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A COMBINATION SQUARE PRISM AND LOLLIPOP HOLDER

A COMBINATION SQUARE PRISM AND LOLLIPOP HOLDER Abstract In a standard square plastic or glass prism, averaging about 38 mm. square, two small holes were drilled, each about 5 mm. in length and 2 mm. wide, one into the base and the other in one side of the prism. The hole in the base of the prism was drilled perpendicularly at a point midway of this rectangular surface. The hole in the side of the prism was drilled perpendicularly at a point midway between the apex and the basal edge. The holes were then tapped to permit the ready insertion of a rod about 6 inches (15 cm.) long, with one end threaded to screw readily into either of these spiraled openings. The result was a simple prism holder which could be changed readily to a base-down, base-in or base-out position. In a more recent model the holes were not threaded. One end of the rod holder was References 1. Krimsky, E.: A New Prism Holder , Tr. Am. Acad. Ophth. 51:297, 1947 2. A Multiple Prism Holder , Krimsky Tr. Am. Acad. Ophth. 54:370, 1950. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png A.M.A. Archives of Ophthalmology American Medical Association

A COMBINATION SQUARE PRISM AND LOLLIPOP HOLDER

KRIMSKY, EMANUEL
A.M.A. Archives of Ophthalmology , Volume 46 (3) – Sep 1, 1951
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References (2)

  • E. Krimsky (1950)

    A multiple prism holder.

    Transactions - American Academy of Ophthalmology and Otolaryngology. American Academy of Ophthalmology and Otolaryngology, 54

  • E. Krimsky (1947)

    A new prism holder.

    Transactions - American Academy of Ophthalmology and Otolaryngology. American Academy of Ophthalmology and Otolaryngology, 51

Publisher
American Medical Association
Copyright
Copyright © 1951 American Medical Association. All Rights Reserved.
ISSN
0096-6339
DOI
10.1001/archopht.1951.01700020346010
Publisher site
See Article on Publisher Site

Abstract

Abstract In a standard square plastic or glass prism, averaging about 38 mm. square, two small holes were drilled, each about 5 mm. in length and 2 mm. wide, one into the base and the other in one side of the prism. The hole in the base of the prism was drilled perpendicularly at a point midway of this rectangular surface. The hole in the side of the prism was drilled perpendicularly at a point midway between the apex and the basal edge. The holes were then tapped to permit the ready insertion of a rod about 6 inches (15 cm.) long, with one end threaded to screw readily into either of these spiraled openings. The result was a simple prism holder which could be changed readily to a base-down, base-in or base-out position. In a more recent model the holes were not threaded. One end of the rod holder was References 1. Krimsky, E.: A New Prism Holder , Tr. Am. Acad. Ophth. 51:297, 1947 2. A Multiple Prism Holder , Krimsky Tr. Am. Acad. Ophth. 54:370, 1950.

Journal

A.M.A. Archives of Ophthalmology – American Medical Association

Published: Sep 1, 1951

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