SE338708B - - Google Patents

Info

Publication number
SE338708B
SE338708B SE951668A SE951668A SE338708B SE 338708 B SE338708 B SE 338708B SE 951668 A SE951668 A SE 951668A SE 951668 A SE951668 A SE 951668A SE 338708 B SE338708 B SE 338708B
Authority
SE
Sweden
Prior art keywords
fresnel
heidecke
july
shape
franke
Prior art date
Application number
SE951668A
Other languages
English (en)
Inventor
K Schiele
Original Assignee
Rollei Werke Franke Heidecke
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 Rollei Werke Franke Heidecke filed Critical Rollei Werke Franke Heidecke
Publication of SE338708B publication Critical patent/SE338708B/xx

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)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
SE951668A 1967-07-12 1968-07-10 SE338708B (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP1267A DE1267966B (de) 1967-07-12 1967-07-12 Fresnel-Feldlinse fuer Spiegelreflexkameras

Publications (1)

Publication Number Publication Date
SE338708B true SE338708B (xx) 1971-09-13

Family

ID=5659689

Family Applications (1)

Application Number Title Priority Date Filing Date
SE951668A SE338708B (xx) 1967-07-12 1968-07-10

Country Status (4)

Country Link
CH (1) CH485237A (xx)
DE (1) DE1267966B (xx)
GB (1) GB1196817A (xx)
SE (1) SE338708B (xx)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996027149A1 (en) * 1995-03-01 1996-09-06 Victor Hasselblad Ab Device and method for facilitating the focusing of a camera

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3041969A1 (de) * 1979-11-07 1981-05-21 Canon K.K., Tokyo Einstellmattscheibe
DE3714830A1 (de) * 1987-05-05 1988-11-17 Leitz Ernst Gmbh Kombinierte hellfeld-dunkelfeld- auflichtbeleuchtungseinrichtung
DE4023192A1 (de) * 1990-07-20 1992-01-30 Heckler & Koch Gmbh Afokales optisches abbildungssystem

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1171728B (de) * 1962-09-17 1964-06-04 Elbe Kamera Gmbh Bildfeldlinse mit unterschiedlicher Brennweite fuer Spiegelreflexkameras

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996027149A1 (en) * 1995-03-01 1996-09-06 Victor Hasselblad Ab Device and method for facilitating the focusing of a camera
US5839004A (en) * 1995-03-01 1998-11-17 Victor Hasselblad Ab Device and method for facilitating the focusing of a camera

Also Published As

Publication number Publication date
CH485237A (de) 1970-01-31
DE1267966B (de) 1968-05-09
GB1196817A (en) 1970-07-01

Similar Documents

Publication Publication Date Title
CA944984A (en) Ophthalmic lenses with a progressively varying focal power
ES437582A1 (es) Perfeccionamientos introducidos en lentes simples con crite-rios de alta calidad.
JPS51124421A (en) Tele-ph0t0 lens
SE338708B (xx)
JPS5411727A (en) Telephoto lens
JPS5226236A (en) Zoom lens system
JPS5378838A (en) Wide-angle lens of symmetrical type
GB966517A (en) Improvements in or relating to colour television cameras
CH490194A (fr) Procédé de fabrication d'images en relief
JPS52146620A (en) Gauss type lens
JPS5282333A (en) Long focal distance lens of modified elnoster type
CH478864A (fr) Procédé de fabrication d'un copolymère imide-amide
GB1392224A (en) Zoom lens system
GB1261217A (en) Camera objective with continuously variable focal length
JPS5285834A (en) Lens for infrared rays
GB923634A (en) Photographic objective with continually variable focal length
GB1331898A (en) Four element objective lenses
JPS5273746A (en) Multifocal lenticular lens
SU464882A1 (ru) Объектив с переменным фокусным рассто нием
GB1105884A (en) Microscope optical objective
JPS52127327A (en) Foucsing lens system
JPS5241531A (en) Finder for single lens relex camera
JPS53133029A (en) Large aperture telescope lens
JPS53107824A (en) Front focusing photographic lens
JPS5754902A (en) Orthogonal double fresnel lens plate