BK7 Glass Ball Lenses
from Hangzhou Shalom Electro-optics Technology Co., Ltd.
bull; Working Wavelength Range: 350nm to 2200nm. • Refractive Index: 1.51680 @ 587.5618 nm. • Thermal Expansion: 7.1 x 10-6/K. • Excellent Pre-forms of Aspheric Lenses. • Standard Diameters 1-10mm, Custom Diameters 0.3-100mm. Ball Lenses are a special form of biconvex lenses... [See More]
- Materials: BK7 Glass
- Diameter / Length: 1
- Lens Application: Visible
from Dayoptics, Inc.
Ball lenses are near perfect polished spheres of glass or other transparent materials used to focus light from laser sources into fibers and to couple light from fiber to fiber by matching the N.A.(numerical aperture) of the balls to the fibers. Balls can be machined into drums for higher fiber... [See More]
- Materials: BK7 Glass
- Surface Quality: 40-20 Scratch / Dig
- Diameter / Length: 1 to 5
- Surface Flatness: lambda/2.5
from Knight Optical (UK) Ltd
Ball lenses are, as the name suggests, completely spherical lenses most commonly used to couple light in and out of fibres. Knight Optical supplies a range of stock ball lenses as well as bespoke designs to your own specifications. Our stock ball lenses offered in quartz have excellent UV and IR... [See More]
- Materials: BK7 Glass
- Diameter / Length: 0.0025
- Focal Length: 1.1
- Surface Quality: 40-20 Scratch / Dig
from Hangzhou Shalom Electro-optics Technology Co., Ltd.
bull; Working Wavelength Range: 350nm to 2200nm. • Refractive Index: 1.51680 @ 587.5618 nm. • Thermal Expansion: 7.1 x 10-6/K. • Excellent Pre-forms of Aspheric Lenses. • Standard Diameters 1-10mm, Custom Diameters 0.3-100mm. Ball Lenses are a special form of biconvex lenses... [See More]
- Materials: BK7 Glass
- Diameter / Length: 1
- Lens Application: Visible
from Swiss Jewel Company
BK-7 Hemisphere Lenses are ideal for mounting in your instrument and ease of handling. Typical Applications: Fiber Optics, LEDs [See More]
- Materials: BK7 Glass
- Center Thickness: 0.2489 to 0.7493
- Lens Application: Visible
- Diameter / Length: 1.5 to 5
from Ross Optical Industries
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... [See More]
- Materials: BK7 Glass
- Diameter / Length: 0.3000
- Lens Application: Infrared (optional feature); Visible (optional feature); Ultraviolet (optional feature)
- Lens Features: Antireflection Coating (optional feature); Laser / Heat Resistant (optional feature)
from Artifex Engineering
Most useful when coating is not an issue. Very tight diameter tolerance for accurate fibre coupling. [See More]
- Materials: BK7 Glass
- Surface Quality: 40-20 Scratch / Dig
- Diameter / Length: 10