GB953446A - Improvements in electric lamps particularly for endoscopes - Google Patents

Improvements in electric lamps particularly for endoscopes

Info

Publication number
GB953446A
GB953446A GB18279/60A GB1827960A GB953446A GB 953446 A GB953446 A GB 953446A GB 18279/60 A GB18279/60 A GB 18279/60A GB 1827960 A GB1827960 A GB 1827960A GB 953446 A GB953446 A GB 953446A
Authority
GB
United Kingdom
Prior art keywords
filament
envelope
tube
lamp
metal
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
GB18279/60A
Inventor
Harold Horace Hopkins
Edward Charles Howard
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.)
W Watson and Sons Ltd
Original Assignee
W Watson and Sons Ltd
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 W Watson and Sons Ltd filed Critical W Watson and Sons Ltd
Priority to GB18279/60A priority Critical patent/GB953446A/en
Publication of GB953446A publication Critical patent/GB953446A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/06—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
    • A61B1/0661—Endoscope light sources
    • A61B1/0669—Endoscope light sources at proximal end of an endoscope
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/28—Envelopes; Vessels
    • H01K1/34—Double wall vessels
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps

Abstract

953,446. Endoscopes. W. WATSON & SONS Ltd. May 24, 1961 [May 24, 1960], No. 18279/60. Heading A5R. [Also in Division H1] An electric lamp for an endoscope comprises a transparent glass envelope enclosing a filament and mounted on a metal connector member having a cylindrical part adjacent the envelope and of a diameter greater than the envelope, and a casing of transparent or translucent synthetic resin completely covering the envelope and having an outer diameter substantially equal to that of the metal connector so as to present a smooth exterior. The lamp may have a second filament for photographic examination. In the form shown, the envelope 1, Fig. 2, encloses a filament 11 for visual examination at one end and a second filament 10 for photographic use at the opposite end. A lead from the filament 10 passes to a central contact 16 and a lead from the filament 11 to a metal ring 14 insulated from the contact 16. The second lead from each filament is connected to a metal ring 13 insulated from the ring 14. The envelope 1 is enclosed in a casing 8 of synthetic resin having a diameter equal to the outer diameter of the ring 13, the leads from the filament 11 being embedded in the casing 8. The endoscope consists of an outer metal tube 20, Fig. 3, having an inclined end into which the base of the lamp 23 is screened. The tube 20 has a lateral aperture 26 and an axial aperture 28. An inner tube 24 having a lens system and a prism 25 opposite the aperture 26 is mounted inside the tube 20, the leads from the base contacts of the lamp passing down between the tubes 20, 24 to a connector 21. The tube 24 carries an eye piece 27 which may be replaced by means for connecting the tube to a photographic camera.
GB18279/60A 1960-05-24 1960-05-24 Improvements in electric lamps particularly for endoscopes Expired GB953446A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB18279/60A GB953446A (en) 1960-05-24 1960-05-24 Improvements in electric lamps particularly for endoscopes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB18279/60A GB953446A (en) 1960-05-24 1960-05-24 Improvements in electric lamps particularly for endoscopes

Publications (1)

Publication Number Publication Date
GB953446A true GB953446A (en) 1964-03-25

Family

ID=10109744

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18279/60A Expired GB953446A (en) 1960-05-24 1960-05-24 Improvements in electric lamps particularly for endoscopes

Country Status (1)

Country Link
GB (1) GB953446A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2365324A1 (en) * 1976-09-25 1978-04-21 Wolf Gmbh Richard PHOTO-ENDOSCOPE INCLUDING AN ELECTRONIC LIGHTNING TUBE PLACED AT THE DISTAL END.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2365324A1 (en) * 1976-09-25 1978-04-21 Wolf Gmbh Richard PHOTO-ENDOSCOPE INCLUDING AN ELECTRONIC LIGHTNING TUBE PLACED AT THE DISTAL END.

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