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Achromatic Doublet

Introduction

Achromatic doublets are cemented achromats made of two different lenses (Low dispersion positive from crown glass and high dispersion negative from flint glass). The difference of dispersion and shape of both lenses are designed to minimize the chromatic aberrations in blue (486.1nm), green (546.1nm) and red (656.3nm). Therefore, these lenses are able to support the entire visible wavelength spectrum.


Producer:Japan
Description
Description

The spherical aberration of achromatic doublets is better than singlets and minimized at infinite conjugate ratios.

Achromatic Doublets are coated on both surfaces with a broadband multi-layer anti-reflection coating for the visible wavelength (400 - 700nm).

Set the positive part to the side of the incident parallel beam and put the negative part to the side of the focal point to minimize spherical aberration.

The difference in focal length of a lens at each wave length is Chromatic aberration and is due to “dispersion of the glass”, the change in refractive index of glass according to wavelength. This can be corrected by combining glasses with low and high dispersions. Spherical aberration is when a ray enters a lens farther from its optical axis and has a shorter focus than a paraxial focus.


Model Diameter φD(mm) Focal length f(mm) Edge thickness te(mm) Center thickness tc(mm) Back focal length fb(mm) Centration(′) VS Unit Price Date Cart
DLB-10-20PM
10 20 5.1 6.7 16.6 <1
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Achromatic Doublet /DLB-10-20PM
DLB-10-25PM
10 25 4.9 6.1 22.1 <1
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Achromatic Doublet /DLB-10-25PM
DLB-10-30PM
10 30.1 4.7 5.7 27.4 <1
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Achromatic Doublet /DLB-10-30PM
DLB-10-40PM
10 40 4.6 5.3 37.5 <1
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Achromatic Doublet /DLB-10-40PM
DLB-10-50PM
10 50 4.4 5 47.5 <1
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Achromatic Doublet /DLB-10-50PM
DLB-10-60PM
10 60.1 4.4 4.9 57.6 <1
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Achromatic Doublet /DLB-10-60PM
DLB-10-70PM
10 69.9 4.3 4.7 67.3 <1
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Achromatic Doublet /DLB-10-70PM
DLB-10-80PM
10 80.1 4.2 4.6 77.8 <1
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Achromatic Doublet /DLB-10-80PM
DLB-10-100PM
10 100.5 4.2 4.5 98.1 <1
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Achromatic Doublet /DLB-10-100PM
DLB-12.7-25PM
12.7 25.1 5.3 7.3 21.5 <1
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Achromatic Doublet /DLB-12.7-25PM
DLB-12.7-30PM
12.7 30 5.2 6.8 26.7 <1
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Achromatic Doublet /DLB-12.7-30PM
DLB-12.7-40PM
12.7 40.1 4.9 6.1 36.9 <1
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Achromatic Doublet /DLB-12.7-40PM
DLB-12.7-50PM
12.7 50.1 4.7 5.7 47.3 <1
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Achromatic Doublet /DLB-12.7-50PM
DLB-12.7-60PM
12.7 60 4.6 5.4 57.3 <1
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Achromatic Doublet /DLB-12.7-60PM
DLB-12.7-70PM
12.7 69.9 4.5 5.2 67.5 <1
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Achromatic Doublet /DLB-12.7-70PM
DLB-12.7-80PM
12.7 79.9 4.5 5.1 77.4 <1
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Achromatic Doublet /DLB-12.7-80PM
DLB-12.7-100PM
12.7 100.1 4.3 4.8 97.9 <1
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Achromatic Doublet /DLB-12.7-100PM
DLB-15-25PM
15 25.2 6 8.8 20.7 <1
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Achromatic Doublet /DLB-15-25PM
DLB-15-30PM
15 30.1 5.7 8 26 <1
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Achromatic Doublet /DLB-15-30PM
