DE288835C - - Google Patents
Info
- Publication number
- DE288835C DE288835C DENDAT288835D DE288835DA DE288835C DE 288835 C DE288835 C DE 288835C DE NDAT288835 D DENDAT288835 D DE NDAT288835D DE 288835D A DE288835D A DE 288835DA DE 288835 C DE288835 C DE 288835C
- Authority
- DE
- Germany
- Prior art keywords
- prisms
- wave
- reflector
- prism
- double
- 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
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 239000005401 pressed glass Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 3
- 230000001771 impaired effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 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 |
|---|---|
| DE288835C true DE288835C (enrdf_load_stackoverflow) |
Family
ID=543917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT288835D Active DE288835C (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE288835C (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0178019A1 (en) * | 1984-10-09 | 1986-04-16 | Koninklijke Philips Electronics N.V. | Illumination unit |
-
0
- DE DENDAT288835D patent/DE288835C/de active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0178019A1 (en) * | 1984-10-09 | 1986-04-16 | Koninklijke Philips Electronics N.V. | Illumination unit |
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