JPH0313651B2 - - Google Patents
Info
- Publication number
- JPH0313651B2 JPH0313651B2 JP57094508A JP9450882A JPH0313651B2 JP H0313651 B2 JPH0313651 B2 JP H0313651B2 JP 57094508 A JP57094508 A JP 57094508A JP 9450882 A JP9450882 A JP 9450882A JP H0313651 B2 JPH0313651 B2 JP H0313651B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- optical path
- prism
- case
- side optical
- 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.)
- Expired - Lifetime
Links
- 230000003287 optical effect Effects 0.000 claims description 42
- 230000000694 effects Effects 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000005236 sound signal Effects 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Head (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57094508A JPS58211339A (ja) | 1982-06-01 | 1982-06-01 | 光方式情報読取装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57094508A JPS58211339A (ja) | 1982-06-01 | 1982-06-01 | 光方式情報読取装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58211339A JPS58211339A (ja) | 1983-12-08 |
| JPH0313651B2 true JPH0313651B2 (https=) | 1991-02-25 |
Family
ID=14112254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57094508A Granted JPS58211339A (ja) | 1982-06-01 | 1982-06-01 | 光方式情報読取装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58211339A (https=) |
-
1982
- 1982-06-01 JP JP57094508A patent/JPS58211339A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58211339A (ja) | 1983-12-08 |
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