GB913504A - Apparatus for the simultaneous observation of an incandescent spot and a relatively cool surrounding area - Google Patents

Apparatus for the simultaneous observation of an incandescent spot and a relatively cool surrounding area

Info

Publication number
GB913504A
GB913504A GB4313/61A GB431361A GB913504A GB 913504 A GB913504 A GB 913504A GB 4313/61 A GB4313/61 A GB 4313/61A GB 431361 A GB431361 A GB 431361A GB 913504 A GB913504 A GB 913504A
Authority
GB
United Kingdom
Prior art keywords
incandescent
spot
filter
light
observation
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
GB4313/61A
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.)
Carl Zeiss AG
Original Assignee
Carl Zeiss 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 Carl Zeiss AG filed Critical Carl Zeiss AG
Publication of GB913504A publication Critical patent/GB913504A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/30—Electron-beam or ion-beam tubes for localised treatment of objects
    • H01J37/3002—Details
    • H01J37/3005—Observing the objects or the point of impact on the object
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K15/00—Electron-beam welding or cutting
    • B23K15/0013—Positioning or observing workpieces, e.g. with respect to the impact; Aligning, aiming or focusing electronbeams
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/02—Viewing or reading apparatus
    • G02B27/022—Viewing apparatus
    • G02B27/024—Viewing apparatus comprising a light source, e.g. for viewing photographic slides, X-ray transparancies
    • G02B27/025—Viewing apparatus comprising a light source, e.g. for viewing photographic slides, X-ray transparancies and magnifying means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
  • Radiation Pyrometers (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)

Abstract

913,504. Apparatus for viewing incandescent spots and their surroundings. ZEISS-STIFTUNG, CARL, [trading as ZEISS, C., [Firm of]]. Feb. 6, 1961 [Feb. 6, 1960], No. 4313/61. Class 97 (1). [Also in Group XL (a)] Apparatus for simultaneous observation of an incandescent spot and its surroundings comprises a source of visible light of short wavelength, said wavelength being shorter than the wavelength of the principle emission from said incandescent spot, means to focus said light on the area under observation, said area including said incandescent spot, and means for observing said illuminated area, said observation means including a filter passing only light of said short wavelength, said filter being placed in the path of the observation rays. In the apparatus shown, workpieces 8 and 9 on movable guides 10, 11 are to be welded together using an electron beam produced by means comprising a cathode 1, a control electrode 2, an anode 3, a diaphragm 5 and an electromagnetic focusing lens 6. The apparatus for simultaneously observing the incandescent spot produced by the electron beam 4 and its surroundings comprises a source 16 (such as a mercury vapour lamp) of short wavelength visible light, a lens 17 for focusing this light on to the area surrounding said incandescent spot, and observation means comprising mirrors 18, 19, lenses 20, 21 and a filter 25 passing only light of said short wavelength, an image of the spot being focused, for example, on to the photo-cathode of a television camera 22. Preferably the filter 25 passes only a narrow band width and may comprise an interference-layer filter. The lens 20 and mirror 18 are movable vertically for focusing. The apparatus is sealed in an air-tight enclosure 7 which may be evacuated through a pipe 12.
GB4313/61A 1960-02-06 1961-02-06 Apparatus for the simultaneous observation of an incandescent spot and a relatively cool surrounding area Expired GB913504A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEZ7801A DE1113100B (en) 1960-02-06 1960-02-06 Observation device for charge carrier jet devices

Publications (1)

Publication Number Publication Date
GB913504A true GB913504A (en) 1962-12-19

Family

ID=7620267

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4313/61A Expired GB913504A (en) 1960-02-06 1961-02-06 Apparatus for the simultaneous observation of an incandescent spot and a relatively cool surrounding area

Country Status (5)

Country Link
US (1) US3092727A (en)
CH (1) CH395374A (en)
DE (1) DE1113100B (en)
GB (1) GB913504A (en)
NL (1) NL260910A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4334139A (en) * 1979-06-12 1982-06-08 U.S. Philips Corporation Apparatus for writing patterns in a layer on a substrate by means of a beam of electrically charged particles

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3267250A (en) * 1963-04-19 1966-08-16 United Aircraft Corp Adaptive positioning device
GB1065060A (en) * 1963-04-19 1967-04-12 United Aircraft Corp Improvements in and relating to apparatus for working articles with energised beams
GB1053518A (en) * 1963-06-20
FR1373096A (en) * 1963-07-30 1964-09-25 Centre Nat Rech Scient Materialization of an optical pointing by laser beam, in particular on machine tools
FR1377335A (en) * 1963-07-30 1964-11-06 Centre Nat Rech Scient Adaptation of laser heads on mechanical assemblies, in particular on microscopes
US3396262A (en) * 1963-11-28 1968-08-06 Nippon Electric Co Means for observing electron beams
JPS59218977A (en) * 1983-05-27 1984-12-10 Fuji Photo Film Co Ltd Radiant ray measuring tool
JPS60247106A (en) * 1984-05-22 1985-12-06 Fujitsu Ltd Configuration inspecting apparatus
SE521787C2 (en) 2002-04-05 2003-12-09 Volvo Aero Corp Device and method for controlling a welding area, arrangement and method for controlling a welding operation, computer program and computer program product

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2046999A (en) * 1933-10-10 1936-07-07 Gen Electric Arc welding
GB491165A (en) * 1936-12-10 1938-08-29 Hans Lewin Improvements relating to the viewing of pictures so as to obtain increased range of contrast
US2178211A (en) * 1937-04-23 1939-10-31 Paper Chemistry Inst Optical apparatus
BE476264A (en) * 1942-10-03
US2465713A (en) * 1944-05-01 1949-03-29 Rca Corp Method of producing hardened optical coatings by electron bombardment
DE913098C (en) * 1950-06-13 1954-06-08 Erwin Kuhfuss Arrangement of pins for attaching protective covers u. like
DE918538C (en) * 1950-10-03 1954-09-30 Loewe Radio Inc Process for positive viewing of photographic negatives
DE1038794B (en) * 1954-01-08 1958-09-11 Otto Meerkamm Process for making a photographic negative visible as a positive on a luminescent screen covered with extinguishing phosphors
FR1142493A (en) * 1956-01-30 1957-09-18 Filter glasses for fluorescent tubes and cathode ray tubes
DE1754217U (en) * 1956-08-27 1957-10-17 Josef Helmuth Danzer DEVICE FOR REVERSING THE DEGREE OF BRIGHTNESS OF LIGHT.
NL240710A (en) * 1958-07-01

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4334139A (en) * 1979-06-12 1982-06-08 U.S. Philips Corporation Apparatus for writing patterns in a layer on a substrate by means of a beam of electrically charged particles

Also Published As

Publication number Publication date
DE1113100B (en) 1961-08-24
NL260910A (en)
CH395374A (en) 1965-07-15
US3092727A (en) 1963-06-04

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