IE33592B1 - Improvements in high magnification optical apparatus - Google Patents

Improvements in high magnification optical apparatus

Info

Publication number
IE33592B1
IE33592B1 IE137869A IE137869A IE33592B1 IE 33592 B1 IE33592 B1 IE 33592B1 IE 137869 A IE137869 A IE 137869A IE 137869 A IE137869 A IE 137869A IE 33592 B1 IE33592 B1 IE 33592B1
Authority
IE
Ireland
Prior art keywords
microscope
faces
screen
lenticular
exit pupils
Prior art date
Application number
IE137869A
Other versions
IE33592L (en
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 IE33592L publication Critical patent/IE33592L/en
Publication of IE33592B1 publication Critical patent/IE33592B1/en

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
    • G02B21/18—Arrangements with more than one light path, e.g. for comparing two specimens
    • G02B21/20—Binocular arrangements
    • G02B21/22—Stereoscopic arrangements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00—Microscopes
    • G02B21/36—Microscopes arranged for photographic purposes or projection purposes or digital imaging or video purposes including associated control and data processing arrangements
    • G02B21/364—Projection microscopes
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Astronomy & Astrophysics (AREA)
  • Microscoopes, Condenser (AREA)
  • Overhead Projectors And Projection Screens (AREA)
  • Lenses (AREA)

Abstract

1275917 Microscopes or screen projectors with enlarged exit pupils VISION ENG Ltd 1 Oct 1969 [12 Dec 1968] 59137/68 Heading G2J A microscope having no eye-pieces or a screen projector has means to position and illuminate an object to be viewed and an optical device for producing enlarged exit pupils which comprises in the light path to the eye of an observer a multiplicity of lenticular faces which are traversed within the light path such that when the motion of said faces exceeds the persistence of vision the angle of light egress is multiplied with respect to the angle of light incidence. In a microscope, a primary image at B is further imaged by an objective C and projection lens D and then passes through a beamsplitter prism E to collimator lens F abutting a rotating disc G having the lenticular reflective faces thereon. The magnified images so produced are further enlarged by field lens H and finally appear as enlarged exit pupils (approximately 2 inches to 5 inches in diameter) at normal interpupilliary distance. The lenticular faces on disc G may also be formed on an endless belt of aluminized plastics material (27) Fig. 5 (not shown), which is rotated or motor driven on rollers (29). In a profile screen projector they may be embossed as convex protrusions on a transparent plate, Fig. 4 (not shown). A non-stereoscopic microscope and a research microscope having the optical device are also described. Applications for such microscopes and screen projectors may be teaching aids, small screen displays and in sales promotion films. [GB1275917A]
IE137869A 1968-12-12 1969-10-03 Improvements in high magnification optical apparatus IE33592B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5913768A GB1275917A (en) 1968-12-12 1968-12-12 Improvements in high magnification optical apparatus

Publications (2)

Publication Number Publication Date
IE33592L IE33592L (en) 1970-06-12
IE33592B1 true IE33592B1 (en) 1974-08-21

Family

ID=10483127

Family Applications (1)

Application Number Title Priority Date Filing Date
IE137869A IE33592B1 (en) 1968-12-12 1969-10-03 Improvements in high magnification optical apparatus

Country Status (9)

Country Link
JP (1) JPS5019936B1 (en)
BE (1) BE741175A (en)
CH (1) CH507525A (en)
DE (1) DE1962223B2 (en)
FR (1) FR2025931A1 (en)
GB (1) GB1275917A (en)
IE (1) IE33592B1 (en)
NL (1) NL142790B (en)
SE (1) SE379100B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4099831A (en) * 1971-11-29 1978-07-11 Vision Engineering, Ltd. High magnification optical apparatus with rotatable reflective lenticulated surface
GB1586701A (en) * 1977-01-20 1981-03-25 Vision Eng Ltd Disc with line transmitters
GB8901477D0 (en) * 1989-01-24 1989-03-15 Vision Eng Optical instrument
US6608720B1 (en) 1997-06-02 2003-08-19 Robin John Freeman Optical instrument and optical element thereof
GB2464953A (en) * 2008-10-30 2010-05-05 Vision Eng Optical instrument comprising an arrangement to increase the exit pupil size.

Also Published As

Publication number Publication date
NL142790B (en) 1974-07-15
DE1962223A1 (en) 1970-07-09
DE1962223B2 (en) 1976-01-29
BE741175A (en) 1970-04-16
CH507525A (en) 1971-05-15
SE379100B (en) 1975-09-22
JPS5019936B1 (en) 1975-07-10
FR2025931A1 (en) 1970-09-11
GB1275917A (en) 1972-06-01
IE33592L (en) 1970-06-12
NL6918219A (en) 1970-06-16

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