BE362129A - - Google Patents
Info
- Publication number
- BE362129A BE362129A BE362129DA BE362129A BE 362129 A BE362129 A BE 362129A BE 362129D A BE362129D A BE 362129DA BE 362129 A BE362129 A BE 362129A
- Authority
- BE
- Belgium
- Prior art keywords
- tube
- screen
- fixed
- observer
- exterior
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 claims description 14
- 230000000007 visual effect Effects 0.000 claims description 3
- 239000005337 ground glass Substances 0.000 claims description 2
- 238000002955 isolation Methods 0.000 claims 1
- 238000005192 partition Methods 0.000 claims 1
- 239000011521 glass Substances 0.000 description 6
- 239000005338 frosted glass Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000001473 noxious 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
- G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
- G02B23/2407—Optical details
Landscapes
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Publications (1)
Publication Number | Publication Date |
---|---|
BE362129A true BE362129A (enrdf_load_stackoverflow) |
Family
ID=35093
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE362129D BE362129A (enrdf_load_stackoverflow) |
Country Status (1)
Country | Link |
---|---|
BE (1) | BE362129A (enrdf_load_stackoverflow) |
-
0
- BE BE362129D patent/BE362129A/fr unknown
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