Etendue reduced stereo projection using segmented disk

A technology of stereoscopic and projection systems, applied in optics, stereoscopic systems, optical components, etc., to achieve the effect of reducing heat load, low heat load, and reducing transition time

Inactive Publication Date: 2012-05-23
IMAX THEATERS INT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0024] It is an object of the present invention to address the need for stereoscopic imaging using MEMS-based digital spatial light modulators such as DLP and related microdisplay spatial light modulator devices

Method used

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  • Etendue reduced stereo projection using segmented disk
  • Etendue reduced stereo projection using segmented disk
  • Etendue reduced stereo projection using segmented disk

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Embodiment Construction

[0067] The description relates in particular to elements which form part of, or more directly co-operate with, a device according to the invention. It is to be understood that elements not specifically shown or described may take various forms well known to those skilled in the art.

[0068] The drawings shown and described herein are for illustrating the principles of operation according to the present invention and may not be drawn to show actual size or scale. Due to the relative sizes of the components of the laser array used in the present invention, some exaggeration is necessary to emphasize the basic structure, shape and principles of operation. The terms first, second, etc., when used to describe elements in various embodiments, do not denote any particular order or importance, but are used more generally to distinguish one element from another.

[0069] In the following disclosure, the phrase "left-eye image" means an image formed by a stereoscopic display device an...

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Abstract

A stereoscopic digital image projecting system has a light source system energizable to provide polarized illumination having a first polarization state and a beam splitting system alternately generating first and second light beams having different polarization states from the polarized illumination. A combining system has a polarization beam combiner that combines the first and second light beams into a combined light beam. A spatial light modulator is used to modulate the combined light beam in a manner consistent with stereoscopic image data to form a first modulated image from illumination in the combined light beam having the first polarization state and to form a second modulated image from illumination in the combined light beam having the second polarization state. Projection optics are configured to project the first and second modulated images onto a display surface.

Description

technical field [0001] The present invention relates to an apparatus for projecting stereoscopic digital images and, more particularly, to an improved apparatus and method for digital cinema projection using polarized solid-state lasers to produce stereoscopic images. Background technique [0002] In large venues, there is an increasing focus on high-quality projection systems for displaying three-dimensional (3D) or perceived stereoscopic content in order to provide consumers with a more powerful visual experience. Although many entertainment companies have provided stereoscopic content in movie theaters, theme parks, and other venues, these companies primarily use the film medium to present stereoscopic images. To produce stereoscopic images, two sets of films are loaded into two separate projection units, one for each eye. Then, the left-eye and right-eye images are simultaneously projected using polarized light. One polarization is used for the image presented to the l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N13/00G02B27/26H04N5/74G02B30/25H04N13/363
CPCG02B19/0057G02B19/0028G02B26/008G02B27/145G02B27/143G02B27/1033G02B27/26H04N9/3161G02B27/141G02B27/0922H04N13/0459H04N13/0434H04N13/0438H04N13/337H04N13/341H04N13/363G02B30/25
Inventor B·D·希尔弗斯坦J·R·基尔舍J·R·比耶特里
Owner IMAX THEATERS INT
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