Bi-convexlensesFiniteconjugateimagingFocusingoropticalimagingBi-convexlensesareusefulforawiderangeoffiniteconjugateorilluminationapplications.TheselensesaremanufacturedfromFusedSilicaandaresupplieduncoated.Anti-reflectioncoatingsareavailableaslistedearlierinthissection.Toorderananti-reflectioncoatedlenssimplyappendthewavelengthinnanometerstotheproductnumber.Thesebi-convexlensesmaybecombinedwithotherlensestoformcompleximagingsystems. PartNo.(mm)D(mm)f(mm)@250nmf(mm)@532nmR(mm)Tc(mm)BCX-10U-03510.0 3538.635.62.4BCX-10U-050 10.0 5055.2 50.82.4BCX-10U-060 10.0 6066.261.0 2.4BCX-10U-07510.0 7582.876.32.4BCX-10U-10010.0 100 110.4101.7 2.4BCX-12.7U-01512.715 16.615.35.9BCX-12.7U-02512.72527.625.43.6BCX-12.7U-05012.75055.250.9 2.8BCX-12.7U-07512.77582.3 76.3 2.7BCX-12.7U-100 12.7100 110.4101.7 2.7BCX-15U-01815.01819.918.3 6.1BCX-15U-018 15.01921.019.3 4.1BCX-15U-01815.02022.120.3 4.9BCX-15U-018 19.12224.3 22.4 6.9BCX-15U-01819.12527.625.4 6.1BCX-15U-018 19.150 55.250.94.5BCX-15U-01825.4 25 27.625.49.0BCX-15U-01825.4 3841.9 38.6 6.3BCX-15U-01825.4 5055.250.8 5.1BCX-15U-018 25.4 7582.876.34.1BCX-15U-01825.4 100 110.4101.7 4.2 SpecificationsMaterial: UVFusedSilicaSurfaceFlatness: <λ/10@633nmSurfaceQuality: <10/5(bothsides)CentrationError: ≤3arcminFocalLengthTolerance :<±0.5%DiameterTolerance:<+0.00/-0.20mmThicknessTolerance: <±0.25mmClearAperture: ≥85%ofdiameter

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Fused Silica Spherical Lenses

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Bi-convex lenses

Finite conjugate imaging

Focusing or optical imaging

Bi-convex lenses are useful for a wide range of finite conjugate or illumination applications. These

lenses are manufactured from Fused Silica and are supplied uncoated. Anti-reflection coatings

are available as listed earlier in this section. To order an anti-reflection coated lens simply append the

wavelength in nanometers to the product number. These bi-convex lenses may be combined with other

lenses to form complex imaging systems.

Part No. (mm)	D (mm)	f(mm) @250nm	f (mm) @532nm	R (mm)	Tc (mm)
BCX-10U-035	10.0	35	38.6	35.6	2.4
BCX-10U-050	10.0	50	55.2	50.8	2.4
BCX-10U-060	10.0	60	66.2	61.0	2.4
BCX-10U-075	10.0	75	82.8	76.3	2.4
BCX-10U-100	10.0	100	110.4	101.7	2.4
BCX-12.7U-015	12.7	15	16.6	15.3	5.9
BCX-12.7U-025	12.7	25	27.6	25.4	3.6
BCX-12.7U-050	12.7	50	55.2	50.9	2.8
BCX-12.7U-075	12.7	75	82.3	76.3	2.7
BCX-12.7U-100	12.7	100	110.4	101.7	2.7
BCX-15U-018	15.0	18	19.9	18.3	6.1
BCX-15U-018	15.0	19	21.0	19.3	4.1
BCX-15U-018	15.0	20	22.1	20.3	4.9
BCX-15U-018	19.1	22	24.3	22.4	6.9
BCX-15U-018	19.1	25	27.6	25.4	6.1
BCX-15U-018	19.1	50	55.2	50.9	4.5
BCX-15U-018	25.4	25	27.6	25.4	9.0
BCX-15U-018	25.4	38	41.9	38.6	6.3
BCX-15U-018	25.4	50	55.2	50.8	5.1
BCX-15U-018	25.4	75	82.8	76.3	4.1
BCX-15U-018	25.4	100	110.4	101.7	4.2

Specifications

Material:	UV Fused Silica
Surface Flatness:	< λ/10 @ 633nm
Surface Quality:	<10/5(both sides)
Centration Error:	≤3 arcmin
Focal Length Tolerance :	<±0.5%
Diameter Tolerance:	<+0.00/-0.20mm
Thickness Tolerance:	<±0.25mm
Clear Aperture:	≥85% of diameter