CPC G02B 17/0888 (2013.01) [G02B 17/061 (2013.01); G02B 17/0808 (2013.01); G02B 17/0856 (2013.01); G02B 27/141 (2013.01); G02B 27/142 (2013.01)] | 17 Claims |
1. A multi-band telescope optical system, comprising:
a concave primary mirror assembly comprising a primary mirror, a first spacer on the primary mirror, a first dichroic coating on the first spacer, and a second dichroic coating on the first spacer to separately reflect different optical bands to create different focal lengths and/or fields of view for each of the different optical bands;
a curved secondary mirror that reflects light through an aperture in the primary mirror assembly; and
a detector system for separately detecting the different optical bands with different image sensors.
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