CA1113753A - Visionneuse a agrandissement selectif - Google Patents

Visionneuse a agrandissement selectif

Info

Publication number
CA1113753A
CA1113753A CA315,016A CA315016A CA1113753A CA 1113753 A CA1113753 A CA 1113753A CA 315016 A CA315016 A CA 315016A CA 1113753 A CA1113753 A CA 1113753A
Authority
CA
Canada
Prior art keywords
instrument
lens means
subject
main body
objective lens
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
CA315,016A
Other languages
English (en)
Inventor
Roland Galarneau
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CA315,016A priority Critical patent/CA1113753A/fr
Application granted granted Critical
Publication of CA1113753A publication Critical patent/CA1113753A/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G02B23/14—Viewfinders
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Lenses (AREA)
CA315,016A 1978-10-31 1978-10-31 Visionneuse a agrandissement selectif Expired CA1113753A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA315,016A CA1113753A (fr) 1978-10-31 1978-10-31 Visionneuse a agrandissement selectif

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA315,016A CA1113753A (fr) 1978-10-31 1978-10-31 Visionneuse a agrandissement selectif

Publications (1)

Publication Number Publication Date
CA1113753A true CA1113753A (fr) 1981-12-08

Family

ID=4112785

Family Applications (1)

Application Number Title Priority Date Filing Date
CA315,016A Expired CA1113753A (fr) 1978-10-31 1978-10-31 Visionneuse a agrandissement selectif

Country Status (1)

Country Link
CA (1) CA1113753A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2522163A1 (fr) * 1982-02-25 1983-08-26 Yabe Optical Inst Mfg Co Ltd Optique intermediaire additionnelle pour macrophotographie

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2522163A1 (fr) * 1982-02-25 1983-08-26 Yabe Optical Inst Mfg Co Ltd Optique intermediaire additionnelle pour macrophotographie

Similar Documents

Publication Publication Date Title
US6201640B1 (en) Magnification viewer
Carpenter The microscope and its revelations
EP0203939B1 (fr) Ophtalmoscope binoculaire frontal indirect avec telescope integre
US4523818A (en) Ocular eyecups for wearers of glasses
US4334736A (en) Wet cornea microscope
US5835289A (en) Auxiliary lens attachment for an optical device
US5090796A (en) Test frame for fitting a patient with telescopic corrective lenses and associated method
US4936667A (en) Binocular microscope attachment for correction of ametropia
EP0025356A1 (fr) Dispositif et procédé pour aider la vision
US3540792A (en) Rapid-focus binocular
CA1113753A (fr) Visionneuse a agrandissement selectif
US7369331B2 (en) Fixed focus handy ovulation tester
US4802756A (en) Low vision apparatus and device and method for enabling the visually handicapped to view television
Pelli et al. Psychophysics of reading. III. A fiberscope low-vision reading aid.
US5239416A (en) Variable power zoom stand magnifier
US4428651A (en) Click-stop focusing of binoculars
EP0336073A3 (en) Telescopic ophthalmic lens
US4494836A (en) Device for determining and measuring monocular pupillary deviations in a patient's eyes
US4714329A (en) Visual aid especially for weak-sighted persons
Kozlowski et al. Negative-lens field expander for patients with concentric field constriction
Bausch Manipulation of the Microscope
Spitzberg et al. New ergonomic stand magnifiers
Lang Evaluation and modification of low vision aids
SU679915A1 (ru) Окул р
SU1622873A1 (ru) Окул р

Legal Events

Date Code Title Description
MKEX Expiry