Title:
HOLOGRAPHIC SCANNER
Document Type and Number:
Japanese Patent JPS58223115
Kind Code:
A
Abstract:
PURPOSE: To enable the production of a hologram suited for mass production, by disposing an imaging lens so as to increase further the angle of exit light with respect to the axial line direction of the revolving shaft of a rotary disc.
CONSTITUTION: A titled scanner consists of a hologram 2 recorded with a pattern consisting of a diffraction grating on a rotary disc 1 and an imaging lens 10 provided on the exit side of the light beam from the hologram 2. The lens 10 is so disposed as to increase further the angle of the exit light with respect to the axial line direction of the revolving shaft 2 of the disc 1.
Inventors:
KAWAMURA NAOTO
TANMACHI MASAHIRO
KUWAYAMA TETSUO
TANMACHI MASAHIRO
KUWAYAMA TETSUO
Application Number:
JP10746282A
Publication Date:
December 24, 1983
Filing Date:
June 21, 1982
Export Citation:
Assignee:
CANON KK
International Classes:
G02B5/32; G02B26/10; H04N1/113; (IPC1-7): G02B5/32; G02B27/17; H04N1/04
Attorney, Agent or Firm:
Hibiya Masahiko