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laser modulation

A technology of spatial light modulator and light source, applied in the direction of active addressing light modulator, optics, optical components, etc., which can solve the problem of reducing image quality

Active Publication Date: 2022-04-15
DUALITAS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is desirable to reduce this speckle as it degrades image quality

Method used

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Embodiment Construction

[0051] The present invention is not limited to the embodiments described below, but extends to the full scope of the appended claims. That is, the invention may be embodied in different forms and should not be construed as limited to the described embodiments, which are set forth for the purpose of illustration.

[0052] The terms of a singular form may include plural forms unless otherwise specified.

[0053] A structure described as being formed on / under another structure or on / under another structure should be construed to include a case where the structures are in contact with each other, and further, a case where a third structure is disposed therebetween.

[0054] When describing temporal relationships, for example, when the chronological order of events is described as "after," "following," "next," "before," etc., unless otherwise stated, the present disclosure should be considered to include sequential and non-chronological sequences. serial events. For example, the ...

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Abstract

A holographic image generation system is provided, which includes: a spatial light modulator; a light source; a temporal modulator; a light sensor and a demodulator. The spatial light modulator has pixels. The light source is configured to illuminate the spatial light modulator. The temporal light modulator is arranged to modulate the output intensity of the light source over time to encode holographic data representing the hologram. A light sensor is associated with the spatial light modulator. The light sensor is configured to receive light from the light source and generate a signal representative of the output intensity of the light source. The demodulator is connected to the light sensor to receive the signal. The demodulator is arranged to decode the signal to obtain holographic data. The demodulator is also connected to the spatial light modulator to set the pixels of the spatial light modulator according to the holographic data, thereby displaying the hologram ready to be illuminated by a light source to form a holographic reconstruction.

Description

technical field [0001] The present disclosure relates to a system for laser modulation. More specifically, the present disclosure relates to an image generation system for delivering holographic data by laser modulation. Some aspects relate to a holographic projector or holographic projection system that includes an image generation system. Some aspects relate to heads-up displays and head-mounted displays. Some aspects relate to methods of delivering holographic data by laser modulation. Background technique [0002] Light scattered from an object contains amplitude and phase information. This amplitude and phase information can be captured, for example, on a photosensitive plate by well known interferometric techniques to form a holographic record or "hologram" comprising interference fringes. A hologram can be reconstructed by illuminating it with suitable light to form a two- or three-dimensional holographic reconstruction or replay image representing the original ob...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03H1/02G03H1/04
CPCG03H1/02G03H1/04G03H2001/0208G03H2001/0224G03H2001/0428G02F1/13318G03H2001/0212G03H1/0808G03H2001/0816G03H2001/0825G03H1/2286G03H1/32G03H2222/33G03H2222/34G03H2222/23G03H2222/46G03H2225/30G03H2225/52G03H2225/00G03H1/2294G03H2001/2297G02B2027/014G02B2027/0174G03H2226/04G03H2001/0228G03H1/08G03H1/22G03H2001/2244G03H2222/12G03H2225/12G03H1/2205
Inventor J.克里斯特马斯
Owner DUALITAS LTD
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