Public/Granted day:2016-10-27
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