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Bi - Convex Lenses

Focal length ranges from 15 to 1000 mm
Available Uncoated or with Single layer MgF2 / Broadband AR coating

Bi-convex lenses are positive spherical lenses having convex surfaces on both sides. Holmarc manufactures bi-convex lenses with equal radii on both sides as standard stock optics. Our bi-convex lenses are available in three options; uncoated, single layer MgF2 and broadband AR coated.



    Material :     BK7 or equivalent
    Effective Focal Length Tolerance :     ± 1%
    Diameter Tolerance :     + 0.0, - 0.2 mm
    Centering Tolerance :     ≤ 3 arc min
    Surface Quality :     40 - 20 (scratch-dig)
    Clear Aperture :     > 90% of Diameter
    Design Wavelength :     587.6 nm
    Coating :     Uncoated / Single layer MgF2 / Broadband AR

These lenses are available in uncoated, single layer MgF2 coated and Broadband AR coated options.









Model No. Diameter
D (mm)
Focal Length
F (mm)
Edge Thickness
Te (mm)
Uncoated Single Layer MgF2 Broadband AR
HO-BXL12.5-1.2 HO-BXL12.5-1.2C HO-BXL12.5-1.2B 12.5 15 2
HO-BXL12.5-1.6 HO-BXL12.5-1.6C HO-BXL12.5-1.6B 12.5 20 2
HO-BXL12.5-02 HO-BXL12.5-02C HO-BXL12.5-02B 12.5 25 2
HO-BXL12.5-2.4 HO-BXL12.5-2.4C HO-BXL12.5-2.4B 12.5 30 2
HO-BXL12.5-3.2 HO-BXL12.5-3.2C HO-BXL12.5-3.2B 12.5 40 2
HO-BXL12.5-04 HO-BXL12.5-04C HO-BXL12.5-04B 12.5 50 2
HO-BXL12.5-08 HO-BXL12.5-08C HO-BXL12.5-08B 12.5 100 2
HO-BXL25-01 HO-BXL25-01C HO-BXL25-01B 25 25 2
HO-BXL25-1.6 HO-BXL25-1.6C HO-BXL25-1.6B 25 40 2
HO-BXL25-02 HO-BXL25-02C HO-BXL25-02B 25 50 2
HO-BXL25-3.2 HO-BXL25-3.2C HO-BXL25-3.2B 25 80 2
HO-BXL25-04 HO-BXL25-04C HO-BXL25-04B 25 100 2
HO-BXL25-06 HO-BXL25-06C HO-BXL25-06B 25 150 2
HO-BXL25-08 HO-BXL25-08C HO-BXL25-08B 25 200 2
HO-BXL25-12 HO-BXL25-12C HO-BXL25-12B 25 300 2
HO-BXL25-20 HO-BXL25-20C HO-BXL25-20B 25 500 2
HO-BXL25-40 HO-BXL25-40C HO-BXL25-40B 25 1000 2
HO-BXL50-1.6 HO-BXL50-1.6C HO-BXL50-1.6B 50 80 3
HO-BXL50-02 HO-BXL50-02C HO-BXL50-02B 50 100 3
HO-BXL50-03 HO-BXL50-03C HO-BXL50-03B 50 150 3
HO-BXL50-04 HO-BXL50-04C HO-BXL50-04B 50 200 3
HO-BXL50-06 HO-BXL50-06C HO-BXL50-06B 50 300 3
HO-BXL50-10 HO-BXL50-10C HO-BXL50-10B 50 500 3
HO-BXL50-20 HO-BXL50-20C HO-BXL50-20B 50 1000 3
Price List

Uncoated Price ($) Single Layer MgF2 Price ($) Broadband AR Price ($)
HO-BXL12.5-1.2 18.00 HO-BXL12.5-1.2C 22.00 HO-BXL12.5-1.2B 25.00
HO-BXL12.5-1.6 17.00 HO-BXL12.5-1.6C 21.00 HO-BXL12.5-1.6B 24.00
HO-BXL12.5-02 16.00 HO-BXL12.5-02C 20.00 HO-BXL12.5-02B 23.00
HO-BXL12.5-2.4 15.00 HO-BXL12.5-2.4C 20.00 HO-BXL12.5-2.4B 22.00
HO-BXL12.5-3.2 14.00 HO-BXL12.5-3.2C 19.00 HO-BXL12.5-3.2B 21.00
HO-BXL12.5-04 13.00 HO-BXL12.5-04C 18.00 HO-BXL12.5-04B 20.00
HO-BXL12.5-08 12.00 HO-BXL12.5-08C 17.00 HO-BXL12.5-08B 20.00
HO-BXL25-01 22.00 HO-BXL25-01C 26.00 HO-BXL25-01B 29.00
HO-BXL25-1.6 22.00 HO-BXL25-1.6C 26.00 HO-BXL25-1.6B 29.00
HO-BXL25-02 21.00 HO-BXL25-02C 26.00 HO-BXL25-02B 29.00
HO-BXL25-3.2 20.00 HO-BXL25-3.2C 25.00 HO-BXL25-3.2B 27.00
HO-BXL25-04 20.00 HO-BXL25-04C 24.00 HO-BXL25-04B 27.00
HO-BXL25-06 19.00 HO-BXL25-06C 23.00 HO-BXL25-06B 26.00
HO-BXL25-08 18.00 HO-BXL25-08C 22.00 HO-BXL25-08B 25.00
HO-BXL25-12 16.00 HO-BXL25-12C 21.00 HO-BXL25-12B 24.00
HO-BXL25-20 16.00 HO-BXL25-20C 20.00 HO-BXL25-20B 23.00
HO-BXL25-40 16.00 HO-BXL25-40C 20.00 HO-BXL25-40B 23.00
HO-BXL50-1.6 28.00 HO-BXL50-1.6C 33.00 HO-BXL50-1.6B 36.00
HO-BXL50-02 28.00 HO-BXL50-02C 32.00 HO-BXL50-02B 35.00
HO-BXL50-03 27.00 HO-BXL50-03C 32.00 HO-BXL50-03B 35.00
HO-BXL50-04 27.00 HO-BXL50-04C 31.00 HO-BXL50-04B 34.00
HO-BXL50-06 26.00 HO-BXL50-06C 31.00 HO-BXL50-06B 33.00
HO-BXL50-10 24.00 HO-BXL50-10C 29.00 HO-BXL50-10B 32.00
HO-BXL50-20 24.00 HO-BXL50-20C 29.00 HO-BXL50-20B 32.00

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