Optical filters
- Home
- Optical filters
Optical Filter Manufacturing and Customization
Optical filters are precision components engineered to selectively transmit, reflect, or absorb specific wavelengths of light across the electromagnetic spectrum. At Star Optics, we specialize in manufacturing high-performance optical filters utilizing advanced thin-film coating technologies, including ion-beam sputtering (IBS), plasma-assisted deposition, and magnetron sputtering processes.
Our manufacturing capabilities cover the full spectral range from deep UV (200nm) to far infrared (15μm), with precise control over transmission characteristics, edge steepness, and blocking depth. Each filter undergoes rigorous spectrophotometric testing using calibrated instruments to ensure compliance with customer specifications. Whether you require standard catalog products or fully customized solutions, our engineering team provides comprehensive support from optical design through volume production.
Types of Optical Filters We Provide
We deliver off-the-shelf items and fully customized filters tailored in wavelength, bandwidth, OD blocking, substrate, and coating architecture — from prototype runs to volume production.
Why Choose Star Optics
Engineering-First Approach
We evaluate your light source, detector, and environmental constraints before any design work begins, ensuring the filter is fully compatible with your optical system and reducing unnecessary redesign cycles.
Rapid Prototyping
With stocked substrates and dedicated coating capacity for pilot runs, we can deliver custom samples quickly—allowing your R&D team to test, refine, and iterate without delays.
Reliable Quality Assurance
Each filter undergoes comprehensive spectral measurement and essential environmental testing, accompanied by full data reports to guarantee performance consistency across every batch.
Cost and Supply Stability
Optimized coating processes and efficient chamber utilization help reduce production costs, while our secure material supply chain supports dependable delivery from prototypes to full-scale manufacturing.
How to Order Custom Optical Filters
Submit Specifications
Send us your drawings, spectral requirements (CWL, FWHM, OD), and quantity needed.
DFM & Modeling
We evaluate feasibility, run thin-film simulations, and provide a predicted spectral curve along with noted risks.
Quote & Approval
A detailed quote is issued, covering pricing, lead time, and any engineering charges.
Sample/Prototype
For new designs, we produce a pilot run. These samples are tested and shipped to you for system validation.
Mass Production
After prototype approval, we proceed with full-scale manufacturing under controlled process parameters.
Quality Assurance
Each batch undergoes visual inspection and spectral measurement to ensure consistency.
Delivery
Filters are cleaned, vacuum-sealed, and shipped worldwide with full documentation.
We have streamlined our ordering process to ensure clarity and accuracy from start to finish.
Supported Materials, Sizes, and Coating Options
Substrate Materials
BK7, H-K9L, B270, BOROFLOAT 33.
UV-grade fused silica (Corning 7980, JGS1/JGS2).
Germanium (Ge), Silicon (Si), Zinc Selenide (ZnSe), Sapphire (Al2O3), Calcium Fluoride (CaF2), Magnesium Fluoride (MgF2).
Shapes & Dimensions
Up to 200 mm × 200 mm.
Up to 200 mm × 200 mm.
Down to 0.10 mm thickness for lightweight or compact optical assemblies.
Edge ±0.05 mm, thickness ±0.02 mm, parallelism <3 arcmin (optional tighter specs).
Coating Options
High transmission at CWL, deep blocking up to OD6.
Longpass, shortpass, beam-splitter designs.
Hydrophobic/oleophobic, DLC protective layers.
Performance Parameters
±1–2 nm (tighter tolerances on request).
5 nm to 80 nm depending on type.
OD2 to OD6 blocking; extended blocking bands available.
AOI design from 0° to 45°.
20-10 to 60-40 (per MIL-PRF-13830B).