69-440 12.0mm Dia. x 42.0mm FL; Plano-Convex Lens Laser V-Coat 633nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 12 mm
- EFL
- 42 mm
- BFL
- 40.22 mm
- R1
- 21.71 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5150823520020043
- λ
- 633 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
69-440 12.0mm Dia. x 42.0mm FL; Plano-Convex Lens Laser V-Coat 633nm
The 69-440 is a Plano-Convex spherical lens, characterized by its circular base shape and a diameter of 12.0mm. This lens is designed with a long focal length of 42.0mm, making it suitable for a variety of applications that require precise focusing. The lens is fabricated from the high-quality material n-BK7 Schott, ensuring durability and reliability.
The lens features a V-coat 633nm coating on both the front and back surfaces, enhancing its performance in laser applications at a wavelength of 633nm. This coating is specifically designed to reduce reflection and increase transmission, thereby improving the efficiency and quality of the laser beam.
The geometry of the lens includes an edge thickness of 1.85mm and a center thickness of 2.7mm. The lens's effective focal length (EFL) is 42.0mm, and the radius of curvature (R1) is 21.71mm. The back focal length (BFL) is 40.22mm, and both the inner and outer radii are 0mm.
This lens is available from Edmund Optics and is currently in stock, making it an ideal choice for those needing a high-quality, reliable optical component with quick delivery.