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| A375-B - f = 7.5 mm, NA = 0.3, Unmounted Rochester Aspheric Lens, AR: 650-1050 nm |
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| Product Summary: |
Features
- High NA (0.30)
- Diffraction Limited Performance
- Broadband AR Coated Optics in Stock
- Collimate or Focus Light with a Single Element
This Aspheric lens focuses or collimates light without introducing spherical aberration into the transmitted wavefront. For monochromatic sources, spherical aberration is often what prevents a single spherical lens from achieving diffraction limited performance when focusing or collimating light. Thus, an aspheric lens is often the best single element solution for many applications including collimating the output of a fiber or laser diode, coupling light into a fiber, spatial filtering, or imaging light onto a detector. All molded glass aspheres are also available premounted in non-magnetic 303 stainless steel lens cells that are engraved with the part number for easy identification.
Specifications
- Design Wavelength: 1550 nm
- Magnification: Infinite
- Numerical Aperture: 0.3
- Window Thickness: 0.275 mm
- Clear Aperture: 4.50 mm
- Laser Window Material / Index: N-BK7/1.5
- Effective Focal Length: 7.5 mm
- Glass: H-LAK54
- Working Distance: 5.90 mm
- Surface Quality: 60-40 Scratch-Dig
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| Aspheric Coefficients: |
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| ASP(2) |
| 5.15 | | -0.000506996 | | -0.000010137 | | -0.000000852 |
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