FR2161799B1 - - Google Patents

Info

Publication number
FR2161799B1
FR2161799B1 FR7142858A FR7142858A FR2161799B1 FR 2161799 B1 FR2161799 B1 FR 2161799B1 FR 7142858 A FR7142858 A FR 7142858A FR 7142858 A FR7142858 A FR 7142858A FR 2161799 B1 FR2161799 B1 FR 2161799B1
Authority
FR
France
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
FR7142858A
Other languages
French (fr)
Other versions
FR2161799A1 (en
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.)
APPLIC TECH AVANCEES
Original Assignee
APPLIC TECH AVANCEES
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 APPLIC TECH AVANCEES filed Critical APPLIC TECH AVANCEES
Priority to FR7142858A priority Critical patent/FR2161799A1/fr
Publication of FR2161799A1 publication Critical patent/FR2161799A1/fr
Application granted granted Critical
Publication of FR2161799B1 publication Critical patent/FR2161799B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/20—Uniting glass pieces by fusing without substantial reshaping
    • C03B23/207—Uniting glass rods, glass tubes, or hollow glassware
    • 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)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Telescopes (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Mounting And Adjusting Of Optical Elements (AREA)
FR7142858A 1971-11-30 1971-11-30 Astronomical mirror - of light weight using hollow glass tubes as structural support Granted FR2161799A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7142858A FR2161799A1 (en) 1971-11-30 1971-11-30 Astronomical mirror - of light weight using hollow glass tubes as structural support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7142858A FR2161799A1 (en) 1971-11-30 1971-11-30 Astronomical mirror - of light weight using hollow glass tubes as structural support

Publications (2)

Publication Number Publication Date
FR2161799A1 FR2161799A1 (en) 1973-07-13
FR2161799B1 true FR2161799B1 (ref) 1975-04-18

Family

ID=9086638

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7142858A Granted FR2161799A1 (en) 1971-11-30 1971-11-30 Astronomical mirror - of light weight using hollow glass tubes as structural support

Country Status (1)

Country Link
FR (1) FR2161799A1 (ref)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3018785C2 (de) * 1980-05-16 1982-04-15 Heraeus Quarzschmelze Gmbh, 6450 Hanau Leichtgewichtsspiegel, insbesondere für astronomische Zwecke und Verfahren zu seiner Herstellung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1268097A (fr) * 1960-09-21 1961-07-28 Heraeus Schott Quarzschmelze Miroir de grande précision à grande constance de surface, en particulier miroir de grande dimension

Also Published As

Publication number Publication date
FR2161799A1 (en) 1973-07-13

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Legal Events

Date Code Title Description
TP Transmission of property
CL Concession to grant licenses