CA1098352A - Magnifying optical system - Google Patents

Magnifying optical system

Info

Publication number
CA1098352A
CA1098352A CA295,266A CA295266A CA1098352A CA 1098352 A CA1098352 A CA 1098352A CA 295266 A CA295266 A CA 295266A CA 1098352 A CA1098352 A CA 1098352A
Authority
CA
Canada
Prior art keywords
grooves
optical system
discs
grooved
focal plane
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
CA295,266A
Other languages
English (en)
French (fr)
Inventor
Robin J. Freeman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vision Engr Ltd
Original Assignee
Vision Engr Ltd
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 Engr Ltd filed Critical Vision Engr Ltd
Application granted granted Critical
Publication of CA1098352A publication Critical patent/CA1098352A/en
Expired legal-status Critical Current

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)
CA295,266A 1977-01-20 1978-01-19 Magnifying optical system Expired CA1098352A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2285/77 1977-01-20
GB228577A GB1586701A (en) 1977-01-20 1977-01-20 Disc with line transmitters

Publications (1)

Publication Number Publication Date
CA1098352A true CA1098352A (en) 1981-03-31

Family

ID=9736875

Family Applications (1)

Application Number Title Priority Date Filing Date
CA295,266A Expired CA1098352A (en) 1977-01-20 1978-01-19 Magnifying optical system

Country Status (7)

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

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 (enrdf_load_stackoverflow) * 1973-06-28 1975-03-03

Also Published As

Publication number Publication date
DE2801262A1 (de) 1978-07-27
FR2378293A1 (fr) 1978-08-18
FR2378293B3 (enrdf_load_stackoverflow) 1980-10-03
DE2801262C2 (de) 1984-01-19
SE7714278L (sv) 1978-07-21
JPS5393024A (en) 1978-08-15
SE425579B (sv) 1982-10-11
GB1586701A (en) 1981-03-25
CH619791A5 (en) 1980-10-15

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Legal Events

Date Code Title Description
MKEX Expiry