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Projection system and preparation method thereof

A projection system and projection technology, applied in the field of optical components, can solve the problems of reducing the working efficiency of the projection system, achieve the effect of ensuring thinness, simple structure, and avoiding the decline of working efficiency

Pending Publication Date: 2022-08-09
NINGBO SUNNY AUTOMOTIVE OPTECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, changing the shape of the light spot projected by the projection system through the above scheme will reduce the working efficiency of the projection system

Method used

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  • Projection system and preparation method thereof
  • Projection system and preparation method thereof
  • Projection system and preparation method thereof

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Embodiment Construction

[0067] For a better understanding of the present application, various aspects of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely illustrative of exemplary embodiments of the present application and are not intended to limit the scope of the present 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.

[0068] It should be noted that in this specification, the expressions first, second, third etc. are only used to distinguish one feature from another feature and do not imply any limitation on the feature. Thus, for example, the first lighting unit discussed below may also be referred to as a second lighting unit without departing from the teachings of the present application. vice versa.

[0069]...

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Abstract

The invention provides a projection system and a preparation method thereof. The projection system comprises a light source module, a special-shaped projection surface and a shaping module. The light source module is used for generating emitted light. The shaping module is arranged on the light path of the emitted light, located between the light source module and the special-shaped projection plane and comprises a plurality of sub-lenses, and the shape of the projection of the sub-lenses in the light path direction is the same as or corresponds to the shape of the special-shaped projection plane so that the projection of the sub-lenses in the light path direction can be the same as the shape of the special-shaped projection plane after being overlapped. According to the projection system provided by the invention, the projection of the projection system on the special-shaped projection surface can be realized while the difficulty of an original preparation process is not increased and the lightness and thinness of the projection system are ensured. Furthermore, the reduction of the working efficiency of the projection system caused by increasing the number of the optical elements or adjusting the working parameters of the original optical elements can be avoided.

Description

technical field [0001] The present application relates to the technical field of optical elements, and in particular, to a projection system and a preparation method thereof. Background technique [0002] The projection system is an optical system that illuminates an object and images it on the projection surface. Usually, the projection surface is a rectangular plane. In order to fit the shape of the projection surface, the shape of the light spot containing the projection information projected by the projection system is also rectangular. However, in some application fields, the shape of the projection surface is not limited to a rectangle. In order to match the shape of the projection surface, the traditional process usually adds a special-shaped diaphragm with a similar shape to the projection surface in the projection system; or use the illumination chip of the projection system. Projection is performed on the part with a similar shape to the projection surface, so that...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/00G03B21/20
CPCG03B21/008G03B21/208
Inventor 孙永强王志超郎海涛李明亮朱旭彪
Owner NINGBO SUNNY AUTOMOTIVE OPTECH
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