Backlight module and distance measuring equipment

• Main Authors: CHEN YONGZE, WU ZHIYONG, LI WURONG
• Format: Patent
• Language: Chinese; English
• Published: 10.12.2021
• Subjects: DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

The utility model provides a backlight module and distance measuring equipment. The backlight module comprises a shell, a light-emitting part, a light guide plate and a display screen. According to the technical scheme, the through hole is formed in the shell, the through hole can be round or in other shapes, the shell is located between the objective lens and the eyepiece, so that a user can obtain a target scene through the eyepiece, the through hole and the objective lens, the through hole needs to penetrate through the light-emitting part and the light guide plate, and after the light-emitting part is connected with the light guide plate, the target scene can be obtained. Brightness (or backlight) is provided for the display screen in a side lightening mode, specifically, by means of the diffusivity of a light source and the light guiding performance of the light guide plate, light emitted by the light-emitting part enters the display screen through the light guide plate, and when the backlight module is