One-dimensional retroreflective sheet for stereoscopic display of projected light field

A technology of stereoscopic display and projected light, applied in the direction of instruments, etc., can solve the problem of deterioration of one-dimensional retroreflection effect, and achieve the effect of optimizing the retroreflection effect.

Active Publication Date: 2022-05-17
CHENGDU TECH UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] In order to solve the problem that the traditional one-dimensional retroreflective sheet changes with the distance of the projector, and its one-dimensional retroreflective effect deteriorates, the present invention proposes a one-dimensional retroreflective sheet for three-dimensional display of projected light field

Method used

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  • One-dimensional retroreflective sheet for stereoscopic display of projected light field
  • One-dimensional retroreflective sheet for stereoscopic display of projected light field
  • One-dimensional retroreflective sheet for stereoscopic display of projected light field

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Embodiment Construction

[0026] figure 1 The one-dimensional retroreflective sheet for projection light field stereoscopic display provided by this embodiment.

[0027] The one-dimensional retroreflective sheet for projection light field stereoscopic display is composed of a first lenticular lens grating 100 , a slit grating 200 , a second lenticular lens grating 300 and a diffuse reflection layer 400 .

[0028] The first lenticular lens grating 100 , the slit grating 200 , the second lenticular lens grating 300 and the diffuse reflection layer 400 are placed one after the other. The arrangement direction of each rod lens in the first rod lens grating 100 is parallel to the arrangement direction of each slit in the slit grating 200 , and parallel to the arrangement direction of each rod lens in the second rod lens grating 300 . Specifically, the major axis of each cylindrical lens of the first cylindrical lens grating 100 is at y direction, whose cylindrical lens is in x direction; in the slit grat...

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Abstract

In the projected light field stereoscopic display, when the distance from the one-dimensional retroreflective sheet to the projector changes, the one-dimensional retroreflective effect will deteriorate. In order to solve this problem, the present invention proposes a one-dimensional retroreflective sheet for projection light field stereoscopic display. The one-dimensional retroreflective sheet for stereoscopic display of projected light field is composed of a first rod lens grating, a slit grating, a second rod lens grating and a diffuse reflection layer. The first cylindrical lens grating constitutes the first retroreflective structure. The second cylindrical lens grating and the diffuse reflection layer constitute the second retroreflective structure. The one-dimensional retroreflective sheet can optimize the one-dimensional retroreflective effect by using the restraining effect of the slit grating on the light beam and the compound retroreflective structure, so that the one-dimensional retroreflective sheet still has a good performance under the condition that the projector is relatively close. Retroreflection effect.

Description

technical field [0001] The invention belongs to the technical field of projected light field stereoscopic display, and more specifically, the invention relates to a one-dimensional retroreflective sheet for projected light field stereoscopic display. Background technique [0002] Usually, the projected light field stereoscopic display is formed by coupling a parallel array of projectors and a one-dimensional retroreflective screen. The one-dimensional retroreflective curtain can reflect the light back to the position of the projector in the horizontal direction, thereby constructing a three-dimensional display light field. The non-coaxial projection stereoscopic display (CN202111519354.3) in which the normal direction of the one-dimensional retroreflective sheet is consistent and not parallel to the normal of the image plane further enhances the practicability of the projected light field stereoscopic display. However, in non-coaxial projection stereoscopic display, the dis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B30/27
Inventor 赵百川赖莉萍吕国皎
Owner CHENGDU TECH UNIV
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