50 mm Achromate

Achromats VIS, Positive 40-100 mm, Unmounted

LINOS® VIS Achromats provide reliable, high-quality performance for imaging and beam-shaping applications. Offered unmounted in large diameters from 40 mm to 100 mm, these positive achromats combine two carefully selected glass elements into a single cemented doublet to correct chromatic and spherical aberrations. This design provides sharp, high-contrast imaging across the visible spectrum. With tightly controlled focal lengths and minimal wavefront distortion, these precision-engineered doublets ensure optimal laser beam focusing and consistent performance in a wide range of optical applications.

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Our achromats provide exceptional spherical aberration correction, making them ideal for monochromatic and two-wavelength applications. They are supplied unmounted for easy integration into optical systems, with a wide selection of LINOS mounts and object holders available in various sizes.

The portfolio includes a broad range of standard achromats in different diameters and focal lengths, all equipped with a broadband anti-reflection coating (ARB2 VIS) for optimal transmission and minimal reflection.

For streamlined optical design, ZEMAX files are available for download. Each achromat type includes detailed optical data, specified glass types, and comprehensive tolerance specifications, enabling precise and reliable calculations for your optical systems.

Customized solutions—including special coatings and designs for higher-volume requirements—are available upon request. Contact us for a quote.

Achromat VIS Positive AI 898

Note: f = focal length, s = object distance, s' = image distance, Ø = lens diameter, dm = center thickness, dr = edge thickness, h = primary vertex (h=dm-dr-h'), h' = sagittal height secondary vertex, F, F' = focal points, H, H' = principal points; Tolerances: focal length f: ±1% image distance s': ±1%

Specifications broadband anti-reflective coating ARB2 VIS:

Example: ARB 2 VIS for 450-700 nm (AOI = 0°)

Guaranteed residual reflection < 0.5 % for angles of incidence 0° ≤ AOI ≤ 15° in the AR range Typical average residual reflection < 0.3 % for angles of incidence 0° ≤ AOI ≤ 15° in the AR range Damage threshold: H∞ > 30 J / cm² for 11 ns laser pulses (s-on-1) at 1064 nm and 10 Hz R range typical: 450–700 nm Design adaptable to the spectral range of 350 nm ≤ λ ≤ 950 nm and to higher angles of incidence

