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5 New Products in the Plano-Concave Spherical Lenses Family!«« View All New Products
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Plano-concave lenses diverge a collimated beam from a virtual focus and are commonly used in Galilean-type beam expanders. Given their negative focal length and negative spherical aberration, plano-concave lenses can be used to balance out aberrations of other lenses in the system. Thorlabs provides plano-concave lenses fabricated from N-BK7, N-SF11, UV-fused silica, calcium fluoride, and zinc selenide. N-SF11 offers a usage range that is slightly shifted to the red compared to N-BK7. However, N-SF11 glass is associated with more dispersion because it has a lower Abbe Number than N-BK7 glass. For more information on these substrates, please visit our Optical Substrates page.
Ø1" ZnSe Plano-Concave Lenses, AR Coated for 4.5 - 7.5 µm (View Product Family)
5 New Products!
LC7759-E2
Ø1" ZnSe Plano-Concave Lens, f = -25.4 mm, AR-Coated: 4.5 - 7.5 µm
LC7759-E2- Ø1" ZnSe Plano-Concave Lens, f = -25.4 mm, AR-Coated: 4.5 - 7.5 µm RELEASED: June 18, 2019
LC7421-E2
Ø1" ZnSe Plano-Concave Lens, f = -75.0 mm, AR-Coated: 4.5 - 7.5 µm
LC7421-E2- Ø1" ZnSe Plano-Concave Lens, f = -75.0 mm, AR-Coated: 4.5 - 7.5 µm RELEASED: June 18, 2019
LC7414-E2
Ø1" ZnSe Plano-Concave Lens, f = -100.0 mm, AR-Coated: 4.5 - 7.5 µm
LC7414-E2- Ø1" ZnSe Plano-Concave Lens, f = -100.0 mm, AR-Coated: 4.5 - 7.5 µm RELEASED: June 18, 2019
LC7235-E2
Ø1" ZnSe Plano-Concave Lens, f = -50.0 mm, AR-Coated: 4.5 - 7.5 µm
LC7235-E2- Ø1" ZnSe Plano-Concave Lens, f = -50.0 mm, AR-Coated: 4.5 - 7.5 µm RELEASED: June 18, 2019
LC7142-E2
Ø1" ZnSe Plano-Concave Lens, f = -200.0 mm, AR-Coated: 4.5 - 7.5 µm
LC7142-E2- Ø1" ZnSe Plano-Concave Lens, f = -200.0 mm, AR-Coated: 4.5 - 7.5 µm RELEASED: June 18, 2019


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