DE229456C - - Google Patents
Info
- Publication number
- DE229456C DE229456C DENDAT229456D DE229456DA DE229456C DE 229456 C DE229456 C DE 229456C DE NDAT229456 D DENDAT229456 D DE NDAT229456D DE 229456D A DE229456D A DE 229456DA DE 229456 C DE229456 C DE 229456C
- Authority
- DE
- Germany
- Prior art keywords
- telescope
- stand
- lookout
- reducing
- telescopes
- 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.)
- Active
Links
- 238000007906 compression Methods 0.000 claims description 2
- 230000000576 supplementary Effects 0.000 claims 1
- 239000011800 void material Substances 0.000 claims 1
- 239000002965 rope Substances 0.000 description 4
- 230000003287 optical Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-N Carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 241000031711 Cytophagaceae Species 0.000 description 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 230000001681 protective Effects 0.000 description 1
- 230000001105 regulatory Effects 0.000 description 1
- 230000003319 supportive Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/02—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices involving prisms or mirrors
- G02B23/08—Periscopes
Landscapes
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Telescopes (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE229456C true DE229456C (ja) |
Family
ID=489759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT229456D Active DE229456C (ja) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE229456C (ja) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2522280A (en) * | 1948-02-07 | 1950-09-12 | Kollmorgen Optical Corp | Periscope mount |
| US3052151A (en) * | 1957-11-05 | 1962-09-04 | Commissariat Energie Atomique | Devices for protection against ionizing radiation and contamination by harmful dusts, for apparatus for observing the interior of sealed chambers |
| US4398811A (en) * | 1979-07-06 | 1983-08-16 | Olympus Optical Co., Ltd. | Viewing-direction changing optical system |
-
0
- DE DENDAT229456D patent/DE229456C/de active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2522280A (en) * | 1948-02-07 | 1950-09-12 | Kollmorgen Optical Corp | Periscope mount |
| US3052151A (en) * | 1957-11-05 | 1962-09-04 | Commissariat Energie Atomique | Devices for protection against ionizing radiation and contamination by harmful dusts, for apparatus for observing the interior of sealed chambers |
| US4398811A (en) * | 1979-07-06 | 1983-08-16 | Olympus Optical Co., Ltd. | Viewing-direction changing optical system |
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