BK7 Optical Glass Filters
BK7 Optical Glass Filters
,1.5mm Optical Glass Filters
,300mm crystal optics filters
| Materials | BK7 or other optical glass,quartz,sapphire,Ge,Si,ZnSe,CaF2 etc |
| Length | 5~200mm |
| Width | 5~200mm |
| Diameter | 1.5~300mm |
| Center thickness tolerance | +/-0.01mm |
| Length tolerance | +/-0.01mm |
| Width tolerance | +/-0.01mm |
| Diameter tolerance | +/-0.0005mm |
| Surface accuracy | N=1~3 |
| Irregularity | ΔN=0.1~0.5 |
| Surface quality | 10/5~60/40 |
| Coating | Upon request |
| Application area | Imaging,Lighting,Laser etc |
BK7 Optical Glass Filters are widely recognized for their excellent optical clarity, high transmission efficiency, and reliable performance across visible and near-infrared wavelengths. Manufactured from high-quality BK7 optical glass, these filters offer low inclusions, uniform refractive index, and outstanding homogeneity, making them ideal for precision optical systems. BK7 Optical Glass Filters are designed to selectively transmit or block specific wavelength ranges depending on coating configurations, ensuring enhanced signal quality and reduced optical noise. Due to their mechanical stability and ease of fabrication, BK7 Optical Glass Filters are extensively used in imaging systems, laser optics, and scientific instrumentation. Their compatibility with a wide range of coatings further enhances their versatility in demanding optical applications.


- High optical transparency: BK7 Optical Glass Filters provide excellent transmission in the visible spectrum with minimal absorption.
- Superior homogeneity: Ensures consistent optical performance across the entire filter surface.
- Low bubble and inclusion content: Enhances image clarity and reduces scattering effects.
- Excellent coating compatibility: BK7 Optical Glass Filters support a wide variety of thin-film coatings for tailored spectral performance.
- Mechanical durability: Offers good hardness and resistance to environmental stress, suitable for long-term use.
- Cost-effective optical solution: Compared to other optical materials, BK7 provides a balance between performance and affordability.
- Optical imaging systems: Used in cameras, microscopes, and projection systems for improved image quality.
- Laser optics: Suitable for beam shaping, filtering, and wavelength selection.
- Scientific research: Applied in spectroscopy, photonics experiments, and laboratory analysis.
- Industrial inspection: Enhances contrast and detection accuracy in machine vision systems.
- Medical devices: Supports diagnostic imaging and optical sensing technologies.
- Display and lighting systems: Used for color correction and spectral filtering in advanced illumination setups.


Shanghai Advance Optical-Electronics Technology Co., Ltd. is a technology-based production enterprise,officially established in September 2009,the plant site located in Qingpu Industrial Park, Shanghai, only half an hour's drive from Shanghai Hongqiao International Airport. The company gathers several excellent technicans in optical industry, has comprehensive supporting capabilities such as optical mechanical and electrical design, processing and sales services, and wholeheartedly provides 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 solution, 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:
- Have comprehensive design, production and sales capabilities, and provide customers with one-stop convenient procurement services;
- It has tens of thousands of optical molds and samples, which can provide customers with fast proofing services with low cost;
- Be able to participate in the customer's new product research and development early, provide feasible plans and suggestions, and make the project less detours;




Q1: What makes BK7 Optical Glass Filters different from other optical filters?
A: BK7 Optical Glass Filters are made from high-purity BK7 material, offering excellent optical clarity, stable refractive index, and superior transmission performance compared to standard glass filters.
Q2: Are BK7 Optical Glass Filters suitable for visible light applications?
A: Yes, BK7 Optical Glass Filters are optimized for visible wavelengths and provide high transmission with minimal distortion, making them ideal for imaging and display systems.
Q3: Can BK7 Optical Glass Filters be customized?
A: Absolutely. BK7 Optical Glass Filters can be customized in terms of size, thickness, coating type, and spectral characteristics to meet specific application requirements.
Q4: How durable are BK7 Optical Glass Filters?
A: These filters offer excellent mechanical strength and environmental resistance, ensuring long-term stability even in demanding optical environments.
Q5: What types of coatings can be applied to BK7 Optical Glass Filters?
A: A wide range of coatings can be applied, including anti-reflective (AR), bandpass, longpass, and shortpass coatings, allowing precise control over light transmission and reflection.
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