DLB-15-40PM
15 40.1 5.2 6.9 36.5 <1
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Achromatic Doublet /DLB-15-40PM
DLB-15-50PM
15 50.1 5 6.3 47.1 <1
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Achromatic Doublet /DLB-15-50PM
DLB-15-60PM
15 59.9 4.8 5.9 57 <1
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Achromatic Doublet /DLB-15-60PM
DLB-15-70PM
15 70.2 4.8 5.7 67.4 <1
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Achromatic Doublet /DLB-15-70PM
DLB-15-80PM
15 79.9 4.7 5.5 77.1 <1
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Achromatic Doublet /DLB-15-80PM
DLB-15-100PM
15 100 4.5 5.2 97.3 <1
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Achromatic Doublet /DLB-15-100PM
DLB-20-30PM
20 30.6 6.8 10.9 24.9 <1
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Achromatic Doublet /DLB-20-30PM
DLB-20-40PM
20 40.1 6.2 9.2 35.3 <1
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Achromatic Doublet /DLB-20-40PM
DLB-20-50PM
20 50.2 5.7 8.1 46 <1
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Achromatic Doublet /DLB-20-50PM
DLB-20-60PM
20 60.2 5.4 7.4 56.6 <1
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Achromatic Doublet /DLB-20-60PM
DLB-20-70PM
20 70.1 5.2 6.9 66.7 <1
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Achromatic Doublet /DLB-20-70PM
DLB-20-80PM
20 79.9 5.1 6.6 76.6 <1
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Achromatic Doublet /DLB-20-80PM
DLB-20-100PM
20 99.5 4.9 6.1 96.4 <1
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Achromatic Doublet /DLB-20-100PM
DLB-20-120PM
20 120.3 4.7 5.7 117.3 <1
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Achromatic Doublet /DLB-20-120PM
DLB-20-150PM
20 149.8 4.6 5.4 147 <1
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Achromatic Doublet /DLB-20-150PM
DLB-20-170PM
20 170 4.6 5.3 167.2 <1
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Achromatic Doublet /DLB-20-170PM
DLB-20-200PM
20 200.1 4.5 5.1 197.3 <1
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Achromatic Doublet /DLB-20-200PM
DLB-20-220PM
20 220 4.5 5 216.9 <3
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Achromatic Doublet /DLB-20-220PM
DLB-20-250PM
20 250 4.4 4.9 247 <3
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Achromatic Doublet /DLB-20-250PM
DLB-20-300PM
20 300 4.3 4.7 297.1 <3
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Achromatic Doublet /DLB-20-300PM
DLB-25-40PM
25 40.9 7.7 12.5 34.2 <1
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Achromatic Doublet /DLB-25-40PM
DLB-25-50PM
25 50.1 7.1 10.9 44.9 <1
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Achromatic Doublet /DLB-25-50PM
DLB-25-60PM
25 60.1 6.7 9.8 55.2 <1
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Achromatic Doublet /DLB-25-60PM
DLB-25-70PM
25 69.9 6.3 9 65.3 <1
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Achromatic Doublet /DLB-25-70PM
DLB-25-80PM
25 80 6.2 8.5 75.9 <1
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Achromatic Doublet /DLB-25-80PM
DLB-25-100PM
25 100.2 5.9 7.7 96.5 <1
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Achromatic Doublet /DLB-25-100PM
DLB-25-120PM
25 119.8 5.6 7.2 116.2 <1
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Achromatic Doublet /DLB-25-120PM
DLB-25-150PM
25 149.6 5.5 6.7 146.2 <1
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Achromatic Doublet /DLB-25-150PM
DLB-25-170PM
25 170.4 5.3 6.4 167.1 <1
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Achromatic Doublet /DLB-25-170PM
DLB-25-180PM
25 179.8 5.5 6.5 —— <1
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Achromatic Doublet /DLB-25-180PM
DLB-25-200PM
25 200.1 5.2 6.1 197 <1
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Achromatic Doublet /DLB-25-200PM
DLB-25-220PM
25 222 5.2 6 218.9 <1
