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MgF2 Coated Double-Convex (DCX) Lenses

Double Convex Lenses are used in image relay applications, or for imaging objects at close conjugates. Double Convex Lenses have positive focal lengths, along with two convex surfaces with equal radii. Aberrations will increase as the conjugate ratios increase. DCV Lenses are used in a range of industries or applications. Uni-Optics offers Double Convex lenses with a variety of coating options.
  • product origin:

    China
  • shipping port:

    Fuzhou China
  • lead time:

    4 working weeks
  • payment:

    T/T Payment, Western Union
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  • description

1: What is the difference between convex lens and double convex lens?


One or both of the lens faces is part of a sphere and can be concave or convex. A lens is called a convex lens if it is thicker at the center than at the edges. ... Double convex lenses have focal points on both sides of the lens; these and the points at twice the focal length are used to locate objects and images.


2: What does a double convex lens do?


The fact that a double convex lens is thicker across its middle is an indicator that it will converge rays of light that travel parallel to its principal axis. A double convex lens is a converging lens. A double concave lens is also symmetrical across both its horizontal and vertical axis.


3: What is the focal length of a double convex lens?


If the radius of a curvature of a double convex lens is 10 cm and 15 cm and its refractive index is 1.5, then what is its focal length? A double convex lens 1.5 and the radius of curvature are 20 cm and 40 cm.



  double convex lenses


Common Specification:


Material: Optical glass/Fused Silica
Design wavelength: 546.1nm
Diameter tolerance: +0/-0.05mm
Focal tolerance: +/-2%
surface quality : 40-20 S/D 
Centration: 1 arcmin 
Surface flatness: N=3 △N=0.5 
Clear aperture: 90%
Bevel: Protective
Coating Optional: Single layer MgF2, Multiple layers BBAR coating
Designed for 0° Angle of Incidence


Part No. Material F(mm) Φ(mm) R1=R2(mm) Tc(mm) Te(mm) Fb(mm)
ULDX010010 BK7 10.0 10.0 9.450 4.9 2.0 8.20
ULDX015127 BK7 15.0 12.7 14.660 4.9 2.0 13.30
ULDX020127 BK7 20 12.7 20.010 4 2.0 18.60
ULDX025127 BK7 25 12.7 25.280 3.6 2.0 23.80
ULDX030127 BK7 30 12.7 30.520 3.3 2.0 28.90
ULDX040127 BK7 40 12.7 40.950 3 2.0 39.00
ULDX254254 BK7 25.4 25.4 24.710 9 2.0 22.20
ULDX035254 BK7 35 25.4 35.090 6.8 2.0 32.80
ULDX040254 BK7 40 25.4 40.400 6.1 2.0 37.90
ULDX050254 BK7 50 25.4 50.920 5.2 2.0 48.30
ULDX060254 BK7 60 25.4 61.400 4.7 2.0 58.50
ULDX075254 BK7 75 25.4 77.040 4.1 2.0 73.60
ULDX100254 BK7 100 25.4 103.050 3.6 2.0 98.80
ULDX125254 BK7 125 25.4 129.020 3.3 2.0 123.90
ULDX150254 BK7 150 25.4 154.970 3 2.0 149.00
ULDX200254 BK7 200 25.4 206.840 2.8 2.0 199.00
ULDX050030 BK7 50.0 30.0 50.731 6.5 2.0 47.80
ULDX500030 BK7 500.0 30.0 518.306 2.4 2.0 499.20
ULDX045038 BK7 45.0 38.0 44.836 10.4 2.0 41.40
ULDX100038 BK7 100.0 38.0 102.520 6.5 3.0 97.80
ULDX150038 BK7 150.0 38.0 154.570 5.4 3.0 148.20
ULDX200038 BK7 200.0 38.0 206.510 4.8 3.0 198.40
ULDX100050 BK7 100.0 50.0 102.060 9.2 3.0 96.90
ULDX200050 BK7 200.0 50.0 206.280 6.0 3.0 198.00
ULDX250050 BK7 250.0 50.0 258.220 5.4 3.0 248.20
ULDX400050 BK7 400.0 50.0 413.870 4.5 3.0 398.50
ULDX500050 BK7 500.0 50.0 517.580 4.2 3.0 498.60
JLDX015127 JGS1 15.0 12.7 12.900 5.3 2.0 13.10
JLDX020127 JGS1 20.0 12.7 17.690 4.4 2.0 18.40
JLDX025127 JGS1 25.0 12.7 22.380 3.8 2.0 23.70
JLDX030127 JGS1 30.0 12.7 27.040 3.5 2.0 28.80
JLDX040127 JGS1 40.0 12.7 36.310 3.1 2.0 38.90
JLDX025254 JGS1 25.0 25.4 21.220 10.4 2.0 21.10
JLDX035254 JGS1 35.0 25.4 30.990 7.4 2.0 32.40
JLDX050254 JGS1 50.0 25.4 45.100 5.7 2.0 48.00
JLDX075254 JGS1 75.0 25.4 68.320 4.4 2.0 73.50
JLDX100254 JGS1 100.0 25.4 91.420 3.8 2.0 98.70
JLDX050038 JGS1 50.0 38.0 44.100 11.6 3.0 45.90
JLDX100038 JGS1 100.0 38.0 90.900 7.0 3.0 97.60
JLDX150038 JGS1 150.0 38.0 137.130 5.7 3.0 148.00
JLDX200038 JGS1 200.0 38.0 183.130 5.0 3.0 198.30
JLDX500038 JGS1 500.0 38.0 459.480 3.8 3.0 498.70

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