69-679 25mm Dia. x 100mm FL; Uncoated; Si Plano-Convex Lens
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- 100 mm
- BFL
- 99.12 mm
- R1
- 241.76 mm
Material
- Name
- Silicon
- Dispersion Equation
- Sellmeier
- n (λ)
- 3.4176022196178844
- λ
- 10600 nm
- B1
- 10.6684293
- C1
- 0.090912191 μm2
- B2
- 0.003043475
- C2
- 1.287660172 μm2
- B3
- 1.54133408
- C3
- 1218816 μm2
69-679 25mm Dia. x 100mm FL; Uncoated; Si Plano-Convex Lens
The 69-679 is a 25mm diameter, 100mm focal length plano-convex lens, sourced from Edmund Optics. This lens is made of silicon, specifically silicon sal vil 1957, and does not have any coating.
The lens's geometry is characterized by a 2.68mm thickness at the edge, increasing slightly to 3mm at the center. The effective focal length (EFL) is 100mm, and the radius of curvature (R1) is 241.76mm. The back focal length (BFL) is 99.12mm, and both the inner and outer radii are 0mm, indicating a flat surface on the opposite side of the convex curve.
This lens is designed for use with a wavelength of 10600nm, making it suitable for various applications in this spectrum range. Its spherical shape allows for a wide range of uses, and its uncoated surface can be advantageous in certain applications where coating might introduce unwanted reflections or interfere with the desired wavelength.
Please note that the lens's uncoated surface may be more susceptible to environmental factors such as dust and moisture, and may require more careful handling and cleaning. Always refer to the vendor's specifications and guidelines for optimal use and maintenance.
