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4 terms
Photonics Dictionary: H
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spherical x
H x
hemispherical cavity
Laser cavity bounded by a plane mirror and a concave spherical mirror with the plane mirror located at the center of curvature of the concave mirror.
Hartmann test
A test for spherical aberration, coma or astigmatism in which incident rays from a point source are isolated by small holes in a metal disc located close to the lens or mirror under test....
Hindle sphere
A null optic in the form of a concave spherical mirror; used for the test and evaluation of a hyperboloidal aspheric surface.
holographic lens
A photographic recording of interference patterns between a plane wave and a spherical wave on a high-resolution photographic emulsion.
Photonics Dictionary
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