Golden Yellow Longpass Filter | JB400-JB520 Optical Glass

High-Precision Golden Yellow Longpass Optical Glass Filters

Our JB series (Golden Yellow) longpass filters are manufactured from premium ion-colored optical glass. These filters are designed to effectively block ultraviolet and shorter visible wavelengths while providing exceptional transmission (T > 90%) for longer wavelengths. They are ideal for fluorescence imaging, IPL medical beauty devices, and industrial precision sensing.

Technical Specifications & Cross-Reference

Model	Cut-off (λc)	Schott Equiv.	Hoya Equiv.	Appearance
JB400	400nm ± 5nm	GG400	Y40	Light Yellow
JB420	420nm ± 5nm	GG420	Y42	Yellow
JB450	450nm ± 5nm	GG450	Y44	Golden Yellow
JB490	490nm ± 5nm	GG490	Y48	Deep Yellow
JB520	520nm ± 5nm	OG515	Y52	Orange Yellow

Key Features

Sharp Slope: Precise wavelength cut-off with minimal leakage.
Custom Fabrication: Available in circular, rectangular, or complex shapes with edge polishing and drilling.
Standard Sizes: 25mm dia, 50x50mm square; thicknesses from 0.5mm to 5mm in stock.
High Durability: Chemically stable and thermally resistant for industrial environments.

Applications

Widely used in fluorescence microscopy to isolate emission signals, IPL medical devices for skin protection, and optical sensors to enhance signal-to-noise ratios by blocking unwanted UV/Blue spectrum.

Need a Custom Quote?
We provide professional OEM/ODM services for optical glass. Contact us at [email protected] for bulk pricing and technical datasheets.