Laser projection module, depth camera and electronic device
A laser projection and module technology, applied in installation, optics, optical components, etc., can solve problems affecting the use of laser projection modules
Active Publication Date: 2021-04-23
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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Problems solved by technology
[0002] In the existing laser projection module, there is generally a gap between the lens barrel and the diffractive optical element installed in the lens barrel, so that dust and / or water outside the laser projection module can easily enter the laser projection module along the gap. Group internal and thus affect the use of the laser projection module
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[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 denote 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 only for explaining the present invention and should not be construed as limiting the present invention.
[0036] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating ...
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The laser projection module of the present invention includes a lens barrel, a diffractive optical element and an annular seal. The lens barrel includes a side wall of the lens barrel and defines a receiving cavity. The diffractive optical element is accommodated in the accommodation cavity. The sealing member is arranged between the side wall of the lens barrel and the diffractive optical element and seals a gap between the side wall of the lens barrel and the diffractive optical element. The laser projection module sets a seal between the lens barrel and the diffractive optical element, so that the seal can seal the gap between the side wall of the lens barrel and the diffractive optical element, thereby avoiding dust and / or water outside the laser projection module. Parts enter the laser projection module from the gap between the side wall of the lens barrel and the diffractive optical element, thereby affecting the use of the laser projection module. The invention also discloses an electronic device and a depth camera.
Description
technical field [0001] The invention relates to the technical field of consumer electronics, in particular to a laser projection module, a depth camera and an electronic device. Background technique [0002] In the existing laser projection module, there is generally a gap between the lens barrel and the diffractive optical element installed in the lens barrel, so that dust and / or water outside the laser projection module can easily enter the laser projection module along the gap. The internal of the group further affects the use of the laser projection module. Contents of the invention [0003] Embodiments of the present invention provide a laser projection module, a depth camera and an electronic device. [0004] The laser projection module of the embodiment of the present invention includes: [0005] A lens barrel, the lens barrel includes a side wall of the lens barrel and is provided with a receiving cavity; [0006] a diffractive optical element housed in the hous...
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IPC IPC(8): G02B7/00G02B27/42
CPCG02B7/00G02B27/4205
Inventor 周奇群
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD