Core Features

•Material: BK7 is borosilicate optical glass with high transmittance (visible light wavelength of over 90%) and low bubble/impurity content.

• Refractive index: approximately 1.5168 (@ 587.6nm), suitable for conventional optical designs.

• Hardness and stability: Mohs hardness 6-7, scratch resistance, low coefficient of thermal expansion, suitable for temperature difference environments.

Typical applications

• Laser system: used as a laser cavity mirror, beam expander or beam shaping element.

• Imaging equipment: substrates for lenses, prisms, and spectrometers.

• Lighting guide: evenly dispersed light sources, such as medical endoscopes or backlight modules.

Selection considerations

• The coating requirements need to be confirmed based on the wavelength range (UV/visible/infrared).

• Surface accuracy (such as λ/4) affects optical performance and needs to be matched with application scenarios.

Precautions

Cleaning and maintenance: Use a soft cleaning cloth and specialized cleaning agent to clean and avoid scratching the surface.

Storage environment: Store in a dry, well ventilated environment to prevent moisture and mold.

Usage: During use, avoid severe vibration and collision to avoid affecting its optical performance.

Please tell us the material, size, laser power, application before quote.