Optical Transmission
Useful transmission from ultraviolet through infrared wavelengths supports a range of sensing and fiber-optic applications.
Sapphire Half Ball Lens for Optical Fiber Coupling Device
- Model
- FG-WIN-FURN-010
Item specifics
- Base Material
- Optical Fiber Coupling, Precision Instrument, Laser Collimation
- Surface Process
- Double-Sided Optical Polishing, Optional AR Coating
- Custom Service
- OEM ODM Custom Size, Diameter 2–50mm Tolerance Control
- Optical Feature
- High UV-Vis-NIR Transmittance, Low Light Loss
Review
Description
Sapphire optical component for fiber coupling
Sapphire Half Ball Lens for Stable Fiber Coupling
A sapphire half ball lens focuses or collimates light between an optical fiber and a detector, emitter, or other optical element. Its hemispherical geometry supports compact coupling assemblies, while sapphire combines broad optical transmission with low thermal expansion and high surface hardness.
Interest
Why Sapphire Fits Demanding Optical Assemblies
Material selection affects alignment stability, service life, and optical performance. Sapphire is used where conventional optical glass may face abrasion, temperature change, or repeated handling.
Mohs 9 Hardness
A hard optical surface helps resist scratching during assembly, cleaning, and operation.
Thermal Stability
Low thermal expansion helps reduce dimensional drift when operating temperatures change.
How the Half Ball Lens Manages Light
The curved surface refracts incoming or outgoing light so it can be focused or collimated over a short optical path. In a fiber coupling device, the lens can help match the fiber output to a photoelectric sensor or another optical component.
- Compact geometry for space-limited assemblies
- Controlled curvature for repeatable alignment
- Optional AR coating for the specified wavelength band
Custom Dimensions and Optical Finishing
The existing product range supports diameters from 2 mm to 50 mm. Final geometry, tolerances, surface quality, and coating should be defined against the optical design rather than selected from a generic tolerance set.
| Material | Optical-grade sapphire |
|---|---|
| Geometry | Half ball / hemispherical lens |
| Diameter range | 2 mm–50 mm custom available |
| Surface | Optical polishing; requirements confirmed per drawing |
| Coating | Optional single- or double-side AR coating |
| Documentation | Dimensional and spectral inspection reports available |
Desire
Applications in Fiber-Optic and Precision Systems
The lens can be integrated into fiber coupling modules, optical communication equipment, precision detection instruments, and compact optoelectronic sensing devices.
Fiber Coupling Modules
Focus or collimate light between the fiber end and the next optical element.
Optical Communication
Support compact transmitter, receiver, and signal-routing assemblies.
Precision Detection
Use stable geometry in instruments exposed to temperature change or repeated operation.
Optoelectronic Sensors
Fit small sensing packages where durability and optical access are both required.
From Drawing Review to Finished Lens
- 1
Review
Confirm diameter, height, curvature, clear aperture, wavelength, and assembly conditions.
- 2
Machine and Polish
CNC spherical machining and optical polishing establish the required geometry and surface.
- 3
Coat if Required
Apply the specified AR coating for the operating wavelength and surface selection.
- 4
Inspect
Check dimensions and optical requirements before shipment.
Quality Information for Engineering Review
Felix Glass Co., Limited can support dimensional and spectral inspection documentation for custom projects. Sharing the application environment early helps align the inspection plan with the conditions that matter to the assembly.
Process Capability
In-house CNC spherical machining and optical polishing support geometry control.
Inspection Records
Dimensional and spectral reports can be discussed for the order.
Engineering Communication
Review requirements with the team before production planning begins.
Parameters to Include With an RFQ
For a useful manufacturability review, provide the lens drawing and the operating requirements that influence optical and mechanical performance.
- Diameter, center height, curvature, and dimensional tolerances
- Surface quality, flatness, and clear aperture requirements
- Operating wavelength and AR coating target
- Quantity, assembly method, and service environment
Sapphire Half Ball Lens Questions
What diameter range is available?
The existing product information states that custom diameters from 2 mm to 50 mm are available. Feasibility depends on the complete geometry and tolerances.
Can the lens receive an AR coating?
Yes. Single- or double-side AR coating can be discussed for the specified fiber-optic wavelength band.
Why use sapphire instead of optical glass?
Sapphire offers high surface hardness and low thermal expansion, which can help in assemblies exposed to abrasion or temperature change.
What information is needed for quotation?
Provide a drawing, material and coating requirements, operating wavelength, quantity, and any inspection or documentation needs.
Continue Your Sapphire Optics Review
Use these verified site resources to compare options, understand the supplier, and prepare the next engineering discussion.
Action
Request a Technical Review for Your Half Ball Lens
Send the drawing, wavelength, coating requirement, quantity, and operating conditions. Felix Glass Co., Limited will review the request against its sapphire machining and optical polishing capabilities.
