HOLOGRAM PROJECTION SCREEN AND ITS MANUFACTURING METHOD AND SYSTEM AS WELL AS ITS APPLICATIONS

Abstract

The present invention provides a hologram projection screen and its manufacturing method and system as well as its applications. The present hologram projection screen includes a screen body, wherein an array of hologram lenses are arranged onto said screen body, the hologram lenses are arranged equably onto the screen body vertically and horizontally, adjacently to each other. The hologram lenses have a circular or elliptical shape in said screen body, or have a regular polygonal shape in said screen body. The hologram lens may be a set of lenses. The method for manufacturing hologram projection screen according to the present invention includes the steps of: 1) recording hologram lens information on photoresist plate; 2) metalizing the photoresist plate that has been exposed, to produce the nickel master plate of hologram lens array through electroforming and recombining; 3) using the above master plate to embossing thermoplastic material, to obtain screen body, on which the information of hologram lens array are arranged. The present invention can provide a variety of display contents.

Description

BRIEF DESCRIPTIONS OF THE DRAWINGS

FIG. 1 displays an optical structure of the present manufacturing system;

FIG. 2 displays a principle of recording information of the present hologram lens;

FIG. 3 displays a general flowchart of a manufacturing method of the present invention;

FIG. 4 displays the detailed flowchart of manufacturing method of the present invention;

FIG. 5 displays the information arrangement of the present hologram lens array;

FIG. 6 displays an exemplary (circular) shape of the present hologram lens array in the screen body;

FIG. 7 displays an exemplary (square) shape of the present hologram lens array in the screen body;

FIG. 8 displays an exemplary (regular hexagon) shape of the present hologram lens array in the screen body;

FIG. 9 displays an exemplary projection and imaging of the present invention;

FIG. 10 displays an exemplary application of the present invention;

FIG. 11 displays an exemplary application of the present invention;

FIG. 12 displays a viewing state of a viewer's eye in the present invention;

FIG. 13 displays an exemplary hologram of images containing a plurality of stereoscopic image pairs displayed on a screen body;

FIG. 14 displays a viewer's eyes watching images containing a plurality of stereoscopic image pairs (Planform).

Claims

1. A hologram projection screen, including a screen body, and characterized in that: an array of hologram lenses are arranged onto said screen body.

2. A hologram projection screen according to claim 1, wherein said hologram lenses are arranged equally onto said screen body vertically and horizontally.

3. A hologram projection screen according to claim 2, wherein said hologram lenses are arranged onto the screen body adjacent to each other.

4. A hologram projection screen according to claim 2, wherein said hologram lenses have a circular or elliptical shape in said screen body.

5. A hologram projection screen according to claim 2, wherein said hologram lenses have a regular polygonal shape in said screen body.

6. A hologram projection screen according to claim 2, wherein each of said hologram lenses may be a set of lenses.

7. A method for manufacturing a hologram projection screen, including the steps of: 1) Recording hologram lens information on a photoresist plate;2) Metalizing the photoresist plate that has been exposed, to produce a nickel master of the hologram lens array through electroforming and recombining;3) Using the above master plastic plate to emboss thermoplastic material, to obtain a screen body, on which the information of the hologram lens array are arranged.

8. A method for manufacturing hologram projection screen according to claim 7, wherein said step 1) includes the steps of: a) dividing a laser beam into two paths by a beam divider, one path is used to obtain the objective light of the lens, the other path is used as a reference light, the objective light and the reference light converge onto the photoresist with an angle therebetween, to expose the photoresist;b) a computer controls the on/off of a shutter and the movement of the photoresist plate, to make the on/off of the shutter of the camera harmonize with the movement of the photoresist plate, thereby equally recording the information of a plurality of hologram lens on the photoresist plate.

9. A method for manufacturing a hologram projection screen according to claim 7, wherein said thermoplastic material used in step 3) is transparent material.

10. A method for manufacturing a hologram projection screen according to claim 9, wherein said thermoplastic material may be polyester, polyvinyl chloride, polycarbonate or biaxial oriented polypropylene.

11. A method for manufacturing a hologram projection screen according to any one of claims 7-10, wherein said method further includes following step 4) after step 3): 4) Coating a protection layer on the array of hologram lenses after embossing.

12. A method for manufacturing hologram projection screen according to claim 11, wherein in said step 4), said protection layer is a layer made up of transparent or semi-transparent medium.

13. A method for manufacturing hologram projection screen according to claim 11, wherein in said step 4), said protection layer is a layer made up of metal reflective material.

14. A system for manufacturing a hologram projection screen, comprising a computer, a laser generator, a shutter, a beam divider, lens and photoresist plate, wherein: said laser generator emits a laser beam that is divided into two paths by said beam divider, one of said paths is used to obtain the objective light of the lens and the other of said paths is used as a reference light, the objective light and said reference light converge onto said photoresist plate with an angle therebetween;said shutter is arranged in front of said laser beam and is used to control the exposure of the objective light and the reference light on said photoresist plate;said computer controls the on/off of said shutter, the exposure degree and the movement of said optical etching plastic plate, to make the on/off of said shutter harmonize with the movement of said photoresist plate.

15. A system for manufacturing a hologram projection screen according to claim 14, wherein said system further includes two spatial filters, arranged in the path of the objective light and the reference light separately, to filter the corresponding light.

16. A system for manufacturing a hologram projection screen according to claim 15, wherein said spatial filters include a beam expander and a pinhole, said beam expander being arranged in front of said pinhole.

17. An application method of a hologram projection screen, characterized in that, opposite to the side of viewing position, which is on one side of screen body, a particular object is positioned on the other side of the screen body.

18. An application method of hologram projection screen, characterized in that, in the images projected by the projector to the screen body, the information of the images is composed of a series of stereoscopic image pairs in the same code.

19. A hologram projection screen comprising a screen body and an array of hologram lenses equally arranged on said screen body horizontally and vertically.

20. A method for manufacturing a hologram projection screen, comprising the steps of: dividing a laser beam into two paths by a beam divider, one path being used to obtain objective light of the lens and the other path being used as a reference light, the objective light and the reference light converging onto a photoresist plate;opening and closing a shutter to control passage of the objective light and the reference light and exposure of the photoresist;controlling by computer the shutter opening and closing and movement of said photoresist plate to make the shutter opening and closing harmonize with the movement of said photoresist plate; andrepeating steps of: exposing one position of said photoresist plate, moving said photoresist plate and exposing another position of said photoresist plate, until information of a plurality of hologram lenses is recorded onto said photoresist plate.

21. A system for manufacturing a hologram projection screen, comprising: a laser;a lens;a photoresist plate;a beam divider adapted to divide the laser beam into two paths, one path being used to obtain objective light of the lens and the other path being used as a reference light, the objective light and the reference light converging onto said photoresist plate;a shutter adapted to open and close to control passage of the objective light and the reference light and exposure of the photoresist; anda computer adapted to control the opening and closing of said shutter and the movement of said photoresist plate to make the shutter opening and closing harmonize with the movement of said photoresist plate.