BE435152A - - Google Patents
Info
- Publication number
- BE435152A BE435152A BE435152DA BE435152A BE 435152 A BE435152 A BE 435152A BE 435152D A BE435152D A BE 435152DA BE 435152 A BE435152 A BE 435152A
- Authority
- BE
- Belgium
- Prior art keywords
- frame
- shutter
- chamber
- light
- desc
- Prior art date
Links
- 229920001342 Bakelite® Polymers 0.000 description 1
- 229920001875 Ebonite Polymers 0.000 description 1
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 1
- 239000004637 bakelite Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/02—Viewing or reading apparatus
- G02B27/022—Viewing apparatus
- G02B27/024—Viewing apparatus comprising a light source, e.g. for viewing photographic slides, X-ray transparancies
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Accommodation For Nursing Or Treatment Tables (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE435152A true BE435152A (OSRAM) |
Family
ID=94120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE435152D BE435152A (OSRAM) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE435152A (OSRAM) |
-
0
- BE BE435152D patent/BE435152A/fr unknown
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