CA1073100A - Dispositif de focalisation dynamique de lentille d'objectif de lecteur de disque video - Google Patents
Dispositif de focalisation dynamique de lentille d'objectif de lecteur de disque videoInfo
- Publication number
- CA1073100A CA1073100A CA314,703A CA314703A CA1073100A CA 1073100 A CA1073100 A CA 1073100A CA 314703 A CA314703 A CA 314703A CA 1073100 A CA1073100 A CA 1073100A
- Authority
- CA
- Canada
- Prior art keywords
- disc
- head
- objective lens
- read head
- path
- 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
Links
- 230000033001 locomotion Effects 0.000 claims abstract description 16
- 230000003287 optical effect Effects 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 19
- 239000012530 fluid Substances 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 230000004044 response Effects 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 230000007812 deficiency Effects 0.000 abstract 1
- 230000005855 radiation Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 230000004304 visual acuity Effects 0.000 description 1
Landscapes
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA314,703A CA1073100A (fr) | 1972-10-24 | 1978-10-30 | Dispositif de focalisation dynamique de lentille d'objectif de lecteur de disque video |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00299893A US3829622A (en) | 1972-10-24 | 1972-10-24 | Video disc player with variably biased pneumatic head |
| CA314,703A CA1073100A (fr) | 1972-10-24 | 1978-10-30 | Dispositif de focalisation dynamique de lentille d'objectif de lecteur de disque video |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1073100A true CA1073100A (fr) | 1980-03-04 |
Family
ID=25668807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA314,703A Expired CA1073100A (fr) | 1972-10-24 | 1978-10-30 | Dispositif de focalisation dynamique de lentille d'objectif de lecteur de disque video |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1073100A (fr) |
-
1978
- 1978-10-30 CA CA314,703A patent/CA1073100A/fr not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |