Custom N-Bk7 Optical Bi-Concave Lens For Laser Beam Expansion
Material: - N-Bk7 Glass: This lens is crafted from N-Bk7 glass, a
high-quality optical glass known for its excellent transparency,
low absorption, and good chemical resistance. N-Bk7 glass is a type
of borosilicate glass that offers superior optical performance in
the visible and near-infrared spectrum1.
Properties: - High Transparency: The lens exhibits high transparency, allowing
for efficient transmission of light with minimal loss.
- Low Absorption: N-Bk7 glass has low absorption in the visible and
near-infrared range, ensuring that the lens does not heat up
significantly when used with high-power lasers.
- Good Chemical Resistance: The lens is resistant to a wide range
of chemicals, making it suitable for use in harsh environments.
- Excellent Surface Finish: The lens has a smooth, polished surface
that minimizes scattering and reflection, ensuring optimal light
transmission.
Functions: - Laser Beam Expansion: The bi-concave design of the lens allows it
to expand a laser beam uniformly, increasing the beam's diameter
while maintaining its coherence and intensity.
- Collimation: The lens can also be used to collimate a laser beam,
converting a diverging beam into a parallel beam, making it
suitable for various optical applications.
- Focal Length Adjustment: By adjusting the distance between the
lens and the laser source, the focal length of the beam can be
fine-tuned to meet specific requirements.
Applications: - Laser Systems: The lens is ideal for use in laser systems, such
as laser cutters, engravers, and markers, where precise beam
control and expansion are crucial.
- Optical Instrumentation: It can be used in optical instruments,
such as spectrometers and interferometers, for precise measurement
and alignment.
- Medical Devices: The lens is suitable for use in medical devices,
such as laser treatment systems, where precise beam control is
essential for safe and effective treatment.
- Research & Development: The lens is also valuable in research
and development applications, where it can be used to study the
properties and behavior of laser beams in various conditions.
In summary, the N-Bk7 Optical Bi-Concave Lens is a versatile and
essential component for laser beam expansion and collimation. Its
high-quality material, excellent properties, and precise functions
make it an ideal choice for a wide range of applications in laser
systems, optical instrumentation, medical devices, and research
& development.
| Item | Optical glass bi concave lens | | Material | Optical glass, Qurartz glass, Pyrex, borosilicate glass, Float
glass | | Diameter Tolerance | +0/-0.15 mm | | Thickness Tolerance | +/-0.15mm | | Processed | by grinding, polishing | | Surface Quality | 80/50,60/40,40/20 | | Material Quality | no scratches and air bubble | | Transmission | above 90% | | Chamfer | 0.1-0.5 mm x 45° | | Surface Coating | Available |
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