GB1039955A - Device for preserving the transparency of optical elements in a contaminating atmosphere - Google Patents

Device for preserving the transparency of optical elements in a contaminating atmosphere

Info

Publication number
GB1039955A
GB1039955A GB17096/65A GB1709665A GB1039955A GB 1039955 A GB1039955 A GB 1039955A GB 17096/65 A GB17096/65 A GB 17096/65A GB 1709665 A GB1709665 A GB 1709665A GB 1039955 A GB1039955 A GB 1039955A
Authority
GB
United Kingdom
Prior art keywords
tube
preserving
transparency
april
objective
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
GB17096/65A
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.)
Glaces de Boussois SA
Original Assignee
Glaces de Boussois SA
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 Glaces de Boussois SA filed Critical Glaces de Boussois SA
Publication of GB1039955A publication Critical patent/GB1039955A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G02B27/0006—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means to keep optical surfaces clean, e.g. by preventing or removing dirt, stains, contamination, condensation
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C23/00—Other surface treatment of glass not in the form of fibres or filaments
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/0044—Furnaces, ovens, kilns
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/02—Constructional details
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/02—Constructional details
    • G01J5/04—Casings
    • G01J5/041—Mountings in enclosures or in a particular environment
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/02—Constructional details
    • G01J5/05—Means for preventing contamination of the components of the optical system; Means for preventing obstruction of the radiation path
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/02—Constructional details
    • G01J5/05—Means for preventing contamination of the components of the optical system; Means for preventing obstruction of the radiation path
    • G01J5/051—Means for preventing contamination of the components of the optical system; Means for preventing obstruction of the radiation path using a gas purge
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/02—Constructional details
    • G01J5/08—Optical arrangements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/02—Constructional details
    • G01J5/08—Optical arrangements
    • G01J5/0818—Waveguides

Abstract

1,039,955. Optical apparatus. GLACES DE BOUSSOIS. April 22,1965 [April 24,1964],No. 17096/65. Heading G2J. [Also in Division G1] The objective 6 of a sighting telescope, optical pyrometer 5 or other optical instrument is protected from a contaminating atmosphere by providing a cylindrical inner tube 1 of substantially the same diameter as objective 6 and a frustoconical outer tube 2 tapering towards tube 1 at its far end and terminating at 14 just short of tube 1, the space 15 between the tubes being supplied with gas under pressure. As shown a gas bottle 23 is connected through filter 25 and pressure-reducing valve 24 to a pipe 22 leading through flexible pipes 21 to a number of inlets 19 of an annular supply chamber 16.
GB17096/65A 1964-04-24 1965-04-22 Device for preserving the transparency of optical elements in a contaminating atmosphere Expired GB1039955A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR972153A FR1401424A (en) 1964-04-24 1964-04-24 Method and device for maintaining the transparency of optical parts in a dirty atmosphere

Publications (1)

Publication Number Publication Date
GB1039955A true GB1039955A (en) 1966-08-24

Family

ID=8828576

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17096/65A Expired GB1039955A (en) 1964-04-24 1965-04-22 Device for preserving the transparency of optical elements in a contaminating atmosphere

Country Status (2)

Country Link
FR (1) FR1401424A (en)
GB (1) GB1039955A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2341845A1 (en) * 1976-02-17 1977-09-16 Svenska Rotor Maskiner Ab HEAT EXCHANGER CONTAINING AN INFRARED RAY DETECTOR USED TO DETECT HOT POINTS
US4205550A (en) * 1979-03-12 1980-06-03 Econics Corporation Sample chamber for gas analyzer
US4206630A (en) * 1979-03-12 1980-06-10 Econics Corporation Sample chamber for gas analyzer
EP0039706A1 (en) * 1979-11-20 1981-11-18 Avco Corp Air purging unit for an optical pyrometer of a gas turbine engine.
FR2494844A1 (en) * 1980-11-24 1982-05-28 Deutag Mischwerke & Fertighaus RADIATION SENSOR FOR MEASURING THE TEMPERATURES OF HOT BULK MATERIALS, ESPECIALLY BITUMINOUS COATINGS
GB2127174A (en) * 1982-09-14 1984-04-04 Freiberg Brennstoffinst Periscope for high-temperature reactor
US4443072A (en) * 1982-04-05 1984-04-17 The United States Of America As Represented By The United States Department Of Energy Purged window apparatus utilizing heated purge gas
EP0138390A2 (en) * 1983-10-17 1985-04-24 The Babcock & Wilcox Company Isolation of optical surfaces from contaminating environments
GB2233114A (en) * 1989-06-06 1991-01-02 Inst Nat Sciences Appliq Protecting laser focusing system from particles using a vortex
US5115342A (en) * 1991-02-26 1992-05-19 Philip Morris Incorporated Laminar flow dust shield for wide angle lens
EP0685716A1 (en) * 1994-06-03 1995-12-06 Land Instruments International Limited Purge assembly
DE102013102816A1 (en) * 2013-03-19 2014-09-25 Carl Zeiss Industrielle Messtechnik Gmbh Optical measuring device, in particular autocollimation telescope, with reduced measurement deviation
EP3617692A1 (en) * 2018-08-31 2020-03-04 Vaisala Oyj System for protecting an optical system
WO2021099821A1 (en) * 2019-11-21 2021-05-27 Arcelormittal Device for protecting a means for measuring a parameter of a distant element, and method for making the device

