FR753360A - Method for obtaining a horizontal divergence of the light rays emitted by lighting projectors - Google Patents
Method for obtaining a horizontal divergence of the light rays emitted by lighting projectorsInfo
- Publication number
- FR753360A FR753360A FR753360DA FR753360A FR 753360 A FR753360 A FR 753360A FR 753360D A FR753360D A FR 753360DA FR 753360 A FR753360 A FR 753360A
- Authority
- FR
- France
- Prior art keywords
- obtaining
- light rays
- rays emitted
- horizontal divergence
- lighting projectors
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/26—Screens; Filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/28—Cover glass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/285—Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24 - F21S41/2805
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
- F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof
- F21S41/435—Hoods or cap-shaped
-
- 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
-
- 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
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
- F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR753360T | 1932-07-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR753360A true FR753360A (en) | 1933-10-14 |
Family
ID=9001174
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR753360D Expired FR753360A (en) | 1932-07-18 | 1932-07-18 | Method for obtaining a horizontal divergence of the light rays emitted by lighting projectors |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE646126C (en) |
FR (1) | FR753360A (en) |
GB (1) | GB404223A (en) |
SE (1) | SE89523C1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1156906B (en) * | 1978-02-27 | 1987-02-04 | Iao Industrie Riunite Spa | MOTORCYCLE LIGHT |
-
1932
- 1932-07-18 FR FR753360D patent/FR753360A/en not_active Expired
-
1933
- 1933-04-20 DE DES109091D patent/DE646126C/en not_active Expired
- 1933-07-14 GB GB19989/33A patent/GB404223A/en not_active Expired
- 1933-07-17 SE SE298633A patent/SE89523C1/xx unknown
Also Published As
Publication number | Publication date |
---|---|
SE89523C1 (en) | 1937-06-22 |
DE646126C (en) | 1937-06-10 |
GB404223A (en) | 1934-01-11 |
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