BK7 Aspherical Optical Lens
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BK7 Aspherical Optical Lens Product Overview BK7 quartz B270 optical cemented high precision achromatic doublet convex lens for optical system Cemented Lens Technology The cemented lens, also called an achromatic lens, is formed by cementing two single lens elements. The performance of multi-color (white light) imaging is significantly higher than that of a single lens. The achromatic lens consists of two lenses of different materials glued together to correct the dispersion of the glass. By eliminating the problem of chromatic aberration, achromatic lenses have been widely used in multi-color lighting and imaging applications, improving cost-effectiveness. Technical Specifications
Professional Overview: The Geometric Advantage of Aspheric Surfaces In the evolution of modern optical design, the BK7 Aspherical Optical Lens represents a significant leap beyond traditional spherical optics. A BK7 Aspherical Optical Lens features a complex surface profile that deviates from a perfect sphere, allowing it to eliminate spherical aberration more effectively than any standard singlet. By utilizing high-grade Borosilicate Crown glass, each BK7 Aspherical Optical Lens provides a stable, high-clarity solution for converging light without the blurring effects typically seen at the lens periphery. Functional Advantages and Applications The BK7 Aspherical Optical Lens is a cornerstone of high-resolution photonics. Below are the functional advantages and real-world implementations:
Frequently Asked Questions Q1: When is a BK7 Aspherical Optical Lens preferred over a
spherical lens? Answer: A BK7 Aspherical Optical Lens is essential when you need to correct spherical aberration in a
fast system (low f-number). If a single spherical lens cannot
achieve the required spot size, a BK7 Aspherical Optical Lens will usually solve the problem by redirecting marginal rays to the
same focal point as the central rays. Q2: How do you verify the surface accuracy of a BK7 Aspherical
Optical Lens? Answer: We utilize non-contact profilometers and 3D laser interferometry
to map the aspheric surface. This ensures the BK7 Aspherical Optical Lens conforms exactly to the mathematical polynomial defined in your
design. Q3: Can the BK7 Aspherical Optical Lens be provided with high-power
coatings? Answer: Absolutely. We apply Ion-Assisted Deposition (IAD) coatings to the
BK7 Aspherical Optical Lens, allowing it to withstand the high energy densities required in
industrial laser welding and cutting. Q4: Is the ±0.005mm diameter tolerance available for micro BK7
Aspherical Optical Lens? Answer: Yes. For micro-optics, we use specialized centering equipment to
maintain the ±0.005 mm tolerance, ensuring the BK7 Aspherical Optical Lens aligns perfectly with fiber optic connectors or micro-sensors. Q5: Does the BK7 Aspherical Optical Lens have better thermal
stability than plastic aspheres? Answer: Yes, the glass-based BK7 Aspherical Optical Lens has a much lower coefficient of thermal expansion and higher
melting point than plastic, making the BK7 Aspherical Optical Lens far more reliable in fluctuating industrial environments. Q: What are your main products or which field do your products be
used? A: We are specialized in optical design, optical element processing,
lenses assembly. Such as Spherical lens, Aspherical lens,
Cylindrical lens, Reflector mirror, Filter, Rod lens, Camera lenses
etc. Our products are widely used in imaging, laser, lighting
applications. Q: What's your advantage? A:
Q: What's your MOQ? A: 10pcs. Q: What's your lead time? A: 1 day for inventory and 25-35 days for new projects. Q: What's your shipping type? A: Usually by FedEx, DHL, TNT, EMS etc or customer appointed. Q: What's your payment condition? A: T/T, L/C, VISA, PayPal, Alipay or negotiation. Q: What's your quality guarantee period? A: Three years. Company Profile Shanghai Advance Optical-Electronics Technology Co., Ltd. is a technology-based production enterprise, officially established in September 2009. The plant site 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 such as optical mechanical and electrical design, processing and sales services. We wholeheartedly provide each customer with high-quality and convenient products and services. 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, etc. Company Advantages
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