BE663746A - - Google Patents
Info
- Publication number
- BE663746A BE663746A BE663746DA BE663746A BE 663746 A BE663746 A BE 663746A BE 663746D A BE663746D A BE 663746DA BE 663746 A BE663746 A BE 663746A
- Authority
- BE
- Belgium
- Prior art keywords
- recesses
- plate according
- plate
- conical
- pyramidal
- Prior art date
Links
- 239000000463 material Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 230000000051 modifying effect Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920003217 poly(methylsilsesquioxane) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920005553 polystyrene-acrylate Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000012780 transparent material Substances 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
- F21V5/00—Refractors for light sources
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Optical Elements Other Than Lenses (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE663746A true BE663746A (enrdf_load_stackoverflow) |
Family
ID=207558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE663746D BE663746A (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE663746A (enrdf_load_stackoverflow) |
-
0
- BE BE663746D patent/BE663746A/fr unknown
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