GB1603704A - Mirror having a variable focal length - Google Patents
Mirror having a variable focal length Download PDFInfo
- Publication number
- GB1603704A GB1603704A GB1503178A GB1503178A GB1603704A GB 1603704 A GB1603704 A GB 1603704A GB 1503178 A GB1503178 A GB 1503178A GB 1503178 A GB1503178 A GB 1503178A GB 1603704 A GB1603704 A GB 1603704A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mirror
- multilayer structure
- zone
- reflecting surface
- layer
- 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
- 239000000463 material Substances 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 6
- 238000007790 scraping Methods 0.000 claims description 6
- 230000007547 defect Effects 0.000 claims description 5
- 230000005281 excited state Effects 0.000 claims description 5
- 239000000758 substrate Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 2
- 230000004075 alteration Effects 0.000 description 4
- 239000004020 conductor Substances 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 229910010293 ceramic material Inorganic materials 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 206010010071 Coma Diseases 0.000 description 2
- 206010073261 Ovarian theca cell tumour Diseases 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 208000001644 thecoma Diseases 0.000 description 2
- 238000003462 Bender reaction Methods 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 241000206607 Porphyra umbilicalis Species 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000009828 non-uniform distribution Methods 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/10—Construction
- F21V7/16—Construction with provision for adjusting the curvature
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/0816—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements
- G02B26/0825—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements the reflecting element being a flexible sheet or membrane, e.g. for varying the focus
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Optical Elements Other Than Lenses (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
- Mechanical Optical Scanning Systems (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
- Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7712800A FR2389145A1 (fr) | 1977-04-27 | 1977-04-27 | Miroir a focale variable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1603704A true GB1603704A (en) | 1981-11-25 |
Family
ID=9190008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1503178A Expired GB1603704A (en) | 1977-04-27 | 1978-04-17 | Mirror having a variable focal length |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS53135346A (enrdf_load_stackoverflow) |
| DE (1) | DE2817239A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2389145A1 (enrdf_load_stackoverflow) |
| GB (1) | GB1603704A (enrdf_load_stackoverflow) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2453423A1 (fr) * | 1979-04-04 | 1980-10-31 | Quantel Sa | Element optique epais a courbure variable |
| FR2472198A1 (fr) * | 1979-12-20 | 1981-06-26 | Anvar | Miroirs astronomiques et reseaux aspheriques semi-encastres et procede de fabrication par flexion elastique |
| FR2496380A1 (fr) * | 1980-12-15 | 1982-06-18 | Thomson Csf | Dispositif piezoresistif a commande electrique |
| JPS58181033A (ja) * | 1982-04-16 | 1983-10-22 | Canon Inc | 照射角可変電子閃光装置 |
| JP2506973Y2 (ja) * | 1992-09-04 | 1996-08-14 | 八郎 桝野 | 地図型ペ―パウエイト |
| DE102008041287A1 (de) | 2007-08-24 | 2009-02-26 | Carl Zeiss Smt Ag | Kraftaktuator |
-
1977
- 1977-04-27 FR FR7712800A patent/FR2389145A1/fr active Granted
-
1978
- 1978-04-17 GB GB1503178A patent/GB1603704A/en not_active Expired
- 1978-04-20 DE DE19782817239 patent/DE2817239A1/de not_active Ceased
- 1978-04-26 JP JP4969678A patent/JPS53135346A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2389145A1 (fr) | 1978-11-24 |
| FR2389145B1 (enrdf_load_stackoverflow) | 1981-11-27 |
| JPS53135346A (en) | 1978-11-25 |
| DE2817239A1 (de) | 1978-11-02 |
| JPH0381132B2 (enrdf_load_stackoverflow) | 1991-12-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |