JPS565521A - Light scanning disc and its manufacture - Google Patents
Light scanning disc and its manufactureInfo
- Publication number
- JPS565521A JPS565521A JP8117179A JP8117179A JPS565521A JP S565521 A JPS565521 A JP S565521A JP 8117179 A JP8117179 A JP 8117179A JP 8117179 A JP8117179 A JP 8117179A JP S565521 A JPS565521 A JP S565521A
- Authority
- JP
- Japan
- Prior art keywords
- light
- blazed
- mask
- grating
- photosensitive material
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 239000000463 material Substances 0.000 abstract 4
- 239000011295 pitch Substances 0.000 abstract 3
- 230000003287 optical effect Effects 0.000 abstract 2
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 229920002120 photoresistant polymer Polymers 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
Landscapes
- Mechanical Optical Scanning Systems (AREA)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
Abstract
PURPOSE: To perfrom laser beam linear scanning at high conversion efficiency to scanning beam by the light scanning disc comprising recording the diffraction grating being the saw tooth waves of the pitches continuously changing in the circumferential direction and of the shape satisfying blazed conditions on a circumference.
CONSTITUTION: Light 7 radiated from a light source 6 is applied on a mask 8 for manufacturing a blazed grating and the radiated light pattern 10 thereof is entered by an optical system 9 to a photosensitive material 11. The mask 8 has the opening of saw tooth waves and the photosensitive material 11 is made by coating photoresist on e.g. a glass substrate. The photosensitive material 11 is rotated in the Y direction of the mask 8 by a motor 12 and continuous exposure is given to this while changing the size of the radiated light pattern 10 by the optical system 9, whereby a light scanning disc 11 is made. The saw tooth wave blazed grating of arbitrary pitches may be exposed and recorded continuously on the material disc 11 depending upon the magnification and scale-down of the pattern 10 and the blazed conditions are satisfied by changing the exposure according to the change in the pitch of the grating.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8117179A JPS565521A (en) | 1979-06-27 | 1979-06-27 | Light scanning disc and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8117179A JPS565521A (en) | 1979-06-27 | 1979-06-27 | Light scanning disc and its manufacture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS565521A true JPS565521A (en) | 1981-01-21 |
| JPS6321171B2 JPS6321171B2 (en) | 1988-05-06 |
Family
ID=13739002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8117179A Granted JPS565521A (en) | 1979-06-27 | 1979-06-27 | Light scanning disc and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS565521A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH038044U (en) * | 1989-06-12 | 1991-01-25 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5313403A (en) * | 1976-07-22 | 1978-02-07 | Nec Corp | Optical disc for scanning |
-
1979
- 1979-06-27 JP JP8117179A patent/JPS565521A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5313403A (en) * | 1976-07-22 | 1978-02-07 | Nec Corp | Optical disc for scanning |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6321171B2 (en) | 1988-05-06 |
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