DD138108A1 - Ringfoermige abbildungsoptik - Google Patents

Ringfoermige abbildungsoptik

Info

Publication number
DD138108A1
DD138108A1 DD20705978A DD20705978A DD138108A1 DD 138108 A1 DD138108 A1 DD 138108A1 DD 20705978 A DD20705978 A DD 20705978A DD 20705978 A DD20705978 A DD 20705978A DD 138108 A1 DD138108 A1 DD 138108A1
Authority
DD
German Democratic Republic
Prior art keywords
ringful
picture optics
optics
picture
ringful picture
Prior art date
Application number
DD20705978A
Other languages
English (en)
Inventor
Wilfried Mueller
Gerhard Bock
Original Assignee
Wilfried Mueller
Gerhard Bock
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 Wilfried Mueller, Gerhard Bock filed Critical Wilfried Mueller
Priority to DD20705978A priority Critical patent/DD138108A1/de
Priority to DE19792928535 priority patent/DE2928535A1/de
Publication of DD138108A1 publication Critical patent/DD138108A1/de

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/02—Simple or compound lenses with non-spherical faces
    • G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
DD20705978A 1978-08-01 1978-08-01 Ringfoermige abbildungsoptik DD138108A1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DD20705978A DD138108A1 (de) 1978-08-01 1978-08-01 Ringfoermige abbildungsoptik
DE19792928535 DE2928535A1 (de) 1978-08-01 1979-07-14 Ringfoermige abbildungsoptik

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD20705978A DD138108A1 (de) 1978-08-01 1978-08-01 Ringfoermige abbildungsoptik

Publications (1)

Publication Number Publication Date
DD138108A1 true DD138108A1 (de) 1979-10-10

Family

ID=5513856

Family Applications (1)

Application Number Title Priority Date Filing Date
DD20705978A DD138108A1 (de) 1978-08-01 1978-08-01 Ringfoermige abbildungsoptik

Country Status (2)

Country Link
DD (1) DD138108A1 (de)
DE (1) DE2928535A1 (de)

Also Published As

Publication number Publication date
DE2928535A1 (de) 1980-02-21

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Legal Events

Date Code Title Description
ENJ Ceased due to non-payment of renewal fee