A bessel lens consists of axicon lenses and two sets of focusing lenses. The collimated light passes through the axicon lens to form the bessel beam.
Category: Application Notes
Variable Beam Splitter
Precision laser applications require fine power control. A variable beam splitter with a large dynamic range and precision control is designed to fulfill this purpose.
UV Lens Detectors
When high-voltage equipment discharges electricity, arc discharge may occur depending on the electric field strength, during which electrons in the air continuously gain & release energy, emitting UV rays.
SWIR Lens
Short-wave infrared (SWIR) light is a second of the electromagnetic spectrum typically in the 0.9μm to 2.5μm range and is therefore invisible to the human eye.
Super-Polished Optics
One of the technology engines in high value-add photonics service is in the area of high-power lasers and applications, ranging from scientific to precision material processing.
Precision Glass Molding
Chalcogenide material is gradually taking over Germanium in the broad IR regime. It performs especially well within the 8 to 12μm range due to its lowest absorption and dispersion in LWIR.
Micro-Lens Array
Micro-lenses are sub-micrometer lenses (often up to 10 microns), typically made with fused silica due to its excellent transmission characteristics of UV to IR rays.
Mid-IR Spectrometer
Mid-IR regime is proven to have rich absorption “finger-prints” of materials, demonstrated by benchtop measurement tools, such as Fourier Transform Infrared Spectrometer.
Machine Vision for Translucent Materials
Image processing capability integrated together, with optical/mechanical/electronics capabilities, can deliver system-level solutions for the manufacturing industry.
Mid-IR Borescope
Mid-IR borescope is an imaging instrument with customizable requirements for clear inspection of hard-to-access areas, such as boiler tubes, furnace walls, etc.