Product Achr. VIS ARB2; D=50.8; F=400 Achr. VIS ARB2; D=40; F=120 Achr. VIS ARB2; D=50; F=100 Achr. VIS ARB2; D=40; F=200 Achr. VIS ARB2; D=100; F=500 Achr. VIS ARB2; D=63; F=800 Achr. VIS ARB2; D=80; F=160 Achr. VIS ARB2; D=80; F=500 Achr. VIS ARB2; D=50; F=300 Achr. VIS ARB2; D=50; F=120 Achr. VIS ARB2; D=40; F=180 Achr. VIS ARB2; D=40; F=250 Achr. VIS ARB2; D=50; F=80 Achr. VIS ARB2; D=50.8; F=160 Achr. VIS ARB2; D=100; F=1000 Achr. VIS ARB2; D=50; F=200 Achr. VIS ARB2; D=63; F=150 Achr. VIS ARB2; D=63; F=500 Achr. VIS ARB2; D=40; F=160 Achr. VIS ARB2; D=80; F=310 Achr. VIS ARB2; D=40; F=90 Achr. VIS ARB2; D=40; F=300 Achr. VIS ARB2; D=50.8; F=250
Shape Circular Circular Circular Circular Circular Circular Circular Circular Circular Circular Circular Circular Circular Circular Circular Circular Circular Circular Circular Circular Circular Circular Circular
Mounted Unmounted
Mount Unmounted
Focal Length (+/-) 400.0 mm 120.0 mm 100.0 mm 200.0 mm 500.0 mm 800.0 mm 160.0 mm 500.0 mm 300.0 mm 120.0 mm 180.0 mm 250.0 mm 80.0 mm 160.0 mm 1000.0 mm 200.0 mm 150.0 mm 500.0 mm 160.0 mm 310.0 mm 90.0 mm 300.0 mm 250.0 mm
Coating ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS
Optic Size Ø 50.8 mm Ø 40.0 mm Ø 50.0 mm Ø 40.0 mm Ø 100.0 mm Ø 63.0 mm Ø 80.0 mm Ø 80.0 mm Ø 50.0 mm Ø 50.0 mm Ø 40.0 mm Ø 40.0 mm Ø 50.0 mm Ø 50.8 mm Ø 100.0 mm Ø 50.0 mm Ø 63.0 mm Ø 63.0 mm Ø 40.0 mm Ø 80.0 mm Ø 40.0 mm Ø 40.0 mm Ø 50.8 mm
Optic Center Thickness 10.5 mm 13.0 mm 17.5 mm 10.0 mm 22.0 mm 13.0 mm 29.0 mm 16.0 mm 12.0 mm 15.5 mm 10.8 mm 9.5 mm 20.0 mm 13.5 mm 21.5 mm 12.5 mm 21.0 mm 13.0 mm 11.7 mm 18.5 mm 14.3 mm 11.0 mm 11.5 mm
Tolerance thickness 0.2 mm 0.2 mm 0.2 mm 0.2 mm 0.2 mm 0.2 mm 0.2 mm 0.2 mm 0.2 mm 0.2 mm 0.2 mm 0.2 mm 0.2 mm 0.2 mm 0.2 mm 0.2 mm 0.2 mm 0.2 mm 0.2 mm 0.2 mm 0.2 mm 0.2 mm 0.2 mm
Optic Edge Thickness 8.6 mm 9.7 mm 11.2 mm 7.7 mm 16.0 mm 11.5 mm 18.8 mm 12.2 mm 9.6 mm 10.3 mm 8.2 mm 7.6 mm 11.9 mm 8.6 mm 18.5 mm 8.9 mm 13.9 mm 10.7 mm 9.0 mm 12.3 mm 9.8 mm 9.4 mm 8.4 mm
Optic Centering Accuracy (min,sec) 2.0 ' 6.0 ' 3.0 ' 3.0 ' 1.0 ' 2.0 ' 4.0 ' 2.0 ' 2.0 ' 3.0 ' 3.0 ' 3.0 ' 3.0 ' 3.0 ' 1.0 ' 2.0 ' 3.0 ' 2.0 ' 3.0 ' 3.0 ' 6.0 ' 3.0 ' 2.0 '
Tolerance of optic size - 0.08 mm - 0.07 mm - 0.07 mm - 0.07 mm - 0.09 mm - 0.08 mm - 0.08 mm - 0.08 mm - 0.07 mm - 0.07 mm - 0.07 mm - 0.07 mm - 0.07 mm - 0.08 mm - 0.09 mm - 0.07 mm - 0.08 mm - 0.08 mm - 0.07 mm - 0.08 mm - 0.07 mm - 0.07 mm - 0.08 mm
Weight (kg) 0.09 0.04 0.14 0.03 0.59 0.17 0.53 0.3 0.09 0.12 0.03 0.03 0.13 0.1 0.42 0.09 0.24 0.14 0.05 0.22 0.05 0.03 0.08
f' at X nm 400.33 mm
400.48 mm
403.14 mm 		119.99 mm
120.19 mm
120.96 mm 		101.57 mm
101.59 mm
102.06 mm 		201.26 mm
201.47 mm
203.02 mm 		499.43 mm
499.66 mm
503.04 mm 		802.79 mm
803.05 mm
808.31 mm 		160.1 mm
160.13 mm
160.89 mm 		500.64 mm
500.84 mm
504.17 mm 		300.18 mm
300.52 mm
302.86 mm 		121.36 mm
121.33 mm
121.82 mm 		181.66 mm
181.82 mm
183.18 mm 		249.91 mm
250.02 mm
251.7 mm 		80.14 mm
80.2 mm
80.65 mm 		159.49 mm
159.6 mm
160.72 mm 		1000.36 mm
1000.8 mm
1007.49 mm 		201.27 mm
201.49 mm
203.05 mm 		150.44 mm
150.59 mm
151.51 mm 		500.39 mm
500.58 mm
503.9 mm 		160.21 mm
160.36 mm
161.35 mm 		310.35 mm
310.53 mm
312.69 mm 		89.98 mm
90.18 mm
90.83 mm 		300.09 mm
300.43 mm
302.77 mm 		250.1 mm
250.22 mm
251.9 mm
s at X nm 398.27 mm 118.07 mm 100.24 mm 200.72 mm 495.82 mm 800.4 mm 157.72 mm 497.87 mm 298.27 mm 120.26 mm 181.42 mm 248.21 mm 78.68 mm 157.43 mm 998.48 mm 200.72 mm 149.32 mm 497.91 mm 158.5 mm 307.28 mm 89.07 mm 298.29 mm 248.14 mm
s' at X nm 395.59 mm 113.6 mm 92.03 mm 195.34 mm 488.87 mm 796.93 mm 144.45 mm 493.2 mm 294.31 mm 112.88 mm 174.92 mm 245.52 mm 69.05 mm 152.76 mm 988.52 mm 193.7 mm 138.3 mm 494.65 mm 154.64 mm 301.5 mm 81.78 mm 294.78 mm 244.65 mm

