Plano-convex lens element TS-02 series

singletBK7optical glass

Product overview
Plano-convex lenses have a positive focal length and are used for image enlargement, focusing and collimation in infinite-conjugate optical systems. They are normally illuminated from the convex side to minimize spherical aberration; the flat side produces the focused beam. Standard parts are supplied uncoated; anti-reflection (AR) and other coatings are available as custom options.

Applications

• Image enlargement in optical assemblies
• Beam collimation for lasers or LEDs
• Focusing in imaging and illumination systems (infinite conjugate)

Specifications (summary)
Material: B270 / BK-7 / F2
Refractive index (nd / ne): B270 1.5230/1.5251, BK-7 1.51680/1.51872, F2 1.62004/1.62408
Design wavelength: 587.6 nm (d-line)
Chamfering / protective chamfering: Dia.3–5: 0.1 mm; Dia.10–100: 0.2 mm
Standard values.

Tolerance (summary)
Diameter: +0 mm / -0.1 mm
Center thickness tolerance: ±0.2 mm
Focal length tolerance: ±2%
Decentering: within 3 minutes (3')
Surface quality: MIL60-40

Lineup (examples)

• TS-0259S — Dia.3 mm, F.L. 10 mm, Tc 2.00 mm, Material B270
• TS-0265S — Dia.10 mm, F.L. 30 mm, Tc 2.50 mm, Material BK-7
• TS-0294S — Dia.30 mm, F.L. 30 mm, Tc 10.00 mm, Material F2
• TS-0304S — Dia.30 mm, F.L. 300 mm, Tc 3.50 mm, Material BK-7
• TS-0436S — Dia.100 mm, F.L. 1000 mm, Tc 6.00 mm, Material BK-7

Characteristics / Technical specifications

• Materials available: B270, BK-7, F2
• Refractive indices (standard): B270 nd=1.5230 / ne=1.5251; BK-7 nd=1.51680 / ne=1.51872; F2 nd=1.62004 / ne=1.62408
• Design wavelength: 587.6 nm (d-line)
• Chamfering: Dia.3–5: 0.1 mm; Dia.10–100: 0.2 mm
• Diameter tolerance: +0 mm / -0.1 mm
• Center thickness tolerance: ±0.2 mm
• Focal length tolerance: ±2%
• Decentering: within 3 minutes (3')
• Surface quality: MIL60-40
• Standard items uncoated; anti-reflection and other coatings available on request
• Some large sizes or special items may be made-to-order or subject to stock availability