JPS6430049A - Reel base device - Google Patents

Reel base device

Info

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
Application number
JP62186200A
Other languages
Japanese (ja)
Inventor
Tomio Yamamoto
Haruaki Nakagawa
Shuji Nakame
Shinichi Tanaka
Tetsuji Yoshii
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP62186200A priority Critical patent/JPS6430049A/en
Publication of JPS6430049A publication Critical patent/JPS6430049A/en
Pending legal-status Critical Current

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.
JP62186200A 1987-07-24 1987-07-24 Reel base device Pending JPS6430049A (en)

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)

* Cited by examiner, † Cited by third party
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
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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