Novel distance sensing device and method

Abstract

The invention discloses a novel distance sensing device and method. The novel distance sensing device comprises a distance sensor, and further comprises a first photoconductive element and / or a secondphotoconductive element. The first photoconductive element is used for guiding the distance measuring laser emitted by the distance sensor to a tested object, the light input end faces the emitting end of the distance sensor, and the light emitting end faces the tested object; the second photoconductive element is used for directing the ranging laser reflected back by the object toward the distance sensor, the light entering end facing the object, and the light emitting end facing the sensing end of the distance sensor. The novel distance sensing device can flexibly design the installation position of the distance sensor in the terminal equipment.

Description

technical field [0001] The invention relates to the field of sensors, in particular to a novel distance sensing device and method. Background technique [0002] The distance sensor is a sensor that uses the "time-of-flight" principle to realize distance sensing. It mainly includes a ranging laser transmitter and a ranging laser sensor. The ranging laser transmitter is used to emit a near-infrared laser to the measured object. The ranging laser sensor is used to sense the near-infrared laser reflected back by the measured object, and then the distance calculator can calculate the The distance information of the measured object. [0003] When in use, the transmitting end and the sensing end of the distance sensor must be set on the same plane and face the object under test at the same time, so it is impossible to flexibly design its installation position in the terminal device. For example, the distance sensor on a mobile phone is mainly used to sense the distance of the hum...

AI Technical Summary

Problems solved by technology

[0003] When in use, the transmitting end and sensing end of the distance sensor must be set on the same plane and face the object under test at the same time, so it is impossible to flexibly design its installation position in the terminal equipment

For example, the distance sensor on a mobile phone is mainly used to sense the distance of the human head, so that the display screen can be automatically turned on or off according to the sensed distance of the human head when making a call. With the development of full-screen mobile phones, the distance sensor coplanar with the display screen occupies part of the space on the front of the mobile phone, making it impossible for the mobile phone to achieve a higher screen-to-body ratio

[0004] The demand for high screen ratio also exists on smart watches. The size of the display screen on smart watches is already small, and space must be reserved for the distance sensor. Too small a display size will lead to a decline in user experience.

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