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Transmitting module, optical detection device and electronic equipment

An optical detection and module technology, applied in the field of ranging, can solve the problems of shortening the life of the transmitting module device, unfavorable life of the optical detection device, waste of light emission power, etc., and achieve the effect of reducing the overall power consumption

Pending Publication Date: 2022-03-25
SHENZHEN FUSHI TECH CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the power and phase of the optical signal emitted by the current optical detection device are usually fixed and cannot be adjusted. It is necessary to design the emission parameters of the optical signal to meet the measurement requirements of the longest distance within the range, which leads to the short-distance sensing A large part of the optical transmission power will be wasted in the scene, which is not conducive to the battery life of the optical detection device, and will also shorten the device life of the transmission module

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  • Transmitting module, optical detection device and electronic equipment
  • Transmitting module, optical detection device and electronic equipment
  • Transmitting module, optical detection device and electronic equipment

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Embodiment Construction

[0042] Embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions. The embodiments described below by referring to the figures are exemplary, and are only for explaining the present application, and should not be construed as limiting the present application. In the description of the present application, it should be understood that the terms "first" and "second" are only used for description, and cannot be interpreted as indicating or implying relative importance or implicitly indicating the quantity or sequence of the indicated technical features . Therefore, the technical features defined as "first" and "second" may explicitly or implicitly include one or more of said technical features. In the description of the present application, "plurality" means two or more, unless otherwise specif...

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Abstract

The invention provides an emission module. The emission module comprises a light-emitting part and a phase modulation element. The light-emitting part is configured to emit at least two beams of first light signals. The phase modulation element is configured to receive the first optical signal and correspondingly output at least two beams of second optical signals. Wherein each beam of second optical signal is obtained by modulating the phase of the corresponding beam of first optical signal through the phase modulation element. The invention further provides an optical detection device comprising the emission module and electronic equipment.

Description

technical field [0001] The application belongs to the technical field of distance measurement, and in particular relates to a transmitting module, an optical detection device and electronic equipment. Background technique [0002] The principle of Time of Flight (TOF) measurement is to calculate the distance of an object by measuring the flight time of an optical signal in space, or in other words, three-dimensional information such as the depth of the object surface. Because TOF measurement has the advantages of long sensing distance, high precision, and low energy consumption, it is widely used in consumer electronics, unmanned driving, AR / VR and other fields. [0003] The optical detection device using the TOF principle includes a transmitting module and a receiving module. The transmitting module is used to transmit light signals into space, and the receiving module receives the signal-bearing light signal returned from the object, and senses the three-dimensional infor...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/481G01S17/894G01S17/931
CPCG01S7/4814G01S7/4817G01S17/894G01S17/931
Inventor 李佳鹏张东虎莫良华
Owner SHENZHEN FUSHI TECH CO LTD