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Reflective projection structure and projection optical system

A technology of reflection projection and projection area, which is applied in the field of projection, can solve problems such as poor definition of projection pattern boundaries, and achieve the effects of high-precision projection boundary definition, precise projection boundary definition, and clear boundary of light-emitting surface

Active Publication Date: 2022-01-07
MAGNETI MARELLI AUTOMOTIVE COMPONENTS WUHU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this patent document still has the defect of poor definition of the boundary of the projection pattern

Method used

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  • Reflective projection structure and projection optical system
  • Reflective projection structure and projection optical system
  • Reflective projection structure and projection optical system

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Embodiment 1

[0032] Such as Figure 1~5 As shown, a reflective projection structure provided by this embodiment includes a reflective projection structure body 1, a step 2 protrudes from the light-emitting surface of the reflective projection structure body 1, and a laser-carved light-emitting surface 3 is arranged on the step 2. The light from the reflective projection structure body 1 is emitted through the laser-engraved light-emitting surface 3 . The material of the step 2 is polycarbonate PC or polymethyl methacrylate PMMA, and in other embodiments, glass or other plastics are also applicable.

[0033] The light-emitting surface of the step 2 is entirely engraved with radium or left with a boundary radium engraving. In this embodiment, the light-emitting surface of the step 2 is left with a boundary radium engraving. The light-emitting surface of the reflective projection structure body 1 is provided with a light-absorbing surface except where the step 2 is located. In this embodimen...

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PUM

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Abstract

The invention provides a reflective projection structure and a projection optical system. The reflective projection structure comprises a reflective projection structure body, wherein a step is disposed at the light-emitting surface of the reflective projection structure body in a protruding manner; and the step is provided with a laser etching modeling light-emitting surface, and light passing through the reflective projection structure body is emitted out through the laser etching modeling light-emitting surface. The reflective projection structure can ensure that the boundary of the projection pattern is clear.

Description

technical field [0001] The present invention relates to the field of projection technology, in particular to a reflective projection structure and a projection optical system. Background technique [0002] Existing optical projection systems mostly project the ground, and it is better to confirm the design relationship between the reflection projection structure and the ground (plane) when projecting the ground. When projecting the vehicle body, it is difficult to confirm the corresponding relationship between the reflective projection structure and the design of the vehicle body (irregular surface). If the existing projection ground technology is used to project onto the surface of the vehicle body, there will be defects in projection boundary deformation. The reason is that the design principle is to expand the projection area to the body projection area through the reflective projection structure, but the body structure is often curved, irregularly deformed, and non-plana...

Claims

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Application Information

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IPC IPC(8): G03B21/28G03B21/14
CPCG03B21/28G03B21/147
Inventor 江璐芸邵坤
Owner MAGNETI MARELLI AUTOMOTIVE COMPONENTS WUHU