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480nm Longpass Filter,LP480nm Long-wavelength pass Filter, Support customized

Product features

● Narrow transition zone slope less than 20nm transmission and reflection.

● High transmittance over 90% or higher

● Deep cutoff depth OD2 or customized

● Superior quality glass material, vacuum deposition hard membrane, membrane layer can withstand the fire flame combustion experiments.

● Excellent environmental stability

● Customization available

●Applications: Fluorescence imaging, Beauty & cosmetic devices / IPL equipment, Laser protection, Multiband detection, Stage lighting, Facial recognition, Machine vision

Product Detail

1.Product Descriptions:

Characteristics:	480nm Longpass filter
Type:	Longpass filter
Central Wavelength (CWL):	480nm ±3nm
Transmittance:	>92%
Optical Density：	OD2-OD3
Surface Quality:	60/40
Color:	Yellow
Shape:	Round, Square, Custom Shape
angle of incidence：	specified
Dimension:	specified
Thickness:	specified
Substrate:	Ultra-clear glass,K9,BK7,B270,D2637T, Quartz Glass(Fused Silica), sapphire or other specified.
Spectral range:	350-1100nm
Remark： Customized capability: 380-2500nm, stock for 10nm intervals. Common for 86x86mm, 80x80mm,other can customized. max: 300x300mm. ** Option: 0.21、0.3、0.55、0.7、1.0、1.1、2.0、3.0mm…etc.

2. Measured Spectral curve

Picture 1: LP480nm Spectral Curve

3.What is typical application for 480nm longpass filter?

A 480nm Longpass Filter is an optical component that allows light with wavelengths longer than 480nm to pass through while cutting off light with shorter wavelengths. 480nm Longpass Filters play a key role in multiple fields. Examples include IPL beauty devices, fluorescence imaging, machine vision, stage lighting and photography, as well as multi-band detection (such as multi-band detection instruments and facial recognition attendance systems).

4.What is key parameter when choose for right Longpass filters?

When selecting a Longpass Filter, there are several key parameters we need to consider. First, cut-on wavelength, this is the most critical parameter of the filter. Second, transmission rate. The transmission is typically >90%. Achieving higher levels requires optimized coating designs. Third, blocking depth. The higher the OD, the stronger the blocking capability. Forth, edge steepness. Fifth, transmission band range. Sixth, substrate material. Such as N-BK7, B270, Fused Silica, Sapphire. Seventh, dimensions ang incident angle.

Shenzhen Hengda Liyuan Optoelectronics introduced advanced optical technology that apply depositing nanomaterials through ion-assisted evaporation onto a multilayer hard film in a high vacuum environment which coating layer is firm and has good tightness, and small bandwidth drift. Liyuan optoelectronics have been focus on optical coating for more than 17 years and offer one-stop optical filters solution including Narrow Bandpass Filters, IR cut-off Filters, Longpass & Short Filters, Notch Filters, ND filters, Star filters and Optical sapphire block.

other Longpass filters in stock from Liyuan Optoelectronics: LP430 LP500 LP560 LP600 LP650 LP800…etc.