Yighen Ultra Precision – Custom Optical Design & Ultra-Precision Machining

Global Patent Portfolio Layout and Licensing Collaboration

Patent layout in the United States, Europe, Japan, and Korea

YIGHEN ULTRA PRECISION LIMITED holds 36 invention patents in optical display. Eight of these are international patents. The portfolio covers key markets such as the United States, Europe, Japan, and South Korea.

The company focuses on XR development. It has core technologies in AR. In customized design, optical technology development is offered. Packaged services include technology transfer and licensing.

Yighen optical technology patent certificates showcasing proprietary innovation

Yang Jianming

/CTO

Educational background:PhD in Optical Engineering, University of Strasbourg, France; Master of Optical Engineering, Changchun Institute of Optics and Mechanics, Chinese Academy of Sciences

Professional skills:has achieved breakthrough results in many optical fields.

Frontier optical design: AR symmetry theory; spherical AR near theoretical limits; 80° FOV cylindrical waveguide. 30+ patents, Optics Letters publications.

Precision manufacturing technology: Masters single-point diamond turning at nanoscale (PV accuracy < λ/4). Proficient in ultra-precision cold grinding for hard materials such as glass and tungsten steel. Established a closed-loop system for design, processing, and measurement optimization.

System assembly integration innovation: micron-level assembly (<3 μm) and mass-produced complex optical systems.

Fan Qunwen

CEO

Educational background:MBA from Zhejiang University, M.Eng from Tongji University. Rich in entrepreneurship & marketing, masters advanced optical engineering technology and development processes.

Professional skills

Supply Chain Management: Seasoned in optical design, processing, & coating supply chain. Manages procurement to delivery. Knows the market, selects suppliers, cuts costs, and ensures quality.

Customer Delivery: Coordinates supply chain for on-schedule projects. Solves customer issues in product design, production & delivery, ensuring top-notch service.

Hardware & software development and management: extensive experience in software and hardware R&D management. Familiar with the full lifecycle of software and hardware product technology development, able to effectively manage and guide project needs research, solution design, and the development process.

Jiao Jiannan

/Optics Specialist

Educational background:PhD in Mechanical&Aerospace Engineering from Nanyang Technological University, Singapore. Focus on optical precision design, measurement, manufacturing tech R&D, and industrial applications. Guided by renowned scholars, research cover femtosecond laser additive manufacturing, nonlinear optical measurement, and micro-nano optical device design

Academic achievements:has been published in top journals such as Optics Express, Nanoscale, and IEEE Transactions on Geoscience and Remote Sensing, and has been the corresponding author many times.

Technology research and development:Jiao led national/industrial projects, including a Singapore NSF project designing femtosecond laser systems for micro-nano devices and transparent surface measurement. As tech director, he developed nonlinear measurement systems and ITOF 3D sensors for industrial detection.

Invention patents:Holds 10+ patents in non-diffracting beams, holographic detection, etc. Specializes in interdisciplinary integration, optical modeling, micro-nano manufacturing, and measurement algorithms. Senior expert in optical tech transformation for smart manufacturing, AR/VR, and remote sensing.

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Core Service: Optical Design

Core Services: Optical Processing and Coating

YIGHEN ULTRA PRECISION is the world's top optical design company. The team is made up of professionals, many of whom hold PhDs and master's degrees from prestigious universities. They not only have a sound theoretical background but also extensive practical experience and are highly skilled in the use of various optical design tools and software. We design everything from AR and VR devices to consumer and professional-grade optical goods. In the AR/VR arena, armed with a thorough understanding and application capabilities for advanced technologies such as optical waveguides, enabling the combination of imaging technology and endoscope design concepts to create new breakthroughs in optical performance.

YIGHEN ULTRA PRECISION is extensively renowned in the business, having published numerous high-quality articles in top journals and holding over 30 patents. We developed some novel ways that successfully improved the field of vision of AR devices while pushing the boundaries of earlier technology. When you choose YIGHEN ULTRA PRECISION, you are choosing cutting-edge optical design technology that will provide efficient, innovative solutions for your products.