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Achromatic Doublet /DLB-25-220PM
DLB-25-250PM
25 250.8 5.1 5.8 247.7 <1
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Achromatic Doublet /DLB-25-250PM
DLB-25-300PM
25 300 5 5.6 296.6 <3
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Achromatic Doublet /DLB-25-300PM
DLB-25.4-40PM
25.4 40.9 7.6 12.5 34.2 <1
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Achromatic Doublet /DLB-25.4-40PM
DLB-25.4-50PM
25.4 50.1 7 10.9 44.9 <1
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Achromatic Doublet /DLB-25.4-50PM
DLB-25.4-60PM
25.4 60.1 6.6 9.8 55.2 <1
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Achromatic Doublet /DLB-25.4-60PM
DLB-25.4-70PM
25.4 69.9 6.2 9 65.3 <1
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Achromatic Doublet /DLB-25.4-70PM
DLB-25.4-80PM
25.4 80 6.1 8.5 75.9 <1
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Achromatic Doublet /DLB-25.4-80PM
DLB-25.4-100PM
25.4 100.2 5.8 7.7 96.5 <1
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Achromatic Doublet /DLB-25.4-100PM
DLB-25.4-120PM
25.4 119.8 5.6 7.2 116.2 <1
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Achromatic Doublet /DLB-25.4-120PM
DLB-25.4-150PM
25.4 149.6 5.4 6.7 146.2 <1
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Achromatic Doublet /DLB-25.4-150PM
DLB-25.4-170PM
25.4 170.4 5.3 6.4 167.1 <1
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Achromatic Doublet /DLB-25.4-170PM
DLB-25.4-180PM
25.4 179.8 5.4 6.5 —— <1
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Achromatic Doublet /DLB-25.4-180PM
DLB-25.4-200PM
25.4 200.1 5.1 6.1 197 <1
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Achromatic Doublet /DLB-25.4-200PM
DLB-25.4-220PM
25.4 222 5.1 6 218.9 <1
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Achromatic Doublet /DLB-25.4-220PM
DLB-25.4-250PM
25.4 250.8 5 5.8 247.7 <1
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Achromatic Doublet /DLB-25.4-250PM
DLB-25.4-300PM
25.4 300 5 5.6 296.6 <3
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Achromatic Doublet /DLB-25.4-300PM
DLB-30-50PM
30 50.3 8.6 14.1 43.5 <1
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Achromatic Doublet /DLB-30-50PM
DLB-30-60PM
30 60.3 8.1 12.6 53.9 <1
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Achromatic Doublet /DLB-30-60PM
DLB-30-70PM
30 70.8 7.7 11.5 65 <1
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Achromatic Doublet /DLB-30-70PM
DLB-30-80PM
30 80.3 7.4 10.7 75 <1
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Achromatic Doublet /DLB-30-80PM
DLB-30-100PM
30 100.7 6.8 9.5 96 <1
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Achromatic Doublet /DLB-30-100PM
DLB-30-120PM
30 120.1 6.6 8.8 115.7 <1
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Achromatic Doublet /DLB-30-120PM
DLB-30-150PM
30 150 6.3 8.1 146 <1
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Achromatic Doublet /DLB-30-150PM
DLB-30-170PM
30 169.9 6.1 7.7 166 <1
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Achromatic Doublet /DLB-30-170PM
DLB-30-180PM
30 179.8 5 6.5 —— <1
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Achromatic Doublet /DLB-30-180PM
DLB-30-200PM
30 200.2 6 7.3 196.4 <1
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Achromatic Doublet /DLB-30-200PM
DLB-30-220PM
30 220.2 5.9 7.1 216.5 <1
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Achromatic Doublet /DLB-30-220PM
DLB-30-250PM
30 249.7 5.8 6.9 246.1 <1
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Achromatic Doublet /DLB-30-250PM
DLB-30-300PM
30 300.4 5.7 6.6 296.9 <1
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Achromatic Doublet /DLB-30-300PM
DLB-30-350PM
30 350 5.6 6.4 346.2 <3
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Achromatic Doublet /DLB-30-350PM
