FR1473408A - improved telescope mirror blank, telescope mirror obtained therefrom and method of making same - Google Patents

improved telescope mirror blank, telescope mirror obtained therefrom and method of making same

Info

Publication number
FR1473408A
FR1473408A FR52153A FR52153A FR1473408A FR 1473408 A FR1473408 A FR 1473408A FR 52153 A FR52153 A FR 52153A FR 52153 A FR52153 A FR 52153A FR 1473408 A FR1473408 A FR 1473408A
Authority
FR
France
Prior art keywords
telescope mirror
obtained therefrom
making same
improved
blank
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
FR52153A
Other languages
French (fr)
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.)
OI Glass Inc
Original Assignee
Owens Illinois Inc
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 Owens Illinois Inc filed Critical Owens Illinois Inc
Priority to FR52153A priority Critical patent/FR1473408A/en
Application granted granted Critical
Publication of FR1473408A publication Critical patent/FR1473408A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C03C10/00—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
    • C03C10/0018—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition containing SiO2, Al2O3 and monovalent metal oxide as main constituents
    • C03C10/0027—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition containing SiO2, Al2O3 and monovalent metal oxide as main constituents containing SiO2, Al2O3, Li2O as main constituents
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B19/00—Other methods of shaping glass
    • C03B19/02—Other methods of shaping glass by casting molten glass, e.g. injection moulding
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B32/00—Thermal after-treatment of glass products not provided for in groups C03B19/00, C03B25/00 - C03B31/00 or C03B37/00, e.g. crystallisation, eliminating gas inclusions or other impurities; Hot-pressing vitrified, non-porous, shaped glass products
    • C03B32/02—Thermal crystallisation, e.g. for crystallising glass bodies into glass-ceramic articles
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/08—Mirrors

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Optics & Photonics (AREA)
  • Dispersion Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
FR52153A 1965-03-05 1966-03-04 improved telescope mirror blank, telescope mirror obtained therefrom and method of making same Expired FR1473408A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR52153A FR1473408A (en) 1965-03-05 1966-03-04 improved telescope mirror blank, telescope mirror obtained therefrom and method of making same

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US43743165A 1965-03-05 1965-03-05
US46869165A 1965-07-01 1965-07-01
FR52153A FR1473408A (en) 1965-03-05 1966-03-04 improved telescope mirror blank, telescope mirror obtained therefrom and method of making same
US86212269A 1969-08-05 1969-08-05
US6398970A 1970-07-23 1970-07-23

Publications (1)

Publication Number Publication Date
FR1473408A true FR1473408A (en) 1967-03-17

Family

ID=27514772

Family Applications (1)

Application Number Title Priority Date Filing Date
FR52153A Expired FR1473408A (en) 1965-03-05 1966-03-04 improved telescope mirror blank, telescope mirror obtained therefrom and method of making same

Country Status (1)

Country Link
FR (1) FR1473408A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2588970A1 (en) * 1985-10-23 1987-04-24 Reosc ALLEGE MIRROR WITH NON-PLANE REFLECTING FRAME, IN PARTICULAR TELESCOPE MIRROR

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2588970A1 (en) * 1985-10-23 1987-04-24 Reosc ALLEGE MIRROR WITH NON-PLANE REFLECTING FRAME, IN PARTICULAR TELESCOPE MIRROR
EP0227502A1 (en) * 1985-10-23 1987-07-01 R.E.O.S.C. (Recherches Et Etudes D'optique Et De Sciences Connexes) Light-weight mirror and method of making it
US4678293A (en) * 1985-10-23 1987-07-07 Recherches Et Etudes D'optique Et De Sciences Connexes Reduced-weight mirror

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