GB453705A - An improved paraboloidal reflector - Google Patents
An improved paraboloidal reflectorInfo
- Publication number
- GB453705A GB453705A GB8114/35A GB811435A GB453705A GB 453705 A GB453705 A GB 453705A GB 8114/35 A GB8114/35 A GB 8114/35A GB 811435 A GB811435 A GB 811435A GB 453705 A GB453705 A GB 453705A
- Authority
- GB
- United Kingdom
- Prior art keywords
- projections
- reflector
- depressions
- heads
- bases
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
- F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
- F04B37/14—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high vacuum
- F04B37/16—Means for nullifying unswept space
-
- 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
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
453,705. Lamp reflectors. NIER, R., Beierfeld, Erzgeb, Germany. March 15, 1935, No. 8114. Convention date, Feb. 25. [Class 75 (ii)] The inner surface of a paraboloidal reflector for light projectors, with the exception of the upper quadrant I through the centre of which the vertical axial plane GH of the reflector passes, is provided withdepressions or projections e<3> ... e' to reflect light from the light source transversely to the axis of the reflector. The depressions or projections in the side quadrants II, III may be arranged at random; and those in the lower quadrant IV in concentric arcs. The depressions or projections may be spherical segments, or shaped as shown in Fig. 4, with plane bases or heads f and short walls. The bases or heads f may be arranged at angles alpha, # to the tangential planes 1, 1 of the reflector. Corresponding arrangements of the depressions or projections when they are spherical segments are described.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE453705X | 1935-02-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB453705A true GB453705A (en) | 1936-09-15 |
Family
ID=6538813
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8114/35A Expired GB453705A (en) | 1935-02-25 | 1935-03-15 | An improved paraboloidal reflector |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB453705A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1005462B (en) * | 1953-11-11 | 1957-04-04 | Siemens Ag | Aluminum mirror reflector for electric lights |
DE2647889A1 (en) * | 1976-10-22 | 1978-04-27 | Sassmannshausen Knut | Motor vehicle safety or signalling light - has light strength decreasing systematically with increase in angle from reflector axis |
DE2837928A1 (en) * | 1977-09-12 | 1979-03-22 | Sassmannshausen Knut | LAMP |
GB2121947A (en) * | 1982-06-09 | 1984-01-04 | Cibie Projecteurs | Dipped headlamp for automobiles |
-
1935
- 1935-03-15 GB GB8114/35A patent/GB453705A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1005462B (en) * | 1953-11-11 | 1957-04-04 | Siemens Ag | Aluminum mirror reflector for electric lights |
DE2647889A1 (en) * | 1976-10-22 | 1978-04-27 | Sassmannshausen Knut | Motor vehicle safety or signalling light - has light strength decreasing systematically with increase in angle from reflector axis |
DE2837928A1 (en) * | 1977-09-12 | 1979-03-22 | Sassmannshausen Knut | LAMP |
DE2839253A1 (en) * | 1977-09-12 | 1979-03-29 | Sassmannshausen Knut | LAMP |
GB2121947A (en) * | 1982-06-09 | 1984-01-04 | Cibie Projecteurs | Dipped headlamp for automobiles |
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