CA490772A - Concentric optical system - Google Patents

Concentric optical system

Info

Publication number
CA490772A
CA490772A CA490772A CA490772DA CA490772A CA 490772 A CA490772 A CA 490772A CA 490772 A CA490772 A CA 490772A CA 490772D A CA490772D A CA 490772DA CA 490772 A CA490772 A CA 490772A
Authority
CA
Canada
Prior art keywords
optical system
concentric optical
concentric
optical
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
CA490772A
Other languages
French (fr)
Inventor
C. P. Henroteau Francois
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.)
Farnsworth Television and Radio Corp
Original Assignee
Farnsworth Television and Radio Corp
Publication date
Application granted granted Critical
Publication of CA490772A publication Critical patent/CA490772A/en
Expired legal-status Critical Current

Links

CA490772A Concentric optical system Expired CA490772A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA490772T

Publications (1)

Publication Number Publication Date
CA490772A true CA490772A (en) 1953-02-24

Family

ID=35630509

Family Applications (1)

Application Number Title Priority Date Filing Date
CA490772A Expired CA490772A (en) Concentric optical system

Country Status (1)

Country Link
CA (1) CA490772A (en)

Similar Documents

Publication Publication Date Title
CA490772A (en) Concentric optical system
CA493979A (en) Anti-burglar system
CA493137A (en) Optical glass
CA491562A (en) Focusing system
CA492419A (en) Optical measuring system
CA490972A (en) Frequency-detector system
CA496484A (en) Pulse-discriminating system
CA485933A (en) Centered optical system
AU165784B2 (en) Automatic approach system
AU162521B2 (en) Improvement infrequency-control system
CA491162A (en) Optical apparatus
CA493418A (en) Automatic toll-ticketing system
CA495844A (en) Selecting system
CA494403A (en) Lighting system
CA493132A (en) Optical glass
CA493133A (en) Optical glass
CA493134A (en) Optical glass
CA493135A (en) Optical glass
CA493136A (en) Optical glass
CA489882A (en) Projection system
CA493867A (en) Signal comparison system
CA496988A (en) Tracking system
AU1811553A (en) Automatic approach system
CA489945A (en) Illuminescent tube system
AU164415B2 (en) Focusing adjusting system