Sunday Optics | Custom Precision Optical Components Supplier

About Sunday Optics

Changchun Sunday Optics Co., Ltd. was founded in 2013 in Changchun City, China — a renowned optical industry base. We are an integrated optics company specializing in optical glass processing, coating, optical assembly, and optical design.

Our core expertise lies in manufacturing high-precision optical components including spherical lenses, aspheric lenses, cylindrical lenses, prisms, optical filters, mirrors, windows, and laser optics. With a minimum lens size of 0.3mm and prism angle tolerance of 2 arcseconds, we ensure exceptional accuracy and surface quality — down to 0.1 nm roughness.

12+

Years in Operation

1M+

Annual Processing Capacity

Our Optical Products

We offer a comprehensive range of precision optical components tailored for aerospace, medical, defense, AI, and industrial applications. All products are customizable to meet your exact specifications.

Spherical Lens

• Plano-Convex, Bi-Convex, Plano-Concave, Bi-Concave
• Material: Optical glass, fused silica, BK7
• Diameter: 0.3mm to 150mm
• Surface accuracy: λ/4 @633nm

Aspherical Lens

• High NA designs for laser focusing
• Sub-micron surface accuracy
• Materials: N-BK7, Fused Silica, SF11
• Ideal for imaging and collimation

Cylindrical Lens

• Plano-Convex and Plano-Concave types
• Used in laser line generation
• Custom focal lengths and radii
• AR coatings available

Optical Prism

• Right-angle, penta, roof, wedge prisms
• 90° angle tolerance: 2 arcseconds
• High transmission coatings
• Applications in alignment and imaging

Optical Filter

• Bandpass, longpass, shortpass, ND filters
• Multi-cavity thin-film coatings
• High durability and laser damage threshold
• Custom spectral profiles

Optical Mirror

• Flat, concave, and custom-shaped mirrors
• Al, Ag, Au, and dielectric coatings
• Surface flatness: λ/10
• High reflectivity across UV-VIS-IR

Optical Window

• Parallelism: < 1 arcmin
• Materials: BK7, fused silica, sapphire, CaF2
• AR, V-coatings, or bare
• Used in sensors and protective enclosures

Laser Lens

• Designed for high-power laser systems
• Low wavefront distortion
• DLC and anti-reflective coatings
• CO2, fiber, diode laser compatibility

Ball Lens

• Diameter: 0.5mm to 25mm
• Materials: N-BK7, sapphire
• High numerical aperture
• Used in fiber coupling and sensors

Dome Lens

• Hemispherical and extended dome shapes
• For wide-angle imaging and IR systems
• Sapphire, germanium, silicon options
• High durability in harsh environments

Polarization Optics

• Polarizing beam splitters, waveplates
• High extinction ratio
• λ/4, λ/2 retardation plates
• AR-coated for specific wavelengths

IR & Sapphire Optics

IR Sapphire CaF2 Optics

• Germanium, ZnSe, Si, CaF2 lenses/windows
• Transmission from 0.2 to 12μm
• For thermal imaging and spectroscopy
• High laser damage threshold

View All Products

Our Services

From optical design to final assembly, we offer end-to-end solutions for custom optical systems across industries.

Optical Design

We provide full optical system design using Zemax and Code V, including imaging systems, laser beam shaping, illumination design, and optomechanical integration. Our team supports medical devices, aerospace sensors, and industrial inspection systems.

Optical Assembly

Precision alignment and bonding of multi-element optical systems. Cleanroom assembly with interferometric verification. Ideal for Cassegrain telescopes, laser alignment systems, and optical sensors.

Custom Coating

Broadband and laser-line anti-reflective coatings, high-reflective mirrors, dichroic filters, and DLC (Diamond-Like Carbon) coatings for extreme durability and low friction.

Prototyping & Mass Production

Fast-turn prototyping with full metrology reports. Scalable to annual volumes exceeding 1 million units. Strict quality control per ISO standards.

Applications Across Industries

Aerospace

Optical systems for satellites, navigation, and remote sensing with high reliability under extreme conditions.

Medical

High-resolution imaging optics for endoscopes, OCT, microscopy, and diagnostic equipment.

Military & Defense

Ruggedized optics for targeting, surveillance, night vision, and laser systems with MIL-STD compliance.

Artificial Intelligence

Optical sensors and imaging systems for machine vision, autonomous systems, and deep learning applications.

Unmanned Aerial Systems

Lightweight, high-performance lenses and imaging modules for UAVs and drones.

Exploration

Optics for deep-sea, space, and underground exploration systems requiring durability and clarity.

Get in Touch

For inquiries, quotes, or technical support, visit our official website to contact Changchun Sunday Optics Co., Ltd.

Visit Official Website to Contact

Phone: +86 151 0445 2660

Office: +86 431 8132 3204

Email: info@sunday-optics.com

Address: 3#, Liando U Valley, No. 946 Chaoyue Street, High-tech Zone, Changchun City, Jilin Province, 130102, China

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Precision Optical Components for Advanced Applications