Premium H-K9L BK7 Optical Substrate
Consistent visible & near-infrared transmission, stable physical properties, cost-effective choice for industrial visible/NIR laser beam shaping applications.
Custom BK7 / K9 Axicon Lens, Positive Conical Prism for Laser Bessel Beam Forming
- Model
- FG-AXI-CN-SERIES
Item specifics
- Material
- N-BK7(K9), Optional UV Fused Silica
- Type
- Positive Axicon / Conical Optical Prism
- Apex Angle
- Customizable 130°~178°
- Surface Quality
- 40/20, 20/10 available
- Service
- Custom Diameter, AR Anti-Reflection Coating, OEM & ODM
- Application
- Bessel beam generation, laser beam shaping, optical trapping, laser processing, biomedi
Review
Description
Felix Glass Co., Limited produces customized K9 (BK7) axicon prisms, also known as conical axicon lenses. Made from high-quality H-K9L optical glass, these rotationally symmetric conical optics convert collimated laser beams into quasi non-diffracting Bessel beams or uniform annular ring beams. Our precision-polished axicon prisms support custom apex angles, diameters, edge profiles and targeted AR coatings, widely deployed in laser machining, optical trapping, OCT imaging, measurement and laboratory optical research systems. Standard spherical lenses cannot generate long-depth quasi non-diffracting Bessel beams. K9 axicon prism features a plano-conical surface profile to transform collimated incident laser into stable Bessel beam or far-field annular beam. Compared with other beam-shaping elements, axicon maintains extended depth of focus, uniform ring width and simple optical layout. High-precision cone angle control ensures stable beam profile for laser trepanning, particle manipulation and optical coherence tomography without complicated multi-lens assemblies. Custom base angles from 0.5° up to 40°, tight angular tolerance to guarantee repeatable Bessel beam and annular ring output performance. Diameter, thickness, edge chamfer, apex rounding, surface quality and wavelength-specific AR coatings configurable according to customer optical drawings. The standard substrate is H-K9L (BK7) optical glass, suitable for visible to near-infrared wavebands. For UV or high-power laser applications, we offer fused silica axicon as an upgrade alternative. We supply single-layer and multilayer anti-reflection coatings for common laser wavelengths to reduce surface reflection and improve system transmission efficiency. Laser wavelength, power level and required beam profile define cone angle, surface quality and coating configuration. Our customized K9 axicon prisms are widely adopted in industrial laser processing, biomedical optical systems, precision metrology and university laboratory optical research. Generate uniform annular laser beam for glass, ceramic micro-hole trepanning and precision laser material processing. Produce extended-depth quasi non-diffracting Bessel beam for optical coherence tomography and light-sheet microscopic imaging equipment. Quasi non-diffracting Bessel beam for microparticle manipulation, optical trapping and long-distance optical measurement experiments. Verify diameter, cone angle, apex rounding, thickness tolerance, surface quality and target laser wavelength coating requirements. Select qualified H-K9L blank, calculate machining allowance based on final axicon geometry specifications. Precision CNC curve grinding to form accurate plano-conical profile and control apex geometry. Optical surface polishing, followed by vacuum deposition of wavelength-matched anti-reflection coatings as required. Dimension, surface figure and transmittance testing; anti-scratch shockproof packaging for optical component transit. We support small-batch prototype trial production and large-volume serial manufacturing of customized K9 BK7 axicon prisms. To obtain accurate formal quotation, please provide engineering drawing, target quantity, cone angle specification, coating wavelength requirements, surface quality grade and optical system operating conditions. Prototype lead time and bulk delivery cycle depend on cone angle precision grade, special apex treatment and coating processes. Standard axicon specifications complete