Access to eBooks is limited to institutions that have purchased
or currently subscribe to the SPIE eBooks program. eBooks are not
available via an individual subscription. SPIE books (print and
digital) may be purchased individually on
Contact your librarian to recommend SPIE eBooks for your organization.
Hybrid lenses are being frequently used in infrared systems, primarily forcolor correction. We shall analyze one such lens, which is the third element of the MWIR objective shown in Fig. 18.1.
The prescription of the diffractive surface (front surface) is as follows:
1. Radius R 1 =21.246406mm
2. Conic constant Îº 1 =â0.151513 (prolate ellipse)
3. Phase coefficient P 2 =â5975.55048.
4. S 2 =Î»P 2 2ÏR 2 0 =0.004Ã(â5975.550548) 2ÏÃ100 2 =â3.804Ã10 â4
5. Free aperture D=11.84mm
Online access to SPIE eBooks is limited to subscribing institutions.