Figure 2
Comparison of kinoform transmission lenses of different design. All lenses or systems have identical focal length and are drawn to scale. Object (a) repeats the single lens from Fig. 1(e), (b) is equivalent and symmetric with respect to the vertical axis, (c) is the presented prism lens from Fig. 1(h), and (d) is the equivalent with single segments per row. (e) shows a stack of identical lenses of type (b). |