JPS55161210A - Light beam scanner - Google Patents
Light beam scannerInfo
- Publication number
- JPS55161210A JPS55161210A JP6792079A JP6792079A JPS55161210A JP S55161210 A JPS55161210 A JP S55161210A JP 6792079 A JP6792079 A JP 6792079A JP 6792079 A JP6792079 A JP 6792079A JP S55161210 A JPS55161210 A JP S55161210A
- Authority
- JP
- Japan
- Prior art keywords
- luminous flux
- disc
- concave mirror
- parallel
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Mechanical Optical Scanning Systems (AREA)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
Abstract
PURPOSE: To reduce cost, make wiring of a light source lighting circuit easy and enable the simplification of construction by providing a hologram lens disc, a motor which rotates this at an equal speed and a concave mirror.
CONSTITUTION: A hologram lens disc 7 is fixed at its central part to the shaft of a motor 1 and is so arranged as to be able to rotate at an equal speed about the axis running the central part and perpendicular to the disc 7 by the motor 1. The parallel laser beams 8 emitted from the laser light source not illustrated enter one of the discs 7 perpendicularly. At the P point of the figure, the once focused diffraction laser luminous flux becomes divergent laser luminous flux which then enters a concave mirror 5 and focuses toward the scanning plane 6. The scanning plane 6 is parallel to the rotating axis of the disc 7 and to scan the same linearly, the concave mirror 5 is so positioned that the center of curvature of the mirror face comes near the nondiffracted parallel laser luminous flux 80, and this simple necessitates determining the position of the concave mirror 5 in such a manner that the reflected luminous flux becomes approximately parallel to the disc 7 and passes near the parallel laser luminous flux 8.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6792079A JPS55161210A (en) | 1979-05-31 | 1979-05-31 | Light beam scanner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6792079A JPS55161210A (en) | 1979-05-31 | 1979-05-31 | Light beam scanner |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55161210A true JPS55161210A (en) | 1980-12-15 |
Family
ID=13358821
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6792079A Pending JPS55161210A (en) | 1979-05-31 | 1979-05-31 | Light beam scanner |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55161210A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57158827A (en) * | 1981-02-25 | 1982-09-30 | Benson Inc | Laser scanning system |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5284757A (en) * | 1975-12-31 | 1977-07-14 | Fujitsu Ltd | Optical scanner using hologram |
JPS52123635A (en) * | 1976-04-09 | 1977-10-18 | Ricoh Co Ltd | Optical scanner |
-
1979
- 1979-05-31 JP JP6792079A patent/JPS55161210A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5284757A (en) * | 1975-12-31 | 1977-07-14 | Fujitsu Ltd | Optical scanner using hologram |
JPS52123635A (en) * | 1976-04-09 | 1977-10-18 | Ricoh Co Ltd | Optical scanner |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57158827A (en) * | 1981-02-25 | 1982-09-30 | Benson Inc | Laser scanning system |
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