DE189550C - - Google Patents
Info
- Publication number
- DE189550C DE189550C DENDAT189550D DE189550DA DE189550C DE 189550 C DE189550 C DE 189550C DE NDAT189550 D DENDAT189550 D DE NDAT189550D DE 189550D A DE189550D A DE 189550DA DE 189550 C DE189550 C DE 189550C
- Authority
- DE
- Germany
- Prior art keywords
- reflector
- drum
- horizontal plane
- telescope part
- movement
- 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
- 230000003287 optical effect Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 description 2
- 241000031711 Cytophagaceae Species 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000001681 protective effect Effects 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 |
|---|---|
| DE189550C true DE189550C (cs) |
Family
ID=453085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT189550D Active DE189550C (cs) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE189550C (cs) |
-
0
- DE DENDAT189550D patent/DE189550C/de active Active
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