Abstract

A gradient-index (GRIN) endoscope can be constructed by substituting for the usual objective and relay sections suitable cylindrical index-distribution rod lenses. Currently available GRIN lenses exhibit large amounts of chromatic aberration. Axial color arises mostly from the relay lens, while lateral color is due to the objective lens. A negative lens cemented to a shortened GRIN relay lens can simultaneously correct axial and lateral chromatic aberrations with commercially available components. This correction system reduces the requirements for mechanical centration better than do color correctors that are incorporated into the ocular design. Monochromatic aberrations are also considered.

© 1983 Optical Society of America

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References

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  1. R. Prescott, D. Leiner, U.S. Patent Pend. Ser. 361,266.
  2. M. Watanabe, S. Takeda, H. Ikeuchi, Atlas of Arthroscopy (Springer, New York, 1979).
  3. Needlescope is a registered trade name of Dyonics, Inc., Andover, Mass.
  4. Selfoc is a registered trade name of the Nippon Sheet Glass Co., Ltd., Osaka, Japan.
  5. A. E. Conrady, Applied Optics and Optical Design, Part 1 (Dover, New York, 1957), p. 185.
  6. P. J. Sands, J. Opt. Soc. Am. 60, 1436 (1970).
    [CrossRef]
  7. D. T. Moore, P. J. Sands, J. Opt. Soc. Am. 61, 1195 (1971).
    [CrossRef]

1971 (1)

1970 (1)

Conrady, A. E.

A. E. Conrady, Applied Optics and Optical Design, Part 1 (Dover, New York, 1957), p. 185.

Ikeuchi, H.

M. Watanabe, S. Takeda, H. Ikeuchi, Atlas of Arthroscopy (Springer, New York, 1979).

Leiner, D.

R. Prescott, D. Leiner, U.S. Patent Pend. Ser. 361,266.

Moore, D. T.

Prescott, R.

R. Prescott, D. Leiner, U.S. Patent Pend. Ser. 361,266.

Sands, P. J.

Takeda, S.

M. Watanabe, S. Takeda, H. Ikeuchi, Atlas of Arthroscopy (Springer, New York, 1979).

Watanabe, M.

M. Watanabe, S. Takeda, H. Ikeuchi, Atlas of Arthroscopy (Springer, New York, 1979).

J. Opt. Soc. Am. (2)

Other (5)

R. Prescott, D. Leiner, U.S. Patent Pend. Ser. 361,266.

M. Watanabe, S. Takeda, H. Ikeuchi, Atlas of Arthroscopy (Springer, New York, 1979).

Needlescope is a registered trade name of Dyonics, Inc., Andover, Mass.

Selfoc is a registered trade name of the Nippon Sheet Glass Co., Ltd., Osaka, Japan.

A. E. Conrady, Applied Optics and Optical Design, Part 1 (Dover, New York, 1957), p. 185.

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