Optical System Design Services

SPDT machining of calcium fluoride (CaF2) optical component

Certificate of Awards Won by YIGHEN

YIGHEN ULTRA PRECISION LIMITED has made breakthroughs in optical design and ultra-precision machining. It won a bronze award at the 2nd Guangdong-Hong Kong-Macao Greater Bay Area Doctor Innovation Competition, showing industry leadership.

At the 8th Guangchuang Competition, its Hard Steel Optical Mold Core (Ra < 7 nm, accuracy < 0.2 μm) and dynamic error compensation algorithm triple mold life and reduce processing time by four weeks. Its AR/VR optical designs (Birdbath, Pancake optimization) and free-form prisms were recognized at the Greater Bay Area Expo.

With an international doctoral team and a 1300-sqm nano-processing center in Singapore equipped with NanoTech 650 FG, it delivers high-precision optical components for consumer electronics, biomedicine, and LiDAR. These honors reflect its contribution to high-end optical manufacturing and industrial innovation.

5-axis CNC machining of complex mechanical housing for optical integration

Core Service: Ultra-precision Machining of Optical Structural Components

YIGHEN ULTRA PRECISION delivers high-precision, reliable CNC machining for optical structures. Advanced equipment, skilled technicians, and rigorous quality control ensure compliance with demanding optical requirements.

Precision Machining

High-performance CNC tools and techniques achieve micrometer-level accuracy. This ensures close adherence to design specifications.

Material Expertise

Capabilities include metals such as aluminum alloys and stainless steel, as well as non-metals like plastics. Processing is optimized based on material properties for best results.

Angular accuracy is vital in glass prism manufacturing. It directly affects light propagation, imaging, and beam quality. YIGHEN prisms achieve angular accuracy up to ±0.00027° (max 2″). Dimensional tolerance is ±0.01mm. Surface roughness is Ra≤5nm. Surface accuracy reaches λ/10. These specs ensure high optical performance and system compatibility. They support use in research, medical devices, and precision optics.

control interface showing precision grinding process of aspheric optical surface

ultra-precision grinding of glass aspheric lens with sub-micron accuracy

Glass Aspherical Optical Processing: Sampling to Mass Production Services

YIGHEN offers glass aspherical optical sampling services. These support R&D and small-batch verification. Advanced tech and equipment turn concepts into physical parts. In mass production, ultra-precise molds enable high-precision replication. Over 95% of the material is used. Unit costs are reduced. Full-chain service from prototype to production is provided. Glass aspheric surfaces are shaped using high-precision grinders. Real-time inspection checks micron-level dimensions and nanometer-level surface quality. Sample accuracy is ensured.

YIGHEN ULTRA PRECISION provides optical components made using single-point diamond turning (SPDT). This method enables ultra-precision machining of optical plastics. One-step molding is achieved through in-house techniques. These are supported by expertise from our doctoral-level engineering team. Optical resin blocks—such as PMMA, PC, and COP—are machined with high precision. Surface quality remains excellent. Tight tolerances are maintained.

Key Advantages:

Cost & Time Efficiency: Mold costs are reduced to a few thousand dollars. Lead times are shortened to weeks. This suits small-batch or prototype needs. Rapid Customization: Complex structures can be tailored quickly. Examples include aspheric and diffractive surfaces. Design iterations are easy. Validation is fast. This benefits lab work and specialized projects.

Precision Guarantee: Injection molding is not needed. Material shrinkage is avoided. Surface accuracy and finish stay consistently high. Ideal for scientific instruments, medical devices, and high-end imaging systems.

Stability at Room Temperature: Cutting is done without heat. Resins remain stable. There is no thermal stress or deformation. Surface consistency is ensured.

