Light detection module that can improve light utilization efficiency

Abstract

The invention discloses a light detection module capable of improving light utilization efficiency. The light detection module comprises a housing, a light-emitting component, a light detection component and a light signal concentration component. The light-emitting component is arranged in the housing. The light detection component is arranged in the housing to receive a light detection signal from the light-emitting component. The light signal concentration component is used for loading the light-emitting component. The light signal concentration component comprises an output part, a bottom and at least one side part. The light-emitting component is mounted at the bottom, and a forward light signal of the light detection signal is projected to the exterior of the housing through the output part. The at least one side part is connected with the bottom in a bending manner and can reflect a side light signal of the light detection signal, thereby enabling the side light signal to be turned and projected out of the housing through the output part.

Description

technical field [0001] The present invention provides a light detection module, especially a light detection module that can improve light utilization efficiency. Background technique [0002] see figure 1 and figure 2 , figure 1 is a schematic diagram of a light detection module 40 in the prior art, figure 2 for figure 1 The structure cross-sectional view of the light detection module 40 shown along the section line B-B is shown. The light detection module 40 includes a housing 42 , a light emitting component 44 and a light detection component 46 . The light emitting component 44 and the light detecting component 46 are disposed in the casing 42 . Most of the light-emitting components 44 use wide-angle light-emitting diodes. The positive light signal S1 of the light detection signal output by the light-emitting component 44 will illuminate upwards and project out of the housing 42, but the side light signal S2 of the light detection signal will only shine on the in...

AI Technical Summary

Problems solved by technology

In order to maintain a certain amount of light incident on the light detection component 46, it is necessary to increase the current consumption of the light emitting component 44 to increase the light output intensity. However, this method wastes energy for no reason and does not conform to the current environmental protection trend of energy saving and carbon saving.

Images