JPS6160408B2 - - Google Patents
Info
- Publication number
- JPS6160408B2 JPS6160408B2 JP8781081A JP8781081A JPS6160408B2 JP S6160408 B2 JPS6160408 B2 JP S6160408B2 JP 8781081 A JP8781081 A JP 8781081A JP 8781081 A JP8781081 A JP 8781081A JP S6160408 B2 JPS6160408 B2 JP S6160408B2
- Authority
- JP
- Japan
- Prior art keywords
- lens
- temperature
- changes
- bimetal
- focus
- 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
- 230000003287 optical effect Effects 0.000 description 14
- 239000000463 material Substances 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/028—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with means for compensating for changes in temperature or for controlling the temperature; thermal stabilisation
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8781081A JPS57202507A (en) | 1981-06-08 | 1981-06-08 | Lens holder of interlens space changing with temperature |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8781081A JPS57202507A (en) | 1981-06-08 | 1981-06-08 | Lens holder of interlens space changing with temperature |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57202507A JPS57202507A (en) | 1982-12-11 |
JPS6160408B2 true JPS6160408B2 (enrdf_load_stackoverflow) | 1986-12-20 |
Family
ID=13925327
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8781081A Granted JPS57202507A (en) | 1981-06-08 | 1981-06-08 | Lens holder of interlens space changing with temperature |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57202507A (enrdf_load_stackoverflow) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5298443B2 (ja) * | 2006-03-24 | 2013-09-25 | コニカミノルタ株式会社 | 投射レンズユニット |
JP2017049490A (ja) * | 2015-09-03 | 2017-03-09 | 株式会社リコー | 投射光学系、投射装置及び屈折光学系ユニット |
-
1981
- 1981-06-08 JP JP8781081A patent/JPS57202507A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS57202507A (en) | 1982-12-11 |