APPENDIX III
Soviet spectroscopic equipment described in this book: Basic Characteristics [209]
Model Spectral
region, Ä Optical dispersing system
Relative aperture
Focal length,
mm Optical system*
Reciprocal of linear dispersion in  / m m for λ (in A) Model Spectral
region, Ä Optical dispersing
system of
colli- mator
of camera
of colli- mator
of camera
Optical system*
2000 3000 4000 5000 6000 7000 8000 10,000 ISP-22
ISP-28
2000-7000 Cornu prism 1:15 1:25 600 850 Fig. I 3 . 9 13.5 31.5 58.0 110
ISP-51 3600-10,000 Two 60° prisms and one Abbe prism 1:5
1:5 1:10
1:3 1:5 1:13
300 300 600
120 270 800
Fig. II 42
19 6.3
105 47 17.5
196 87 30
336 149 50
441 196 66
770 342 115 ISP-51A 3600-10,000 Two 60° prisms and
one Abbe prism 1:23 1300 Fig. Ill 2 5 9 . 3 16 21 37
KS-55
KSA-1 2000-10,000 Interchangeable quartz
and glass 30° prisms 1:40
1:25 quartz 1750
glass 1725 Fig. IV 1.2 4 . 6 11.5 5 . 5 quartz
glass 21 12
34
21.5 33 47 85
DFS-3
DFS-13 2000-10,000 Flat grating, 600 rulings/mm, Ν = 7200 or 1200 rulings/ mm Ν = 144,000
1:40 4000 Fig. V For a 1200 rulings/mm grating,
1st order 4 - 4 . 5
UM-2 3800-10,000 Constant-deviation
60° prism 1:6 280
Fig. VI MS 4000-7000 C onstant-deviation
60° prism 1:4.5 130 Fig. VI
DM 2000-10,000 Flat grating, 600
rulings/ mm 600 Fig. VH
SL-3 4000-7000 Three 60° prisms 1:8 190 380 Fig. VIII
* See following pages.
274 A P P E N D I X III
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Fig. I Fig. II
ί π
Fig. ΠΙ
^ • f k
Fig. IV
Fig. V
APPENDIX III 275
ψ ο ;
Ο
Fig.
VI
- J - Fig.
VE
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Fig.
