Projector and stereoscopic image system
A projector and projection lens technology, applied in the field of projection, can solve problems such as inability to watch stereoscopic images
Active Publication Date: 2012-07-18
深圳市北斗云科技发展有限公司
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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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[0066] 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 stereoscopic image system, which is applied to the technical field of projection. The projector utilizes a polagizing filter to generate polarized image signal light rays alternated in the frequency of 120 frame per second according to the set time, and image frames are alternated in sequence; a projecting lens converts the polarized image signal light rays into the new polarized image signal light rays parallel in vibration directions and unchanged in polarizing frequencies, when the new polarized image signal light rays are reflected to polarized glasses through a projecting screen, the vibration direction is unchanged, the watcher can only watch the corresponding image through the left lens and the right lens of the polarized glasses, namely the watcher receives a left eye frame, a right eye frame, a left eye frame, a right eye frame and so on in sequence, so as to produce a three-dimensional feeling in the visual nerve system, as a result, the purpose of watching the three-dimensional images through the 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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IPC IPC(8): G03B35/22G02B27/26G02F1/13363G02F1/133G02B30/25H04N13/363
CPCG02B27/26H04N13/0459H04N13/0438G02F1/13363G03B35/22G02F1/133H04N13/341H04N13/363G02B30/25
Inventor 刘美鸿
Owner 深圳市北斗云科技发展有限公司