Products    /    Optics    /    Lenses    /    Bi - Concave Lenses
Bi - Concave Lenses

Focal length ranges from -30 to -1000 mm
Available Uncoated or with Single layer MgF2 / Broadband AR coating

These lenses have spherical concave surfaces on both sides. Holmarc manufactures many of these lenses as standard products. These lenses find applications in diverging light or in increasing focal length of an optical system. Our bi-concave 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
    Center thickness, tc :     2.5 mm








Model No. Diameter
D (mm)
Focal Length
F (mm)
Uncoated Single Layer MgF2 Broadband AR
HO-BVL25-1.2 HO-BVL25-1.2C HO-BVL25-1.2B 25 -30
HO-BVL25-1.6 HO-BVL25-1.6C HO-BVL25-1.6B 25 -40
HO-BVL25-02 HO-BVL25-02C HO-BVL25-02B 25 -50
HO-BVL25-3.2 HO-BVL25-3.2C HO-BVL25-3.2B 25 -80
HO-BVL25-04 HO-BVL25-04C HO-BVL25-04B 25 -100
HO-BVL25-06 HO-BVL25-06C HO-BVL25-06B 25 -150
HO-BVL25-08 HO-BVL25-08C HO-BVL25-08B 25 -200
HO-BVL25-12 HO-BVL25-12C HO-BVL25-12B 25 -300
HO-BVL25-20 HO-BVL25-20C HO-BVL25-20B 25 -500
HO-BVL25-40 HO-BVL25-40C HO-BVL25-40B 25 -1000
HO-BVL50-1.6 HO-BVL50-1.6C HO-BVL50-1.6B 50 -80
HO-BVL50-02 HO-BVL50-02C HO-BVL50-02B 50 -100
HO-BVL50-03 HO-BVL50-03C HO-BVL50-03B 50 -150
HO-BVL50-04 HO-BVL50-04C HO-BVL50-04B 50 -200
HO-BVL50-06 HO-BVL50-06C HO-BVL50-06B 50 -300
HO-BVL50-10 HO-BVL50-10C HO-BVL50-10B 50 -500
HO-BVL50-20 HO-BVL50-20C HO-BVL50-20B 50 -1000
Price List

Uncoated Price ($) Single Layer MgF2 Price ($) Broadband AR Price ($)
HO-BVL25-1.2 22.00 HO-BVL25-1.2C 26.00 HO-BVL25-1.2B 29.00
HO-BVL25-1.6 22.00 HO-BVL25-1.6C 26.00 HO-BVL25-1.6B 29.00
HO-BVL25-02 21.00 HO-BVL25-02C 26.00 HO-BVL25-02B 29.00
HO-BVL25-3.2 20.00 HO-BVL25-3.2C 25.00 HO-BVL25-3.2B 27.00
HO-BVL25-04 20.00 HO-BVL25-04C 24.00 HO-BVL25-04B 27.00
HO-BVL25-06 19.00 HO-BVL25-06C 23.00 HO-BVL25-06B 26.00
HO-BVL25-08 18.00 HO-BVL25-08C 22.00 HO-BVL25-08B 25.00
HO-BVL25-12 16.00 HO-BVL25-12C 21.00 HO-BVL25-12B 24.00
HO-BVL25-20 16.00 HO-BVL25-20C 21.00 HO-BVL25-20B 23.00
HO-BVL25-40 16.00 HO-BVL25-40C 21.00 HO-BVL25-40B 23.00
HO-BVL50-1.6 28.00 HO-BVL50-1.6C 33.00 HO-BVL50-1.6B 36.00
HO-BVL50-02 28.00 HO-BVL50-02C 32.00 HO-BVL50-02B 35.00
HO-BVL50-03 27.00 HO-BVL50-03C 32.00 HO-BVL50-03B 35.00
HO-BVL50-04 27.00 HO-BVL50-04C 31.00 HO-BVL50-04B 34.00
HO-BVL50-06 26.00 HO-BVL50-06C 31.00 HO-BVL50-06B 33.00
HO-BVL50-10 24.00 HO-BVL50-10C 29.00 HO-BVL50-10B 32.00
HO-BVL50-20 24.00 HO-BVL50-20C 29.00 HO-BVL50-20B 32.00

* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *




Bi – Concave Lens Ø25 - 02

Model No. HO - BVL25 - 02
$ 18.00

Bi – Concave Lens Ø25 - 04

Model No. HO - BVL25 - 04
$ 17.00

Bi – Concave Lens Ø25 - 1.2

Model No. HO - BVL25 - 1.2
$ 19.00

Home | Products | Supports | Company | Contact Us

|

©2022 Holmarc Opto-Mechatronics Ltd. All rights reserved.

Follow us