CH619791A5 - Optical device - Google Patents

Optical device Download PDF

Info

Publication number
CH619791A5
CH619791A5 CH16978A CH16978A CH619791A5 CH 619791 A5 CH619791 A5 CH 619791A5 CH 16978 A CH16978 A CH 16978A CH 16978 A CH16978 A CH 16978A CH 619791 A5 CH619791 A5 CH 619791A5
Authority
CH
Switzerland
Prior art keywords
optical system
grooves
disks
grooved
enlarged
Prior art date
Application number
CH16978A
Other languages
German (de)
English (en)
Inventor
Robin John Freeman
Original Assignee
Vision Eng
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 Vision Eng filed Critical Vision Eng
Publication of CH619791A5 publication Critical patent/CH619791A5/de

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0081—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for altering, e.g. enlarging, the entrance or exit pupil
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00—Microscopes
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Microscoopes, Condenser (AREA)
  • Lenses (AREA)
CH16978A 1977-01-20 1978-01-09 Optical device CH619791A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB228577A GB1586701A (en) 1977-01-20 1977-01-20 Disc with line transmitters

Publications (1)

Publication Number Publication Date
CH619791A5 true CH619791A5 (en) 1980-10-15

Family

ID=9736875

Family Applications (1)

Application Number Title Priority Date Filing Date
CH16978A CH619791A5 (en) 1977-01-20 1978-01-09 Optical device

Country Status (7)

Country Link
JP (1) JPS5393024A (sv)
CA (1) CA1098352A (sv)
CH (1) CH619791A5 (sv)
DE (1) DE2801262C2 (sv)
FR (1) FR2378293A1 (sv)
GB (1) GB1586701A (sv)
SE (1) SE425579B (sv)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3224227C1 (de) * 1982-06-29 1983-12-15 C. Reichert Optische Werke AG, 1170 Wien Projektionseinrichtung fuer Mikroskope
FR2638858B1 (fr) * 1988-11-04 1991-02-08 Rossignol Gerard Dispositif opto-mecanique de projection d'images et d'observation en trois dimensions
US6028704A (en) * 1993-05-17 2000-02-22 Freeman; Robin John Optical instrument and optical element thereof
GB9310077D0 (en) * 1993-05-17 1993-06-30 Freeman Robin J Optical instrument
US6608720B1 (en) 1997-06-02 2003-08-19 Robin John Freeman Optical instrument and optical element thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3453035A (en) * 1963-11-04 1969-07-01 Diffraction Ltd Inc Optical system with diffraction grating screen
GB1275917A (en) * 1968-12-12 1972-06-01 Vision Eng Improvements in high magnification optical apparatus
JPS5019936A (sv) * 1973-06-28 1975-03-03

Also Published As

Publication number Publication date
SE425579B (sv) 1982-10-11
FR2378293A1 (fr) 1978-08-18
DE2801262C2 (de) 1984-01-19
CA1098352A (en) 1981-03-31
DE2801262A1 (de) 1978-07-27
FR2378293B3 (sv) 1980-10-03
SE7714278L (sv) 1978-07-21
JPS5393024A (en) 1978-08-15
GB1586701A (en) 1981-03-25

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Legal Events

Date Code Title Description
PL Patent ceased