Binocular microscope attachment for correction of ametropia

Details Binocular microscope attachment for correction of ametropia Binocular microscope attachment for correction of ametropia

1989-11-07

1990-06-26

Henry, Jon W.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

350515, 350550, 350145, 350257, 351205, G02B 2120, G02B 2318, G02B 2700, G02B 712

Patent

active

049366670

ABSTRACT:
An attachment for a binocular microscope to provide appropriate correction for the ametropia, i.e., defective vision, of the user. The attachment includes a pair of holders which can be slipped over and frictionally held by the microscope's scope's binocular eyepiece tubes, each holder having a retainer for receiving and positioning respective eyeglass lenses appropriate for correcting the user's individual ametropia. Means are provided for preventing rotation of the eyeglass lenses when the microscope's binocular tubes are adjusted for the user's interpupillary distance, thereby maintaining the proper orientation of the lenses so that even astigmatism can be corrected. The attachment is applicable to binocular microscopes having oblique eyepiece tubes as well as those having conventional parallel eyepiece tubes.

REFERENCES:
patent: 3914012 (1975-10-01), Boughton

Affiliated with

Also associated with

Rating

Binocular microscope attachment for correction of ametropia does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Binocular microscope attachment for correction of ametropia, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Binocular microscope attachment for correction of ametropia will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1121841