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Laser pen for multimedia teaching

A multimedia teaching and laser pointer technology, applied in the field of laser pointers, can solve problems such as students are prone to fatigue, increase the burden on users, and guide inaccurately, and achieve the effect of enhancing the guiding effect and keeping the brightness of the light spot constant

Active Publication Date: 2021-08-20
山东电子职业技术学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In multimedia teaching, because it is inconvenient to use the traditional pointer for guidance, a laser pointer using laser guidance was invented. The existing laser pointer appears as a light spot on the screen, but the guided object is not a point in most cases. , but one piece or one line. In order to get the effect of guiding one piece or one line, the user keeps moving the light spot. This method not only increases the burden on the user, but also the guidance is not accurate, which is easy to cause the students to be distracted, and the students are easy to produce fatigue

Method used

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  • Laser pen for multimedia teaching
  • Laser pen for multimedia teaching

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] A laser pointer for multimedia teaching, comprising a housing 1, a laser generating unit, and a lens group unit;

[0021] The housing 1 is cylindrical, and the housing 1 is provided with a cavity, and the outer wall of the housing 1 is sequentially provided with a first key block 2, a second key block 3, a first key block 2, and a second key block 3 respectively communicate with the cavity of the housing 1, wherein the first key block 2 can slide in the vertical direction of the axial direction of the housing 1, and the second key block 3 can slide upward in the axial direction of the housing 1;

[0022] The laser generating unit is arranged in the housing cavity, and the laser generating unit is used to generate a laser beam. The laser generating unit includes a power supply connected in sequence, a sliding rheostat, a switch 4, and a laser generator, wherein t...

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Abstract

The invention discloses a laser pen for multimedia teaching, which comprises a shell, a laser generating unit and a lens group unit. The lens group unit comprises a conversion lens group, a rear fixed lens group, a movable lens group and a front fixed lens group; the conversion lens group comprises a first conversion lens capable of enabling a laser beam to generate a line segment-shaped light spot on an optical screen and a second conversion lens capable of enabling the laser beam to generate an annular light spot on the optical screen. According to the invention, not only can the annular light spot be generated, but also the line segment light spot can be generated, switching between the annular light spot and the line segment light spot can be realized according to actual needs, and the size of the annular light spot and the length of the line segment light spot can be adjusted according to actual needs.

Description

technical field [0001] The invention belongs to the technical field of multimedia teaching, in particular to a laser pointer for multimedia teaching. [0002] technical background [0003] With the rapid development and popularization of computer technology, multimedia teaching has gradually replaced the previous traditional teaching mode, and multimedia teaching has become a trend of modern education. At present, all colleges and universities, primary and secondary schools have built multimedia teaching systems. In multimedia teaching, because it is inconvenient to use the traditional pointer for guidance, a laser pointer using laser guidance was invented. The existing laser pointer appears as a light spot on the screen, but the guided object is not a point in most cases. , but one piece or one line. In order to get the effect of guiding one piece or one line, the user keeps moving the light spot. This method not only increases the burden on the user, but also the guidance ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B17/02G02B27/09
CPCG09B17/02G02B27/0961G02B27/0966
Inventor 王红姜治臻高婷婷周雪莉林影丽
Owner 山东电子职业技术学院
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