FR1211005A - spectacle lenses or lens blanks and their manufacturing process - Google Patents

spectacle lenses or lens blanks and their manufacturing process

Info

Publication number
FR1211005A
FR1211005A FR1211005DA FR1211005A FR 1211005 A FR1211005 A FR 1211005A FR 1211005D A FR1211005D A FR 1211005DA FR 1211005 A FR1211005 A FR 1211005A
Authority
FR
France
Prior art keywords
manufacturing process
spectacle lenses
lens blanks
blanks
lens
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
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.)
PPG Industries Inc
Original Assignee
Pittsburgh Plate Glass Co
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 Pittsburgh Plate Glass Co filed Critical Pittsburgh Plate Glass Co
Application granted granted Critical
Publication of FR1211005A publication Critical patent/FR1211005A/en
Expired 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
    • C03B23/22—Uniting glass lenses, e.g. forming bifocal lenses

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
FR1211005D 1957-10-07 1958-09-25 spectacle lenses or lens blanks and their manufacturing process Expired FR1211005A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1211005XA 1957-10-07 1957-10-07

Publications (1)

Publication Number Publication Date
FR1211005A true FR1211005A (en) 1960-03-11

Family

ID=22394547

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1211005D Expired FR1211005A (en) 1957-10-07 1958-09-25 spectacle lenses or lens blanks and their manufacturing process

Country Status (1)

Country Link
FR (1) FR1211005A (en)

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