Optical detector
A light detector and current technology, applied in the field of visible light detection, can solve problems such as inaccurate measurement, and achieve the effect of avoiding measurement errors and reducing errors
Active Publication Date: 2012-09-12
杭州赛美蓝光电科技有限公司
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Problems solved by technology
[0005] In view of this, an embodiment of the present invention provides a photodetector to solve the problem of inaccurate measurement caused by the use of filter glass and silicon photocells in the photodetector in the prior art
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[0023] In order to effectively improve the accuracy of the photodetector and improve the anti-interference ability of the photodetector, the embodiment of the present invention provides a new type of photodetector
[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0025] In the present invention, the photodetector includes: a current supply circuit, a conversion module and a voltage output circuit, and the conversion module is connected to the current supply circuit and the voltage output circuit respectively;
[0026] The current supply circuit outputs a current signal, and inputs the current signal ...
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The invention discloses an optical detector which comprises a current supply circuit and a voltage output circuit, wherein the current supply circuit and the voltage output circuit are connected with a conversion module; a current signal outputted by the current supply circuit is served as an input signal of the conversion module; the current signal is converted into a voltage signal under the conversing effect of the conversion module; a current output chip is contained in the current supply circuit of the optical detector; and a coating film is integrated with the interior of the current output chip. In the optical detector provided by the invention, the current signal is converted into the voltage signal through the conversion module and the voltage signal is utilized to perform optical detection, so that the error of current detection is reduced. Besides, the current output chip, of which the interior is integrated with the coating film, is contained in the current supply circuit of the optical detector, so that the optical detector has different sensitivities for the light sources with different wavelengths and is fit for and matched with a daylight vision curve of human eyes, and the measurement error brought by a glass optical filter is further avoided.
Description
technical field [0001] The invention relates to the technical field of visible light detection, in particular to a light detector. Background technique [0002] Optical detectors, also known as optical detectors, are the primary part of optical receivers. Optical detectors are an important part of optical fiber sensors. Therefore, the performance indicators of optical detectors will directly affect the performance of sensors. [0003] The photodetector in the prior art is composed of a silicon photocell, a filter glass and opal glass. The photodetector can detect the light power incident on its surface, and convert the change of the light power into a corresponding current signal. [0004] However, since the output of the existing photodetector is a current signal, and the current signal is relatively weak, it is easy to be interfered by the outside world; in addition, the signal of the silicon photocell is linearly output, a strong light source outputs a large signal, and a...
Claims
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Inventor 陈东毛井生郑云
Owner 杭州赛美蓝光电科技有限公司