feasibility evaluation rapidly; ultra-high precision low-tolerance axicon projects will arrange dedicated optical engineering communication to optimize manufacturing process and control overall project cost. Application operates within visible and near-infrared spectrum, moderate laser power, project prioritizes balanced optical performance and competitive component cost. System uses UV laser, high-power pulsed laser, requires superior thermal shock resistance and wider ultraviolet transmission capability. Incident laser wavelength is fixed; anti-reflection coating reduces surface reflection, improves beam uniformity and prevents stray light interference inside optical setup. K9 BK7 axicon prism is a conical optical element that converts collimated laser into quasi non-diffracting Bessel beam or far-field annular ring beam, widely used for laser drilling, OCT imaging, optical tweezers and precision optical measurement. The plano flat surface should face the collimated incident laser source to generate standard Bessel beam and annular beam profile. Yes. We offer fully customized base angles ranging from 0.5° to 40°, with strict angular tolerance according to customer optical simulation requirements. We supply uncoated, visible broadband AR, VIS-NIR broadband AR and single laser wavelength targeted anti-reflection coatings. Yes, we support prototype sampling and small-batch trial production for laboratory research and new laser system verification projects. Share your laser system application background, K9 axicon prism engineering drawing, cone angle, coating specifications and target order quantity. Felix Glass optical engineering team will evaluate manufacturability, beam performance consistency and inspection requirements and issue official quotation for customized BK7 axicon lens.
Custom K9 BK7 optical axicon prism for laser beam shaping systems
K9 Axicon Prism Customized | BK7 Conical Axicon Lens for Bessel Beam Generation
Direct answer
Optical System Challenges Solved By Custom K9 Axicon Prism
Precision Controllable Cone Apex Angle
Full Drawing-Based Customization
Attention to specification
Material & Optical Technical Parameters For Engineering Review
Interest stage
Key Product Specifications For Custom K9 Axicon Prism
Product type
K9 Axicon Prism Customized | BK7 Conical Axicon Lens for Bessel Beam Generation
Model reference
FG-PRISM-AXI-K901
Material
H-K9L BK7 Optical Glass
Available Base Angle
0.5° ~ 40° Customizable, Angular Tolerance ±0.01°
Diameter Range
Φ10mm ~ Φ200mm Custom
Surface Quality
60/40, 40/20, 20/10 MIL STD scratch-dig
Surface Irregularity
λ/4, λ/8, λ/10 @633nm
Coating Selection
Uncoated / VIS AR / VIS-NIR AR / Single laser wavelength AR coating
Apex Feature
Apex rounding radius customizable
Edge Treatment
Plain edge, protective chamfer available
Clear Aperture
≥90% of effective diameter
MOQ
Low MOQ for prototype testing
Inspection Equipment
Interferometer, spectrophotometer, CMM precision dimension measurement
Application match
Main Application Fields Of K9 BK7 Axicon Prism
Laser Machining & Micro Drilling
Biomedical OCT & Optical Imaging
Optical Tweezers & Precision Metrology
Desire stage
Felix Glass RFQ & Custom Axicon Prism Production Workflow
Optical Drawing & Parameter Review
K9 Glass Blank Cutting
CNC Conical Surface Grinding
Ultra-Precision Polishing & Vacuum Coating
Full Optical Inspection & Secure Packing
Original capability retained
From Prototype Sampling To Mass Custom K9 Axicon Prism Orders
Decision support
Select K9 BK7 vs Fused Silica Axicon Prism For Your Laser System
Choose K9 BK7 Axicon When
Upgrade To Fused Silica Axicon When
Confirm AR Coating Requirements When
Related BK7 optical prism & laser beam shaping components
Internal Links For Optical Product Cluster Comparison
Buyer FAQ
Frequently Asked Questions About Custom K9 BK7 Axicon Prism
What is a K9 axicon prism used for?
Which side of axicon faces the incoming laser beam?
Can we customize the cone base angle of axicon prism?
What coating options are available for K9 axicon prism?
Do you accept prototype small batch orders?
Action stage
Submit Your Axicon Drawing For Optical Engineering Evaluation & Quotation
