Anti-blackboard reflective device

A technology of a reflective device and a blackboard, which is applied in the field of teaching appliances, can solve problems such as students not being able to study normally, and achieve the effects of improving class efficiency, convenient disassembly and assembly, and weakening the degree of reflection.

Active Publication Date: 2018-07-31
谢宗奇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to avoid the deficiencies of the prior art and provide an anti-blackboard reflection device to solve the technical problem in the prior art that students cannot study normally due to the reflection of the blackboard, and to simply and effectively eliminate the impact of the reflection of the blackboard on the students' vision

Method used

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Examples

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Embodiment 1

[0047] figure 1 It is a front view of the anti-blackboard reflection device provided by an embodiment of the present invention. Such as figure 1 As shown, in this embodiment, an anti-blackboard reflection device is provided. The anti-blackboard reflection device includes a fixed support 1, a rotating frame 2, a polarizing plate support frame 3, and two polarizing plates 4;

[0048] Two polarizers 4 are arranged in parallel, one of the polarizers 4 is fixedly connected to the polarizer support frame 3, and the other polarizer 4 is rotatably connected to the polarizer support frame 3;

[0049] The polarizer support frame 3 is rotatably connected with the fixed support 1;

[0050] The polarizer support frame 3 abuts the rotating frame 2;

[0051] The fixed support 1 and the rotating frame 2 are respectively used for fixing to the wall.

[0052] The anti-blackboard reflection device provided by the present invention is debugged in front of the window before use, and an appropriate installa...

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PUM

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Abstract

The invention provides an apparatus for preventing blackboard reflection, and relates to the technical field of teaching aids. The apparatus comprises a fixing bearer, a swivel mount, a polaroid bracing frame and two polaroids, wherein the two polaroid are arranged in parallel, one polaroid is fixedly connected with the polaroid bracing frame, the other polaroid is rotatably connected with the polaroid bracing frame, the polaroid bracing frame is rotatably connected with the fixing bearer, the polaroid bracing frame abuts against the swivel mount, and the fixing bearer and the swivel mount are fixedly connected to a wall. The apparatus for preventing blackboard reflection solves the problem of impossibility of normal learning due to reflection of a blackboard.

Description

Technical field [0001] The invention relates to the technical field of teaching appliances, in particular to a blackboard anti-reflective device. Background technique [0002] In current primary and secondary school classrooms, blackboards and chalk are generally used for teaching. The blackboard is located in the front of the classroom. The teacher writes the teaching content on the top and the students watch it below. However, due to the smooth surface of the blackboard, classmates in classrooms often feel this way. In the case of high sunlight intensity, when the light is bright, especially in summer, the harsh sunlight enters the classroom obliquely through the windows. In the future, reflections will often be formed on the blackboard. [0003] When students look at the blackboard, they often cannot see the words on the blackboard because of the strong light in a certain place. Especially on the window seat, the sunlight is directly on the tabletop, and the reflection of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B27/28B43L1/04
CPCB43L1/04G02B27/281
Inventor 谢宗奇刘国涛
Owner 谢宗奇
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