CA247559A - Achromatic bifocal lens - Google Patents

Achromatic bifocal lens

Info

Publication number
CA247559A
CA247559A CA247559A CA247559DA CA247559A CA 247559 A CA247559 A CA 247559A CA 247559 A CA247559 A CA 247559A CA 247559D A CA247559D A CA 247559DA CA 247559 A CA247559 A CA 247559A
Authority
CA
Canada
Prior art keywords
achromatic
bifocal lens
bifocal
lens
achromatic bifocal
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
CA247559A
Other languages
French (fr)
Inventor
W. Bugbee Lucian
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.)
FRANKLIN OPTICAL Co
Original Assignee
FRANKLIN OPTICAL Co
Publication date
Application granted granted Critical
Publication of CA247559A publication Critical patent/CA247559A/en
Expired legal-status Critical Current

Links

CA247559A Achromatic bifocal lens Expired CA247559A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA247559T

Publications (1)

Publication Number Publication Date
CA247559A true CA247559A (en) 1925-03-10

Family

ID=35154533

Family Applications (1)

Application Number Title Priority Date Filing Date
CA247559A Expired CA247559A (en) Achromatic bifocal lens

Country Status (1)

Country Link
CA (1) CA247559A (en)

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