LD4735 25.4 mm Dia. UVFS Double-Concave Lens; EFL=-75mm Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- -75 mm
- R1
- -69.6 mm
- R2
- 69.6 mm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4584623418371967
- λ
- 587.6 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
LD4735 25.4 mm Dia. UVFS Double-Concave Lens; EFL=-75mm Uncoated
The LD4735 is a spherical lens from Thorlabs, featuring a unique double-concave design with a diameter of 25.4 mm. This lens is specifically designed for use with a wavelength of 587.6 nm, making it suitable for a wide range of optical applications.
The lens's base shape is circular, and it has an effective focal length (EFL) of -75 mm, indicating its concave-concave nature. The center thickness of the lens is 3.5 mm, and it is made from UVFS material with the ID 'mal-1965'. The inner and outer radii are both 0, suggesting a symmetrical design.
Notably, the lens is uncoated, which may affect its performance in certain applications. However, this also means that it is more affordable than coated alternatives. The lens's web links are valid and indicate that it is currently in stock, making it a readily available option for those in need of a high-quality, double-concave lens.
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