Deviation of Zone Lenses Produced by Polarization

Article metrics

Abstract

ZONE lenses are systems of alternate opaque or phase-retarding rings, which are usually made in one of the following ways: (a) by describing larger circles on cardboard and photographically reproducing them, (b) by photographing Newton fringes occurring between a slightly convex lens and an optical flat, or (c) following Wood1, but cutting out narrow ring circles on a previously coated surface by means of a turntable or lathe. The least distance, (d), resolved by a zone lens is given by: where λ is the wave-length and B the focal length/diameter. Since the focal length is proportional to the square of the radius of the innermost zone2, small zone lenses will have higher resolving power. Thus, the originals made are usually further reduced photographically in one or two subsequent steps.

Access options

Rent or Buy article

Get time limited or full article access on ReadCube.

from$8.99

All prices are NET prices.

References

  1. 1

    Wood, R. W., “Physical Optics”, 3rd el. pp. 37–39 (Macmillan, London, New York, 1956).

  2. 2

    von Fragstein, C., and Weber, K., Optik, 11, 270 (1954).

Download references

Author information

Rights and permissions

Reprints and Permissions

About this article

Cite this article

MEYER-ARENDT, J. Deviation of Zone Lenses Produced by Polarization. Nature 184, 811 (1959) doi:10.1038/184811a0

Download citation

Comments

By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.