The industry standard and first choice microscope for high schools. Robust and easy to operate the M100FL now comes with LED illumination and a bui...

Product details A lightweight Fresnel lens magnifier with the most advanced lighting system ever seen on a magnifier which is important for those w...

Ball lenses are a great choice when you want fiber to fiber coupling; coupling light from one fiber optic to another fiber optic that has a very similar numerical aperture. Use two identical ball lenses, and place them at BFL (back focal length) from the fibers.

Product details Digital microscopes provide an exciting new dimension to microscopy combining the power of an optical microscope with that of a com...

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As explained here the static dielectric function is integrated in the BS kernel and all its components are summed up. So the direction of the long wavelength ...

The numerical aperture of a lens depends on the size of the lens (D), the refractive index (n), and the diameter of the source.

Start by identifying the specific activities that vision loss is impacting. Many people begin with reading because it's a common challenge. Ask yourself: What do you want to read? (Books, newspapers, labels, etc.). When do you usually read? (Daytime, evening, on the go). Where do you prefer to read? (At home, in public places, at work)

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Dec 16, 2016 — Marking with galvo scanners can be optimized in relation to the machining time by choosing the proper scan velocity for a given marking distance ...

Optical Prisms are used to disperse, bend and deviate a beam of light at a specific angle, by reflecting it off one or more surfaces.

Using an ND filter calculator simplifies the process of determining the correct filter strength needed to achieve the desired effect. It takes into account the ...

Miniature Optics: In miniature optics, ball lenses are used in devices such as endoscopes, microscopes, and barcode scanners. Their small size and high precision make them ideal for applications where space is limited, and high optical performance is required.

CrystalBall

At Avantier we have the ability to design and manufacture custom ball lenses that fit our client’s exact needs. Whether you are working in fiber optics or hoping to design a micro-optical device such as an endoscope that relies on very tiny components, we’re ready to come alongside you as needed. Please contact us today to schedule an initial consultation or to discuss our manufacturing potential.

Product details A lightweight dome magnifier illuminated by lifetime lasting LED diodes. The lens size is 62mm giving a large viewing area with a p...

A rough surface is more likely to wear and has a larger amount of friction. The high friction coefficient means that there is more force needed to slide, than ...

The effective focal length is simply the distance between the beam focus and a plane through the center of the lens. It can  be calculated from the  diameter and the index of refraction using this simple equation:

A fifth important parameter related to the environment rather than the ball itself is the diameter of the input source, (d).  It is important to note that every ball lens will exhibit spherical aberrations, and these may become significant when working with small ball lenses where the diameter of the incident beam is scarcely smaller than the diameter of the ball itself. Because of this, you should not expect to attain your theoretical minimum spot size of focus. If these aberrations are not acceptable aspheric lenses can be used instead of optical glass balls.

The back focal length, on the other hand, is the distance from the focal point to the lens surface. This is always smaller than the effective focal length by the radius of the ball.

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Opticallenses

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Convex lens

There are four important parameters to keep in mind when working with ball lenses. These include the diameter of the ball lens (D), the effective focal length (EFL), the back focal length (BFL), and the index of refraction (n).

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Lens

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Product description The Dart LED Illuminated Hand Magnifiers from Optima are one of our best selling Magnifiers... with good reason! The Dart range...

This IEEE 1394 FireWire cable consists of a 4 pin male connector on one end and a 6 pin male on the other. It is typically used to connect camcorder to a ...

Ball lenses are also a good option for laser to fiber coupling. Here you’ll want to choose an appropriate size ball after looking at the cross-sectional diameter of the laser beam and calculating the NA of the ball lens in the system. This NA must be less than the NA of the fiber optic, or light will not be fully coupled.

Ball lenses are perfectly round optical spheres that consist of just one transparent substrate such as UV grade fused silica, BK7, or sapphire. Shaped like a tiny, precisely made marble, they are equivalent to two Plano-convex lenses separated by a parallel plane. Custom ball lenses are typically quite small, with a diameter of a few mm or less than 1 mm, and are used as beam collimators for optical fibers, for fiber-to-fiber coupling, to improve signal coupling between fibers, emitters, and detectors, and in the miniature optics used for spectroscopy and bar code scanning. They can also be used as objective lenses for specialty microscopes.

May 4, 2015 — With M-squared values direct from the laser of 12 and 25, it is quite difficult to keep the beam collimated for a long enough distance to steer ...

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Product description The Dart LED Illuminated Hand Magnifiers from Optima are one of our best selling Magnifiers... with good reason! The Dart range...

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Fiber Optics: Ball lenses are widely used in fiber optic systems to improve the efficiency of light transmission and signal coupling. They serve as beam collimators, focusing the light from the fiber to a parallel beam, which is crucial for long-distance signal transmission and reducing signal loss.

Specialty Microscopes: Ball lenses serve as objective lenses in specialty microscopes. Their ability to focus light precisely makes them suitable for high-resolution imaging applications.