Glass Focusing Lens

Product TypePart NumberWavelength (nm)EFL (mm)Dia (mm)MaterialET (mm)WD (mm)AssemblyL x W (mm x mm)CT (mm)BFL (mm)
Plano-ConvexLBK-0.5-15-ET210641512.7BK72Single5.4211.40
Plano-ConvexLBK-0.5-20-ET210642012.7BK72Single4.2017.21
Plano-ConvexLBK-0.5-30-ET210643012.7BK72Single3.3927.75
Plano-ConvexLBK-0.5-50-ET210645012.7BK72Single2.8048.14
Plano-ConvexLBK-0.5-75-ET210647512.7BK72Single2.5073.34
Plano-ConvexLBK-0.5-100-ET2106410012.7BK72Single2.4098.41
Plano-ConvexLBK-0.5-120-ET2106412012.7BK72Single2.33118.45
Plano-ConvexLBK-0.5-140-ET2106414012.7BK72Single2.28138.48
Plano-ConvexLBK-0.5-160-ET2106416012.7BK72Single2.25158.51
Plano-ConvexLBK-1-35-ET210643525.4BK72Single7.2030.22
Plano-ConvexLBK-1-50-ET210645025.4BK72Single5.3046.48
Plano-ConvexLBK-1-60-ET210646025.4BK72Single2.5058.34
Plano-ConvexLBK-1-70-ET210647025.4BK72Single4.3567.11
Plano-ConvexLBK-1-75-ET210647525.4BK72Single4.1072.28
Plano-ConvexLBK-1-100-ET2106410025.4BK72Single3.6097.61
Plano-ConvexLBK-1-125-ET2106412525.4BK72Single3.30122.81
Plano-ConvexLBK-1-150-ET2106415025.4BK72Single3.00148.01
Plano-ConvexLBK-1-175-ET2106417525.4BK72Single2.90173.08
Plano-ConvexLBK-1-200-ET2106420025.4BK72Single2.80198.14
Plano-ConvexLBK-1-250-ET2106425025.4BK72Single2.60248.27
Plano-ConvexLBK-1-300-ET2106430025.4BK72Single2.50298.34
Plano-ConvexLBK-1-350-ET2106435025.4BK72Single2.46348.37
Plano-ConvexLBK-1-400-ET2106440025.4BK72Single2.40398.41
Plano-ConvexLBK-1-500-ET2106450025.4BK72Single2.30498.47
Plano-ConvexLBK-1-1000-ET21064100025.4BK72Single2.20998.54
Plano-ConvexLFS-1-35-ET21030-10903525.4Fused Silica2Single8.2029.56
Plano-ConvexLFS-1-50-ET21030-10905025.4Fused Silica2Single4.7046.88
Plano-ConvexLFS-1-75-ET21030-10907525.4Fused Silica2Single4.4072.08
Plano-ConvexLFS-1-100-ET21030-109010025.4Fused Silica2Single3.8097.48
Plano-ConvexLFS-1-125-ET21030-109012525.4Fused Silica2Single3.40122.74
Plano-ConvexLFS-1-150-ET21030-109015025.4Fused Silica2Single3.20147.88
Plano-ConvexLFS-1-200-ET21030-109020025.4Fused Silica2Single2.90198.08
Plano-ConvexLFS-1-250-ET21030-109025025.4Fused Silica2Single2.70248.21
Plano-ConvexLFS-1-300-ET21030-109030025.4Fused Silica2Single2.60298.27
Plano-ConvexLFS-1-500-ET21030-109050025.4Fused Silica2Single2.40498.41
Plano-ConvexLFS-1-1000-ET21030-1090100025.4Fused Silica2Single2.20998.54
Air Spaced FocusingYAGFL25106425.226Glass19.5Triplet (mounted)
Air Spaced Focusing
(Achromatic)
YAGFL25A10642521Glass18.8Triplet (mounted)
Air Spaced Focusing
(Achromatic)
YAGFL40A1064 / 6354036Glass29.8Triplet (mounted)
Air Spaced FocusingYAGFL47106446.441Glass32.4Triplet (mounted)
Air Spaced Focusing
(Achromatic)
YAGFL47A1064 / 6354746Glass34.9Triplet (mounted)
Air Spaced FocusingYAGFL5010645036Glass39.3Triplet (mounted)
Air Spaced Focusing (With Window)YAGFL50W10645036Glass32.3Triplet (mounted)
Air Spaced FocusingYAGFL58106458.241Glass49Triplet (mounted)
Air Spaced Focusing
(Achromatic)
YAGFL58A1064 / 6355841Glass47.4Triplet (mounted)
Air Spaced FocusingYAGFL66106465.834Glass53.4Doublet (mounted)
Air Spaced FocusingYAGFL7710647741Glass67.9Triplet (mounted)
Air Spaced Focusing
(Achromatic)
YAGFL77A1064 / 6357741Glass70.2Triplet (mounted)
Air Spaced FocusingYAGFL81106480.660Glass64.5Triplet (mounted)
Air Spaced FocusingYAGFL9010649041Glass88.2Triplet (mounted)
Air Spaced Focusing (With Window)YAGFL100W1064100.229Glass86.9Doublet (mounted)
Air Spaced FocusingYAGFL1201064121.641Glass112.5Triplet (mounted)
Air Spaced Focusing
(Achromatic)
YAGFL120A1064 / 63512060Glass104.3Doublet (mounted)
Air Spaced FocusingYAGFL125106412552Glass114.4Triplet (mounted)
Air Spaced FocusingYAGFL135106413552Glass126Doublet (mounted)
Air Spaced FocusingYAGFL1631064162.641Glass155.4Doublet (mounted)
Air Spaced FocusingYAGFL201106420160Glass189.6Doublet (mounted)
Air Spaced Focusing
(Achromatic)
YAGFL250A1064 / 635249.857Glass237.6Doublet (mounted)
Air Spaced Focusing532nmFL475324741Glass29.8Triplet (mounted)
Air Spaced Focusing532nmFL775327736Glass66.4Doublet (mounted)
Air Spaced Focusing532nmFL805328045Glass63.1Triplet (mounted)
Air Spaced Focusing532nmFL115532114.540Glass107.8Doublet (mounted)
Air Spaced Focusing532nmFL170532170.341Glass124.8Doublet (mounted)
Air Spaced Focusing532nmFL20053220038Glass193.8Doublet (mounted)
Air Spaced Focusing532nmFL271532270.641Glass255.1Doublet (mounted)
Air Spaced Focusing355nmFL92.635592.658Glass84.1Doublet (mounted)
Air Spaced Focusing355nmFL8635586.440Glass65.1Doublet (mounted)
Air Spaced Focusing355nmFL63.735563.736Glass51.7Triplet (mounted)
Air Spaced Focusing355nmFL603556040Glass47.8Triplet (mounted)
Air Spaced Focusing355nmFL4835548.234Glass33.6Doublet (mounted)
Air Spaced Focusing355nmFL47Q3554741Glass32.7Triplet (mounted)
Air Spaced Focusing355nmFL353553538Glass22.8Triplet (mounted)
Air Spaced Focusing355nmFL2535525.425Glass16.1Triplet (mounted)
Air Spaced Focusing355nmFL11535511540Glass98.8Doublet (mounted)
Air Spaced Focusing266nmFL242662427Glass13.8Triplet (mounted)
Air Spaced Focusing266nmFL4626646.323Glass43.1Doublet (mounted)
Air Spaced Focusing266nmFL5726657.340Glass44.6Triplet (mounted)
Air Spaced Focusing266nmFL8226682.448Glass75.1Doublet (mounted)
Air Spaced Focusing266nmFL11526611557Glass103Doublet (mounted)
Achromatic Cemented FocusingYAGFL-80-DA1064 / 450-7504180Glass12.3Doublet (cemented)18.9070.90
Achromatic Cemented FocusingYAGFL-100-DA1064 / 450-75041100Glass12.3Doublet (cemented)17.8089.50
Achromatic Cemented FocusingYAGFL-120-DA1064 / 450-75041120Glass12.3Doublet (cemented)16.80110.90
Achromatic Cemented FocusingYAGFL-148-DA1064 / 450-75041148Glass12.3Doublet (cemented)15.70140.20
Achromatic Cemented Focusing450-675NMFL100D450-67525100Glass6Doublet (cemented)7.9096.23
Achromatic Cemented Focusing450-675NMFL125D450-67525125Glass6Doublet (cemented)7.50121.50
Achromatic Cemented Focusing450-675NMFL150D450-67525150Glass5.9Doublet (cemented)7.20146.70
Achromatic Cemented Focusing450-675NMFL300D450-67525300Glass5.9Doublet (cemented)6.60297.10
Achromatic Cemented Focusing450-675NMFL350D450-67525350Glass5.9Doublet (cemented)6.50347.30
Achromatic Cemented Focusing450-675NMFL400D450-67525400Glass6Doublet (cemented)6.50398.10
Achromatic Cemented Focusing450-675NMFL75D450-6752575Glass5.9Doublet (cemented)8.5070.90

