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Light projection device and its shutter structure

A projection device and reflective structure technology, which can be used in signal devices, transportation and packaging, vehicle parts, etc., can solve problems such as the inability to effectively use light-emitting structures and affect the light pattern of car light devices

Active Publication Date: 2021-04-30
CHIAN YIH OPTOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method cannot effectively utilize the light-emitting structure
[0006] In addition, further speaking, when the vehicle light device is in the low light state, some light may still be reflected by the top surface of the shutter structure to form a light transmitted into the lens, however, these light will form A stray light projected above the horizontal line (HH line), which affects the light pattern projected by the car light device

Method used

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  • Light projection device and its shutter structure
  • Light projection device and its shutter structure
  • Light projection device and its shutter structure

Examples

Experimental program
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Effect test

no. 1 example

[0077] First, see Figure 1 to Figure 4 as well as Image 6 as shown, Figure 1 to Figure 4 They are respectively three-dimensional decomposition and three-dimensional combination schematic diagrams of the light projection device Q in the embodiment of the present invention, Image 6It is a schematic diagram of the main structure of the light projection device Q in the near light state. The present invention provides a light projection device Q, which includes a bearing base 1, a first reflective structure 2, a second reflective structure 3, a first light emitting structure 4, a second light emitting structure 5, and a lens structure 6 and a shroud structure 7 . For example, the first reflective structure 2 and the second reflective structure 3 can be composed of a plurality of curved surfaces with different curvatures or a single curved surface, for example, the reflective structures can be composed of curved surfaces based on ellipses. In addition, the first reflective s...

no. 2 example

[0095] First, see Figure 9 and Figure 10 as shown, Figure 9 and Figure 10 It is a schematic diagram of the shutter structure 7 according to the embodiment of the present invention. It should be noted that the shutter structure 7 provided in the second embodiment can be used to replace the shutter structure 7 provided in the first embodiment. The shutter structure 7 provided by the embodiment of the present invention is preferably applicable to the implementation when the second light emitting structure 5 is located below the optical axis A of the lens, or the second light emitting structure 5 is located below the optical axis A of the lens and the first light emitting structure 4 Located on or above the optical axis A of the lens. In other words, in terms of the light projection device Q provided in the first embodiment, the distance between the first focal point 3a of the second reflective structure 3 and the optical axis A of the lens is greater than the first focal ...

no. 3 example

[0102] First, see Figure 11 to Figure 14 shown, and in due course with the Figure 15 and Figure 16 As shown, the third embodiment of the present invention provides a shutter structure 7 that can be applied to the light projection device Q, by Figure 9 and Figure 11 The comparison shows that the biggest difference between the third embodiment and the second embodiment is that the shutter structure 7 provided by the third embodiment has a groove-shaped structure G relative to the shutter structure 7 as a whole. In addition, the third embodiment The first reflective surface 731 and the second reflective surface 732 of the provided shutter structure 7 can also be arranged substantially parallel to the optical axis A of the lens. In detail, the shutter structure 7 may include a front cutoff edge 71 , a rear cutoff edge 72 and a top surface 73 . The rear cut-off edge 72 and the front cut-off edge 71 are disposed corresponding to each other, and the top surface 73 can be con...

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Abstract

The invention discloses a light projection device and a shutter structure thereof. The shroud structure includes a shroud body, a light type adjustment part, a first extinction area and a second extinction area. The light pattern adjusting part is arranged on the shutter body. The first extinction area is disposed on the shutter body and is located on a first side of the light pattern adjustment part. The second extinction area is disposed on the shutter body and is located on a second side of the light pattern adjustment part. Thereby, the present invention achieves the effect of reducing stray light.

Description

technical field [0001] The invention relates to a light projection device and its shutter structure, in particular to a light projection device with switchable light type state and its shutter structure. Background technique [0002] First of all, in the design of the existing car light device, the high beam and the low beam have different demands and specifications. , in order to achieve the purpose of broad vision at close range. Therefore, in the design concept of the car light device, the high beam and the low beam are usually designed separately, that is, each has its own dedicated light cup to be responsible for the illumination of the high beam and the low beam respectively. For example, the "light structure for driving lighting" disclosed in Patent No. TW M353845 achieves the switching function of the near light and the far light through separate near light and far light modules. [0003] Next, the light-emitting module of the existing car light device can be divid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21S41/25F21S41/36F21S41/40
Inventor 王正
Owner CHIAN YIH OPTOTECH CO LTD
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