CA212196A - Lentille de projection - Google Patents

Lentille de projection

Info

Publication number
CA212196A
CA212196A CA212196A CA212196DA CA212196A CA 212196 A CA212196 A CA 212196A CA 212196 A CA212196 A CA 212196A CA 212196D A CA212196D A CA 212196DA CA 212196 A CA212196 A CA 212196A
Authority
CA
Canada
Prior art keywords
projection lens
lens
projection
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
CA212196A
Other languages
English (en)
Inventor
A. Dorey William
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.)
HOLOPHANE GLASS CO
Original Assignee
HOLOPHANE GLASS CO
Publication date
Application granted granted Critical
Publication of CA212196A publication Critical patent/CA212196A/fr
Expired legal-status Critical Current

Links

CA212196A Lentille de projection Expired CA212196A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA212196T

Publications (1)

Publication Number Publication Date
CA212196A true CA212196A (fr) 1921-05-31

Family

ID=35105975

Family Applications (1)

Application Number Title Priority Date Filing Date
CA212196A Expired CA212196A (fr) Lentille de projection

Country Status (1)

Country Link
CA (1) CA212196A (fr)

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