NL178818B - Enkelvoudige rotatiesymmetrische aplanatische lens met asferische brekende oppervlakken. - Google Patents

Enkelvoudige rotatiesymmetrische aplanatische lens met asferische brekende oppervlakken.

Info

Publication number
NL178818B
NL178818B NLAANVRAGE7505528,B NL178818DB NL178818B NL 178818 B NL178818 B NL 178818B NL 178818D B NL178818D B NL 178818DB NL 178818 B NL178818 B NL 178818B
Authority
NL
Netherlands
Prior art keywords
aspheric
single rotation
rotation symmetric
aplanatic lens
breaking surfaces
Prior art date
Application number
NLAANVRAGE7505528,B
Other languages
English (en)
Dutch (nl)
Original Assignee
Philips Nv
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.)
Publication of NL178818B publication Critical patent/NL178818B/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
NLAANVRAGE7505528,B 1953-06-03 Enkelvoudige rotatiesymmetrische aplanatische lens met asferische brekende oppervlakken. NL178818B (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL322493X 1953-06-03

Publications (1)

Publication Number Publication Date
NL178818B true NL178818B (nl)

Family

ID=19784041

Family Applications (2)

Application Number Title Priority Date Filing Date
NLAANVRAGE7505528,B NL178818B (nl) 1953-06-03 Enkelvoudige rotatiesymmetrische aplanatische lens met asferische brekende oppervlakken.
NL88029D NL88029C (instruction) 1953-06-03

Family Applications After (1)

Application Number Title Priority Date Filing Date
NL88029D NL88029C (instruction) 1953-06-03

Country Status (6)

Country Link
BE (1) BE529307A (instruction)
CH (1) CH322493A (instruction)
DE (1) DE942868C (instruction)
FR (1) FR1106753A (instruction)
GB (1) GB753397A (instruction)
NL (2) NL88029C (instruction)

Also Published As

Publication number Publication date
FR1106753A (fr) 1955-12-22
BE529307A (instruction)
DE942868C (de) 1956-05-09
CH322493A (de) 1957-06-15
NL88029C (instruction)
GB753397A (en) 1956-07-25

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