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.
J P
JP
Bowen
J B
JB
Caldwell
L R
LR
Gardner
N
N
Haun
M T
MT
Houk
D S
DS
Kindred
D T
DT
Moore
M
M
Shiba
D Y
DY
Wang