CA1275731C - Tete optique a lentille holographique et a polariseurs pour support magneto-optique - Google Patents
Tete optique a lentille holographique et a polariseurs pour support magneto-optiqueInfo
- Publication number
- CA1275731C CA1275731C CA000539248A CA539248A CA1275731C CA 1275731 C CA1275731 C CA 1275731C CA 000539248 A CA000539248 A CA 000539248A CA 539248 A CA539248 A CA 539248A CA 1275731 C CA1275731 C CA 1275731C
- Authority
- CA
- Canada
- Prior art keywords
- laser
- medium
- photodetector
- diffracted
- optical head
- 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 title claims abstract description 93
- 239000004065 semiconductor Substances 0.000 claims abstract description 33
- 230000010287 polarization Effects 0.000 claims description 17
- 230000005291 magnetic effect Effects 0.000 claims description 16
- 239000000758 substrate Substances 0.000 claims description 6
- 230000002730 additional effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 9
- 230000008859 change Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 6
- 229920002120 photoresistant polymer Polymers 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 201000009310 astigmatism Diseases 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 235000021438 curry Nutrition 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 230000005415 magnetization Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000013500 data storage Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 206010010071 Coma Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Optical Head (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000539248A CA1275731C (fr) | 1987-06-09 | 1987-06-09 | Tete optique a lentille holographique et a polariseurs pour support magneto-optique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000539248A CA1275731C (fr) | 1987-06-09 | 1987-06-09 | Tete optique a lentille holographique et a polariseurs pour support magneto-optique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1275731C true CA1275731C (fr) | 1990-10-30 |
Family
ID=4135855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000539248A Expired - Lifetime CA1275731C (fr) | 1987-06-09 | 1987-06-09 | Tete optique a lentille holographique et a polariseurs pour support magneto-optique |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1275731C (fr) |
-
1987
- 1987-06-09 CA CA000539248A patent/CA1275731C/fr not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |