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GB454131A - Improvements in and relating to lamp reflectors - Google Patents

Improvements in and relating to lamp reflectors

Info

Publication number
GB454131A
GB454131A GB5527/36A GB552736A GB454131A GB 454131 A GB454131 A GB 454131A GB 5527/36 A GB5527/36 A GB 5527/36A GB 552736 A GB552736 A GB 552736A GB 454131 A GB454131 A GB 454131A
Authority
GB
United Kingdom
Prior art keywords
rays
lenses
ribs
focus
class
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
GB5527/36A
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 GB454131A publication Critical patent/GB454131A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/20—Electrically-operated jacquards
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

454,131. Lamp reflectors and lenses. DIETRICH, F. R., 42, General von Eppstrasse, Pasing, near Munich, Germany. Feb. 24, 1936, No. 5527. Convention date, March 4, 1935. [Class 75 (ii)] A lamp reflector comprises a truncated paraboloidal part A joined to the rim of an ellipsoidal part B having its foci far apart, one focus F coinciding with that of the paraboloidal part and the other focus being outside the front of the reflector. The convergent and parallel rays S, S<1> projected by the parts B, A may be separately distributed by lenses C, D, having vertical prismatic or cylindrical bosses or ribs on one face, the rays S<1> producing a beam around the central beam produced by the rays S or vice versa. Arcuate prismatic or cylindrical bosses or ribs may also be provided on the lower part of the annular. lens D to produce ground-light. Specification 8123/04, [Class 75], is referred to.
GB5527/36A 1935-03-04 1936-02-24 Improvements in and relating to lamp reflectors Expired GB454131A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE454131X 1935-03-04

Publications (1)

Publication Number Publication Date
GB454131A true GB454131A (en) 1936-09-24

Family

ID=6538870

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5527/36A Expired GB454131A (en) 1935-03-04 1936-02-24 Improvements in and relating to lamp reflectors

Country Status (2)

Country Link
FR (1) FR454131A (en)
GB (1) GB454131A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1054934B (en) * 1954-08-03 1959-04-16 Westfaelische Metall Industrie Motor vehicle signal light
EP0402740A2 (en) * 1989-06-13 1990-12-19 Tetsuhiro Kano Reflector for a lamp and method to determine the shape of a reflector

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1054934B (en) * 1954-08-03 1959-04-16 Westfaelische Metall Industrie Motor vehicle signal light
EP0402740A2 (en) * 1989-06-13 1990-12-19 Tetsuhiro Kano Reflector for a lamp and method to determine the shape of a reflector
EP0402740A3 (en) * 1989-06-13 1991-12-11 Tetsuhiro Kano Reflector for a lamp and method to determine the shape of a reflector
US5136491A (en) * 1989-06-13 1992-08-04 Tetsuhiro Kano Reflector for a lamp and method of determining the form of a reflector

Also Published As

Publication number Publication date
FR454131A (en) 1913-06-26

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