30mm Fused Silica Lens
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30mm Fused Silica Lens Product Overview Wholesale K9 optical glass clear glasses manufacturers 30mm sapphire dome cemented fused silica sapphire optical lens Professional Overview: The Excellence of Synthetic Quartz In the field of precision photonics, the 30mm Fused Silica Lens represents the pinnacle of material purity and thermal endurance. Unlike standard optical glasses, this lens is fabricated from high-grade synthetic fused silica, a material renowned for its near-zero coefficient of thermal expansion and exceptional transmission from the deep ultraviolet (UV) through the near-infrared (NIR) spectrum. This specific 30mm diameter is an industry-standard size, optimized for integration into high-performance laser systems, medical diagnostic tools, and semiconductor inspection equipment where thermal stability is a non-negotiable requirement. The manufacturing process involves meticulous cold-processing and super-polishing techniques. Because fused silica is significantly harder than crown glasses, creating this lens requires specialized diamond tooling and interferometric monitoring to ensure surface accuracy meets diffraction-limited standards. Technical Specifications
Product Images Key Advantages
Primary Application Areas
Frequently Asked Questions Why is the 30mm Fused Silica Lens preferred over BK7 for high-power
laser focusing? In high-power applications, even slight absorption of laser energy
can heat the glass. BK7 has a significant thermal expansion
coefficient, which causes the lens to deform and shift the focal
point. The 30mm Fused Silica Lens has a near-zero expansion,
ensuring the focal spot remains stable, which is critical for
consistent cutting and welding results. Can the 30mm Fused Silica Lens be used in cryogenic or vacuum
environments? Absolutely. The lens is highly resistant to thermal shock and does
not outgas in a vacuum. Its structural integrity remains intact
from liquid nitrogen temperatures up to over 1000°C, making it
ideal for space-borne instrumentation. How does the surface quality impact the performance of a 30mm Fused
Silica Lens? For laser users, surface defects can act as absorption centers. A
lens with a 10/5 Scratch-Dig rating ensures that there are
virtually no micro-imperfections to scatter light, thereby
significantly increasing the Laser Induced Damage Threshold (LIDT). Is the ±0.005mm diameter tolerance standard for every 30mm Fused
Silica Lens? We offer various tolerance grades. While ±0.05mm is standard for
general use, our high-precision ±0.005mm version is available for
customers using automated assembly lines where the lens must seat
perfectly without manual adjustment. What coatings are most effective for a 30mm Fused Silica Lens in UV
applications? For UV work, we typically apply a Magnesium Fluoride (MgF₂) or a
specialized UV-AR coating. This can increase transmission to over
99% at specific wavelengths like 266nm or 355nm. Company Information Shanghai Advance Optical-Electronics Technology Co., Ltd. is a technology-based production enterprise, officially established in September 2009. The plant is located in Qingpu Industrial Park, Shanghai, only half an hour's drive from Shanghai Hongqiao International Airport. The company gathers several excellent technicians in the optical industry and has comprehensive supporting capabilities including optical mechanical and electrical design, processing, and sales services. We provide high-quality and convenient products and services to each customer. Business Scope Optical mechanical and electrical module development, precision optical element processing, camera lens design and processing, optical design and optical path optimization solutions, technical consultation and after-sales service. Application Fields Machine vision, artificial intelligence, biomedical, smart city, high-end monitoring, testing instruments, equipment, laser etching, special lighting, scientific research institutions. Company Advantages
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