ATA646473A - OPTICAL ELEMENT MADE OF PLASTIC - Google Patents

OPTICAL ELEMENT MADE OF PLASTIC

Info

Publication number
ATA646473A
ATA646473A AT646473A AT646473A ATA646473A AT A646473 A ATA646473 A AT A646473A AT 646473 A AT646473 A AT 646473A AT 646473 A AT646473 A AT 646473A AT A646473 A ATA646473 A AT A646473A
Authority
AT
Austria
Prior art keywords
plastic
optical element
element made
optical
Prior art date
Application number
AT646473A
Other languages
German (de)
Other versions
AT341247B (en
Original Assignee
Polaroid Corp
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
Priority claimed from AT1073770A external-priority patent/AT314867B/en
Application filed by Polaroid Corp filed Critical Polaroid Corp
Priority to AT646473A priority Critical patent/AT341247B/en
Publication of ATA646473A publication Critical patent/ATA646473A/en
Application granted granted Critical
Publication of AT341247B publication Critical patent/AT341247B/en

Links

AT646473A 1969-11-28 1973-07-20 OPTICAL ELEMENT MADE OF PLASTIC AT341247B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT646473A AT341247B (en) 1969-11-28 1973-07-20 OPTICAL ELEMENT MADE OF PLASTIC

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US88061469A 1969-11-28 1969-11-28
AT1073770A AT314867B (en) 1969-11-28 1970-11-27 Optical infrared filter
AT646473A AT341247B (en) 1969-11-28 1973-07-20 OPTICAL ELEMENT MADE OF PLASTIC

Publications (2)

Publication Number Publication Date
ATA646473A true ATA646473A (en) 1977-05-15
AT341247B AT341247B (en) 1978-01-25

Family

ID=27150631

Family Applications (1)

Application Number Title Priority Date Filing Date
AT646473A AT341247B (en) 1969-11-28 1973-07-20 OPTICAL ELEMENT MADE OF PLASTIC

Country Status (1)

Country Link
AT (1) AT341247B (en)

Also Published As

Publication number Publication date
AT341247B (en) 1978-01-25

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee