Description
Laser Grade Plano-Convex Lenses
Laser grade plano-convex lenses are precision optical components designed for laser beam focusing, collimation, and beam shaping. With one flat surface and one convex surface, these positive lenses provide controlled beam convergence and are widely used in laser systems, optical measurement equipment, sensing instruments, and industrial laser applications.
Jiujon Optics manufactures laser grade plano-convex lenses using optical materials such as UV fused silica and BK7, with precision surface processing and wavelength-specific anti-reflective coatings. The lenses can be manufactured according to different focal length, diameter, thickness, coating, and dimensional requirements for OEM optical systems and custom laser applications.
Features of Laser Grade Plano-Convex Lenses
- Precision optical design for laser beam focusing and collimation
- UV fused silica and other optical glass substrates available
- Low absorption materials suitable for demanding laser applications
- Precision surface processing to reduce scattering and optical distortion
- Anti-reflective coatings available for specific laser wavelengths
- High surface quality and controlled dimensional tolerances
- Suitable for continuous-wave and pulsed laser systems
- Custom optical specifications available for OEM applications
Optical Performance
Laser grade plano-convex lenses are designed to provide stable and repeatable optical performance in laser systems. The convex surface provides positive optical power, allowing the lens to converge a collimated laser beam toward a focal point. Depending on the optical configuration, the same type of lens can also be used to collimate a divergent beam.
For laser focusing applications, focal length is an important parameter because it determines the relationship between the incoming beam and the resulting focused spot. Lens diameter and clear aperture must also be selected according to the beam size and required numerical aperture.
The surface quality and flatness of the lens can affect beam quality, scattering, and focusing performance. For demanding laser applications, precision polishing and appropriate anti-reflective coatings help improve transmission and reduce unwanted reflections.
When focusing a collimated laser beam with a plano-convex lens, the curved surface is generally oriented toward the incoming collimated beam. This configuration can help reduce spherical aberration compared with using the lens in the opposite orientation.
Specifications
| Specification | Value |
|---|---|
| Product Type | Laser Grade Plano-Convex Lens |
| Substrate | UV Fused Silica |
| Dimensional Tolerance | -0.1 mm |
| Thickness Tolerance | ±0.05 mm |
| Surface Flatness | 1 (0.5) @ 632.8 nm or better |
| Surface Quality | 40/20 or better |
| Edges | Ground, 0.25 mm max. full width bevel |
| Clear Aperture | 90% |
| Centering | <1′ |
| Coating | Rabs <0.25% @ Design Wavelength |
| Damage Threshold | 532 nm: 10 J/cm², 10 ns pulse |
| Damage Threshold | 1064 nm: 10 J/cm², 10 ns pulse |
Custom specifications can be discussed according to the required wavelength, focal length, diameter, center thickness, coating band, surface quality, and laser power.
Applications of Laser Grade Plano-Convex Lenses
Laser grade plano-convex lenses are suitable for a wide range of optical and photonic systems, including:
- Laser beam focusing systems
- Laser beam collimation
- Laser cutting and welding equipment
- Industrial laser processing
- Laser measurement and sensing systems
- Optical inspection equipment
- Medical and analytical instruments
- Telecom and light delivery systems
- Laser alignment and positioning systems
- OEM laser optical assemblies
For laser processing equipment, the lens must be selected according to the operating wavelength, beam diameter, focal length, power level, and required spot size. For high-power or pulsed laser applications, the substrate, coating, absorption, surface quality, and laser-induced damage threshold should be considered together.
Why Choose Jiujon Optics
Jiujon Optics provides precision optical manufacturing for custom lenses and other laser optical components. Our production capabilities include optical grinding, polishing, precision surface processing, cleaning, inspection, and optical coating.
Laser grade plano-convex lenses can be manufactured with controlled dimensional tolerances, surface quality, centering, clear aperture, and wavelength-specific coatings. Inspection equipment such as spectrophotometers and interferometers is used to evaluate optical performance and coating characteristics.
Our engineering team can work with customer drawings, optical specifications, samples, or application requirements to develop suitable plano-convex lenses for OEM and industrial optical systems.
How to Select a Plano-Convex Lens for Laser Applications
When selecting a laser grade plano-convex lens, several parameters should be considered. The first is the operating wavelength, which determines the appropriate optical substrate and anti-reflective coating.
The second is focal length. A shorter focal length generally provides stronger focusing power, while a longer focal length produces a larger focal distance and can be suitable for different beam delivery configurations.
The third is clear aperture and lens diameter. The clear aperture should be large enough to accommodate the laser beam without excessive clipping. Surface quality, surface flatness, centering, coating performance, and laser damage threshold should also match the requirements of the optical system.
For applications requiring a specific focal length, wavelength, coating, or mechanical dimension, custom plano-convex lenses can be produced according to customer drawings and technical specifications.
Related Optical Components
Jiujon Optics also manufactures a range of precision optical components for laser and photonic systems, including optical lenses, optical windows, optical filters, optical mirrors, and optical prisms.
For more information about laser optics and the optical principles of focusing and collimation, see the technical reference from RP Photonics.
If you are looking for custom laser grade plano-convex lenses, contact Jiujon Optics with your required wavelength, focal length, lens diameter, substrate, coating, and quantity. Our team can evaluate your optical requirements and provide a suitable manufacturing solution.
