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Projection system based on phase delay component

A phase delay and projection system technology, applied in optical components, instruments, projection devices, etc., can solve the problem of the overall length of the system, and achieve the effect of facilitating communication and reducing the length

Pending Publication Date: 2021-12-07
NINGBO SUNNY AUTOMOTIVE OPTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the ordinary film solution can only project one pattern, and requires multiple lens combinations to make the overall length of the system lengthy; although the double-sided microlens array solution can realize compact and small-volume vehicle projection, the projected pattern can still only be one kind

Method used

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  • Projection system based on phase delay component
  • Projection system based on phase delay component
  • Projection system based on phase delay component

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Embodiment Construction

[0047] For a better understanding of the application, various aspects of the application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are descriptions of exemplary embodiments of the application only, and are not intended to limit the scope of the application in any way. Throughout the specification, the same reference numerals refer to the same elements. The expression "and / or" includes any and all combinations of one or more of the associated listed items.

[0048] It should be noted that in this specification, expressions of first, second, etc. are only used to distinguish one feature from another, and do not represent any limitation on the features. Thus, a first material discussed hereinafter could also be termed a second material without departing from the teachings of the present application.

[0049] In the drawings, the thickness, size and shape of components may have been slig...

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Abstract

A projection system of the present invention comprises a light source array for emitting light for projection; a light modulation element which is located on a light path of the light emitted by the light source array and is used for modulating the light emitted by the light source array, wherein the light modulation element comprises a substrate made of a transparent material or a semitransparent material; and a DOE array formed on the substrate and including phase delay members of different shapes and configurations for generating different phase delays to the incident light, thereby projecting a pattern.

Description

technical field [0001] The present invention relates to a vehicle-mounted projection system, and in particular, the present application relates to a projection system based on a phase delay component. Background technique [0002] In vehicle applications, different patterns need to be projected in the distance to facilitate communication between drivers and passengers. The scheme of the traditional vehicle projection pattern is composed of film sheets. However, the ordinary film solution can only project one pattern, and requires multiple lens combinations to make the overall length of the system lengthy; although the double-sided microlens array solution can realize compact and small-volume vehicle projection, the projected pattern can still only be one kind. [0003] With the development of vehicle-mounted projection systems, people have put forward higher and higher requirements for the miniaturization and dynamics of projection solutions. In order to reduce the length...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/20G02B27/42
CPCG03B21/2073G02B27/4205
Inventor 吴尚亮陈俊逸谢前森
Owner NINGBO SUNNY AUTOMOTIVE OPTECH