Cylindrical Plano-concave Lens (Synthetic Fused Silica) / CLSQ-N
Cylindrical plano-concave lens has a concave curvature in the vertical direction and has no curvature in the horizontal direction.When used in combination with a plano-convex cylindrical lens an elliptical shaped beam can be sharped into a circular beam for use in semiconductor and other laser applications.
Plano Concave Cylindrical lenses are available in highstrength synthetic fused silica which has high laser damage threshold used in applications with 350nm ultraviolet light.Cylindrical lenses are often used in an optical system to change the shape and aspect ratio of the illumination light beam.
Common Specifications
| Material | Synthetic fused silica |  |
|---|---|---|
| Design Wavelength | 546.1nm | |
| Refractive index | ne=1.460 | |
| Coating | Uncoated | |
| Laser Damage Threshold | 4 J/cm2 Laser pulse with 10ns, repetition frequency 20Hz | |
| Clear Aperture | 90% of square or rectangle to actual dimension | |
| Surface Quality (Scratch−Dig) | 20 - 10 |
| Part Number | A×B | Focal Length ｆ |
Edge Thickness te |
Center Thickness tc |
Back Focal Length fb |
Radius of Curvature r |
|---|---|---|---|---|---|---|
| CLSQ-1010-15N | 10×10 | −15 | 4 | 1.9 | −16.3 | 6.9 |
| CLSQ-1010-20N | 10×10 | −20 | 3 | 1.5 | −21.0 | 9.2 |
| CLSQ-1010-25N | 10×10 | −25 | 3 | 1.9 | −26.3 | 11.5 |
| CLSQ-1010-30N | 10×10 | −30 | 3 | 2.1 | −31.4 | 13.8 |
| CLSQ-1010-40N | 10×10 | −40 | 3 | 2.3 | −41.6 | 18.4 |
| CLSQ-1020-15N | 10×20 | −15 | 4 | 1.9 | −16.3 | 6.9 |
| CLSQ-1020-20N | 10×20 | −20 | 3 | 1.5 | −21.0 | 9.2 |
| CLSQ-1020-25N | 10×20 | −25 | 3 | 1.9 | −26.3 | 11.5 |
| CLSQ-1020-30N | 10×20 | −30 | 3 | 2.1 | −31.4 | 13.8 |
| CLSQ-1020-40N | 10×20 | −40 | 3 | 2.3 | −41.6 | 18.4 |
| CLSQ-1515-20N | 15×15 | −20 | 6 | 2.1 | −21.5 | 9.2 |
| CLSQ-1515-25N | 15×15 | −25 | 5 | 2.2 | −26.5 | 11.5 |
| CLSQ-1515-30N | 15×15 | −30 | 4 | 1.8 | −31.2 | 13.8 |
| CLSQ-1515-40N | 15×15 | −40 | 4 | 2.4 | −41.6 | 18.4 |
| CLSQ-1525-20N | 15×25 | −20 | 6 | 2.1 | −21.5 | 9.2 |
| CLSQ-1525-25N | 15×25 | −25 | 5 | 2.2 | −26.5 | 11.5 |
| CLSQ-1525-30N | 15×25 | −30 | 4 | 1.8 | −31.2 | 13.8 |
| CLSQ-1525-40N | 15×25 | −40 | 4 | 2.4 | −41.6 | 18.4 |
| CLSQ-2020-25N | 20×20 | −25 | 7 | 1.2 | −25.8 | 11.5 |
| CLSQ-2020-30N | 20×20 | −30 | 6 | 1.7 | −31.2 | 13.8 |
| CLSQ-2020-40N | 20×20 | −40 | 5 | 2 | −41.4 | 18.4 |
| CLSQ-2020-50N | 20×20 | −50 | 4 | 1.7 | −51.2 | 23 |
