Description
Plano concave lens substrates can be precision manufactured from BOROFLOAT® optical glass and converted into reflective plano concave mirrors by applying a protective gold coating to the concave surface. This optical configuration provides a controlled reflective surface for laser beam management in particle counting and other optical detection systems.
The substrate is precision ground and polished to achieve controlled dimensional accuracy, surface quality, and optical flatness. The concave surface is then coated with a metallic protective gold coating according to the required optical and environmental conditions. This combination of precision substrate processing and reflective coating helps provide stable optical performance in demanding instrument applications.
Key Features of the Plano Concave Lens Substrate
The plano concave lens substrate is precision processed before the reflective coating is applied.
- Plano-concave optical geometry: One surface is flat while the opposite surface has a precisely controlled concave curvature.
- BOROFLOAT® substrate: Manufactured from BOROFLOAT® optical glass for applications requiring stable optical and thermal characteristics.
- Protective gold coating: The concave surface is coated with a metallic protective gold layer for reflective optical applications.
- Precision manufacturing: Controlled grinding and polishing processes help maintain dimensional and surface accuracy.
- Controlled surface quality: Available with a surface quality of 60/40 or better.
- High clear aperture: A minimum clear aperture of 85% is specified for effective use of the optical surface.
- Application-specific customization: Dimensions, tolerances, surface specifications, and coating requirements can be customized according to the optical system.
Optical Performance
The plano concave geometry provides a curved reflective surface for controlling the direction and behavior of laser light within an optical system. When integrated into a laser particle counter, the mirror can be positioned as part of the instrument’s optical path to support the required beam geometry and detection configuration.
The concave surface is precision polished before the gold coating is applied. This helps maintain the designed optical geometry and provides a consistent reflective interface. Controlled dimensional tolerance and surface flatness are important for maintaining repeatable positioning and optical alignment during instrument assembly.
The specified surface flatness is 1 (0.5) Fringe at 632.8 nm, while the surface quality is available at 60/40 or better. These specifications support applications where stable optical performance and repeatable manufacturing quality are required.
Because the final optical performance depends on the complete optical design, including wavelength, angle of incidence, coating requirements, curvature, and system configuration, Jiujon Optics can manufacture the mirror according to customer-supplied drawings or optical specifications.
Applications in Laser Particle Counters
This plano concave mirror for laser particle counter applications can be used in optical systems designed for precise particle detection and measurement.
Typical applications include:
- Laser particle counters used in pharmaceutical manufacturing
- Particle monitoring equipment for food and electronics production
- Environmental particle monitoring systems
- Air quality analysis instruments
- Laboratory particle detection equipment
- Optical measurement and inspection systems requiring controlled laser beam reflection
In a particle counter, the optical components must work together with the laser source, detector, mechanical structure, and signal-processing system. A precision-manufactured reflective component can therefore contribute to consistent optical alignment and repeatable instrument performance.
Specifications
| Parameter | Specification |
|---|---|
| Substrate | BOROFLOAT® |
| Dimensional Tolerance | ±0.1 mm |
| Thickness Tolerance | ±0.1 mm |
| Surface Flatness | 1 (0.5) Fringe @ 632.8 nm |
| Surface Quality | 60/40 or better |
| Edges | Ground, 0.3 mm max. full-width bevel |
| Back Surface | Ground |
| Clear Aperture | 85% |
| Coating | Metallic protective gold coating |
| Coated Surface | Concave surface |
Specifications can be adjusted according to the optical design and application requirements. Customers can provide drawings, sample parts, optical parameters, or coating requirements for evaluation.
Custom Plano Concave Mirror Manufacturing
We can manufacture the plano concave lens substrate according to customer-supplied drawings and optical specifications.
Jiujon Optics provides customized manufacturing of precision optical components for OEM and industrial applications. The manufacturing process can include optical glass cutting, grinding, polishing, cleaning, coating, inspection, and final quality control.
For a custom plano concave lens substrate or finished plano concave mirror, key parameters can be specified according to the requirements of the optical system. These may include substrate material, diameter or external dimensions, center or edge thickness, radius of curvature, dimensional tolerances, surface flatness, surface quality, clear aperture, coating type, and coating area.
The concave surface can be prepared for protective gold coating based on the required reflective performance and operating environment. Our production and inspection processes are designed to maintain consistency between production batches, making the component suitable for integration into OEM laser and optical instruments.
Why Choose Jiujon Optics
Jiujon Optics focuses on customized optical components for industrial and precision instrument applications. Our manufacturing capabilities cover optical windows, filters, mirrors, prisms, lenses, reticles, and other precision optical elements.
For laser particle counter applications, we can work from customer drawings, samples, or technical specifications to develop a suitable optical component. We can also support customized substrate materials, dimensions, surface specifications, and optical coatings according to project requirements.
If you are looking for a plano concave mirror for a laser particle counter, please send us your drawing or optical requirements. Our engineering team can review the specifications and provide a customized solution for your application.
