3D structured light laser transmitter and 3D structured light device
A laser transmitter and laser emission technology, applied in the field of 3D detection, can solve the problem of not covering the field of view of ultra-wide-angle cameras, and achieve the effect of improving precision and accuracy and high spot density
Pending Publication Date: 2021-08-27
深圳博升光电科技有限公司
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Problems solved by technology
[0005] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a 3D structured light laser emitter and a 3D structured light device to solve the problem that the 3D structured light laser emitter in the prior art cannot cover the field of view of an ultra-wide-angle camera. question
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[0026] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for ease of description, only parts related to the invention are shown in the drawings.
[0027] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.
[0028] First aspect, such as figure 1 As shown, the 3D structured light laser emitter provided by the embodiment of the present invention includes:
[0029] The laser emitting unit 2 is configured to emit speckle laser beams; for example but not limited thereto, the speckle laser beams here may b...
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The invention discloses a 3D structured light laser transmitter and a 3D structured light device, wherein the 3D structured light laser transmitter comprises a laser transmitting unit which is used for transmitting a speckle laser beam; a first optical assembly which is used for collimating the speckle laser beam; a second optical assembly which is used for expanding the straightened speckle laser beam and performing light spot copying; and a third optical assembly which is used for expanding the speckle laser beam after beam expanding and light spot copying again. According to the scheme, after the speckle laser beam is expanded through the second optical assembly, the speckle laser beam is further expanded through the third optical assembly, so that the 3D structured light laser transmitter has a field angle which is large enough to cover a field angle of an ultra-wide angle camera; in addition, the second optical assembly copies the light spots of the speckle laser beams, so that after the field angle of the 3D structured light laser transmitter is enlarged, the 3D structured light laser transmitter still has higher light spot density, and the precision and accuracy of 3D detection are improved.
Description
technical field [0001] The present invention generally relates to the technical field of 3D detection, and in particular to a 3D structured light laser emitter and a 3D structured light device. Background technique [0002] With the popularization of mobile devices and intelligent interactive devices, 2D (Dimension; dimension) can no longer meet the needs of industry development because it can only provide position information in XY two directions. 3D technology can not only provide position information in XY directions, but also provide position depth information, which can reduce misjudgment during 2D recognition. Therefore, 3D technology has been widely used in the face-swiping payment industry, smart door locks, and somatosensory games. , security monitoring, intelligent robot obstacle avoidance, etc. [0003] At present, 3D technologies in the industry mainly include binocular, TOF, structured light, etc., and structured light 3D technology is widely used due to its ad...
Claims
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Login to View More IPC IPC(8): G03B15/02G02B27/09H04N13/254H04N13/271G01S17/08G01B11/24
CPCG01B11/24G01S17/08G02B27/0927G02B27/0944G02B27/0955G03B15/02H04N13/254H04N13/271
Inventor 徐小岚余建男王百顺
Owner 深圳博升光电科技有限公司