8
4. DESIGN AND PRINCIPLE
The telescope (fig.1, 2) consists of three basic units such as the telescope
tube, equatorial mounting, pier with supports or tripod and supply unit.
The tube 1
(fig.1) is the basic part of the telescope, which embodies the
optical units such as a primary mirror, corrector, eyepiece set and finderscope.
The primary mirror 1
(fig. 3) is fastened with the collet bushing 2 in the
center hole. The blending tube 3 on the collet bushing prevents stray light. The
Fig. 3.
Assemble of primary mirror together with eyepiece set:
1 - mirror; 2 - bushing; 3 - blending tube; 4 - screws;
5 - bushing; 6 - focusing mechanism; 7 - diagonal mirror; 8 - eyepiece;
9 - screw; 10 - back flange; 11 - screw
1
2
3
11
10
8
9
7
6
5
4