| CLSQ-2020-60N | 20×20 | −60 | 4 | 2.1 | −61.5 | 27.6 |
| CLSQ-2020-70N | 20×20 | −70 | 4 | 2.4 | −71.6 | 32.2 |
| CLSQ-2020-80N | 20×20 | −80 | 4 | 2.6 | −81.8 | 36.8 |
| CLSQ-2020-100N | 20×20 | −100 | 4 | 2.9 | −102.0 | 46 |
| CLSQ-2020-130N | 20×20 | −130 | 4 | 3.2 | −132.2 | 59.8 |
| CLSQ-2020-150N | 20×20 | −150 | 4 | 3.3 | −152.2 | 69 |
| CLSQ-2020-200N | 20×20 | −200 | 4 | 3.5 | −202.4 | 92 |
| CLSQ-2020-250N | 20×20 | −250 | 4 | 3.6 | −252.4 | 115 |
| CLSQ-2020-300N | 20×20 | −300 | 4 | 3.6 | −302.5 | 138 |
| CLSQ-2040-25N | 20×40 | −25 | 7 | 1.2 | −25.8 | 11.5 |
| CLSQ-2040-30N | 20×40 | −30 | 6 | 1.7 | −31.2 | 13.8 |
| CLSQ-2040-40N | 20×40 | −40 | 5 | 2 | −41.4 | 18.4 |
| CLSQ-2040-50N | 20×40 | −50 | 4 | 1.7 | −51.2 | 23 |
| CLSQ-2040-60N | 20×40 | −60 | 4 | 2.1 | −61.5 | 27.6 |
| CLSQ-2040-70N | 20×40 | −70 | 4 | 2.4 | −71.6 | 32.2 |
| CLSQ-2040-80N | 20×40 | −80 | 4 | 2.6 | −81.8 | 36.8 |
| CLSQ-2050-100N | 20×50 | −100 | 4 | 2.9 | −102.0 | 46 |
| CLSQ-2050-130N | 20×50 | −130 | 4 | 3.2 | −132.2 | 59.8 |
| CLSQ-2050-150N | 20×50 | −150 | 4 | 3.3 | −152.2 | 69 |
| CLSQ-2050-200N | 20×50 | −200 | 4 | 3.5 | −202.4 | 92 |
| CLSQ-2050-250N | 20×50 | −250 | 4 | 3.6 | −252.4 | 115 |
| CLSQ-2050-300N | 20×50 | −300 | 4 | 3.6 | −302.5 | 138 |
| CLSQ-3030-50N | 30×30 | −50 | 7 | 1.4 | −51.0 | 23 |
| CLSQ-3030-60N | 30×30 | −60 | 6 | 1.6 | −61.1 | 27.6 |
| CLSQ-3030-70N | 30×30 | −70 | 6 | 2.3 | −71.6 | 32.2 |
| CLSQ-3030-80N | 30×30 | −80 | 5 | 1.8 | −81.2 | 36.8 |
| CLSQ-3030-100N | 30×30 | −100 | 5 | 2.5 | −101.7 | 46 |
| CLSQ-3030-130N | 30×30 | −130 | 5 | 3.1 | −132.1 | 59.8 |
| CLSQ-3030-150N | 30×30 | −150 | 5 | 3.3 | −152.3 | 69 |
| CLSQ-3030-200N | 30×30 | −200 | 5 | 3.8 | −202.6 | 92 |
| CLSQ-3030-250N | 30×30 | −250 | 5 | 4 | −252.8 | 115 |
| CLSQ-3030-300N | 30×30 | −300 | 5 | 4.2 | −302.9 | 138 |
| CLSQ-3040-50N | 30×40 | −50 | 7 | 1.4 | −51.0 | 23 |
| CLSQ-3040-60N | 30×40 | −60 | 6 | 1.6 | −61.1 | 27.6 |
| CLSQ-3040-70N | 30×40 | −70 | 6 | 2.3 | −71.6 | 32.2 |
| CLSQ-3040-80N | 30×40 | −80 | 5 | 1.8 | −81.2 | 36.8 |
| CLSQ-3050-100N | 30×50 | −100 | 5 | 2.5 | −101.7 | 46 |
| CLSQ-3050-130N | 30×50 | −130 | 5 | 3.1 | −132.1 | 59.8 |
| CLSQ-3050-150N | 30×50 | −150 | 5 | 3.3 | −152.3 | 69 |
| CLSQ-3050-200N | 30×50 | −200 | 5 | 3.8 | −202.6 | 92 |
| CLSQ-3050-250N | 30×50 | −250 | 5 | 4 | −252.8 | 115 |
| CLSQ-3050-300N | 30×50 | −300 | 5 | 4.2 | −302.9 | 138 |
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