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New high-index visolett magnifier.

¹Saint Barnabas Low Vision Center, West Orange, New Jersey 07052.

Annals of Ophthalmology

|August 1, 1992

Summary

A new high-index Visolett magnifier offers a 39% larger image size compared to standard crown glass magnifiers. This optically designed paperweight magnifier provides 2.49x magnification for enhanced viewing.

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Area of Science:

Optics
Materials Science

Background:

Standard Visolett magnifiers utilize crown glass (index, 1.523).
A new high-index version (index, 1.806) of the Visolett magnifier is now available.

Purpose of the Study:

To evaluate the performance of the new high-index Visolett magnifier.
To compare the image size enhancement provided by the high-index material.

Main Methods:

The study focuses on the optical properties of the Visolett magnifier.
Comparison of image size between standard and high-index models.

Main Results:

The high-index Visolett magnifier has an optical index of 1.806.
It provides 2.49x magnification with a 32mm diameter.
The use of high-index material results in a 39% increase in image size.

Conclusions:

The high-index Visolett magnifier significantly enhances image size due to its material properties.
This offers improved magnification performance over conventional magnifiers.

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