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Fig. 3 | PhotoniX

Fig. 3

From: Conceptual design of the optical system of the 6.5m wide field multiplexed survey telescope with excellent image quality

Fig. 3

a Schematic of the designed optical system of MUST. M1 is the primary mirror, and M2 is the secondary mirror. b The WFC consists of lenses L1 ~ L5. The back surface of L1 (L1-B), the front surface of L2 (L2-F), the front surface of L3 (L3-F), and the back surface of L5 (L5-B) are aspheric. d1 is the distance between primary mirror and secondary mirror, d2 is the distance between secondary mirror and focal plane. dc1, dc2, dc3, dc4, dc5 are the distance between L1, L2, L3, L4, L5 and focal plane respectively

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