GB453705A - An improved paraboloidal reflector - Google Patents

An improved paraboloidal reflector

Info

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
Application number
GB8114/35A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB453705A publication Critical patent/GB453705A/en
Expired legal-status Critical Current

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.
GB8114/35A 1935-02-25 1935-03-15 An improved paraboloidal reflector Expired GB453705A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (5)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
GB453705A (en) An improved paraboloidal reflector
GB456520A (en) Improvements in or relating to lamps, searchlights, projectors and the like
GB532914A (en) Improvements in and relating to electric therapeutic lamps
GB566189A (en) Luminaires
US2109990A (en) Luminaire
GB437001A (en) Improvements in lamps with lenses and reflectors
US1553338A (en) Reflector
GB411170A (en) Improvements in and relating to projector lamp systems
GB433787A (en) Improvements in and relating to illuminating devices
GB489010A (en) Improvements in and relating to luminairs
GB530492A (en) Improvements in optical systems comprising reflectors and linear light sources
GB428057A (en) Improvements in or relating to illuminating devices
GB451332A (en) Improvements in and relating to illuminating appliances
GB484428A (en) Improvements in and relating to refractors for street lighting purposes
GB536771A (en) Improvements in and relating to lanterns
GB458139A (en) Improvements in or relating to directional lighting fittings
GB474141A (en) Improvements in and relating to luminairs
GB288694A (en) Improvements in light signals
GB454131A (en) Improvements in and relating to lamp reflectors
GB536773A (en) Improvements in and relating to electric lighting fittings
GB283029A (en) Improvements in and relating to traffic signals
GB800350A (en) Improvements in miniature electric incandescent lamps
GB587884A (en) Improvements in or relating to glare or dazzle preventing devices
GB292867A (en) Improvements in and relating to illuminating and signalling appliances
GB427254A (en) Improvements in or relating to electric lamps