66-321 30 mm Dia. L-BAL35 Precision Aspheric Lens; EFL=22.5mm; NA=0.66 BBAR 425-675nm
- Type
- Lens
- Subtype
- Aspheric Lens
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 30 mm
- EFL
- 22.5 mm
- BFL
- 13.73 mm
- R1
- 5.73 mm
- R2
- 300 mm
Material
- Name
- L-BAL35
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5891276536746055
- λ
- 587.6 nm
- B1
- 1.1626263
- C1
- 0.0125957437 μm2
- B2
- 0.325661051
- C2
- -0.0032691105 μm2
- B3
- 1.35132486
- C3
- 119.214596 μm2
66-321 30 mm Dia. L-BAL35 Precision Aspheric Lens; EFL=22.5mm; NA=0.66 BBAR 425-675nm
The 66-321 is a high-precision aspheric lens offered by Edmund Optics, featuring a 30 mm diameter and a numerical aperture of 0.66. This lens is designed for use in the visible spectrum, with a wavelength of 587.6 nm.
The lens is made from L-BAL35, a material from Ohara, which is known for its excellent optical properties. The aspheric design of the lens helps to reduce spherical aberration, providing sharper images than spherical lenses.
The lens has an effective focal length (EFL) of 22.5 mm, which is the distance over which the lens focuses light. This, combined with the high numerical aperture, allows the lens to capture a large amount of light, making it suitable for use in low-light conditions.
The lens is coated with BBAR (Broadband Anti-Reflection) coating, which reduces reflection and increases transmission in the 425-675 nm range. This coating helps to improve the contrast and clarity of the images captured by the lens.
The lens has a thickness of 4.57 mm at the edge and 14.4 mm at the center. The front and back surfaces of the lens are coated with the same BBAR coating, ensuring high transmission and low reflection from both sides.
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