(C) Copyright
HEAD
IKI
|
1:7.7 optical scheme with corrector
The primary mirror 1 reflects light to the secondary mirror 2 which collects
it on the focal surface of system. Lens corrector 3, 4 is placed between
focal surface and the secondary mirror which allows to obtain large flat
linear field of 300 mm diameter.
Focal length, mm |
11639 |
Linear field of view, mm |
300
|
Angular field of view |
1o28'
|
Central screening area, % |
25.8
|
Concentration of light energy at 632.8 nm wavelength
on the optical axis within the circles of diameter: |
|
0.017 mm, %, at least |
65
|
0.029 mm, %, at least |
83
|
The same at the edge of field of view, at 150 mm from the center,
within the circles of diameter: |
|
0.017 mm, %, at least |
57
|
0.029 mm, %, at least |
81
|
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