Optical Coating Services

Optical Coating Services

Precision Thin-Film Coatings for High-Performance Optical Applications

 

At Yighen Ultra Precision, we offer high-performance optical coating services for both plastic and glass optics, tailored to meet the demanding needs of imaging, sensing, laser, AR/VR, medical, and infrared applications. From single-layer anti-reflective (AR) coatings to complex multi-layer dielectric stacks, our coatings are designed for maximum optical efficiency, durability, and wavelength control—from UV to SWIR.

Whether you need rapid prototyping or large-scale production, our in-house optical coating team provides custom solutions backed by advanced metrology and rigorous quality control.

 

Optical Coating Capabilities

✔ AR Coatings (Anti-Reflective Coating)

Reduce surface reflection and improve transmittance.

• Standard broadband AR (400–700nm, 800–1200nm, etc.)

• Custom narrowband AR for laser or sensing applications

• Available for glass and plastic lenses

✔ High-Reflective (HR) Coatings

Maximize reflection at specific angles and wavelengths.

• For mirrors, beam steering, and laser applications

• Dielectric and metallic (Al, Ag, Au) coatings

• Custom angle of incidence and polarization options

✔ Beamsplitter Coatings

For precise beam division in visible, IR, or UV ranges.

• Plate and cube beamsplitter coatings

• 50/50, 70/30, or custom splitting ratios

• Polarizing and non-polarizing versions

✔ Filter Coatings

Spectral filtering for imaging, fluorescence, and laser systems.

• Bandpass filters (e.g. 550nm ±20nm)

• Longpass & shortpass filters

• Custom filter design based on transmission curve

✔ Laser Coatings

Optimized for high-energy laser durability and low absorption.

• HR and AR for 532nm, 1064nm, 1550nm, etc.

• Low scatter, laser damage threshold tested

• High-power LIDT coatings for YAG, fiber, diode lasers

✔ IR and SWIR Coatings

Advanced coatings for SWIR, MWIR, and LWIR optics.

• Compatible with materials such as Ge, ZnSe, CaF₂, MgF₂

• Broadband AR coatings for 1.0–2.5μm and 3–5μm windows

• Durable coatings for harsh environment IR sensing

 

 

Materials We Coat

We support coating services on a wide range of substrates:

• Optical Glass: BK7, Fused Silica, B270, SF11, etc.

• Optical Plastics: PMMA, PC, COC, COP, ZEONEX, OKP

• Infrared Materials: CaF₂, MgF₂, ZnSe, Ge, Si

• Molded Optics, Diamond-Turned Lenses, Polished Surfaces

Our engineers carefully select coating processes to ensure strong adhesion, minimal stress, and long-term stability across thermal and humidity cycles.

 

 

In-House Coating Facilities

Yighen’s optical coating workshop is equipped with:

• Advanced vacuum deposition systems
  (electron-beam evaporation, ion-assisted deposition, thermal evaporation)

• Cleanroom environment for contamination-free processing

• In-line thickness monitoring and optical in-situ control

• Custom jigs and tooling for complex geometries and molded optics

 

 

Optical Coating Quality Assurance

All coatings are fully tested using professional metrology equipment:

• Spectrophotometer for transmission/reflection spectrum

• Surface roughness (Ra) testing for plastic optics

• Adhesion, abrasion, humidity & salt spray tests (MIL and ISO standards)

• Coating uniformity and angle dependency verification

Our processes are ISO 9001 and ISO 13485 compliant, supporting both industrial and medical applications.

 

 

Applications We Serve

Our optical coatings are widely used in:

• Medical devices: Endoscopy, PCR, OCT

• Machine vision & automation: AR/HR coatings for image clarity

• Infrared sensing: Drone payloads, thermal cameras, gas detection

• AR/VR & 3D sensing: Laser coatings, beamsplitters, SWIR filters

• LiDAR and laser systems: High LIDT coatings for beam optics

 

 

Why Choose Yighen for Optical Coatings?

✅ Full in-house capability: coating + optics machining + QA
✅ Custom coatings for plastic or glass optics
✅ High uniformity and repeatability in mass production
✅ Fast turnaround for prototyping or urgent batch orders
✅ Responsive engineering support from DFM to production

 

 

📍 Our Factory

Yiguang Technology – Dongguan Optical Coating Facility
No. 6, Hongye North Road, Shatian Town, Dongguan, Guangdong, China
 

 

 

 

🎯 Precision Coatings That Complete the Optics — Not Compromise Them

From broadband anti-reflection to high-reflective, IR-pass, beamsplitting, and custom filter coatings — Yighen delivers in-house optical coatings for both molded plastics and precision-machined glass.

We control every step: surface prep, deposition, and post-coating testing. Whether for prototypes or mass production, consistency is our promise.

🔵 Request a Coating Evaluation
📩 Tell us your substrate and spectral range — we’ll respond within 24 hours with coating feasibility and options.

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Want to explore our coating types, materials, and testing equipment?
📄 Download Our Coating Capability Sheet

Wondering how we ensure adhesion, durability, and spectral performance?
👤 Learn More About Yighen

 

 

 

 

🔗 Related Content

• 🛠 Optical Mass Production
  Integrated coating in high-volume workflows — no outsourcing required.

• 🧱 Precision Optical Molding
  Plastic lenses fully coated and ready for optical system integration.

• ⚙️ Opto-Mechanical Design Services
  Ensure coating layers are accounted for in your optical stack-up and tolerancing.

• 🔬 Optical Metrology & Testing
  Coating thickness, reflectance, and transmittance — validated in-house.