470nm Low Pass Filter

Parameter

470nm Low Pass Filter

CWL

470±10nm

Peoduct size

custom (Square of round)

Transmission wavelength

350nm-460nm

Optical density

>OD2-OD6 

Product material

K9,BK7,B270,D263T

Surface quality

60-40,40-20

The 470nm Low Pass Filter is designed to transmit light wavelengths shorter than 470nm while blocking longer wavelengths, ensuring excellent spectral separation and high transmission efficiency. This makes it an essential component in fluorescence imaging, spectroscopy, biomedical instruments, machine vision, and laser-based applications.

Key Technical Features of Optical Glass Filters

Material Options: High-quality optical glass, fused silica, or customer-specified materials

Coating: Durable dielectric coating for high transmission and blocking performance

Optical Density (OD): Up to OD 6 blocking above 470nm

Surface Quality (Scratch-Dig): 40/20, 20/10 available for high-precision needs

Flatness (Surface Accuracy): λ/4 to λ/10 at 633nm

Tolerance: Diameter ±0.1mm (custom tighter tolerance upon request)

Clear Aperture: ≥90% of total dimension

Shape: Circular, square, or customized