Sjllaser Technology Limited has developed a new product line!
Diameter:0.4mm
Diameter Tolerance: ±0.001mm
Roundness less than 0.4um
Material: Optical Glass H-K9L, N-BK7, K-VC89, K-VC80, L-LAH84, LASFH17
Sjllaser Technology Limited manufacture micro ball lens ranges in diameter from 0.3mm to 3mm. Micro ball lens is used to improve signal coupling between Emitters, Fibres, Transmitters, Receivers and Detectors depending on the application. 1.Diameter Tolerance 0.001mm 2.Roundness less than 0.4um 3.Surface Quality is Ra10nm.
Low Tg Ball Lens has the characteristics of low melting and softening temperature, being easily shaped and special optical-mechanical properties, easy to be molded by secondary pressing, suitable for precision pressing of aspherical lenses, which helps to reduce the production cost of batch lenses. Low Tg Ball Lens / Aspherical Lenses are applied in precision molding, such as digital cameras, video cameras, mobile phones, etc.
Ball lenses are commonly used for laser collimating and focusing, laser-to-fiber coupling, fiber-to-fiber coupling, Solar-photovoltaic and fiber-to-detector coupling.
Worldhawk can provide spherical ball lenses and half ball lenses in a range of substrates for performance in the ultraviolet to the NIR. Such as including H-K9L(N-BK7), Sapphire, CaF2, BaF2, ZnSe or custom materials upon request.
Ball lenses feature short back focal lengths to minimize the distance needed from the ball Lens to the optical fiber. Ball lenses are commonly used to improve signal quality in fiber coupling applications, or for use in endoscopy or bar code scanning applications.
Half-Ball (hemispherical) lenses are ideal for applications such as fiber communication,endoscopy, microscopy, optical pick-up devices,and laser measurement systems.
Optical sapphire ball lens and half ball lens are both made from Al203,
it's ideal for demanding applications (such as laser systems).
They have a lot of advantages:
1/ Stronger than standard optical glass,they have extreme surface hardness, high thermal conductivity, high dielectric constant and
resistance to common chemical acids and alkalis.
2/ Transmits Wavelengths Ranging From UV to Mid-Infrared (0.2 - 5.5µm.)
Materials characteristic
Refractive index (nd)
1.768
Coefficient of dispersion (Vd)
72.2
Density (g/cm3)
3.97
TCE (μm/m)
5.3
Soften Temperature ()
2000
Knoop hardness (kg/mm2)
2200
About sapphire materials for our ball lenses
We only choose the best sapphire material to process the ball lens and hemispherical half ball lenses for our customers. As you know, sapphire has higher performance and higher purity near the center in the process of growing.
So only the ball lens made from this part of the material has better performance.
Spherical Lens Half Ball Lens
PARAMETER:
ODM Half Ball Lens are completely spherical lenses most commonly used to couple light in and out of fibres. Half-ball lenses are hemispheres.
BRD Optical supplies bespoke ball and half-ball lenses to our customers specifications. Ball lenses can be manufactured in quartz to have excellent UV and IR transmission between 185nm to 2000+nm, while sapphire lenses have a higher refractive index allowing a very short fall back length to better facilitate fibre coupling. Custom ball lenses are available in a range of alternative materials such as optical grade glass or even ceramics or IR crystal. Our half ball lenses offer uniform dispersion of light and typically used in LED displays and LED traffic lights.
