Projector, stereoscopic image system
A technology for projectors and polarized images, which is applied in the field of projection and can solve problems such as the inability to watch stereoscopic images
Inactive Publication Date: 2012-10-10
SHENZHEN ESTAR DISPLAYTECH
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[0024] Stereoscopic projection is realized through the principle of light polarization. The existing scheme to realize stereoscopic projection is to use two projectors to project images synchronously, and make the polarization directions of the polarizers in front of the two projectors perpendicular to each other, so that the generated two The polarization directions of the polarized light beams are also perpendicular to each other, and the polarized light direction will not change when the polarized light is projected to the special projection screen and then reflected to the viewer's position. The viewer can only see the corresponding polarized light through the left and right eyes of the polarized glasses image, thereby generating a stereoscopic sensation in the visual nervous system to achieve the purpose of viewing stereoscopic images. The prior art cannot achieve the purpose of viewing stereoscopic images through a projector
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[0064] The invention provides a projector and a stereoscopic image system, which are applied in the field of projection technology. The projector of the invention uses a polarizing filter to generate alternately polarized image signal light at a predetermined time such as 120 frames per second, and each image frame is alternated in sequence. , then the projection lens converts the polarized image signal light into a new polarized image signal light whose vibration direction is parallel and the polarization frequency is unchanged, and the vibration direction of the light is different when the new polarized image signal light is reflected from the projection screen to the polarized glasses It will change, the viewer can only see the corresponding image through the left lens and the right lens of the polarized glasses, that is, the viewer receives a left-eye frame through the polarized glasses, then a right-eye frame, then a left-eye frame, and then Another frame for the right eye...
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The invention discloses a projector and a stereoscopic image system which are applied to the field of projection technology. According to the projector, a polarizing filter is applied to generate polarization image signal light which is alternated in the frequency such as 120 frames per second, each image frame is sequentially alternated, then a projection lens converts the polarization image signal light into new polarization image signal light whose directions of vibration are parallel and polarization frequency is constant, when the new polarization image signal light is reflected to polarized glasses via a projection screen, the directions of vibration of the light are not changed, a viewer only can see corresponding images through left and right lenses of the polarized glasses, only to see the corresponding image, namely the viewer receives a left eye frame, then a right eye frame, another left eye frame and another right eye frame through the polarized lens, thus a stereoscopic feeling is generated in a visual nervous system, a purpose of viewing a stereoscopic image is achieved, and a purpose of viewing the stereoscopic image through a single projector is achieved.
Description
technical field [0001] The invention relates to the technical field of projection, in particular to a projector and a stereoscopic image system. Background technique [0002] A projector is a device used to project image signal light onto a projection screen for imaging. Existing projectors include digital light processing (DLP) projectors, liquid crystal on silicon (LCOS) projectors, liquid crystal (LCD) Projector. [0003] See figure 1 , is a schematic diagram of an existing projector, and the projector 100 includes: [0004] an image signal processing device 101, configured to generate image signal light; [0005] The projection lens 102 is arranged on the transmission path of the image signal light generated by the image signal processing device 101, and is used for projecting the generated image signal light to a projection screen for imaging. [0006] See figure 2 , is a schematic diagram of an embodiment of an existing digital light processing projector, the dig...
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Login to View More IPC IPC(8): G03B35/22G02B27/26G02F1/13363G02F1/133G02B30/25
Inventor 刘美鸿
Owner SHENZHEN ESTAR DISPLAYTECH