Low-voltage parallel beam source generation device

A technology of parallel light beams and generating devices, which is applied in the direction of electric light sources, lighting devices, lighting device components, etc., can solve the problems of unaffordable, poor experimental results, unsafe students, etc., and achieve safe and reliable use, easy to put into production, low cost effect

Inactive Publication Date: 2009-02-18
上海市罗星中学
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Problems solved by technology

However, at present, there is no experimental device suitable for group experiments of students in China, and it cannot solve the safety problem of parallel beam light sources.
There are two types of parallel beam light sources used in existing optical experiments. One is to use a helium-neon laser tube as a parallel beam source. It uses high-voltage power supply, which is unsafe for student experiments. school can't afford it
The second is to use a combination of 220V incandescent lamp and convex lens as a parallel beam source, which not only has poor experimental results, but also is unsafe for students to work under 220V voltage
[0003] To sum up, the above two schemes are only suitable for teachers' demonstration experiments, not for students' group experiments

Method used

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  • Low-voltage parallel beam source generation device
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Embodiment Construction

[0017] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0018] The structure of the present invention is as figure 1 As shown, a low-voltage parallel beam source generating device mainly includes a power switch 1-3, three light-emitting tubes 7-9, a condenser lens 5, dry batteries 11-12, a circuit board 6, a base 13 and a mouse-shaped housing 4 . The luminous tube 7-9 is welded on the circuit board 6, and the condenser lens 5 is welded in front of the luminous tube 7-9. Dry batteries 11-12 are placed on the electrode spring clips of corresponding positions on the circuit board 6 . The circuit board 6 is fixed on the base 13 with screws. The luminescent tube power switch 1-3 is inlaid in the front of the mouse type housing 4 tops. The mouse-shaped housing 4 and the bottom plate 13 are fastened tog...

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Abstract

The invention discloses a low-voltage parallel beam source generation device which mainly comprises a power switch, a plurality of light emitting diodes, a dc power supply, a light focus lens, a circuit board, a base and a mouse-shaped shell. The light emitting diodes are welded on the circuit board; the light focus lens is welded in front of the light emitting diodes. A dry battery is arranged on the electrode spring clamp on the corresponding position of the circuit board. The circuit board is fixed on the base through a screw. The power switch of the light emitting diodes is embedded in front of the top end of the mouse-shaped shell. The mouse-shaped shell is buckled with a bottom plate through a lock buckle. The low-voltage parallel beam source generation device has the advantages of simple structure, low cost, convenient machining and convenient production.

Description

Technical field: [0001] The invention relates to a teaching experiment instrument, in particular to a low-voltage parallel beam light source generating device used in elementary and high school physics teaching geometry optics teaching. Background technique: [0002] Geometric optics is both the focus and difficult content of teaching in physics teaching in junior and senior high schools, and one of the best ways to break through this difficulty is to let each student do the experiment specified in the textbook. But at present, there is no experimental device suitable for group experiments of students in China, which cannot solve the safety problem of parallel beam light sources. There are two kinds of parallel beam light sources used in existing optical experiments. One is to use a helium-neon laser tube as a parallel beam source. It uses high-voltage power supply, which is unsafe for student experiments. The school can't afford it. The second is to use a combination of 2...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S9/02F21V5/04F21V23/00
Inventor 朱德宝
Owner 上海市罗星中学
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