High-Precision Large Diameter Optics for Advanced Imaging

Avantier provides meticulously crafted large optical components, along with comprehensive large-optics solutions for sophisticated imaging and photonics applications. The company's lenses, mirrors, prisms, domes, and windows, generally exceeding 100 mm in diameter, are tailored for fields such as astronomy, aerospace, satellite communication, laser technology, and scientific imaging, where factors like power management, reliability, and precision are essential.

Explore how Avantier's expansive Custom Optics platform facilitates complete large optics solutions, encompassing every stage from design to coating.

Video Credit: Avantier Inc.

Video Credit: Avantier Inc.

Video Credit: Avantier Inc.

What Is Large Optics?

Large optics refers to optical elements such as lenses, mirrors, prisms, domes, and windows that generally have diameters exceeding 100 mm and are designed to facilitate large clear openings and high energy transmission.

These components enable high-resolution imaging with reduced distortion, excellent light-collecting capability, and reliable operation in extreme temperatures, vibrations, and other challenging conditions.

Why Choose Avantier for Large Optics?

• Custom Fabrication: Large optical components are engineered to exacting optical and mechanical specifications, encompassing transparent aperture dimensions, angular deviation, surface planarity, and optical surface quality.
• Advanced Coatings: Exceptionally durable anti-reflective, high-reflectance, dielectric, beam-division, and laser-specification coatings calibrated for ultraviolet, visible, near-infrared, short-wavelength infrared, mid-wavelength infrared, and long-wavelength infrared spectral regions.
• Precision Manufacturing: Stringent dimensional tolerances confirmed via interferometric analysis, surface topography measurements, and evaluation of the elevated laser-induced damage threshold for demanding laser applications and aerospace optical systems.
• Wide Material Selection: Borosilicate glass, amorphous silica, zinc selenide, zinc sulfide, germanium, chalcogenide glass, sapphire, crystalline silicon, and specialized optical materials are tailored to specific application requirements.

Avantier represents a fully integrated, ISO-accredited optical manufacturing enterprise with extensive expertise in the design and fabrication of large-aperture optical assemblies for astronomical instrumentation, satellite systems, and high-power laser applications.

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Large Optics Product Portfolio

Large Optical Lenses

D570 mm x T31.75 mm Plano Lens. Image Credit: Avantier Inc.

• Custom oversized lenses in both spherical and aspherical designs
• Superior image clarity with reduced aberrations
• Wide openings for improved performance in low-light conditions
• Coatings for ultraviolet, visible light, infrared, and broad-spectrum uses
• Perfect for astronomical studies, earth observation, and high-power laser technologies

Large Optical Mirrors

D500 mm Optical Mirror. Image Credit: Avantier Inc.

• Particularly well-suited for directional beam control and optical imaging applications within telescopes, remote sensing equipment, LiDAR systems, and laser beam delivery
• Meticulously engineered reflective substrates featuring optional metallic or dielectric surface treatments
• Offered in flat, spherical, and off-axis parabolic (OAP) designs for the enhancement of system performance

Large Optical Prisms

90 mm x 90 mm x 125 mm Optical Prism. Image Credit: Avantier Inc.

• Employed for beam deflection, wavelength separation, and image orientation in spectrometric instruments, orbital optical systems, and laser measurement applications
• Offered in glass, metallic, crystalline, and precision optical polymer configurations
• Features superior-reflectivity surface treatments that achieve approximately 99.9% efficiency, with stringent angular precision and surface-uniformity management to reduce beam displacement.

Large Optical Domes

D187 mm Germanium Optical Dome. Image Credit: Avantier Inc.

• Facilitate expansive field-of-view imaging and sensing capabilities
• Optical transparency is maintained across the visible, ultraviolet, and infrared spectral regions
• Constituent materials include germanium, BK7, sapphire, acrylic, and fused silica, and are selected to provide an optimal balance of mechanical durability, environmental resilience, and spectral characteristics suitable for deployment in airborne, maritime, and space-based systems.

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Applications of Large Optics

Astronomical Telescopes and Space Imaging

• Primary and secondary mirrors, relay lenses, and windows designed for optical telescope elements (OTE) are engineered to optimize light-gathering capacity and angular resolution capabilities.
• Advanced optical systems incorporate large-scale optics that facilitate wavefront sensing, manage thermal performance, and mitigate stray-light interference while operating in vacuum and cryogenic environments, employing space-qualified coatings and structural assemblies.