  • Minimal longitudinal chromatic aberration, enabling sharper, color-accurate images

  • Minimal spherical aberration, ensuring tight, high-resolution focusing

  • Minimal wavefront distortion, delivering high-contrast imaging results

  • Tight focal length tolerance for consistent, repeatable system performance

  • Broadband anti-reflection coated for visible wavelength range enhancing transmission and reducing glare (ARB2 VIS)

  • Unmounted for custom installation

  • ZEMAX files available, enabling easy system design and simulation

Achromat ZEMAX-Files

  • Imaging and microscopy

  • Beam Shaping

  • Illumination

  • Optical bench setup

Product Achr. VIS ARB2; D=50.8; F=400 Achr. VIS ARB2; D=40; F=120 Achr. VIS ARB2; D=50; F=100 Achr. VIS ARB2; D=40; F=200 Achr. VIS ARB2; D=100; F=500 Achr. VIS ARB2; D=63; F=800 Achr. VIS ARB2; D=80; F=160 Achr. VIS ARB2; D=80; F=500 Achr. VIS ARB2; D=50; F=300 Achr. VIS ARB2; D=50; F=120 Achr. VIS ARB2; D=40; F=180 Achr. VIS ARB2; D=40; F=250 Achr. VIS ARB2; D=50; F=80 Achr. VIS ARB2; D=50.8; F=160 Achr. VIS ARB2; D=100; F=1000 Achr. VIS ARB2; D=50; F=200 Achr. VIS ARB2; D=63; F=150 Achr. VIS ARB2; D=63; F=500 Achr. VIS ARB2; D=40; F=160 Achr. VIS ARB2; D=80; F=310 Achr. VIS ARB2; D=40; F=90 Achr. VIS ARB2; D=40; F=300 Achr. VIS ARB2; D=50.8; F=250
Shape Circular Circular Circular Circular Circular Circular Circular Circular Circular Circular Circular Circular Circular Circular Circular Circular Circular Circular Circular Circular Circular Circular Circular
Mounted Unmounted
Mount Unmounted
Focal Length (+/-) 400.0 mm 120.0 mm 100.0 mm 200.0 mm 500.0 mm 800.0 mm 160.0 mm 500.0 mm 300.0 mm 120.0 mm 180.0 mm 250.0 mm 80.0 mm 160.0 mm 1000.0 mm 200.0 mm 150.0 mm 500.0 mm 160.0 mm 310.0 mm 90.0 mm 300.0 mm 250.0 mm
Coating ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS ARB 2 VIS
Optic Size Ø 50.8 mm Ø 40.0 mm Ø 50.0 mm Ø 40.0 mm Ø 100.0 mm Ø 63.0 mm Ø 80.0 mm Ø 80.0 mm Ø 50.0 mm Ø 50.0 mm Ø 40.0 mm Ø 40.0 mm Ø 50.0 mm Ø 50.8 mm Ø 100.0 mm Ø 50.0 mm Ø 63.0 mm Ø 63.0 mm Ø 40.0 mm Ø 80.0 mm Ø 40.0 mm Ø 40.0 mm Ø 50.8 mm
Optic Center Thickness 10.5 mm 13.0 mm 17.5 mm 10.0 mm 22.0 mm 13.0 mm 29.0 mm 16.0 mm 12.0 mm 15.5 mm 10.8 mm 9.5 mm 20.0 mm 13.5 mm 21.5 mm 12.5 mm 21.0 mm 13.0 mm 11.7 mm 18.5 mm 14.3 mm 11.0 mm 11.5 mm
Tolerance thickness 0.2 mm 0.2 mm 0.2 mm 0.2 mm 0.2 mm 0.2 mm 0.2 mm 0.2 mm 0.2 mm 0.2 mm 0.2 mm 0.2 mm 0.2 mm 0.2 mm 0.2 mm 0.2 mm 0.2 mm 0.2 mm 0.2 mm 0.2 mm 0.2 mm 0.2 mm 0.2 mm