DLB-30-400PM
30 400 5.5 6.2 396.3 <3
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Achromatic Doublet /DLB-30-400PM
DLB-30-450PM
30 450 5.5 6.1 446.5 <3
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Achromatic Doublet /DLB-30-450PM
DLB-30-500PM
30 500 5.5 6 496.5 <3
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Achromatic Doublet /DLB-30-500PM
DLB-40-60PM
40 60.2 11 19.3 50.2 <1
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Achromatic Doublet /DLB-40-60PM
DLB-40-70PM
40 70.3 10.2 17.2 61.7 <1
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Achromatic Doublet /DLB-40-70PM
DLB-40-80PM
40 80.2 9.7 15.8 71.8 <1
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Achromatic Doublet /DLB-40-80PM
DLB-40-100PM
40 99.9 8.9 13.7 92.8 <1
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Achromatic Doublet /DLB-40-100PM
DLB-40-120PM
40 120 8.3 12.3 113.7 <1
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Achromatic Doublet /DLB-40-120PM
DLB-40-150PM
40 150.1 7.7 10.9 144.5 <1
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Achromatic Doublet /DLB-40-150PM
DLB-40-170PM
40 169.7 7.5 10.3 164.5 <1
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Achromatic Doublet /DLB-40-170PM
DLB-40-200PM
40 199.7 7.2 9.6 194.8 <1
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Achromatic Doublet /DLB-40-200PM
DLB-40-220PM
40 220.7 7 9.2 216 <1
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Achromatic Doublet /DLB-40-220PM
DLB-40-250PM
40 249.1 6.9 8.8 244.6 <1
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Achromatic Doublet /DLB-40-250PM
DLB-40-300PM
40 300.5 6.7 8.3 296.1 <1
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Achromatic Doublet /DLB-40-300PM
DLB-40-350PM
40 349.9 6.5 7.9 345.8 <1
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Achromatic Doublet /DLB-40-350PM
DLB-40-400PM
40 399.7 6.4 7.6 395.7 <1
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Achromatic Doublet /DLB-40-400PM
DLB-40-450PM
40 450 6.3 7.4 445.5 <3
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Achromatic Doublet /DLB-40-450PM
DLB-40-500PM
40 500 6.3 7.2 495.6 <3
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Achromatic Doublet /DLB-40-500PM
DLB-50-80PM
50 81 13.4 22.9 69.1 <1
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Achromatic Doublet /DLB-50-80PM
DLB-50-100PM
50 100.5 12.3 19.9 90 <1
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Achromatic Doublet /DLB-50-100PM
DLB-50-120PM
50 120.2 11.4 17.7 111 <1
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Achromatic Doublet /DLB-50-120PM
DLB-50-150PM
50 150.7 10.5 15.5 142.8 <1
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Achromatic Doublet /DLB-50-150PM
DLB-50-170PM
50 169.8 10.1 14.5 162.5 <1
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Achromatic Doublet /DLB-50-170PM
DLB-50-200PM
50 200.1 9.6 13.3 193.3 <1
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Achromatic Doublet /DLB-50-200PM
DLB-50-220PM
50 220.7 9.3 12.7 214.5 <1
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Achromatic Doublet /DLB-50-220PM
DLB-50-250PM
50 249.4 9.1 12.1 243.4 <1
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Achromatic Doublet /DLB-50-250PM
DLB-50-300PM
50 299.5 8.7 11.2 293.7 <1
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Achromatic Doublet /DLB-50-300PM
DLB-50-350PM
50 350.2 8.6 10.7 344.5 <1
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Achromatic Doublet /DLB-50-350PM
DLB-50-400PM
50 400 8.3 10.2 394.7 <1
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Achromatic Doublet /DLB-50-400PM
DLB-50-450PM
50 451.5 8.3 9.9 446.2 <1
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Achromatic Doublet /DLB-50-450PM
DLB-50-500PM
50 500.3 8.1 9.6 495.2 <1
