Meniscus Lens

Diameter Tolerance	+0/-0.1mm
Thickness tolerance	+/-0.1mm
Focus length tolerance	+/-1%
Surface Accuracy	λ/4 irregularity @632.8nm
Surface Quality	40-20
Centration	3 arcmin
Clear Aperture	>90%
Bevel	0.3mm x 45°
Coating	MgF2 or Custom

Diameter(mm)	Focal length(mm)	Tc(mm)	Te(mm)	Material	Product Number
18.0	73.5	4	3.0	SF8	ZTW001
18.0	-116.0	4.0	3.4	SF8	ZTW002
19.0	130.2	4	3.4	SF8	ZTW003
19.0	-215.0	4.0	3.7	SF8	ZTW004
25.4	50.0	5.4	1.5	BK7	ZTW005
25.4	-75.0	3.7	1.5	BK7	ZTW006
25.4	100.0	4	2.5	BK7	ZTW007
25.4	-150.0	4.0	3.0	BK7	ZTW008
25.4	200.0	3.5	2.8	BK7	ZTW009
31.5	-146.0	6.0	4.7	SF8	ZTW010
31.5	233.6	6	5.2	SF8	ZTW011
31.5	-363.0	6.0	5.5	SF8	ZTW012
40.0	175.2	7	5.2	SF8	ZTW013
40.0	-291.0	7.0	6.0	SF8	ZTW014
40.0	507.8	7	6.4	SF8	ZTW015