JPS57148704A - Optical transmitter for both rotor and non-rotor - Google Patents
Optical transmitter for both rotor and non-rotorInfo
- Publication number
- JPS57148704A JPS57148704A JP56034979A JP3497981A JPS57148704A JP S57148704 A JPS57148704 A JP S57148704A JP 56034979 A JP56034979 A JP 56034979A JP 3497981 A JP3497981 A JP 3497981A JP S57148704 A JPS57148704 A JP S57148704A
- Authority
- JP
- Japan
- Prior art keywords
- cable
- rolled
- optical
- rotor
- width
- 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
- 230000003287 optical effect Effects 0.000 title abstract 3
- 239000013307 optical fiber Substances 0.000 abstract 3
- 230000003247 decreasing effect Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
- G02B6/4457—Bobbins; Reels
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Insulated Conductors (AREA)
Abstract
PURPOSE:To decrease the spiral outer diameter when a cable is rolled up tight and to realize a small size of structure for a titled transmitter, by forming both a lengthwise thick part and a thin part to the cable with a space secured in the cable width direction and obtaining uneven surfaces for both sides of an optical cable. CONSTITUTION:An optical cable 3 consists of plural optical fibers 14, plural springy members 15 serving both as tension-resistant members, and an outer sheath 16. Then thick and thin parts 17 and 18 are formed alternately to the cable 3 with a space secured in the width direction of the cable 3. An optical fiber 14 and a member 15 are put adjacent to each other in a part 17, and at the same time the width d2 of the part 17 is smaller than the width d3 of the part 18. Such the cable 3 is spirally set between the outer circumference of a core shaft 1 and the inner circumference of a casing 2 and then rolled up. Thus the upper and lower sides of the cable 3 have contact with each other, and the part 17 slided onto the part 18. As a resut, the spiral outer diameter is decreased when the optical fiber is rolled up tight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56034979A JPS57148704A (en) | 1981-03-11 | 1981-03-11 | Optical transmitter for both rotor and non-rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56034979A JPS57148704A (en) | 1981-03-11 | 1981-03-11 | Optical transmitter for both rotor and non-rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57148704A true JPS57148704A (en) | 1982-09-14 |
Family
ID=12429258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56034979A Pending JPS57148704A (en) | 1981-03-11 | 1981-03-11 | Optical transmitter for both rotor and non-rotor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57148704A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0214701B1 (en) * | 1985-09-11 | 1992-03-04 | Philips Patentverwaltung GmbH | Surplus-length box for an optical fibre |
-
1981
- 1981-03-11 JP JP56034979A patent/JPS57148704A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0214701B1 (en) * | 1985-09-11 | 1992-03-04 | Philips Patentverwaltung GmbH | Surplus-length box for an optical fibre |
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