Optical Lenses

Thorlabs LA1270-B Lens, 18 mm – N-BK7 – Plano-Convex – Diameter: 18 mm – f = 25 mm – Coated: 650-1050nm – Surface Quality: 40-20

Thorlabs LA1470-A Плоско-выпуклая линза

Thorlabs LA1540-A Coated Plano Convex Lens. – f = 15.0 mm ***MPN LA1540-A ***OEM Thorlabs ***SKU*** 52071

ThorLabs LA4327 – f=75.3mm, 01/2″ UV Fused Silica Plano-Convex Lens, Uncoated New Check BMI Stock for More Items ***72392***

This is a Thorlabs LC1439-A – N-BK7 Plano-Concave Lens, �1/2″, f = -50.0 mm, ARC: 350-700 nm. As Thorlabs states: This Plano-Concave lens, which is fabricated from RoHS-compliant N-BK7 glass, is available A-Coated. N-BK7 is probably the most common optical glass used for high quality optical components. It is typically chosen whenever the additional benefits of UV fused silica (i.e., good transmission further into the UV and a lower coefficient of thermal expansion) are not necessary. However, for particularly harsh environments where the optic will be exposed to alkalis and acids, consider our N-SF11 plano-concave lenses.

Thorlabs LJ1363L2-B N-BK7 Plano-Convex Cylindrical Lens, (LOT OF 3) – Antireflection Coating: 650-1050 nm – f = 400.00 mm – H = 30.00 mm – L = 60.0 mm ***MPN LJ1363L2-B ***OEM Thorlabs ***SKU*** 52094

Specifications: – Material: Fused Silica – Diameter: 25.4 mm – EFL: 500.1 mm ***MPN 5-2425-500 ***OEM Special Optics ***SKU*** 28138

Specifications: – Material: Fused Silica – Diameter: 25.4 mm – EFL: 149.9 mm ***MPN 5-2425-150-830 ***OEM Special Optics ***SKU*** 28139

This is a Zinc selenide 5 1/2 inch (140mm) diameter lens. 0.56″ thick..