Title:
RECORDING DEVICE FOR DIFFRACTION GRATING AND METHOD OF RECORDING STEREO OR PLANE IMAGE
Document Type and Number:
WIPO Patent Application WO/2000/026702
Kind Code:
A1
Abstract:
This invention relates to a device for making diffraction grating optical interference pattern and method of recording stereo or plane image. An optical lens group diminish image onto a recordingmedium or its vicinity by using optical modulator to show image and transform image wave into interfence amplitude wave, and has a reference beam projector which beam direction is controllable. This invention may be operated by single step and is easy to alternate operation system or as the same time to combine two operation form to make same diffraction grating, improving hologram anticounterfeit function, forming hologram elements without superimposed each other, greatly increasing the visibility of products.
Inventors:
SHAO XIAOJING (CN)
Application Number:
PCT/CN1999/000181
Publication Date:
May 11, 2000
Filing Date:
November 04, 1999
Export Citation:
Assignee:
SHAO XIAOJING (CN)
International Classes:
G02B5/18; G03H1/30; (IPC1-7): G02B5/18; G03H1/26
Domestic Patent References:
| WO1997046898A1 | 1997-12-11 |
Foreign References:
| US3408656A | 1968-10-29 | |||
| JPH097216A | 1997-01-10 |
Other References:
See also references of EP 1132758A4
Attorney, Agent or Firm:
BEIJING PATENT AGENCY (Xizhimen Nandajie Xicheng District, Beijing 5, CN)
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