Light detection circuit and method

The optical detection circuit comprises a photoelectric conversion module, a photocurrent amplification module and a photocurrent comparison module which are mutually connected in pairs, the photoelectric conversion module comprises at least two photodiodes, and the at least two photodiodes are different in temperature influence degree, that is, the photocurrent amplification module and the photocurrent comparison module are mutually connected in pairs. Based on the fact that different photodiodes are affected by different degrees of temperature, it can be guaranteed that at least one photodiode which is slightly affected by the temperature works normally at different temperatures, the probability that the light attack detection result of the photodiodes is inaccurate due to the temperature reason can be reduced, and the detection accuracy of the light attack detection result is improved. The accuracy of the optical detection circuit is improved. 本申请实施例公开了一种光检测电路及方法，包括两两相互连接的光电转换模块、光电流放大模块和光电流比较模块，光电转换模块中包括至少