69-439 12.0mm Dia. x 30.0mm 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
- 30 mm
- BFL
- 28.02 mm
- R1
- 15.5 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
69-439 12.0mm Dia. x 30.0mm FL; Plano-Convex Lens Laser V-Coat 633nm
The 69-439 is a Plano-Convex spherical lens, part of the extensive catalog of optical elements offered by Edmund Optics. This lens boasts a diameter of 12.0mm and a focal length of 30.0mm, making it suitable for a wide range of applications.
The lens is made from the high-quality material n-BK7 Schott, a borosilicate crown glass known for its excellent optical properties, including a low refractive index and low dispersion. This makes the lens ideal for use in laser applications, particularly at the specified wavelength of 633nm.
The lens features a V-coat on both the front and back surfaces, specifically designed for laser use at 633nm. This coating enhances the lens's performance by reducing reflection and increasing transmission, thereby improving the efficiency and quality of the laser beam.
The geometry of the lens is carefully designed, with an edge thickness of 1.79mm and a center thickness of 3.0mm. The lens's inner and outer radii are 0mm, and the back focal length is 28.02mm. The lens's base shape is circular, adding to its versatility and applicability in various optical systems.
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