New Material Compatibility: Heat-sensitive resins are processed without damage. Their original optical properties are preserved. This expands material options for advanced applications.

YIGHEN ULTRA PRECISION specializes in optical design and manufacturing for plastic lens mold cores. These are made from hardened stainless steel. This is a nickel-free material known for high precision and excellent quality. It ensures reliable performance and long-term durability.

The company also produces optical components from soft materials. Examples include aluminum and copper mirrors. These support various applications. Customers come from Asia, Europe, America, Oceania, and other global markets.

Mold core types include spherical, aspheric, Fresnel, multi-planar, diffraction, matrix (lens array), and hybrid designs. These are used in mobile phone camera lenses. They are also used in laser mice, flashes, and digital read-write heads. Other uses include optical fiber connectors, biomedical devices, and optical sensors. Each design supports high optical performance. System stability is also ensured. To improve molding accuracy, the company developed special software. It is called the "Injection Molding Shrinkage Error Compensation Algorithm Software." This tool allows profile correction before production starts. It helps reduce errors during injection molding. This leads to better product quality and consistency.

Mold cores are made using direct cutting steel technology. This method works well at high temperatures. It can handle up to 300°C. It is ideal for high-performance plastic injection molding.

Production cycles have been optimized. This improves efficiency. It also lowers manufacturing costs. Ultra-precision machining supports small-diameter mold cores. Most are under 8mm in size. Some are even smaller than 1mm. A sagittal height-to-caliber ratio of up to 0.4 can be achieved. Surface roughness (Ra) stays below 8 nm. Profile accuracy is within 0.2 microns (PV value). These specs meet the highest precision requirements in modern optical design and manufacturing.

single-point diamond turning of optical plastic lens on ultra-precision lathe

Hard Steel Die: Ultra-precise Optical Machining

Cost-effective Optical Verification: Rapid Prototyping Processing

Ultra-high precision glass prism processing

ultra-precision grinding of glass prism blank for optical instrumentation

Yighen optical machining facility with technicians operating precision equipment

quality control and inspection of optical glass components before shipment

finished optical prisms and lenses manufactured by Yighen for global clients

Clients in Partnership

global clients served by Yighen including medical, defense, and photonics leaders

16

Years of industry experience

100%

Customer Satisfaction

120+

Partnership

280+

Grants customer intellectual property

Providing world-class optical design and ultra-precision manufacturing solutions

Our team comprises professionals from famous universities such as Nanyang Technological University in Singapore, the University of Strasbourg in France, and Zhejiang University. These professionals have extensive experience in optical design, ultra-precision machining, materials science, and other relevant domains. As a result, we are well-equipped to provide our customers with professional optical modification options.

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Advanced processing equipment and cutting edge technology

The Yighen Nano-machining Center is supplied with a variety of world-class technology, including the NanoTech 650 FG ultra-fine free-form surface processing machine. The use of slow tool servo (rotary) and grid flying tool technology allows for high-precision turning of complex constructions. Our center has independently developed an error compensation algorithm to ensure the high precision and quality of our goods.

Omni-Domain Optical Customised Offerings

Our optical technology has numerous applications in a wide spectrum of industries. These include consumer electronics, such as mobile phone camera lenses; medical health, such as surgical microscopes and endoscopes; the automobile industry, such as vehicle lighting systems; and upcoming technologies, such as AR/VR equipment. We provide bespoke optical design services. Every aspect, from product specs and measurements to material selection, is meticulously tailored to fit the specific needs of our clients.

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Team Introduction

Shareholders

YIGHEN ULTRA PRECISION LIMITED was established in 2021 and focuses on optical services. It has received support from well-known investment institutions such as INNO Angel Fund, We Capital, Houtian Capital (Xiaomi Ecosystem), GAGE Capital, and Futurus Tech. This backing provides Yighen Ultra Precision with strong financial resources and expertise, driving its rapid development in the field of high-precision optical components.