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Reflective optical system, tracking system and holographic projection system and method

A reflective optics and optics technology, applied in the field of holographic projection, can solve problems such as unrealizable components, and achieve the effect of improving flexibility and reducing complexity

Inactive Publication Date: 2009-07-22
SEEREAL TECHNOLOGIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Electrically Addressable Spatial Light Modulators (EASLMs) as Controllable Diffractive Optical Elements (DOEs) have a large number of small pixels due to their large size and the large diffraction angles required, making them technically impossible to implement

Method used

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  • Reflective optical system, tracking system and holographic projection system and method
  • Reflective optical system, tracking system and holographic projection system and method
  • Reflective optical system, tracking system and holographic projection system and method

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Embodiment Construction

[0033] The reflective optical system 10 , 11 according to the invention comprises deflection elements 12 , 13 and reflective elements 14 , 15 . The light waves striking the reflective elements 14 , 15 are reflected and their optical paths are further altered by the deflection elements 12 , 13 . This deflection may include correction of aberrations and changes in the direction of propagation of the light waves.

[0034] 1 a is a top view showing the design of the deflecting element 12 and the reflecting element 14 of a reflective optical system 10 according to a first embodiment of the invention, with an optically addressable spatial light modulator (OASLM) comprising a diffractive structure as deflecting element 12 and a static elementary mirror as reflective element 14 . The base mirror 14 can be, for example, a metal mirror with a reflective surface.

[0035] The OASLM 12 placed in front of the basic mirror 14 as viewed from the focal point comprises a first glass plate 16...

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Abstract

The invention relates to a reflective optical system (10, 11) which comprises a reflective element (14, 15) for reflecting reconstruction light waves, a focal point of incidence (28) from which reconstruction light waves are incident on the reflective element (14, 15), and a focal point of reflection (26) towards which the reconstruction light waves reflected by the reflective element (14, 15) propagate. The invention also relates to a tracking system and a holographic projection system comprising the reflective optical system of the above type and to a corresponding holographic projection method. The aim of the invention is to provide a reflective optical system (10, 11) of the above type which allows an aberration correction and tracking of the visibility range and a higher degree of reconstruction. For this purpose, the reflective optical system (10, 11) according to the invention comprises a deflection element (12, 13) with optically controlled deflection properties and a deflection control (42, 43) for optically controlling the deflection properties of the deflection element (12, 13) for controlling the position of at least the focal point of reflection (26) of the reflective optical system (10, 11).

Description

technical field [0001] The present invention relates to a reflective optical system having a reflective element for reflecting a reproduction light wave, an incoming focal point from which the reproduced light wave emerges when it hits the reflective element, and an outgoing focal point to which the reproduction light wave reflected by the reflective element propagates. The invention further relates to a tracking system and a holographic projection system with such a reflective optical system and a corresponding holographic projection method. Background technique [0002] The holographic projection device modulates sufficiently coherent light through the spatial light modulation device. Due to the interference of the light, object points of light reproducing the optical appearance of the scene are produced in the space in front of, above and behind the surface of the light modulator. The light of all object points of light propagates in the form of light wavefronts, so that...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/22G03H1/08G03H1/22H04N13/00G02F1/135
CPCG02F1/1354G02F2203/50G03H1/2205G02B27/4211G03H1/22G02B27/225G03H1/2294G02B5/32G02F2203/01G02B27/0068G02B27/0037G02B27/4294G02F2203/12G02B26/08G03H1/08G02B27/18G02F1/135
Inventor 阿明·史威特纳
Owner SEEREAL TECHNOLOGIES