Products
Material: BK7
Shape: Hemisphere
Bevel: Protective bevel as needed
Surface Quality: 80/50,60/40
Diameter: 10-300mm
Thickness: 2-8mm
Clear Aperture: ≥90%
Coating: Uncoated/AR/BBAR
Application: Camera protective cover
BK7 is the most commonly used optical glass, and BK7 domes are a popular optical protection element suitable for protecting internal optics or sensors while providing good optical performance. Selection requires a trade-off between performance and cost based on specific needs.
What are the applications of BK7 domes?
Shield: protects the internal optics or sensor.
Optical window: window element in an optical system.
Sensor protection: protection of the sensor from environmental influences.
Laser systems: protective windows in laser systems.
What are the advantages and disadvantages of BK7 domes?
Advantages:
High transmittance, high optical uniformity, good mechanical properties, lower cost.
Disadvantages:
Lower UV transmittance, higher coefficient of thermal expansion.
In perfect domes the convex radius is equal to the sum of the dome thickness and concave radius, respectively uncoated or with an antireflection coating.
