CN201352301Y

CN201352301Y - Holographic projection device

Info

Publication number: CN201352301Y
Application number: CN 200920050133
Authority: CN
Inventors: 林鹏; 张汀
Original assignee: Dongguan Huanyu Laser Engineering Co Ltd
Current assignee: Dongguan Lasereffect Culture Technology Co.,Ltd.
Priority date: 2009-01-14
Filing date: 2009-01-14
Publication date: 2009-11-25
Anticipated expiration: 2019-01-14

Abstract

The utility model relates to the technical field of projection equipment, in particular to a holographic projection device. The holographic projection device comprises a light-transmissible bottom screen and a projector. Light-transmissible projection screens are arranged above the bottom screen, the bottom screen and the projection screens present a mirror face imaging structure, and the projector is arranged below the bottom screen. Different images are projected on the bottom screen by the projector, and the images on the bottom screen are then reflected onto the projection screens; as the screens are light-transmissible, three-dimensional images can be formed in the space surrounded by the projection screens in view of a looker, and the third dimension is fairly strong.

Description

Holographic projector

Technical field:

The utility model relates to the projector equipment technical field, particularly has the holographic projector of advertising results.

Background technology:

Holographic technique is to realize the record of real 3-D view and the technology of reproduction, and this image is called hologram.Different with other three-dimensionals " image " is that hologram provides " parallax ".The existence of parallax makes the observer to observe the different vivid of image with moving up and down by all around--as a real object being arranged there.

Present stereoprojection realizes that by the polarisation of light principle spectators can only see corresponding polarized light image by every eyes of polaroid glasses, thereby produces stereo perception in visual system; This stereoprojection requires very high to the polarizability of screen; Also has the three-dimensional line holographic projections technology of laser in addition, principle is with multiple laser the each point in the certain space scope to be scanned, thereby formation stereopsis, because the arrangement of scanning each point is real 3D, therefore the image that forms also is real 3D's, laser beam is beaten on a locus, the image that has just occurred the personage without foundation, see it all is three-dimensional from any angle, but this technology is to the environmental requirement height, relate to a series of problems such as technical bottleneck, cost factor, also only limit to theory stage.

Patented claim about Color Laser Projection Technology at present also has much, for example:

To be " 200410024031.7 ", patent name utilize laser with hologram image device shown once more for disclosing a kind of holographic laser binocular projector in the Chinese invention patent application of " holographic laser binocular projector ", belonging to number of patent application; It comprises generating laser, beam expanding lens, dot matrix photoswitch etc., the laser beam vertical irradiation after expanding bundle by regularly arranged pass through control circuit control have an optionally dot matrix photoswitch layer plane of light path; The holographic plate parallel with dot matrix photoswitch layer is that the holofilm micro that has the subject coding is arranged the negative film array that forms; Said negative film array is corresponding one by one with the sub-switch arrays of dot matrix photoswitch layer; Imaging len is parallel with holographic plate.The projector of aforementioned structure can demonstrate has relief image, still, the structure more complicated of this projector, projection imaging also more complicated of principle.

Number of patent application is that " 01206664.8 ", patent name disclose a kind of three-dimensional imaging instrument in the Chinese utility model patent of " three-dimensional imaging instrument ", being linked to each other with signal control processor by at least two generating lasers forms, and the laser beam that generating laser sends constitutes image at the luminous point of space intersection.This three-dimensional imaging instrument relatively simple for structure, image-forming principle is also fairly simple, because it is to adopt laser beam directly to intersect picture, therefore, its imaging effect is not so good.

In conjunction with aforementioned main line holographic projections technology at present, all have certain defective, therefore, the applicant has designed a kind of more special holographic projector, the patented claim of special proposition the utility model.

The utility model content:

The purpose of this utility model is to provide holographic projector at the deficiencies in the prior art, and it is simple in structure, can realize line holographic projections, and drop shadow effect is relatively good, and the beholder need can not watch by any device, is not subjected to any restriction; Can be widely used in various occasions.

For achieving the above object, the utility model adopts following technical scheme:

It comprises end screen, the projector of light-permeable, and screen top in the end is equipped with the projection screen of light-permeable, and end screen and projection screen are the mirror image structure, and projector is positioned at the below of end screen.

The quantity of described projection screen has a plurality of, and projection screen is stitched together, and the quantity of projector is corresponding with the quantity of projection screen, and the imaging region of end screen is also corresponding with projection screen, and the quantity of projector is corresponding with the quantity of projection screen.