Plano-Convex & Plano-Concave

Glass Focusing Lens IR Focusing Lens Diagram

This series of glass focusing lenses are made of BK7 (LBK) or Fused Silica (LFS); light enters from one side and exits from the opposite side. Its purpose is to modify the wavefront curvature of the light through the lens. Then, focus the laser beam onto a very small precise spot size so that it is widely used in engraving graphic images, welding metal pieces together, or cutting various types of materials. We have different coatings and materials for different wavelengths.

Air Spaced

Air Spaced Glass Focusing Lens Diagram

The purpose of developing an Air Spaced Glass Focusing Lens is to minimize aberration and achieve the smallest spot size. The achromatic triplet focusing lenses are color corrected. Both working laser beam and inspection visible beam will focus on the same focus point or two closest ones.

Achromatic Cemented

Achromatic Cemented Glass Focusing Lens Diagram

These are cemented doublet lenses for 1064nm laser, as well as color corrected for visible wavelength. They are made up of a combination of low dispersion crown glass and high dispersion flint glass. They are suitable for laser cutting and welding applications where a vision system is equipped.

Diameter Tolerance: +0/-0.13mm
Thickness Tolerance: ±0.25mm
Focal Length Tolerance: ±2%
Edge Thickness Variation (ETV): ≤3 arc min.
Clear Aperture: >90%
Surface Flatness: λ/4 per 1″ Dia @632.8nm
Surface Quality: 40-20 S-D / 20-10 S-DAR Coating: R<0.2% per surface
Coating: Options Available | 260 – 400 nm / 400 – 700 nm / 750 – 110 nm / 1000 – 1200 nm / 1200 – 1600 nm

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