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Precision Optical Components for Advanced Technology

Nanjing April Electro-Optics Ltd., established in 2012, delivers high-precision sapphire, quartz, and optical glass components trusted in laser systems, aerospace, infrared imaging, and medical devices.

Sapphire Wafers

Ultra-durable substrates for semiconductor and optical applications.

Precision Lenses

Custom aspheric, plano-convex, and cemented lenses with tight tolerances.

Custom Dimensions

MOQ of 1 piece. Tailored to your exact specifications.

About Nanjing April Electro-Optics

Founded in 2012, Nanjing April Electro-Optics Ltd. specializes in high-precision cold processing of crystal materials, including sapphire, quartz, and optical glass. Our core products include optical windows, lenses, crystal rods, prisms, filters, cylindrical mirrors, and ball covers.

We operate under the principle of "quality first, customer first, development and innovation." Our ISO9001-certified facility features a Swiss optical cold processing production line, CNC technology, and high-precision mechanical and chemical polishing techniques. With complete inspection equipment like Zygo interferometers and spectrometers, we ensure every product meets strict specifications.

Founded

2012

MOQ

1 piece

Expertise

20+ years experience

Markets

Asia, Europe, Global

Optical Processing Precision Equipment Optical Components Sapphire Materials

Our Core Products

High-precision optical components engineered for performance in laser, aerospace, medical, and industrial applications.

Sapphire Wafers

Sapphire Wafers

Ultra-flat, scratch-resistant substrates ideal for semiconductor and optical coating applications.

  • Material: Single-crystal sapphire
  • Thickness: 0.2–1.0 mm
  • Surface Quality: 10/5
  • Applications: IR windows, LED substrates
Trimming Cemented Lens

Trimming Cemented Lens

Dual-element lenses corrected for chromatic aberration, ideal for imaging systems.

  • Material: Optical glass
  • Coating: Optional AR coating
  • Clear Aperture: >90%
  • Custom focal lengths available
Sapphire Rectangle Window

Sapphire Rectangle Window

High-strength optical window with excellent transmission from UV to mid-IR.

  • Material: Synthetic sapphire
  • Size: Custom dimensions
  • Flatness: λ/4 @ 633nm
  • Applications: Defense, aerospace
Porro Prism

Porro Prism

Right-angle reflecting prism used in binoculars and optical alignment systems.

  • Material: BK7 or equivalent
  • Coating: Protected aluminum or silver
  • Angle Tolerance: ±2 arcmin
  • Surface Quality: 40-20
Sapphire Domes

Sapphire Domes

Hemispherical sapphire domes for harsh environment sensors and missile guidance.

  • Material: Single-crystal sapphire
  • Diameter: 10–100 mm
  • Transmission: 85% (3–5 μm)
  • High impact and abrasion resistance
Rectangle Step Window

Rectangle Step Window

Multi-level optical window for sealing and alignment in complex assemblies.

  • Material: Fused silica or sapphire
  • Precision step tolerance: ±0.01 mm
  • Flatness: λ/8
  • Used in vacuum and high-pressure systems
Crystal Rod

Crystal Rod

Precision-ground rods for laser gain media and optical alignment tools.

  • Material: Sapphire, YAG, or quartz
  • Diameter Tolerance: ±0.005 mm
  • Surface Roughness: <5 Å
  • Length up to 200 mm
Cylindrical Mirror

Cylindrical Mirror

Curved mirrors for line focusing in laser scanning and imaging systems.

  • Material: Optical glass or metal substrate
  • Coating: Aluminum, gold, or dielectric
  • Radius: Custom
  • Surface Accuracy: λ/4

All products available with MOQ of 1 piece. Custom designs and materials supported.

Why Choose Nanjing April?

  • ISO9001 Certified

    Full process quality control from raw material to final inspection.

  • Swiss Production Line

    Advanced CNC and polishing technology for micron-level precision.

  • Complete Testing

    Zygo interferometer, spectrometer, and surface profilers ensure compliance.

  • Global Support

    We assist with sourcing even if the product is outside our catalog.

2012
Founded
1
MOQ (Piece)
20+
Years Experience
100+
Global Clients

Frequently Asked Questions

What materials do you work with?

We specialize in sapphire, quartz (fused silica), and various optical glasses including BK7, B270, and SF11.

What is your minimum order quantity?

Our standard MOQ is 1 piece, allowing for prototyping and low-volume production.

Do you offer custom designs?

Yes, we provide full custom design and manufacturing services based on your drawings or specifications.

Are your products ISO certified?

Yes, our company has passed ISO9001 certification with full process quality control.

Can you help source other optical components?

Absolutely. If a product is not within our scope, we can recommend trusted suppliers to meet your needs.

Get in Touch

Reach out for quotes, technical support, or custom design inquiries.

Phone

+86-15195999306

+86-25-83602718

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