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2341845A1 (en) * 1976-02-17 1977-09-16 Svenska Rotor Maskiner Ab HEAT EXCHANGER CONTAINING AN INFRARED RAY DETECTOR USED TO DETECT HOT POINTS
US4205550A (en) * 1979-03-12 1980-06-03 Econics Corporation Sample chamber for gas analyzer
US4206630A (en) * 1979-03-12 1980-06-10 Econics Corporation Sample chamber for gas analyzer
EP0039706A1 (en) * 1979-11-20 1981-11-18 Avco Corp Air purging unit for an optical pyrometer of a gas turbine engine.
EP0039706A4 (en) * 1979-11-20 1982-03-29 Avco Corp Air purging unit for an optical pyrometer of a gas turbine engine.
FR2494844A1 (en) * 1980-11-24 1982-05-28 Deutag Mischwerke & Fertighaus RADIATION SENSOR FOR MEASURING THE TEMPERATURES OF HOT BULK MATERIALS, ESPECIALLY BITUMINOUS COATINGS
US4443072A (en) * 1982-04-05 1984-04-17 The United States Of America As Represented By The United States Department Of Energy Purged window apparatus utilizing heated purge gas
GB2127174A (en) * 1982-09-14 1984-04-04 Freiberg Brennstoffinst Periscope for high-temperature reactor
AT394277B (en) * 1982-09-14 1992-02-25 Freiberg Brennstoffinst PERISCOPE FOR HIGH TEMPERATURE REACTORS
AU567967B2 (en) * 1983-10-17 1987-12-10 International Control Automation Finance Sa Optical window purge arrangement
EP0138390A3 (en) * 1983-10-17 1985-11-21 The Babcock & Wilcox Company Isolation of optical surfaces from contaminating environments
EP0138390A2 (en) * 1983-10-17 1985-04-24 The Babcock & Wilcox Company Isolation of optical surfaces from contaminating environments
GB2233114A (en) * 1989-06-06 1991-01-02 Inst Nat Sciences Appliq Protecting laser focusing system from particles using a vortex
US5115342A (en) * 1991-02-26 1992-05-19 Philip Morris Incorporated Laminar flow dust shield for wide angle lens
EP0685716A1 (en) * 1994-06-03 1995-12-06 Land Instruments International Limited Purge assembly
US5599105A (en) * 1994-06-03 1997-02-04 Land Instruments International Limited Purge assembly
DE102013102816A1 (en) * 2013-03-19 2014-09-25 Carl Zeiss Industrielle Messtechnik Gmbh Optical measuring device, in particular autocollimation telescope, with reduced measurement deviation
DE102013102816B4 (en) * 2013-03-19 2016-03-24 Carl Zeiss Industrielle Messtechnik Gmbh Optical measuring device, in particular autocollimation telescope, with reduced measurement deviation
EP3617692A1 (en) * 2018-08-31 2020-03-04 Vaisala Oyj System for protecting an optical system
US11774749B2 (en) 2018-08-31 2023-10-03 Vaisala Oyj System for protecting an optical system
WO2021099821A1 (en) * 2019-11-21 2021-05-27 Arcelormittal Device for protecting a means for measuring a parameter of a distant element, and method for making the device

Also Published As

Publication number Publication date
FR1401424A (en) 1965-06-04

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