Custom N-BK7 Glass Optical Spherical Dome For Surveillance Cameras
The N-BK7 Glass Optical Dome is a versatile and high-performance optical component designed for use in surveillance cameras and underwater photography. Below is a detailed description of its material, property, function, and application:
Material:
- BK7 Glass: The lens is crafted from BK7 glass, a type of borosilicate glass known for its excellent optical properties, durability, and resistance to thermal shock. This material ensures the lens maintains its clarity and performance even in harsh environments.
Property:
- High Transparency: BK7 glass offers high transparency across a wide range of wavelengths, making it ideal for capturing clear and vibrant images.
- Good Chemical Resistance: The glass is resistant to various chemicals, ensuring the lens remains unaffected by exposure to water, salt, and other corrosive substances.
- Low Thermal Expansion: BK7 glass has a low coefficient of thermal expansion, minimizing the risk of thermal distortion and ensuring stable performance in temperature fluctuations.
Function:
- Wide Angle View: The dome shape of the lens provides a wide angle of view, allowing for the capture of a larger scene in a single frame. This is particularly useful in surveillance applications where a broad field of view is required.
- Image Clarity: The lens is designed to minimize aberrations and distortions, ensuring captured images are sharp and detailed. This is crucial for both surveillance and underwater photography, where clarity is essential.
- Protective Barrier: The dome shape of the lens also acts as a protective barrier, shielding the camera's internal components from debris, water, and other potential hazards.
Application:
- Surveillance Cameras: The BK7 Glass Optical Dome Lens is ideal for surveillance cameras, providing a wide angle of view and clear, detailed images. Its durability and resistance to environmental factors make it suitable for both indoor and outdoor surveillance applications.
- Underwater Photography: The lens' high transparency, chemical resistance, and protective barrier make it an excellent choice for underwater photography. It can withstand the pressure and corrosive nature of water, capturing stunning images of the underwater world.
- Outdoor Imaging Systems: The lens' low thermal expansion and resistance to environmental factors make it suitable for outdoor imaging systems, such as wildlife cameras, traffic monitoring systems, and more.
In summary, the N-BK7 Glass Optical Dome is a versatile and high-performance optical component that combines excellent optical properties, durability, and resistance to environmental factors. Its wide angle of view, image clarity, and protective barrier make it ideal for surveillance cameras and underwater photography. Whether you're monitoring a property, capturing stunning underwater images, or deploying an outdoor imaging system, the BK7 Glass Optical Dome Lens will provide clear, detailed, and reliable performance.
Item | Optical glass dome lens |
Material | Optical glass, Qurartz glass, borosilicate glass |
Diameter Tolerance | +0/-0.2 mm |
Thickness Tolerance | +/-0.2 mm |
Processed | by grinding, polishing |
Surface Quality | 80/50,60/40 |
Material Quality | no scratches and air bubble |
Transmission | above 90% |
Chamfer | 0.1-0.3 mm x 45 degree |
Surface Coating | Available |
Usage | Photography, Lighting system |


