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Glass picture projector

A technology for projectors and pictures, applied in the field of projectors, can solve problems such as no pictures, and achieve the effect of zooming in, zooming out and rotating

Inactive Publication Date: 2013-01-16
NANJING DAWU EDUCATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing projectors, etc. can realize projection onto objects such as glass, but there is no specific technology for manually operating, moving and enlarging pictures on glass

Method used

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  • Glass picture projector

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Embodiment Construction

[0008] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0009] figure 1 A glass picture projector shown is composed of a projection unit 1 , several laser light sources 2 , several photoresistors 3 , a receiving unit 4 , and a projection port 5 . A plurality of laser light sources 2 are arranged in parallel on one side of the projection unit 1 , corresponding to a plurality of photoresistors on the side of the receiving unit 2 . The projection port 5 presents a trapezoidal shape to ensure that the projected image does not appear narrow at the top and wide at the bottom. When projecting, when the human hand moves in the projection area, it will partially cover the light source and change the resistance of some photoresistors, thereby detecting the direction of the human hand's movement. The projection part 1 and the receiving part 2 are fixed on the glass by suction cups.

[0010] When the human ha...

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PUM

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Abstract

The invention discloses a glass picture projector. The glass picture projector is composed of a projection portion (1), a plurality of laser light sources (2), a plurality of photo-resistors (3), a receiving portion (4) and a projection opening (5). The plurality of laser light sources (2) which are arranged in parallel on the upper side of the projection portion (1) correspond to the plurality of photo-resistors on one side of the receiving portion (4). The projection opening (5) is in a trapezoid shape, so that projecting images are free from that problem that tops are narrow and bottoms are wide. During projection, when a human hand moves in a projection area, part of light sources are shielded, and part of photo-resistor values are changed, so that action directions of the human hand can be detected. The projection portion (1) and the receiving portion (4) are fixed on glass through sucking disks are arranged below the projection portion (1) and the receiving portion (4). By the aid glass picture projector, moving, switching and control of projecting images on the glass are achieved, and amplification, reduction and rotation can also be achieved if procedures are designed properly.

Description

technical field [0001] The invention relates to a projector for projecting pictures on glass, in particular to a projector for glass that can sense the direction of hand movement and change the action to change the displayed picture. Background technique [0002] In many sci-fi movies, there will be computers with transparent screens, that is, computers that project images on glass for manipulation. Existing projectors and the like can realize projection onto objects such as glass, but there is no specific technology for manually operating, moving and enlarging pictures on glass. Contents of the invention [0003] The object of the present invention is to overcome the deficiencies in the prior art, and to provide a projector for operating projected images by judging the moving direction and actions of hands by means of light sensors. [0004] In order to solve the problems of the technologies described above, the present invention is achieved through the following technic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/00G06F3/0481
Inventor 高蓉
Owner NANJING DAWU EDUCATION TECH