A 3D holographic integrated rear projection device
A holographic and rear-projection technology, which is applied in projection devices, holographic technology, holographic mechanical parts, etc., can solve the problems of low application ability and narrow application range, and achieve the effect of improving application ability, increasing aesthetic feeling, and expanding application range
Active Publication Date: 2020-09-25
安徽瀚一规划设计院有限公司
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Problems solved by technology
[0005] The purpose of the present invention is to provide a 3D holographic integrated rear projection device. By using the first motor to drive the winding shaft to rotate, the pull rope drives the holographic transparent rear projection screen to move up and down, and the image position is suspended, which solves the problem. There are problems such as low application ability and narrow application range of equipment
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[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0025] In describing the present invention, it is to be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "surrounding" etc. Indicating orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a sp...
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The invention discloses a 3D holographic integrated rear projection device and relates to the technical field of image display. It includes a bottom box and a protection box; the protection box is arranged on the top of the bottom box; a lens is arranged on the top of the protection box; positioning rods are symmetrically arranged around the lens; a projector is arranged in the protection box; a first motor is arranged on one side of the projector; The two winding rope shafts are symmetrically arranged on both sides of the motor; the two winding rope shafts are connected with the first motor through the gear assembly; the two winding rope shafts are fixedly connected with pull ropes; one end of the pull rope is inserted through the positioning rod and connected to the holographic lens above the lens on a transparent rear projection screen. The invention uses the first motor to drive the rope winding shaft to rotate through the gear assembly, so that the pull rope drives the holographic transparent rear projection screen to move up and down, thereby realizing shrinkage or enlargement of the imaging size, and making the image position in a suspended state, increasing the image quality. The aesthetic feeling greatly improves the application ability of projection equipment and expands its application range.
Description
technical field [0001] The invention belongs to the technical field of image display, in particular to a 3D holographic integrated rear projection device. Background technique [0002] Holographic projection technology, also known as virtual imaging technology, is a technology that uses the principles of interference and diffraction to record and reproduce the real three-dimensional images of objects. The first step is to use the principle of interference to record the light wave information of the object, which is the shooting process: the holographic projection shooting process of the object forms a diffuse object beam under laser irradiation; the other part of the laser beam is used as a reference beam to shoot onto the holographic film , and overlap with the object beam to generate interference, convert the phase and amplitude of each point on the object light wave into a spatially varying intensity, and use the contrast and interval between the interference fringes to r...
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IPC IPC(8): G03B21/54G03H1/22
CPCG03B21/54G03H1/22G03H2227/03
Inventor 冀凤全
Owner 安徽瀚一规划设计院有限公司