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Apparatus for preventing blackboard reflection

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 simple overall structure.

Active Publication Date: 2016-07-06
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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  • Apparatus for preventing blackboard reflection
  • Apparatus for preventing blackboard reflection
  • Apparatus for preventing blackboard reflection

Examples

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Embodiment 1

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

[0048] The 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 connected to the polarizer support frame 3 in rotation;

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

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

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

[0052] The anti-blackboard reflective device provided by the present invention is debugged in front of the window before use, and a suit...

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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 aids, in particular to a blackboard anti-reflection device. Background technique [0002] Present primary and middle school classrooms generally still use blackboard and chalk for teaching. The blackboard is positioned at the front of the classroom, and the teacher writes the teaching content on the top, and the students watch it below. However, due to the smoother surface of the blackboard, students in classrooms often feel that when the intensity of sunlight is high, especially in summer when the light is bright, the sunlight with high intensity of glare enters the classroom obliquely through the window. Later, reflections tend to form on the blackboard. [0003] When students are looking at the blackboard, they often cannot read the words on the blackboard because the light in a certain place is too strong. Especially in the seat by the window, the sun shines directly on the table, and the r...

Claims

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Application Information

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Patent Type & Authority Applications(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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