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Achromatic Doublet /DLB-50-500PM
DLB-50-600PM
50 599.9 8 9.2 594.4 <3
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Achromatic Doublet /DLB-50-600PM
DLB-50-700PM
50 700 7.8 8.9 694.6 <3
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Achromatic Doublet /DLB-50-700PM
DLB-50-800PM
50 800 7.7 8.6 794.9 <3
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Achromatic Doublet /DLB-50-800PM
DLB-50-1000PM
50 1000 7.6 8.3 995 <3
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Achromatic Doublet /DLB-50-1000PM
DLB-50.8-100PM
50.8 100.5 12.1 19.9 90 <1
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Achromatic Doublet /DLB-50.8-100PM
DLB-50.8-120PM
50.8 120.2 11.2 17.7 111 <1
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Achromatic Doublet /DLB-50.8-120PM
DLB-50.8-150PM
50.8 150.7 10.4 15.5 142.8 <1
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Achromatic Doublet /DLB-50.8-150PM
DLB-50.8-200PM
50.8 200.1 9.5 13.3 193.3 <1
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Achromatic Doublet /DLB-50.8-200PM
DLB-50.8-250PM
50.8 249.4 9 12.1 243.4 <1
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Achromatic Doublet /DLB-50.8-250PM
DLB-50.8-300PM
50.8 299.5 8.6 11.2 293.7 <1
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Achromatic Doublet /DLB-50.8-300PM
DLB-50.8-400PM
50.8 400 8.3 10.2 394.7 <1
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Achromatic Doublet /DLB-50.8-400PM
DLB-50.8-500PM
50.8 500.3 8.1 9.6 495.2 <1
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Achromatic Doublet /DLB-50.8-500PM
DLB-50.8-700PM
50.8 700 7.8 8.9 694.6 <3
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Achromatic Doublet /DLB-50.8-700PM
DLB-50.8-1000PM
50.8 1000 7.5 8.3 995.1 <3
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Achromatic Doublet /DLB-50.8-1000PM
DLB-60-170PM
60 170.8 11.4 17.7 161.9 <1
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Achromatic Doublet /DLB-60-170PM
DLB-60-200PM
60 200.3 10.7 16.1 192.1 <1
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Achromatic Doublet /DLB-60-200PM
DLB-60-250PM
60 250 10 14.3 242.8 <1
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Achromatic Doublet /DLB-60-250PM
DLB-60-500PM
60 499.1 8.6 10.7 493.5 <1
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Achromatic Doublet /DLB-60-500PM
DLB-60-600PM
60 597.9 8.3 10.1 592.6 <1
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Achromatic Doublet /DLB-60-600PM
DLB-80-150PM
80 149.7 17.2 30.3 133.6 <1
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Achromatic Doublet /DLB-80-150PM
DLB-80-200PM
80 200.8 14.7 24.3 188.2 <1
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Achromatic Doublet /DLB-80-200PM
DLB-80-300PM
80 299.8 12.4 18.8 290.2 <1
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Achromatic Doublet /DLB-80-300PM
DLB-80-500PM
80 502.6 10.7 14.5 494.9 <1
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Achromatic Doublet /DLB-80-500PM
DLB-80-800PM
80 800.6 9.7 12.1 794.2 <1
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Achromatic Doublet /DLB-80-800PM
DLB-100-200PM
100 200.6 21.8 37 181 <1
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Achromatic Doublet /DLB-100-200PM
DLB-100-300PM
100 297.3 18 28 283.2 <1
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Achromatic Doublet /DLB-100-300PM
DLB-100-500PM
100 499.6 15.2 21.1 488.8 <1
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Achromatic Doublet /DLB-100-500PM
DLB-100-800PM
100 799.5 13.7 17.4 790.4 <1
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Achromatic Doublet /DLB-100-800PM
DLB-100-1000PM
100 998.1 13.1 16.1 989.7 <1
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Achromatic Doublet /DLB-100-1000PM
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