Optic Edge Thickness 8.6 mm 9.7 mm 11.2 mm 7.7 mm 16.0 mm 11.5 mm 18.8 mm 12.2 mm 9.6 mm 10.3 mm 8.2 mm 7.6 mm 11.9 mm 8.6 mm 18.5 mm 8.9 mm 13.9 mm 10.7 mm 9.0 mm 12.3 mm 9.8 mm 9.4 mm 8.4 mm
Optic Centering Accuracy (min,sec) 2.0 ' 6.0 ' 3.0 ' 3.0 ' 1.0 ' 2.0 ' 4.0 ' 2.0 ' 2.0 ' 3.0 ' 3.0 ' 3.0 ' 3.0 ' 3.0 ' 1.0 ' 2.0 ' 3.0 ' 2.0 ' 3.0 ' 3.0 ' 6.0 ' 3.0 ' 2.0 '
Tolerance of optic size - 0.08 mm - 0.07 mm - 0.07 mm - 0.07 mm - 0.09 mm - 0.08 mm - 0.08 mm - 0.08 mm - 0.07 mm - 0.07 mm - 0.07 mm - 0.07 mm - 0.07 mm - 0.08 mm - 0.09 mm - 0.07 mm - 0.08 mm - 0.08 mm - 0.07 mm - 0.08 mm - 0.07 mm - 0.07 mm - 0.08 mm
Weight (kg) 0.09 0.04 0.14 0.03 0.59 0.17 0.53 0.3 0.09 0.12 0.03 0.03 0.13 0.1 0.42 0.09 0.24 0.14 0.05 0.22 0.05 0.03 0.08
f' at X nm 400.33 mm
400.48 mm
403.14 mm 		119.99 mm
120.19 mm
120.96 mm 		101.57 mm
101.59 mm
102.06 mm 		201.26 mm
201.47 mm
203.02 mm 		499.43 mm
499.66 mm
503.04 mm 		802.79 mm
803.05 mm
808.31 mm 		160.1 mm
160.13 mm
160.89 mm 		500.64 mm
500.84 mm
504.17 mm 		300.18 mm
300.52 mm
302.86 mm 		121.36 mm
121.33 mm
121.82 mm 		181.66 mm
181.82 mm
183.18 mm 		249.91 mm
250.02 mm
251.7 mm 		80.14 mm
80.2 mm
80.65 mm 		159.49 mm
159.6 mm
160.72 mm 		1000.36 mm
1000.8 mm
1007.49 mm 		201.27 mm
201.49 mm
203.05 mm 		150.44 mm
150.59 mm
151.51 mm 		500.39 mm
500.58 mm
503.9 mm 		160.21 mm
160.36 mm
161.35 mm 		310.35 mm
310.53 mm
312.69 mm 		89.98 mm
90.18 mm
90.83 mm 		300.09 mm
300.43 mm
302.77 mm 		250.1 mm
250.22 mm
251.9 mm
s at X nm 398.27 mm 118.07 mm 100.24 mm 200.72 mm 495.82 mm 800.4 mm 157.72 mm 497.87 mm 298.27 mm 120.26 mm 181.42 mm 248.21 mm 78.68 mm 157.43 mm 998.48 mm 200.72 mm 149.32 mm 497.91 mm 158.5 mm 307.28 mm 89.07 mm 298.29 mm 248.14 mm
s' at X nm 395.59 mm 113.6 mm 92.03 mm 195.34 mm 488.87 mm 796.93 mm 144.45 mm 493.2 mm 294.31 mm 112.88 mm 174.92 mm 245.52 mm 69.05 mm 152.76 mm 988.52 mm 193.7 mm 138.3 mm 494.65 mm 154.64 mm 301.5 mm 81.78 mm 294.78 mm 244.65 mm

  • Minimal longitudinal chromatic aberration, enabling sharper, color-accurate images

  • Minimal spherical aberration, ensuring tight, high-resolution focusing

  • Minimal wavefront distortion, delivering high-contrast imaging results

  • Tight focal length tolerance for consistent, repeatable system performance

  • Broadband anti-reflection coated for visible wavelength range enhancing transmission and reducing glare (ARB2 VIS)

  • Unmounted for custom installation

  • ZEMAX files available, enabling easy system design and simulation

Achromat ZEMAX-Files

  • Imaging and microscopy

  • Beam Shaping

  • Illumination

  • Optical bench setup

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