1. What’s the Ball lenses?
Ball lenses are highly transparent spheres made of optical glasses. They are used to focus light into fibers as in diode laser-to-fiber coupling as well as fiber-to-fiber coupling. They have high coupling efficiency and should be much easier to align than traditional lenses due to their physical shape. Uni Optics offers a variety of Ball Lenses in a range of substrates for performance in the ultraviolet to the NIR.
2. What are the ball lenses used for?
Ball Lenses are commonly used to improve signal quality in fiber coupling applications, or for use in endoscopy, bar code scanning and sensor applications. Ball Lenses feature short back focal lengths to minimize the distance needed from the Ball Lens to the optical fiber.
Features:
· Can be Used as Fiber Coupling Spheres or Collimating Lenses
· Ideal Pre-Forms for Aspheric Lenses
· Available in a Variety of Sizes
Common specification:
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Material
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Grade A optical glass or Fused Silica
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Tolerance(mm)
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±0.05
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Size ¢ (mm)
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1.0, 1.5, 2.0, 2.5, 3.0, 4.0, 5.0, 6.0, 8.0, 10.0
|
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Wavelength range(nm)
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350-2200nm
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Coating
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Uncoated
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Sphericity (μm):
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±0.625
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The ball lens is an
important optical element to improve the signal coupling between the
optical fiber, the transmitter and the detector. They are also used in
endoscopy, barcode scanning, spherical preforms for aspheric lenses, and
sensor applications. Optical glass ball lens and half ball lens can
provide spherical ball and hemispherical lenses in a range of
substrates for UV to NIR performance.
A spherical lens
(sometimes called a singlet) is an optical lens with a spherical surface
whose radius of curvature is uniform across the lens. They are
constructed so that the light entering them diverges or converges,
depending on the lens design. If you want to customize plano spherical lens or other spherical lens, please choose us with confidence.
