CA680532A - Thermally compensated plastic triplet lens - Google Patents
Thermally compensated plastic triplet lensInfo
- Publication number
- CA680532A CA680532A CA680532A CA680532DA CA680532A CA 680532 A CA680532 A CA 680532A CA 680532 A CA680532 A CA 680532A CA 680532D A CA680532D A CA 680532DA CA 680532 A CA680532 A CA 680532A
- Authority
- CA
- Canada
- Prior art keywords
- plastic
- thermally compensated
- triplet lens
- triplet
- lens
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA680532T |
Publications (1)
Publication Number | Publication Date |
---|---|
CA680532A true CA680532A (en) | 1964-02-18 |
Family
ID=35981612
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA680532A Expired CA680532A (en) | Thermally compensated plastic triplet lens |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA680532A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5557474A (en) * | 1995-05-26 | 1996-09-17 | Martin Marietta Corporation | Passive thermal compensation method and apparatus |
US5650879A (en) * | 1995-02-28 | 1997-07-22 | Konica Corporation | Lens apparatus |
US5757559A (en) * | 1994-07-05 | 1998-05-26 | Asahi Kogaku Kogyo Kabushi Ki Kaisha | Lens holding device |
-
0
- CA CA680532A patent/CA680532A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5757559A (en) * | 1994-07-05 | 1998-05-26 | Asahi Kogaku Kogyo Kabushi Ki Kaisha | Lens holding device |
US5650879A (en) * | 1995-02-28 | 1997-07-22 | Konica Corporation | Lens apparatus |
US5557474A (en) * | 1995-05-26 | 1996-09-17 | Martin Marietta Corporation | Passive thermal compensation method and apparatus |
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