Radial gradient-index eyepiece design.
Three- and four-element eyepiece designs are presented each with a different type of radial gradient-index distribution. Both quadratic and modified quadratic index profiles are shown to provide effective control of the field aberrations. In particular, the three-element design with a quadratic index profile demonstrates that the inhomogeneous power contribution can make significant contributions to the overall system performance, especially the astigmatism correction. Using gradient-index components has allowed for increased eye relief and field of view making these designs comparable with five- and six-element ones.
Bowen
J P
JP
Caldwell
J B
JB
Gardner
L R
LR
Haun
N
N
Houk
M T
MT
Kindred
D S
DS
Moore
D T
DT
Shiba
M
M
Wang
D Y
DY