FR1401424A - Method and device for maintaining the transparency of optical parts in a dirty atmosphere - Google Patents

Method and device for maintaining the transparency of optical parts in a dirty atmosphere

Info

Publication number
FR1401424A
FR1401424A FR972153A FR972153A FR1401424A FR 1401424 A FR1401424 A FR 1401424A FR 972153 A FR972153 A FR 972153A FR 972153 A FR972153 A FR 972153A FR 1401424 A FR1401424 A FR 1401424A
Authority
FR
France
Prior art keywords
transparency
maintaining
optical parts
dirty atmosphere
dirty
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
FR972153A
Other languages
French (fr)
Inventor
Jacques Duchateau
Jean Dubuissez
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
Priority to FR972153A priority Critical patent/FR1401424A/en
Priority to GB17096/65A priority patent/GB1039955A/en
Application granted granted Critical
Publication of FR1401424A publication Critical patent/FR1401424A/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
FR972153A 1964-04-24 1964-04-24 Method and device for maintaining the transparency of optical parts in a dirty atmosphere Expired FR1401424A (en)

Priority Applications (2)

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
GB17096/65A GB1039955A (en) 1964-04-24 1965-04-22 Device for preserving the transparency of optical elements in a contaminating atmosphere

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
FR1401424A true FR1401424A (en) 1965-06-04

Family

ID=8828576

Family Applications (1)

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

Country Status (2)

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

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4022270A (en) * 1976-02-17 1977-05-10 The Air Preheater Company, Inc. Fire detector scanning arrangement
US4206630A (en) * 1979-03-12 1980-06-10 Econics Corporation Sample chamber for gas analyzer
US4205550A (en) * 1979-03-12 1980-06-03 Econics Corporation Sample chamber for gas analyzer
US4306835A (en) * 1979-11-20 1981-12-22 Avco Corporation Air purging unit for an optical pyrometer of a gas turbine engine
DE3044104A1 (en) * 1980-11-24 1982-06-03 Deutag-Mischwerke & Fertighaus GmbH, 5000 Köln RADIATION SENSORS FOR MEASURING TEMPERATURES OF HEATED DEGREE MATERIALS, ESPECIALLY BITUMINOUS MIXED MATERIAL
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
DD219059A3 (en) * 1982-09-14 1985-02-20 Freiberg Brennstoffinst PERISKOP FOR HIGH-TEMPERATURE REACTORS
US4521089A (en) * 1983-10-17 1985-06-04 The Babcock & Wilcox Company Optical window purge arrangement
DE3918363A1 (en) * 1989-06-06 1990-12-13 Inst Nat Sciences Appliq DEVICE FOR A POWER LASER
US5115342A (en) * 1991-02-26 1992-05-19 Philip Morris Incorporated Laminar flow dust shield for wide angle lens
GB9411160D0 (en) * 1994-06-03 1994-07-27 Land Infrared Ltd Improvements relating to radiation thermometers
DE102013102816B4 (en) * 2013-03-19 2016-03-24 Carl Zeiss Industrielle Messtechnik Gmbh Optical measuring device, in particular autocollimation telescope, with reduced measurement deviation
EP3617692B1 (en) * 2018-08-31 2022-09-28 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
GB1039955A (en) 1966-08-24

Similar Documents

Publication Publication Date Title
FR1401424A (en) Method and device for maintaining the transparency of optical parts in a dirty atmosphere
FR1196635A (en) Device for guiding the weft thread in looms and looms provided with said device
MY7400104A (en) Liquid crystal electro-optic device
GB1241772A (en) Improvements in or relating to the edging of optical lenses
FR1516009A (en) Method and automatic device for calculating the amount of purchases in stores
FR1421151A (en) Method and device for polishing points
FR1425727A (en) Method and device for removing the casing of rod-shaped articles
FR1454703A (en) Transparent glass in the infrared
CH483629A (en) Device for regulating the concentration of optically transparent solutions
FR1494344A (en) Method and device for air purification
FR1234391A (en) Light source in the far ultraviolet
CH437852A (en) Optical filtering process in space and device for implementing this process
CH485493A (en) Device for the treatment of moving threads with liquid
FR1417048A (en) Method and apparatus for optical filtration in space
FR1546776A (en) Device for holding a nut in a profile
FR1459331A (en) Optical device and method
FR1380661A (en) Device for examining defects in a glass object
FR1538259A (en) Method and equipment for checking transparent containers
CH461131A (en) Dichroic crystal optical device
FR1538624A (en) Method and device for placing sponge cake
FR1493832A (en) Holding device for the crystal of a radiospectrometer
GB1041798A (en) Apparatus for detecting dirt in transparent bottles
CA801382A (en) Process and device for the analysis of phenomena involving variations in optical path
FR1534715A (en) Method and apparatus for sealing elements to glass
FR1501242A (en) Method and glazing for light attenuation