Zobrazeno 1 - 5
of 5
pro vyhledávání: '"James J. Kumler"'
Autor:
James J. Kumler, J. Brian Caldwell
Publikováno v:
Optical Manufacturing and Testing VII.
Optical designers are becoming increasingly aware of the importance of specifying and tolerancing slope errors on optical surfaces, especially aspheric surfaces. Slope errors can degrade system optical performance - in some cases even if the peak to
Autor:
Martin L. Bauer, James J. Kumler
Publikováno v:
Current Developments in Lens Design and Optical Systems Engineering.
New panoramic and immersive digital imaging developments have generated increased interest in high performance fisheye camera lenses suitable for 35 mm single lens reflex (SLR) cameras. Special concerns for such applications are the uniformity of ill
Autor:
Marc Neer, James J. Kumler
Publikováno v:
SPIE Proceedings.
A non-contact approach for the alignment of optical elements and systems is described which allows the operator to clearly distinguish tilt and decentration errors of the individual optical elements. Advantages over alternate methods are discussed, a
Publikováno v:
Space Optics for Astrophysics and Earth and Planetary Remote Sensing.
With the advent of advanced, automated fabrication techniques, the limiting factor in the production of complex aspheric space optics is increasing the ability to accurately measure and characterize optical surface parameters. In addition to increase
Autor:
R. C. Catura, David C. Jordan, James R. Lemen, C. G. Hull-Allen, Glenn Paul E, Albert F. Slomba, James J. Kumler, Ray G. Kusha
Publikováno v:
SPIE Proceedings.
Accurate prediction of focal plane performance is difficult at x-ray wavelengths for grazing incidence optical systems with very highly obscured apertures like the SXT mirror assembly. For such instruments, geometrical models give way to diffraction