Ultrashort Pulse Laser Compression

• Large‑diameter diffraction gratings and reflective optics are engineered to accommodate exceptionally elevated instantaneous power levels while remaining within established laser-induced damage threshold (LIDT) parameters.
• Surface uniformity and smoothness preserve the integrity of pulses and prevent distortion throughout the stages of amplification, chirping, and compression.

High-Resolution Optical Imaging

• Expanding the input aperture improves diffraction-limited resolution and light-gathering capability. This yields higher signal-to-noise ratios (SNR).
• The method is essential for monitoring the Earth, satellite imagery, and sophisticated medical systems that demand precise details and the ability to identify low-contrast objects.

Optical Metrology

• Substantial optical components undergo internal metrology assessments, including wavefront aberration, surface finish characteristics, and coating consistency verification, to ensure compliance with mission-critical specifications.
• Sophisticated interferometric systems, surface-profiling instruments, and specialized test apparatus facilitate precise evaluation of large mirrors, optical lenses, protective domes, and geometrically complex optical elements.

Beam Expanders and Laser Systems

• Specialized large-scale optical components are incorporated into beam-expansion systems and laser-transmission pathways to enlarge beam cross-section, minimize angular divergence, and enhance directional stability.
• They are engineered to facilitate accurate positioning and minimal-distortion beam propagation across industrial manufacturing applications, military targeting systems, and research-grade laser installations.

Materials for Large Optics

Source: Avantier Inc.

Large Optics Coating Capabilities

High-Performance Coatings for Large-Diameter Optical Components

Avantier specializes in sophisticated thin-film coating solutions specifically designed for large-scale optical components, including lenses, mirrors, domes, windows, and prisms, with diameters up to approximately 1000 mm.

The company's coating methodologies are optimized to achieve exceptional uniformity and long-term stability across the ultraviolet, visible, near-infrared, short-wavelength infrared, mid-wavelength infrared, and long-wavelength infrared spectral regions, serving critical applications in astronomy, aerospace, defense, laser technology, and semiconductor manufacturing.

Coating Types and Benefits

Source: Avantier Inc.

Engineered for Extreme Optical Performance

Optical coatings for large-scale components are engineered to provide exceptional performance characteristics, including:

• Laser damage-resistant (high LIDT) coatings
• Ultra-high transmission/reflectivity across UV–LWIR
• Low scatter and low absorption
• Thermal and mechanical stability for space and defense optics
• Uniformity <1% across large diameters
• MIL-spec and ISO-certified durability

Systems include the Bühler ARES1110, enabling precise deposition and uniformity control on large‑diameter substrates while maintaining surface accuracy and imaging performance.

Coating Capabilities Tailored to Large Optics

• Stress-optimized coating stacks, engineered to maintain surface precision
• Refined thin-film surfaces, designed for diffraction-limited imaging performance
• Precision edge management and masking solutions for large-format optical components
• Cryogenic and high-vacuum-compatible coating systems for aerospace applications
• Specialized capabilities in coating aspheric surfaces, hemispherical domes, prisms, reflective surfaces, and substantial optical substrates

From advanced space telescope mirrors to expansive infrared optical domes and high-intensity laser optical systems, Avantier provides superior coating performance essential for critical imaging and photonics applications.

Upgrade Large Optics with Advanced Thin-Film Coatings

Image Credit: Avantier Inc.

Avantier delivers precision-engineered optical coating solutions encompassing large-diameter anti-reflective coatings, high-reflective coatings, and specialized laser coatings, complemented by expedited turnaround times and comprehensive technical assistance throughout the entire process from initial concept through final production.

Avantier integrates extensive capabilities in large-optics design, precision manufacturing, metrology, and coating technologies to provide comprehensive large-optics solutions tailored for mission-critical imaging and photonics applications.

The organization's engineering team is equipped to assist clients throughout the entire development lifecycle, from initial concept through full-scale production, whether the requirement involves large-diameter anti-reflective coated lenses, space-qualified mirror assemblies, or high-power laser optical components.