CS180102B1 - Optical system with fresnel structure - Google Patents

Optical system with fresnel structure

Info

Publication number
CS180102B1
CS180102B1 CS727170A CS727170A CS180102B1 CS 180102 B1 CS180102 B1 CS 180102B1 CS 727170 A CS727170 A CS 727170A CS 727170 A CS727170 A CS 727170A CS 180102 B1 CS180102 B1 CS 180102B1
Authority
CS
Czechoslovakia
Prior art keywords
optical system
fresnel structure
fresnel
optical
Prior art date
Application number
CS727170A
Other languages
Czech (cs)
Inventor
Christian Hofmann
Joerg Neumann
Original Assignee
Christian Hofmann
Joerg Neumann
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 Christian Hofmann, Joerg Neumann filed Critical Christian Hofmann
Publication of CS180102B1 publication Critical patent/CS180102B1/en

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)
CS727170A 1969-10-27 1970-10-27 Optical system with fresnel structure CS180102B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD14330469 1969-10-27

Publications (1)

Publication Number Publication Date
CS180102B1 true CS180102B1 (en) 1977-12-30

Family

ID=5481771

Family Applications (1)

Application Number Title Priority Date Filing Date
CS727170A CS180102B1 (en) 1969-10-27 1970-10-27 Optical system with fresnel structure

Country Status (5)

Country Link
CS (1) CS180102B1 (en)
DE (1) DE2035823A1 (en)
FR (1) FR2065533B1 (en)
PL (1) PL70042B1 (en)
SE (1) SE367712B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2472197A1 (en) * 1979-12-18 1981-06-26 Cintra Daniel Fresnel lens for TV screen - has grooves with sidewall being functions of groove and lens radii
WO2000052500A1 (en) * 1999-03-02 2000-09-08 K-Dream Image projection device and cooking appliance, electric or home automation household appliance and image projection system using said device

Also Published As

Publication number Publication date
FR2065533B1 (en) 1973-10-19
FR2065533A1 (en) 1971-07-30
DE2035823A1 (en) 1971-04-29
PL70042B1 (en) 1973-12-31
SE367712B (en) 1974-06-04

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