FR1601564A - - Google Patents
Info
- Publication number
- FR1601564A FR1601564A FR173843A FR1601564DA FR1601564A FR 1601564 A FR1601564 A FR 1601564A FR 173843 A FR173843 A FR 173843A FR 1601564D A FR1601564D A FR 1601564DA FR 1601564 A FR1601564 A FR 1601564A
- Authority
- FR
- France
- 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.)
- Expired
Links
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
- F21V5/04—Refractors for light sources of lens shape
- F21V5/045—Refractors for light sources of lens shape the lens having discontinuous faces, e.g. Fresnel lenses
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/28—Envelopes; Vessels
- H01K1/30—Envelopes; Vessels incorporating lenses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Optical Elements Other Than Lenses (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR173843 | 1968-11-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1601564A true FR1601564A (en) | 1970-08-31 |
Family
ID=8656898
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR173843A Expired FR1601564A (en) | 1968-11-15 | 1968-11-15 |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE1956636A1 (en) |
FR (1) | FR1601564A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1985004280A1 (en) * | 1984-03-14 | 1985-09-26 | Allen-Bradley Company | Indicator light assembly for control panel |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3324028A1 (en) * | 1983-07-04 | 1985-01-17 | Christian 8000 München Bartenbach | Luminaire having a light source of high luminance |
FI865301A (en) * | 1986-01-02 | 1987-07-03 | Rca Corp | MED EN FRESNEL-LINS FOERSEDD KAOPA FOER BELYSNINGSANORDNING. |
DE3827834A1 (en) * | 1988-08-17 | 1990-02-22 | Reitter & Schefenacker Kg | Fresnel lens |
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1968
- 1968-11-15 FR FR173843A patent/FR1601564A/fr not_active Expired
-
1969
- 1969-11-11 DE DE19691956636 patent/DE1956636A1/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1985004280A1 (en) * | 1984-03-14 | 1985-09-26 | Allen-Bradley Company | Indicator light assembly for control panel |
Also Published As
Publication number | Publication date |
---|---|
DE1956636A1 (en) | 1970-06-11 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |