CA1040466A - Epidiascope a faible eblouissement - Google Patents

Epidiascope a faible eblouissement

Info

Publication number
CA1040466A
CA1040466A CA233,783A CA233783A CA1040466A CA 1040466 A CA1040466 A CA 1040466A CA 233783 A CA233783 A CA 233783A CA 1040466 A CA1040466 A CA 1040466A
Authority
CA
Canada
Prior art keywords
lens
lenses
echelon
lens structure
oriented
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
CA233,783A
Other languages
English (en)
Inventor
Raymond H. Anderson
Gregory S. Lewer
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing 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 Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Application granted granted Critical
Publication of CA1040466A publication Critical patent/CA1040466A/fr
Expired legal-status Critical Current

Links

Landscapes

  • Lenses (AREA)
CA233,783A 1974-08-21 1975-08-20 Epidiascope a faible eblouissement Expired CA1040466A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US49913874A 1974-08-21 1974-08-21

Publications (1)

Publication Number Publication Date
CA1040466A true CA1040466A (fr) 1978-10-17

Family

ID=23983997

Family Applications (1)

Application Number Title Priority Date Filing Date
CA233,783A Expired CA1040466A (fr) 1974-08-21 1975-08-20 Epidiascope a faible eblouissement

Country Status (2)

Country Link
CA (1) CA1040466A (fr)
ZA (1) ZA755343B (fr)

Also Published As

Publication number Publication date
ZA755343B (en) 1976-07-28

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