Described projection screen has four, surrounds the inverted pyramid shape.

Described projector has four.

Screen of the described end has four imaging regions.

Described projector is connected with external control mechanism.

The beneficial effects of the utility model are, by projector with different image projection on end screen, image on the end screen reflects on projection screen again, and because screen is a printing opacity, so the beholder it seems, can form three-dimensional image in the space that each projection screen enclosed, stereoscopic sensation is very strong.

Description of drawings:

Fig. 1 is a structural representation of the present utility model

Embodiment:

Below in conjunction with accompanying drawing the utility model is further described.

See accompanying drawing 1, the utility model includes: the end screen 10 of light-permeable, projector 20, screen 10 tops in the end are equipped with the projection screen 30 of light-permeable, end screen 10, projection screen 30 all can printing opacities, and can image on the screen, end screen 10 is the mirror image structure with projection screen 30, and projector 20 is positioned at the below of end screen 10.

The preferable structure of the utility model is: described projection screen 30 has four, surrounds the inverted pyramid shape; Described projector 20 has four; Screen of the described end 10 has four imaging regions, respectively corresponding four projection screens 30 of these four imaging regions; Each projector 20 is with in the corresponding imaging region of image difference projection on end screen 10, and the image in the imaging region on the end screen 10 can be distinguished mirror image again on projection screen 30.

Described projector 20 is connected with external control mechanism 40, and external control mechanism 40 can be launched different projection materials by projector 20.

The inverted pyramid that each projection screen 30 is surrounded, screen need not be installed in its top, and the bottom of inverted pyramid is not necessarily closed, can lack drift angle, only need to guarantee that each projection screen 30 can enough show each image, guarantee that each image is complete and get final product, same, the pitch angle of projection screen 30 also can be different according to design, only need satisfy aforementioned requirement and get final product.

The utility model is to form the system that inverted pyramid type imaging region is constituted by end screen 10, projector 20, a plurality of projection screen 30, from 360 ° all considerable image that images in inverted pyramid type imaging region inside of seeing of unspecified angle on every side, be that subjectivity is seen face wherein with some projection screens 30.Each projection screen 30 all is furnished with a projector 20, from the below of end screen 10 image is carried out projection by projector 20, and projection screen 30 is provided with towards oblique below; The beholder watches the visual effect that obtains to be in the system outside: image is in the projection of pyramidal central authorities.

Each projection screen 30 can be fixedly installed on the framework, and end screen 10, projector 20 can be mounted in the casing.

The quantity of projection screen 30 of the present utility model also can be a plurality of, accordingly, the quantity of projector 20 is also corresponding with the quantity of projection screen 30, simultaneously, the imaging region of end screen 10 is also corresponding with projection screen 30, and the quantity of projector 20 is corresponding with the quantity of projection screen 30.

Allow the words of stereo-picture rotation of inverted pyramid internal imaging, need to adopt the material of various states,, can realize the rotation of inverted pyramid internal imaging through the successive projection of projector 20, if projection screen 30 is more, then also need further to debug.

The utility model does not need can see stereopsis by polarising glass by naked eyes; System installs simply, the projection material is made simply, can realize the stereoprojection of 360 ° of ring things; Be suitable for very much products propaganda, handicraft displaying, exhibition, fair, park, commerce, religion and other occasion, very strong appeal and very unique effect are arranged.

Projection light source of the present utility model is not limit, and can be that laser also can be other light sources.

Claims

1, holographic projector, it is characterized in that: it comprises end screen (10), the projector (20) of light-permeable, end screen (10) top is equipped with the projection screen (30) of light-permeable, end screen (10) is the mirror image structure with projection screen (30), and projector (20) is positioned at the below of end screen (10).

2, holographic projector according to claim 1, it is characterized in that: the quantity of described projection screen (30) has a plurality of, projection screen (30) is stitched together, the quantity of projector (20) is corresponding with the quantity of projection screen (30), the imaging region of end screen (10) is also corresponding with projection screen (30), and the quantity of projector (20) is corresponding with the quantity of projection screen (30).

3, holographic projector according to claim 1 and 2 is characterized in that: described projection screen (30) has four, surrounds the inverted pyramid shape.

4, holographic projector according to claim 3 is characterized in that: described projector (20) has four.

5, holographic projector according to claim 3 is characterized in that: screen of the described end (10) has four imaging regions.

6, holographic projector according to claim 1 and 2 is characterized in that: described projector (20) is connected with external control mechanism (40).