| 摘要 |
<p>An optical imaging system includes a rod lens array, whose individual lenses have a refractive index distribution optimized for high resolving power, which can be expressed by <MATH> wherein r is a radial distance from an optical axis of said rod lenses, n0 is the refractive index at the optical axis of said rod lenses, and g, h4 and h6 are coefficients of the refractive index distribution. The refractive index distribution coefficients h4 and h6 are defined, using parameters a, b, c, and d, as <MATH> <MATH> <MATH> <IMAGE></p> |
