OFR UV Laser Lenses

OFR Globe

Apodizers

Beam Expander

LASER LENSES for UV EXCIMER LASERS, 248 nm to 355 nm

Material: UV Grade Fused Silica

Design Wavelength: 300nm

Index @ 300nm

UV FS Trans.: 180nm - 2.3 µm

Wavelength	Focal Length Corrector
248 nm	- 4%
300 nm	--
355 nm	+ 2%

Laser	λ
Nd: YAG	213 nm
KrF	248 nm
Nd: YAG	266 nm
XeCl	308 nm
HeCd	325 nm
N2	337 nm
XeF	351 nm
Nd: YAG	355 nm

BROADBAND AR COATINGS
Description	Bandwidth	Avg. Reflectance	Power Rating*
UVB	240 - 360 nm	< 0.5%	200 MW/cm²
NUV	325 - 500 nm	< 0.5%	200 MW/cm²
*Power rating based upon 20ns pulses, 20Hz.

NARROWBAND AR COATINGS
Specify λ between	Bandwidth at 5% of peak	Avg. Reflectance	Power Rating*
213 - 355 nm	~ 8%	< 0.2%	500 MW/cm²
*Power rating based upon 20ns pulses, 20Hz.

For AR coating when ordering, insert AR coating at λ, for example,
LLU-25-100-UVB or LLU-25-140-248.

Catalog Number	Material	Diameter	Focal Length at 300 nm	Optimum Beam Diameter	Theoretical Focal Spot	R1 mm	R2 mm	CT
LLU-13-20-λ	UVFS	½" dia.	20.1 mm	2.6 mm	2.5 µm	12.70	-38.89	3.5
LLU-13-20N-λ	UVFS	½" dia.	-20.1 mm	2.6 mm	------	-12.70	44.62	2.5
LLU-13-25-λ	UVFS	½" dia.	24.7 mm	3.1 mm	2.6 µm	14.00	-79.99	3.5
LLU-13-25N-λ	UVFS	½" dia.	-25.1 mm	3.1 mm	------	-14.60	79.99	2.5
LLU-13-40--λ	UVFS	½" dia.	40.0 mm	4.4 mm	3.5 µm	22.80	-121.45	3.5
LLU-13-40N-λ	UVFS	½" dia.	-40.0 mm	4.4 mm	------	-22.80	141.32	2.5
LLU-25-63-λ	UVFS	1" dia.	63.0 mm	6.2 mm	3.9 µm	36.24	-192.73	5.5
LLU-25-63N-λ	UVFS	1" dia.	-62.2 mm	6.2 mm	------	-36.24	192.73	3.0
LLU-25-80-λ	UVFS	1" dia.	80.2 mm	7.3 mm	4.2 µm	45.59	-265.14	5.5
LLU-25-80N-λ	UVFS	1" dia.	-79.5 mm	7.3 mm	------	-45.59	265.14	3.0
LLU-25-100-λ	UVFS	1" dia.	100.2 mm	8.7 mm	4.3 µm	57.23	-326.28	5.0
LLU-25-100N-λ	UVFS	1" dia.	-99.6 mm	8.7 mm	------	-57.23	326.28	2.5
LLU-25-125-λ	UVFS	1" dia.	124.6 mm	10.2 mm	4.7 µm	73.10	-353.46	5.0
LLU-25-125N-λ	UVFS	1" dia.	-123.8 mm	10.2 mm	------	-73.10	356.46	3.0
LLU-25-140-λ	UVFS	1" dia.	140.5 mm	11.1 mm	4.8 µm	79.99	-471.01	5.0
LLU-25-140N-λ	UVFS	1" dia.	-139.9 mm	11.1 mm	------	-79.99	471.01	3.0
LLU-25-160-λ	UVFS	1" dia.	161.2 mm	12.3 mm	5.0 µm	90.13	-605.94	5.0
LLU-25-190-λ	UVFS	1" dia.	189.3 mm	14.0 mm	5.2 µm	111.60	-529.26	5.0
LLU-25-240-λ	UVFS	1" dia.	241.7 mm	16.6 mm	5.5 µm	136.75	-848.13	5.0
LLU-25-300-λ	UVFS	1" dia.	300.1 mm	19.7 mm	5.8 µm	169.63	-1061.04	4.5
LLU-25-300N-λ	UVFS	1" dia.	-299.3 mm	19.7 mm	------	-169.63	1061.04	4.5
LLU-25-380-λ	UVFS	1" dia.	381.5 mm	23.5 mm	6.2 µm	225.49	-1061.04	4.5
LLU-25-475-λ	UVFS	1" dia.	482.7 mm	23.5 mm	7.7 µm	235.56	Plano	4.5
LLU-25-610-λ	UVFS	1" dia.	620.6 mm	23.5 mm	9.9 µm	302.85	Plano	4.5
LLU-25-760-λ	UVFS	1" dia.	789.8 mm	23.5 mm	12.3 µm	385.44	Plano	4.5
LLU-25-1000-λ	UVFS	1" dia.	965.2 mm	23.5 mm	16.2 µm	471.01	Plano	4.0
LLU-25-2000-λ	UVFS	1" dia.	2174.3 mm	23.5 mm	32.4 µm	1061 04	Plano	4.0
LLU-51-150-λ	UVFS	2" dia.	150.5 mm	11.9 mm	4.8 µm	84.82	-529.26	8.5
LLU-51-190-λ	UVFS	2" dia.	189.5 mm	14.0 mm	5.2 µm	111.60	-529.26	7.0
LLU-51-240-λ	UVFS	2" dia.	238.1 mm	16.6 mm	5.5 µm	136.75	-760.00	6.5
LLU-51-300-λ	UVFS	2" dia.	300.2 mm	19.7 mm	5.8 µm	169.63	-1061.04	6.5
LLU-51-380-λ	UVFS	2" dia.	381.2 mm	23.5 mm	6.2 µm	225.22	-1061.04	5.5
LLU-51-475-λ	UVFS	2" dia.	475.1 mm	27.8 mm	6.5 µm	260.90	-2068.17	5.5
LLU-51-610-λ	UVFS	2" dia.	611.6 mm	33.6 mm	6.9 µm	357.41	-1800	5.5
LLU-51-760-λ	UVFS	2" dia.	762.7 mm	39.5 mm	7.3 µm	438.93	-2440	5.0
LLU-51-1000-λ	UVFS	2" dia.	992.3 mm	48.5 mm	7.9 µm	484.25	Plano	5.0
Other diameters and focal lengths available on custom basis. Please inquire.

Optics for Research · Ph 973-228-4480 · Fax 973-228-0915 · Email: info@ofr.com