A concentrating light-by-light photoelectric switch
A photoelectric switch and concentrating technology, which is applied in electronic switches, electrical components, pulse technology, etc., can solve the problems of strong interference, difficulty in ensuring control accuracy, and difficulty in tracking the sun, so as to avoid interference, display meaning, and focus good light effect
Active Publication Date: 2015-12-09
JINAN HONGYI GEZHI TECH & TRADE
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Problems solved by technology
Since the intensity of ambient light and sunlight varies greatly throughout the year, morning, evening and noon, it is difficult for the above two controllers to make the solar receiving device track the sun in all seasons.
Due to the phenomenon of light diffraction and refraction, the interference is strong, making it difficult to guarantee the control accuracy
Method used
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[0016] Such as figure 1 , the principle of photoelectric switch to control solar energy by light is as follows. A plane area is divided into four effective sub-areas, and multiple photoresistors are integrated in each sub-area, responsible for the intensity of the light source in four directions. In the total area of the area A small imaging hole is preset on the top. When the sunlight passes through the small hole, the sunlight shines on the photoresistor in the corresponding area.
[0017] The working principle of the photoresistor is based on the photoconductive effect. Its structure is to coat a layer of light-sensitive semiconductor material on the glass substrate, with comb-shaped metal electrodes at both ends, and then cover a layer of paint film on the semiconductor. When the photoresistor is irradiated by light in a certain wavelength range, electron-hole pairs are generated because the photoconductive material of the photoresistor absorbs light energy. At this time...
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A light- condensing sun-tracking optoelectronic switch comprises a housing, a condensing lens, refracting prisms and light sensitive resistors. The housing is a fully sealed housing; the light sensitive resistors occupy the front, back, left and right orientations of the bottom of the housing and each light sensitive resistor is accordingly provided with one refracting prism above; the refracting prism is a cone-shaped body, the upper end of which is big and the lower end is small; the upper surfaces of the four refracting prisms are almost in the same surface and the four refracting prisms occupy the front, back, left and right orientations respectively; and the panel which is on the top of the housing is provided with a condensing lens which focus the collected rays onto the refracting prisms. Rays penetrated through light holes are condensed and refracted and then act on the light sensitive resistors directly to form a photoelectric effect which then performs control through corresponding circuit. Compared with the traditional technical scheme of pinhole imaging, the light- condensing effect is better through the technical scheme in the invention and the rays are effectively reinforced, so that the interference of the rays on the adjacent light sensitive resistors is effectively prevented and the optoelectronic switch exhibits good practical significance.
Description
technical field [0001] The invention relates to a photoelectric switch, in particular to a concentrating light-by-light photoelectric switch. Background technique [0002] Since the industrial revolution, the main energy used by human beings is petrochemical energy. However, its reserves are limited. Extensive use has caused great changes in the global environmental ecology and climate. At the same time, the concentration of greenhouse gases in the atmosphere has increased significantly, causing the temperature to gradually rise. The phenomenon of the greenhouse effect such as sea level rise threatens the environment in which we live. Therefore, it is an urgent need to actively develop low-pollution and low-risk energy sources in today's rising awareness of environmental protection. And solar energy is a kind of free, non-polluting and inexhaustible, is a kind of quite good energy that can be utilized to generate electricity. However, the current solar power generation eff...
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IPC IPC(8): H03K17/78
Inventor 马帅
Owner JINAN HONGYI GEZHI TECH & TRADE