Structured light module and electronic equipment
A structured light and module technology, applied in the field of artificial intelligence, can solve the problems of high processing cost, large volume, and difficult miniaturization of 3D structured light modules, and achieve the effect of simplifying the structure and reducing the processing difficulty and cost.
Pending Publication Date: 2022-03-11
深圳市安思疆科技有限公司
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[0005] The collimating mirror, imaging lens, and optical diffraction element (or diffusing optical element) in the above-mentioned prior art are all traditional optical elements. By adjusting the geometric shape or refractive index of the interface, the optical path of the beam is changed to realize the regulation of the beam. Therefore, The volume is large and it is difficult to integrate; in addition, the structured light projector, infrared receiving camera and color camera contain many optical components. In actual production, the assembly accuracy of each component is very high, which makes the 3D structured light module difficult to integrate as a whole. Miniaturization and high processing costs, how to miniaturize and integrate optical components and reduce the production cost of 3D structured light modules is a major problem at present
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[0034] In the following description, many specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, therefore, the present invention is not limited to the specific embodiments disclosed below limit. The orientation words "up", "down", "left" and "right" involved in this article are set based on the corresponding drawings. It can be understood that the appearance of the above orientation words does not limit the protection of the present invention. scope.
[0035] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should n...
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A structured light module disclosed by the present invention comprises a structured light projector, an infrared receiving camera and a color camera, the structured light projector, the infrared receiving camera and the color camera each at least comprise a dimming element, and at least one dimming element is of a metasurface structure. The invention also discloses an electronic device, and the electronic device is provided with the structured light module. The metasurface structure is adopted to replace an original traditional dimming element, the functions of other optical elements are integrated on the metasurface structure, the structure of the structured light module is simplified, the machining difficulty and cost are low, and meanwhile the structure light module has the advantages of being small in size, portable and high in resolution.
Description
technical field [0001] The invention relates to the field of artificial intelligence, in particular to an ultra-thin 3D structured light module and electronic equipment based on an optical metasurface. Background technique [0002] Artificial intelligence has begun to slowly penetrate into people's daily life. Robots, autonomous driving, drones, smart door locks, face payment, etc. have brought a lot of convenience to our lives, and smart products will also win in the future. growth. As the "eye" of the machine - visual perception has also become the most important part of artificial intelligence. Among them, 3D structured light technology is widely used in Face payment, security inspection, service robots and other fields. Of course, the gradual migration from industrial applications to consumer electronics also puts forward higher requirements for the miniaturization and low cost of 3D structured light technology. [0003] Common 3D structured light modules mainly inclu...
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IPC IPC(8): H04N13/204H04N5/225H04N5/232H04N5/33G02B5/00G03B15/03
CPCH04N13/204H04N5/33G03B15/03G02B5/00H04N23/55H04N23/67
Inventor 陈驰李安张莉萍蒋建华
Owner 深圳市安思疆科技有限公司