Abstract

The effects of aperture modulation are investigated in a Korean binocular objective lens in isolation from the rest of the system. The axial aberration characteristics are derived through computation from the design data. The MTF is measured for modulated apertures in the presence of axial aberration. The aperture modulation is carried out by providing a mask which has an opaque annulus on an optical flat and is in contact with the lens under test. The MTF varies with the area and the position of the opaque annulus. The MTF of the lens is improved by properly positioning the opaque annulus. The MTF curves with the modulated aperture are also compared with the constricted circular aperture having the same area as the modulated one. The performance of many optical systems can be improved by proper aperture modulation.

© 1983 Optical Society of America

Full Article  |  PDF Article

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 (8)

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 (1)

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

Metrics

You do not have subscription access to this journal. Article level metrics 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