Laser pointer

Abstract

The invention discloses a laser pointer which comprises a laser pen body, a red light laser head, a green light laser head, a composite shot, switches and a battery box. The laser pen body is provided with two sets of tracks. Four kinds of lenses of different shapes are embedded in the composite shot, and the composite shot is fixed to the head of the laser pen body. The red light laser head and the green light laser head are hung on the two switches, installed on the two sets of tracks respectively, and align at two lenses of the composite shot. According to the laser pointer, the shape of an image indicated by a laser can be changed, the size is changeable, indicated content is clear, and the laser pointer can play a greater role. Laser beams of the two colors can be provided and are switched conveniently; the laser pointer can achieve sterilization, emit fragrance and refresh people.

Description

technical field [0001] The invention relates to a laser pointer. Background technique [0002] With the updating of teaching equipment, the use of laser pointers is becoming more and more extensive. When using a laser pointer, usually the emitted laser light is a point, but the user often needs to indicate a word or a picture, so the traditional laser pointer cannot indicate the content more clearly, and thus cannot get better results. teaching effect; secondly, the existing laser pointer only has a laser beam of one color. And the function of sterilization, people who use the laser pointer generally put the pointer in their pockets. However, especially in summer, when the weather is hot, some bacteria will grow in the pockets, which will cause certain harm to the human body. There will be some peculiar smell left in the pocket; of course, in summer, the laser pointer is held for a long time, and the user's hands will also have sweat stains that breed bacteria and peculiar...

AI Technical Summary

Problems solved by technology

When using a laser pointer, usually the emitted laser light is a point, but the user often needs to indicate a word or a picture, so the traditional laser pointer cannot indicate the content more clearly, and thus cannot get better results. teaching effect; secondly, the existing laser pointer only has a laser beam of one color. And the function of sterilization, people who use the laser pointer generally put the pointer in their pockets. However, especially in summer, when the weather is hot, some bacteria will grow in the pockets, which will cause certain harm to the human body. There will be some peculiar smell left in the pocket; of course, in summer, holding the laser pointer for a long time, the user's hands will also have sweat stains that breed bacteria and peculiar smell

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