BK7 Series Lens Kit

Coating

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Large lens kits (40 lenses)

Code	Coating	Price	Delivery	Add to cart
140-0240	uncoated	944 $	4 - 5 days
140-0240-AR400-700	BBAR @ 400-700 nm, R<0.9 %	2202 $	Request
i 140-0240-AR650-1100	BBAR @ 650-1100 nm, R<1 %	2335 $	Request

140-0240-AR1050-1700	BBAR @ 1050-1700 nm, R<1 %	2456 $	Request
i 140-0240-AR532+1064	AR @ 532+1064 nm, R<0.5 %	2118 $	Request

i 140-0240-AR1064	AR @ 1064 nm, R<0.25 %	1876 $	Request

i 140-0240-AR532	AR @ 532 nm, R<0.25 %	1876 $	Request

Small lens kits (15 lenses)

Code	Coating	Price	Delivery	Add to cart
140-0215	uncoated	375 $	4 - 5 days
140-0215-AR400-700	BBAR @ 400-700 nm, R<0.9 %	1198 $	Request
i 140-0215-AR650-1100	BBAR @ 650-1100 nm, R<1 %	1271 $	3 - 4 weeks

140-0215-AR1050-1700	BBAR @ 1050-1700 nm, R<1 %	1392 $	Request
i 140-0215-AR532+1064	AR @ 532+1064 nm, R<0.5 %	932 $	3 - 4 weeks

i 140-0215-AR1064	AR @ 1064 nm, R<0.25 %	847 $	3 - 4 weeks

i 140-0215-AR532	AR @ 532 nm, R<0.25 %	847 $	Request

List of Lenses in Small N-BK7 Lens Kit

Code	Dia, mm*	F, mm	Centre Thickness CT, mm	Edge Thickness ET, mm
Plano-convex lenses (10 pcs.)
110-0205E	25.4	30	8.5	1.9
110-0207E	25.4	40	6.1	1.8
110-0209E	25.4	50	5.0	1.7
110-0211E	25.4	60	4.4	1.7
110-0215E	25.4	75	4.0	1.9
110-0219E	25.4	100	3.5	1.9
110-0227E	25.4	150	3.0	2.0
110-0231E	25.4	200	3.0	2.2
110-0247E	25.4	500	3.0	2.7
110-0259E	25.4	1000	3.0	2.8
Plano-concave lenses (5 pcs.)
112-0207E	25.4	-40	1.7	6.0
112-0209E	25.4	-50	2.8	6.0
112-0215E	25.4	-75	2.9	4.9
112-0219E	25.4	-100	3.1	4.6
112-0227E	25.4	-150	2.7	3.7

*Diameter tolerance: +0.0/-0.5 mm

List of Lenses in Large N-BK7 Lens Kit

Code	Dia, mm*	F, mm	Centre Thickness CT, mm	Edge Thickness ET, mm
Plano-convex lenses (16 pcs.)
110-0205E	25.4	30	8.5	1.9
110-0207E	25.4	40	6.1	1.8
110-0209E	25.4	50	5.0	1.7
110-0211E	25.4	60	4.4	1.7
110-0215E	25.4	75	4.0	1.9
110-0219E	25.4	100	3.5	1.9
110-0223E	25.4	125	3.2	1.9
110-0227E	25.4	150	3.0	2.0
110-0231E	25.4	200	3.0	2.2
110-0235E	25.4	250	3.0	2.4
110-0239E	25.4	300	3.0	2.5
110-0241E	25.4	350	3.0	2.6
110-0243E	25.4	400	3.0	2.6
110-0247E	25.4	500	3.0	2.7
110-0251E	25.4	700	3.0	2.8
110-0259E	25.4	1000	3.0	2.8
Biconvex lenses (12 pcs)
111-0204E	25.4	25	9.0	1.8
111-0206E	25.4	30	7.5	1.8
111-0208E	25.4	40	6.0	1.9
111-0210E	25.4	50	6.0	2.8
111-0214E	25.4	60	4.0	1.4
111-0216E	25.4	75	4.0	1.9
111-0218E	25.4	100	4.0	2.4
111-0222E	25.4	150	4.0	3.0
111-0226E	25.4	200	4.0	3.2
111-0228E	25.4	250	4.0	3.4
111-0234E	25.4	500	4.0	3.7
111-0250E	25.4	1000	4.0	3.8
Plano-concave lenses (6 pcs.)
112-0207E	25.4	-40	1.7	5.9
112-0209E	25.4	-50	2.8	6.0
112-0215E	25.4	-75	2.9	4.9
112-0219E	25.4	-100	3.1	4.6
112-0227E	25.4	-150	2.7	3.7
112-0231E	25.4	-200	3.0	3.8
Biconcave lenses (6 pcs.)
114-0204E	25.4	-25	4.8	10.2
114-0208E	25.4	-50	4.4	7.5
114-0212E	25.4	-75	3.7	5.5
114-0214E	25.4	-100	3.2	4.6
114-0220E	25.4	-150	3.0	4.0
114-0224E	25.4	-200	2.8	3.6

*Diameter tolerance: +0.0/-0.5 mm

Material	BK7
Surface quality	40-20 scratch & dig (MIL-PRF-13830B)
Clear aperture	90% of the diameter
Diameter tolerance	+0.00, -0.12 mm
Thickness tolerance	±0.5 mm
Surface irregularity	λ/8 @ 633 nm
Concentricity	3 arcmin
Paraxial focal length: BK7	±2% @ 546 nm

EKSMA Optics BK7 Lens Kits
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Lens kits contain a range of Ø 25.4 mm N-BK7 lenses with various different focal lengths. Kits include plano/convex, biconvex, plano/concave and biconcave lenses packed into a plastic box for safe handling and storage.

We offer lens kits of two sizes: large lens kits with 40 lenses and small lens kit with 15 lenses. Lens kits are packed into plastic boxes: large (40 pcs) - 35 x 30 x 6 cm, small (16 pcs) - 25 x 21 x 5 cm.

Lens kits can be supplied coated - have a look at different standard BBAR or AR coatings at particular laser wavelengths for high power laser applications.

Send us a request in case you would like to have a quote for a lens kit with other types of lenses and/or antireflective coatings. Standard UV FS Lens kits are also available for quick delivery.

BK7 Series Lens Kit

List of Lenses in Small N-BK7 Lens Kit

List of Lenses in Large N-BK7 Lens Kit

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