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The ball lens is used to improve the signal coupling between the optical fiber, transmitter and detector, and improve the signal quality. It can also be applied to pre-processing materials such as endoscopes, bar code scanning, aspherical lenses, and sensors. The short focal length of the ball lens minimizes the distance required from the ball lens to the fiber. United Optical Technology provides uncoated spherical lenses with K9 optical glass and UV fused silica as the base. Fused silica for UV applications.
Material: Precision Annealed K9 Optical Glass / UV Fused Silica
Design wavelength: @587.6nm,n=1.45848
Diameter error: +/-0.005mm
Ellipsoid: ±0.003mm
Irregular face: Wavelength / 4@632.8nm
Surface finish: 3~4 level
Coating: None
EFL=nD/4(n-1) BFL=EFL-D/2
NA (numerical aperture) = 2d(n-1)/Nd
D : Ball lens diameter
d: incident spot diameter
EFL: Effective Focal Length of Ball Lens
BFL: Ball Lens Back Focus
n: ball lens material refractive index



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Golden Way Scientific Co., Ltd. (registered in 1998) is a private company that focuses on the development of high-tech optical products and combines production and trade.


Since its establishment, the company has been devoted to the sales of optical precision instruments, as well as the design, development and processing of optical components, mechanical parts and optical lenses.


At present, the company has three optical components and mechanical parts manufacturing plants, an optical coating center, an optical inspection center, and an optical assembly room, located in Kunming, Jinzhou, Changchun, and Beijing.

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