Large Optics
Yudi excels in the realm of large-diameter optical components, a critical need for precision instruments like telescopes and imagers. Unlike many, we embrace the challenge of achieving high precision, lightweight construction, and substantial size. Boasting state-of-the-art processing equipment and comprehensive testing facilities, we stand out as experts in crafting the most demanding large-diameter aspherical lenses.
Our prowess extends to customized production based on your design drawings and specified materials, offering complete prototype design and processing solutions aligned with your optical indicators. Leveraging advanced technology and stability-focused materials like Zerodur and fused silica, we consistently achieve surface accuracy better than lambda/20 p.v. and surface roughness under 1nm RMS. Coupled with low-reflectivity AR coatings on our large-diameter lenses, researchers gain the pinnacle of optical performance for their most rigorous experiments.
As China’s leading optical service provider, Yudi caters to the world’s eminent research institutions, government agencies, and industrial organizations. Our extensive range of test boards and tools covers various lens sizes and radii, reinforcing our commitment to precision and innovation.
Yudi takes pride in delivering intricate and sizable optical components, setting the bar with our advanced facilities and expertise. From large flat optics to lenses and mirrors, our offerings guarantee exceptional precision in surface shape, ultrasmooth surfaces, superior subsurface quality, and high laser damage thresholds—up to 2,000mm in size.
Selection by Materials
Currently, YUDI uses more materials: glass-ceramic (Zerodur), silicon carbide SiC, CDGM LW1, and Russian AstroStiall, etc. Customers can choose the most suitable base material based on actual application requirements, project cycle and cost budget. The lightweight mirrors processed using these base materials should be able to obtain an optical surface shape that meets the system quality requirements through optical processing, and the surface of the mirror The shape accuracy should remain stable in space environment work. Because they can maximize the following performance requirements:
Materials
The material used to produce lightweight optics must be able to adapt to the requirements of optical surface processing. The substrate should have a uniform microstructure, be able to withstand the process conditions of optical coating, and be easy to combine with the reflective film.
Perfect Precision
Yudi stands out among its peers, offering limitless customization options for large optics while maintaining exceptional precision for every optical requirement.
Large Optics in Specific Types
Yudi specializes in crafting large optic components tailored to address diverse challenges in research, engineering, and production. Ranging from 100 mm to 2000 mm, these components encompass windows, lenses, mirrors, prisms, and custom elements with unique specifications. The production capability for each component is influenced by factors such as material, geometry, accuracy, and application. While Yudi offers a broad product range, here are some specific types:
Reference Mirror
Large-aperture Optics Mount
Infrared Asperical Lens
Large-aperture SiC Mirrors
Lightweight Primary Mirror
Large-aperture RC Primary Mirrors
Explore More Possiblities of Large Optic in Applications
Expanding the effective aperture of optical systems proves pivotal in enhancing the resolution capabilities, particularly in the realm of space exploration. Yudi’s large-aperture optical components find crucial applications in astronomical optics, space optics, ground-based space target detection and identification, as well as in high-tech domains like inertial confinement fusion (ICF). In these domains, stringent demands for surface quality, accuracy, quality assurance, and data processing underscore the necessity for optics that ensure optimal performance and reliability. This underscores Yudi Optical Components’ unwavering commitment to advancing science and technology research.
Advanced Technologies for Every Challenge of Large Optics
Navigating the intricacies of large aperture component processing, we prioritize precision at every step of production. Our commitment reflects in the deployment of diverse grinding and polishing technologies, tailored to meet varied application requirements. Trust in our expertise for meticulous craftsmanship that transforms challenges into precision solutions.
CCOS Polishing >Harnessing mathematical models and real-time feedback, CCOS enhances processing efficiency and precision while maintaining impeccable surface quality. Yudi’s adept engineers, backed by extensive expertise, optimize the application of CCOS in the manufacturing of large-aperture optics for optical systems like telescopes and laser systems.
Airbag Polishing >Leveraging airbag polishing, an adaptive and controlled flexible processing method, Yudi empowers the real-time computer control of polishing tools or supports tooling flexibility. It helps in enhancing surface quality and mitigating damage risks during the production of large-diameter optical components, providing customers with improved cost control.
IBF Polishing >When complex optical designs such as large aperture and high-precision aspheric surfaces need to be simultaneously satisfied, Yudi prefers to use IBF polishing technology, which can achieve surface modification without stress and contact, overcoming the edge effects and subsurface damage problems that exist in traditional processing methods.
Metrology, Excellence at Precision, Safety and Efficiency
As a leading manufacturer of large optics in China, Yudi Optics not only possesses the most capable processing facilities by size but also builds a professional metrology laboratory exclusively for large optic inspection with the most advanced metrology technology and instruments.
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Subaperture splicing method
The surface of a large-aperture optical element is divided into several small areas, measured separately, and then spliced into an overall surface image, which can improve the sensitivity and resolution of the measurement.
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Interferometry
Yudi uses an automated interferometer to measure the shape and wavefront error on the surface of large-aperture optical components. Laser interferometry technology is used to measure dynamic properties such as position, vibration, and deformation of optical components. By combining two interference techniques, we can obtain comprehensive performance data of optical components.
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CGH
At Yudi, we employ Computer-Generated Hologram (CGH) detection technology to meticulously inspect large-diameter, high-precision optical components like telescope lenses and reflectors. This method, renowned for its exceptional precision and non-contact nature, though demanding in intricate calculations and experimental configurations, is a challenge mastered by our adept team. We take pride in our proficiency in CGH testing, ensuring the quality and precision of our optical components.
Quality Assurance
Multi-level quality control runs through the manufacturing process of each large optical component. Our quality management includes two parts: processing inspection and finished product inspection. All inspection results will be recorded and detailed inspection reports will be provided upon customer request.