Table 8.

Optical Elements and Spacings for COHNA

Surface Number	Description	Optic Number	Thickness	Glass Type
1	Glass slide		0.150 mm	air
2			0.950 mm	silica
3			0.150 mm	air
4	Opto-Sigma aspheric lens	023–2250	8.800 mm	B270
5			4.554 mm	air
6	Edmund Optics aspheric lens	49589	9.750 mm	fused silica
7			3.955 mm	air
8	Generic glass for interference filters		6.000 mm	Borofloat
9			2.000 mm	air
10	Edmund Optics singlet	48821 UV-VIS 0.5–1% Loss	7.250 mm	C79–80
11			27.542 mm	air