CA749670A - Variable transmissivity aperture for optical apparatus - Google Patents

Variable transmissivity aperture for optical apparatus

Info

Publication number
CA749670A
CA749670A CA749670A CA749670DA CA749670A CA 749670 A CA749670 A CA 749670A CA 749670 A CA749670 A CA 749670A CA 749670D A CA749670D A CA 749670DA CA 749670 A CA749670 A CA 749670A
Authority
CA
Canada
Prior art keywords
aperture
optical apparatus
variable transmissivity
transmissivity
variable
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
CA749670A
Inventor
G. Jordan Joseph
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.)
Individual
Original Assignee
Individual
Publication date
Application granted granted Critical
Publication of CA749670A publication Critical patent/CA749670A/en
Expired legal-status Critical Current

Links

CA749670A Variable transmissivity aperture for optical apparatus Expired CA749670A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA749670T

Publications (1)

Publication Number Publication Date
CA749670A true CA749670A (en) 1967-01-03

Family

ID=36184029

Family Applications (1)

Application Number Title Priority Date Filing Date
CA749670A Expired CA749670A (en) Variable transmissivity aperture for optical apparatus

Country Status (1)

Country Link
CA (1) CA749670A (en)

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