BK7 Lenses

Specifications
Material:	BK7
Design Wavelength:	546.1nm
Design Index:	1.5183 ± 0.0005
Diameter Tolerance:	+0.0, -0.15mm
Paraxial Focal Length Tolerance:	±2%
Centration:	3 arc minutes
Clear Aperture:	>85%
Surface Figure:	λ/4@632.8nm
Surface Quality:	60/40 scratch/dig
Bevel:	0.25 mm x 45°
Coating:	Uncoated

BK7 Plano Convex Lens

Part No.	f (mm)	f (mm)	R1 (mm)	t c (mm)	t e (mm)	t b (mm)	Illustration
PCX1201	15.0	12.7	7.78	5.3	2.0	11.5
PCX1202	20.0	12.7	10.37	4.2	2.0	17.2
PCX1203	25.0	12.7	12.96	3.7	2.0	22.6
PCX1204	30.0	12.7	15.55	3.4	2.0	27.8
PCX1205	40.0	12.7	20.73	3.0	2.0	38.0
PCX1206	50.0	12.7	25.92	2.8	2.0	48.2
PCX1207	35.0	20.0	18.155	4.2	1.2	32.2
PCX1208	40.0	20.0	20.73	4.5	1.9	37.0
PCX1209	50.0	20.0	25.936	4.0	2.0	47.4
PCX1303	50.0	25.4	25.92	5.3	2.0	46.5
PCX1309	60.4	25.4	13.1	4.7	2.0	56.9
PCX1304	75.0	25.4	38.87	4.1	2.0	72.3
PCX1305	100.0	25.4	51.83	3.6	2.0	97.6
PCX1306	125.0	25.4	64.79	3.3	2.0	122.8
PCX1307	150.0	25.4	77.75	3.0	2.0	148.0
PCX1308	200.0	25.4	103.66	2.8	2.0	198.2

BK7 Plano Concave Lens

Part No.	f (mm)	F (mm)	R1 (mm)	tc (mm)	te (mm)	fb (mm)	Illustration
PCV1201	-15.0	12.7	7.78	2.0	5.3	-16.3
PCV1202	-20.0	12.7	10.37	2.0	4.1	-21.3
PCV1203	-25.0	12.7	12.96	2.0	3.7	-26.3
PCV1204	-30.0	12.7	15.55	2.0	3.4	-31.3
PCV1205	-40.0	12.7	20.73	2.0	3.0	-41.3
PCV1206	-50.0	12.7	25.92	2.0	2.8	-51.3
PCV1301	-25.0	25.4	12.97	2.0	10.9	-26.3
PCV1302	-35.0	25.4	18.14	2.0	7.2	-36.3
PCV1303	-50.0	25.4	25.92	2.0	5.3	-51.3
PCV1305	-75.0	25.4	38.87	2.0	4.1	-76.3
PCV1306	-100.0	25.4	51.83	2.0	3.6	-101.3
PCV1307	-150.0	25.4	77.75	2.0	3.0	-151.3
PCV1308	-200.0	25.4	103.66	2.0	2.7	-201.3

BK7 Double Convex Lens

Part No.	f (mm)	f (mm)	R1=R2 (mm)	t c (mm)	t e (mm)	t b (mm)	Illustration
DCX1201	20.0	12.7	20.01	4.0	2.0	18.6
DCX1202	25.0	12.7	25.28	3.6	2.0	23.8
DCX1203	30.0	12.7	30.52	3.3	2.0	28.9
DCX1204	40.0	12.7	40.95	3.0	2.0	39.0
DCX1301	25.4	25.4	24.71	9.0	2.0	22.2
DCX1314	35.0	25.4	35.09	6.8	2.0	32.8
DCX1315	40.0	25.4	40.40	6.1	2.0	37.9
DCX1302	50.0	25.4	50.92	5.2	2.0	48.3
DCX1316	60.0	25.4	61.40	4.7	2.0	58.5
DCX1303	75.0	25.4	77.04	4.1	2.0	73.6
DCX1304	100.0	25.4	103.05	3.6	2.0	98.8
DCX1305	125.0	25.4	129.02	3.3	2.0	123.9
DCX1306	150.0	25.4	154.97	3.0	2.0	149.0
DCX1307	200.0	25.4	206.84	2.8	2.0	199.0
DCX1308	250.0	25.4	258.70	2.6	2.0	249.1
DCX1309	300.0	25.4	310.55	2.5	2.0	299.2
DCX1310	400.0	25.4	413.80	2.4	2.0	399.0
DCX1311	500.0	25.4	517.91	2.3	2.0	499.2
DCX1312	750.0	25.4	774.30	2.3	2.0	748.8
DCX1313	1000.0	25.4	1036.23	2.2	2.0	999.3

BK7 Double Concave Lens

Part No.	f (mm)	f (mm)	R1=R2 (mm)	t c (mm)	t e (mm)	t b (mm)	Illustration
DCV1201	-25.0	12.7	26.25	2.0	3.6	-25.7
DCV1202	-30.0	12.7	31.44	2.0	3.3	-30.7
DCV1203	-40.0	12.7	41.80	2.0	3.0	-40.7
DCV1204	-50.0	12.7	52.17	2.0	2.8	-50.7
DCV1301	-25.0	25.0	26.25	2.0	8.6	-25.7
DCV1302	-35.0	25.4	36.62	2.0	6.5	-35.7
DCV1303	-50.0	25.4	52.17	2.0	5.1	-50.7
DCV1305	-75.0	25.4	78.09	2.0	4.1	-75.7
DCV1306	-100.0	25.4	104.00	2.0	3.6	-100.7