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	>95%
Surface Figure	λ/4@632.8nm
Surface Quality	60/40,40/20
Bevel	0.25 mm x 45°
Coating	Uncoated

Part No.	φ (mm)	f (mm)	R1 (mm)	te(mm)	tc (mm)	tb (mm)
JDC121	12.7	-25	26.25	3.6	2	-25.7
JDC122	12.7	-30	31.44	3.3	2	-30.7
JDC123	12.7	-40	41.8	3	2	-40.7
JDC124	12.7	-50	52.17	2.8	2	-50.7
JDC131	25	-25	26.25	8.6	2	-25.7
JDC1312	25.4	-35	36.62	6.5	2	-35.7
JDC1313	25.4	-50	52.17	5.1	2	-50.7
JDC1305	25.4	-75	78.09	4.1	2	-75.7
JDC1316	25.4	-100	104	3.6	2	-100.7