Infrared sensor capable of being normally used under hard light and noise environment
An infrared sensor and noise technology, which is applied in the field of improvement of electronic components and devices, can solve problems such as infrared sensors not working normally, and achieves the effects of simple structure, shortened detection distance, and noise reduction.
Inactive Publication Date: 2015-06-24
XIAN MEIYU INFORMATION TECH
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Problems solved by technology
[0002] The working principle of the infrared sensor currently used in the market is: the human body emits infrared light and projects it onto the Fresnel lens. After the lens is focused and enlarged, it is projected onto the infrared filter. On the component, the detection sensitive component converts the optical signal into an electrical signal and outputs it from the field effect tube, but the commonly used infrared sensor cannot work normally under high-pitched noise and sunlight
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[0012] Below in conjunction with accompanying drawing, the present invention is described in detail as follows:
[0013] like figure 1 As shown, an infrared sensor that can be used normally under strong light and noise belongs to the technical field of improving electronic components and devices, and includes a tube cap, a photosensitive element, a tube seat and pins. The tube cap is a cylindrical structure, and its top There is a window, and an optical filter is embedded on the window, and the optical filter is an infrared optical filter. Fixedly connected, a FET tube is arranged between the high resistance and the photosensitive element, and the cylindrical tube cap is connected to the cylindrical tube base. Compared with the prior art, the present invention has reasonable design and simple structure. The tube cap and tube seat of the infrared filter can effectively filter strong light and strong noise, and play a role in reducing noise. It can not only ensure that the sens...
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Abstract
The invention discloses an infrared sensor capable of being normally used under a hard light and noise environment and belongs to the field of improvement techniques of electronic component devices. The infrared sensor comprises a tube cap, a photosensitive element, a tube socket and pins, the tube cap is of a cylindrical structure, a window is formed in the top end of the tube cap, an optical filter is embedded in the window, the optical filter is an infrared optical filter, the tube socket is of a cylindrical structure, the optical filter is arranged on one side of the tube socket, the photosensitive element is fixedly connected with high resistors, FETs are arranged between the high resistors and the photosensitive element, and the cylindrical tube cap is connected with the cylindrical tube socket in a covering mode. Compared with the prior art, the infrared sensor has the advantages that design is reasonable, and the structure is simple; the tube cap with the infrared optical filter and the tube socket are adopted, so hard light and noise can be effectively filtered out, the effect of lowering noise is achieved, it can be guaranteed that work of the sensor is not affected under the hard light and high noise environment; meanwhile, the detection distance can be shortened, and detection accuracy can be greatly improved.
Description
technical field [0001] The invention relates to the technical field of improving electronic components and devices, in particular to an infrared sensor that can be used normally under strong light and noise. Background technique [0002] The working principle of the infrared sensor currently used in the market is: the human body emits infrared light and projects it onto the Fresnel lens. After the lens is focused and enlarged, it is projected onto the infrared filter. On the component, the detection sensitive component converts the optical signal into an electrical signal and outputs it from the field effect tube, but the commonly used infrared sensor cannot work normally under high-pitched noise and sunlight. [0003] In order to well solve the above problems, the present invention provides an infrared sensor that can be used normally under strong light and noise. Contents of the invention [0004] The technical solution adopted by the present invention to solve the tech...
Claims
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Inventor 王肖
Owner XIAN MEIYU INFORMATION TECH