Meniscus lenses is made with laser grade zinc selenide with computer optimized anti-reflection coatings. We control the quality of the optic from material, through fabrication and coating to ensure you receive the highest quality optic in the market.
This wide range of Meniscus lenses have been prepared to fit most OEM, Industrial and Medical laser systems. They are ideally suited for laser heat treating, welding and cutting. All have been manufactured to high-quality laser specifications for high-power applications.

Specifications
Material	ZnSe Laser Grade C.V.D. type
Diameter Tolerances	+.000", -.005"
Thickness Tolerances	±.010"
Surface Figure	< λ/40 wavelength @ 10.6μm
ETV	</= 0.0015"
Focal Length Tolerance	±1.0%
Surface Quality	< 20/10 scratch-dig Laser Finish
Spectral Performance
Standard AR Coating type Both Sides @ 10.6μm (AR)
Absorption	< 0.20 % total
Reflectance	< 0.20% per surface @ 10.6μm
Transmittance	> 99.4% typical
Ultra Low Absorption AR Coating type Both Sides @ 10.6μm (ULA)
Absorption	< 0.13 % total
Reflectance	< 0.25% per surface
Transmittance	> 99.4% typical
Dual Band AR Coating type Both Sides @ 10.6μm and .633μm (DBAR)
Absorption	< 0.20% total
Reflectance	< 0.25% per surface @ 10.6μm
Transmittance	> 99.3% @ 10.6μm with > 90% @.633μm

P/N	Dia	EFL(inch)	ET(inch)
LMZ-0715-ET2.0	0.750''	1.50''	0.080''
LMZ-0720-ET2.0	0.750''	2.00''	0.080''
LMZ-0725-ET2.0	0.750''	2.50''	0.080''
LMZ-0730-ET2.0	0.750''	3.00''	0.080''
LMZ-0735-ET2.0	0.750"	3.50"	0.080"
LMZ-0738-ET2.0	0.750"	3.75"	0.080"
LMZ-0740-ET2.0	0.750"	4.00"	0.080"
LMZ-0750-ET2.0	0.750"	5.00"	0.080"
LMZ-1015-ET2.0	1.00''	1.50''	0.080''
LMZ-1025-ET3.0	1.00''	2.50''	0.120''
LMZ-1030-ET3.0	1.00''	3.00''	0.120''
LMZ-1035-ET3.0	1.00''	3.50''	0.120''
LMZ-1040-ET3.0	1.00''	4.00''	0.120''
LMZ-1050-ET3.0	1.00''	5.00''	0.120''
LMZ-1060-ET3.0	1.00''	6.00''	0.120''
LMZ-1075-ET3.0	1.00''	7.50''	0.120''
LMZ-10A0-ET3.0	1.00''	10.0''	0.120''
LMZ-1125-ET4.0	1.10''	2.50''	0.160''
LMZ-1125-ET6.0	1.10''	2.50''	0.236''
LMZ-1135-ET3.0	1.10''	3.50''	0.160''
LMZ-1138-ET4.0	1.10''	3.75''	0.160''
LMZ-1150-ET4.0	1.10''	5.00''	0.160''
LMZ-1150-ET6.0	1.10''	5.00''	0.236''
LMZ-1160-ET6.0	1.10''	6.00''	0.236''
LMZ-1175-ET6.0	1.10''	7.50''	0.236''
LMZ-11A0-ET6.0	1.10''	10.0''	0.236''
LMZ-1550-ET4.0	1.50''	5.00''	0.160''
LMZ-1590-ET7.4	1.50''	9.00''	0.290''
LMZ-15A0-ET7.4	1.50''	10.00''	0.290''
LMZ-1525-ET6.0	1.50''	2.50''	0.236''
LMZ-1530-ET6.0	1.50''	3.00''	0.236''
LMZ-1535-ET6.0	1.50''	3.50''	0.236''
LMZ-1540-ET6.0	1.50"	4.00"	0.236''
LMZ-1550-ET6.0	1.50''	5.00''	0.236''
LMZ-1575-ET6.0	1.50''	7.50''	0.236''
LMZ-1550-ET7.4	1.50''	5.00''	0.290''
LMZ-1575-ET7.4	1.50''	7.50''	0.290''
LMZ-15A0-ET7.4	1.50"	10.0"	0.290"
LMZ-40-130-ET7.6	40mm	130mm	0.300"
LMZ-40-250-ET7.6	40mm	250mm	0.300"
LMZ-50-175-ET9.0	50mm	175mm	0.354"
LMZ-50-250-ET9.0	50mm	250mm	0.354"
LMZ-1550-ET9.0	1.50''	5.00''	0.354''
LMZ-1575-ET9.0	1.50''	7.50''	0.354''
LMZ-1550-ET9.0-ULA (ultra-low absorption)	1.50''	5.00''	0.354''
LMZ-1575-ET9.0-ULA (ultra-low absorption)	1.50''	7.50''	0.354''
LMZ-1850-ET9.0	1.75''	5.00''	0.354''
LMZ-1875-ET9.0	1.75''	7.50''	0.354''
LMZ-2050-ET7.87	2.00''	5.00''	0.310''
LMZ-2075-ET7.87	2.00''	7.50''	0.310''
LMZ-2088-ET7.87	2.00''	8.75''	0.310''
LMZ-20A0-ET7.87	2.00"	10.0"	0.310"
LMZ-20A3-ET7.87	2.00"	12.5"	0.310"
LMZ-2050-ET9.0	2.00''	5.00''	0.354''
LMZ-2075-ET9.0	2.00''	7.50''	0.354''
LMZ-20A0-ET9.0	2.00"	10.0"	0.354"
LMZ-2050-ET9.7	2.00''	5.00''	0.380''
LMZ-2075-ET9.7	2.00''	7.50''	0.380''
LMZ-20A0-ET9.7	2.00''	10.00''	0.380''
LMZ-2550-ET7.87	2.50"	5.00"	0.310"
LMZ-2575-ET7.87	2.50"	7.50''	0.310"
LMZ-2588-ET7.87	2.50"	8.75''	0.310"
LMZ-25A0-ET7.87	2.50"	10.0"	0.310"
★The above are about standard products,they can also be custom made