89-269 25mm Dia. x 75mm FL; YAG-BBAR Coated; Double-Convex Lens YAG-BBAR 500-1100nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- 75 mm
- BFL
- 73.84 mm
- R1
- 76.66 mm
- R2
- -76.66 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5167984379050088
- λ
- 587.6 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
89-269 25mm Dia. x 75mm FL; YAG-BBAR Coated; Double-Convex Lens YAG-BBAR 500-1100nm
This is a high-quality double-convex lens from the renowned optical components manufacturer, Edmund Optics. The lens, identified as 89-269, has a diameter of 25mm and a focal length of 75mm, making it suitable for a wide range of optical applications.
The lens is made from the high-quality material n-BK7 Schott, a borosilicate glass known for its excellent optical properties, including a low coefficient of thermal expansion and high homogeneity. This material is widely used in the optical industry for its superior performance.
The lens features a YAG-BBAR coating on both the front and back surfaces. This coating, which stands for Yttrium Aluminum Garnet Broadband Anti-Reflection, is designed to reduce reflection and increase transmission across a broad spectrum, specifically 500-1100nm. This makes the lens ideal for use in applications that require high transmission and low loss, such as laser systems, imaging systems, and optical metrology.
The lens has a center thickness of 3.5mm and an edge thickness of 1.45mm, providing a robust and durable structure. The inner and outer radii are 0mm, indicating a symmetrical design. The base shape is circular, adding to its versatility in various applications.
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