GB1292582A - Pocket torch - Google Patents

Pocket torch

Info

Publication number
GB1292582A
GB1292582A GB0381/70A GB138170A GB1292582A GB 1292582 A GB1292582 A GB 1292582A GB 0381/70 A GB0381/70 A GB 0381/70A GB 138170 A GB138170 A GB 138170A GB 1292582 A GB1292582 A GB 1292582A
Authority
GB
United Kingdom
Prior art keywords
parabolic mirrors
areas
torch
annular
reflecting
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
GB0381/70A
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.)
Braun GmbH
Original Assignee
Braun GmbH
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 Braun GmbH filed Critical Braun GmbH
Publication of GB1292582A publication Critical patent/GB1292582A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L4/00—Electric lighting devices with self-contained electric batteries or cells
    • 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
    • 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
    • F21V7/048—Optical design with facets structure
    • 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
    • F21V7/06—Optical design with parabolic curvature

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

1292582 Electric torch BRAUN AG 12 Jan 1970 [14 Jan 1969] 1381/70 Heading F4R A disc shaped battery torch has a reflector 22 which comprises a plurality of effectively reflecting areas 23, 24, of differing focal length but common focal point, the reflecting areas being parabolic mirrors separated by plane non- reflecting areas 26, 27 arranged at such an angle that they receive no light from the bulb 5 which is situated at the focus of the parabolic mirrors, and additional reflectors 30 on the dish shaped cover glass 4 having the same focal point as the parabolic mirrors. These additional reflectors may be annular prisms. The parabolic mirrors may have various other configurations than annular strips, such as parallel extending strips of parabolic mirror, Fig. 4, not shown, or segmental areas, Fig. 5, not shown. In another embodiment the additional reflectors are annular and carried on arms, Figs. 10, 11 not shown, this arrangement being fitted between the parabolic mirrors and the cover glass. The casing may also be rectangular in plan with segmental parabolic mirrors. In a further embodiment, Fig. 9, not shown, the torch has batteries rechargeable by means of solar cells positioned at the non- reflecting plane areas of the reflector 22.
GB0381/70A 1969-01-14 1970-01-12 Pocket torch Expired GB1292582A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU57776 1969-01-14

Publications (1)

Publication Number Publication Date
GB1292582A true GB1292582A (en) 1972-10-11

Family

ID=19725871

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0381/70A Expired GB1292582A (en) 1969-01-14 1970-01-12 Pocket torch

Country Status (11)

Country Link
JP (1) JPS4936596B1 (en)
AT (2) AT299378B (en)
CH (1) CH516119A (en)
CS (1) CS163200B2 (en)
DE (1) DE1963234B2 (en)
ES (1) ES184328Y (en)
FR (1) FR2028282A1 (en)
GB (1) GB1292582A (en)
LU (1) LU57776A1 (en)
PL (1) PL69856B1 (en)
YU (1) YU33497B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2198830A (en) * 1985-06-27 1988-06-22 Sassmannshausen Knut Flat pocket-type torch with a concave mirror reflector
GB2402002A (en) * 2003-05-21 2004-11-24 James Patrick Greene Self charging torch

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2833299A1 (en) * 1978-07-28 1980-02-14 Patra Patent Treuhand Motor vehicle headlight, hand-held signalling lamp, etc. - comprises halogen bulb and reflector inside opaque nylon casting composed of cover, middle part and bottom

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2198830A (en) * 1985-06-27 1988-06-22 Sassmannshausen Knut Flat pocket-type torch with a concave mirror reflector
GB2198830B (en) * 1985-06-27 1991-02-20 Sassmannshausen Knut Flat pocket-type torch with a concave mirror reflector
GB2402002A (en) * 2003-05-21 2004-11-24 James Patrick Greene Self charging torch

Also Published As

Publication number Publication date
DE1963234B2 (en) 1972-02-10
LU57776A1 (en) 1970-01-15
ES184328U (en) 1973-10-16
YU33497B (en) 1977-04-30
AT300120B (en) 1972-06-15
PL69856B1 (en) 1973-10-31
AT299378B (en) 1972-06-12
ES184328Y (en) 1974-06-01
JPS4936596B1 (en) 1974-10-02
FR2028282A1 (en) 1970-10-09
DE1963234A1 (en) 1970-07-16
CS163200B2 (en) 1975-08-29
CH516119A (en) 1971-11-30
YU5670A (en) 1976-10-31

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee