GB878640A - Improvements in or relating to electronic flash lamps - Google Patents

Improvements in or relating to electronic flash lamps

Info

Publication number
GB878640A
GB878640A GB3271/59A GB327159A GB878640A GB 878640 A GB878640 A GB 878640A GB 3271/59 A GB3271/59 A GB 3271/59A GB 327159 A GB327159 A GB 327159A GB 878640 A GB878640 A GB 878640A
Authority
GB
United Kingdom
Prior art keywords
passage
light
casing
focusing
discharge tube
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
GB3271/59A
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.)
Bron Elektronik AG
Original Assignee
Bron Elektronik AG
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 Bron Elektronik AG filed Critical Bron Elektronik AG
Publication of GB878640A publication Critical patent/GB878640A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/84—Lamps with discharge constricted by high pressure
    • H01J61/90—Lamps suitable only for intermittent operation, e.g. flash lamp
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K5/00—Light sources using charges of combustible material, e.g. illuminating flash devices
    • F21K5/02—Light sources using charges of combustible material, e.g. illuminating flash devices ignited in a non-disrupting container, e.g. photo-flash bulb
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • G03B15/02—Illuminating scene
    • G03B15/03—Combinations of cameras with lighting apparatus; Flash units
    • G03B15/05—Combinations of cameras with electronic flash apparatus; Electronic flash units
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/02—Exposure apparatus for contact printing
    • G03B27/14—Details
    • G03B27/16—Illumination arrangements, e.g. positioning of lamps, positioning of reflectors
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B2215/00—Special procedures for taking photographs; Apparatus therefor
    • G03B2215/05—Combinations of cameras with electronic flash units
    • G03B2215/0514—Separate unit
    • G03B2215/0517—Housing
    • G03B2215/0525—Reflector
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B2215/00—Special procedures for taking photographs; Apparatus therefor
    • G03B2215/05—Combinations of cameras with electronic flash units
    • G03B2215/0514—Separate unit
    • G03B2215/0517—Housing
    • G03B2215/0525—Reflector
    • G03B2215/0532—Flashtube mounting
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B2215/00—Special procedures for taking photographs; Apparatus therefor
    • G03B2215/05—Combinations of cameras with electronic flash units
    • G03B2215/0589—Diffusors, filters or refraction means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

878,640. Lamps for focusing and reproduction. BRON ELEKTRONIK A.G. Jan. 29, 1959 [Jan. 30, 1958], No. 3271/59. Class 75(4). [Also in Group XX] A casing is provided with a passage for the light rays of a discharge tube for photographic reproduction and of a focusing light source, the discharge tube being bent back several times to form a serpentine in at least one plane extending parallel to the area of the passage. As shown, the casing 1 with light-passage 2 is closed by a heat-protective filter 4 in guard rails 3, the side of the filter facing the interior of the casing being ground or frosted, and the edges thereof being overlapped by diaphragm members 5 which may be adjusted to the size of a translucent image 6 in front of light passage 2. Behind the diaphragm 5 is an opaline dish 7 which together with discharge tubes 8 is held in place by device 9, and then reflecting slide 13 removable by handle 14, ground glass plate 16, focusing lamps 17 formed like the tubes 8 and to shine through them, and finally mirror 19. The discharge tubes 8 are of the form of Fig. 2, one being laterally displaced with respect to the other to let the light from the rear one freely to arrive at the passage 2. A single tube of such formation may, however, be used. A similar construction but using a cylindrically or spirally coiled discharge tube together with an incandescent lamp located in a reflector is referred to.
GB3271/59A 1958-01-30 1959-01-29 Improvements in or relating to electronic flash lamps Expired GB878640A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH878640X 1958-01-30

Publications (1)

Publication Number Publication Date
GB878640A true GB878640A (en) 1961-10-04

Family

ID=4544646

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3271/59A Expired GB878640A (en) 1958-01-30 1959-01-29 Improvements in or relating to electronic flash lamps

Country Status (2)

Country Link
CH (1) CH355028A (en)
GB (1) GB878640A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009010571A1 (en) * 2007-07-18 2009-01-22 Bron Elektronik Ag Illumination device for flash photography

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3619601A (en) * 1968-10-28 1971-11-09 Grace W R & Co Method and apparatus for posterior photocuring

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009010571A1 (en) * 2007-07-18 2009-01-22 Bron Elektronik Ag Illumination device for flash photography
US8128247B2 (en) 2007-07-18 2012-03-06 Bron Elektronik Ag Illumination device for flash photography

Also Published As

Publication number Publication date
CH355028A (en) 1961-06-15

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