Abstract

Muscle tremor limits the resolution of hand-held field glasses. All mechanical or optical compensations of tremor movements depends on its spectral frequency distribution.

In this paper, the spectral frequency distribution was recorded for 22 emmetropic observers between 18 and 36 years of age. Only tremor frequencies less than 20 cps are of practical importance. The frequency spectrum is a characteristic of the single observer. The position of his individual peaks remains constant for a period of more than one year. The most usual frequency maxima are in the ranges 1.3–1.7, 2.7–3.5, and 6–11 cps.

Other factors, such as weight and shape of the instrument, luminance level, and structure of the visual field, are of less significant influence.

© 1965 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Correlation of Accommodation between the Two Eyes*

F. W. Campbell
J. Opt. Soc. Am. 50(7) 738-738 (1960)

Physiological Nystagmus in the Cat*†

Frederick W. Hebbard and Elwin Marg
J. Opt. Soc. Am. 50(2) 151-155 (1960)

Photonic non-contact estimation of blood lactate level

Chen Abraham, Yevgeny Beiderman, Nisan Ozana, Felix Tenner, Michael Schmidt, Martin Sanz, Javier Garcia, and Zeev Zalevsky
Biomed. Opt. Express 6(10) 4144-4153 (2015)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (13)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (3)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription