JPS6430049A - Reel base device - Google Patents
Reel base deviceInfo
- Publication number
- JPS6430049A JPS6430049A JP62186200A JP18620087A JPS6430049A JP S6430049 A JPS6430049 A JP S6430049A JP 62186200 A JP62186200 A JP 62186200A JP 18620087 A JP18620087 A JP 18620087A JP S6430049 A JPS6430049 A JP S6430049A
- Authority
- JP
- Japan
- Prior art keywords
- reflection
- light
- sheet
- reel base
- pitch
- 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
Abstract
PURPOSE:To generate a high frequency signal with high accuracy inside a small space by adapting the reflection light method detecting a reflection light by providing a light emitting and receiving element at one side and using the shutter sheet eliminating the reduction of the resolution by the irregular reflection of a light of the reflection light method. CONSTITUTION:The title device is equipped with a reflection sheet 7 provided on the lower face of a reel base 1 and having a radial stripe pattern at a fixed pitch, the shutter sheet 13 having the grid like slit of the equal pitch to this stripe pitch, and the light emitting and receiving element 8 arranged for the reflection sheet 7 at the opposite side thereto by interposing this shutter sheet 13. An excellent reel base having in combination a high accuracy characteristic of the light transmitting system and a reduced space characteristic of the reflection light method is thus obtd.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62186200A JPS6430049A (en) | 1987-07-24 | 1987-07-24 | Reel base device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62186200A JPS6430049A (en) | 1987-07-24 | 1987-07-24 | Reel base device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6430049A true JPS6430049A (en) | 1989-01-31 |
Family
ID=16184131
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62186200A Pending JPS6430049A (en) | 1987-07-24 | 1987-07-24 | Reel base device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6430049A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5794955A (en) * | 1980-12-01 | 1982-06-12 | Nippon Kogaku Kk <Nikon> | Detector for rotation signal of head for vtr |
-
1987
- 1987-07-24 JP JP62186200A patent/JPS6430049A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5794955A (en) * | 1980-12-01 | 1982-06-12 | Nippon Kogaku Kk <Nikon> | Detector for rotation signal of head for vtr |
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