700nm Longpass Filter,LP700nm Long-wavelength pass Filter, Support customized

  • 690nm Longpass Filter

Product features

● Narrow transition zone slope less than 20nm transmission

● High transmittance over 90% or higher

● Deep cutoff depth  OD2-OD6 or customized

● Superior quality glass material

Product Detail

1.Product Descriptions :

Characteristics: 700nm Longpass filters 
Central Wavelength (CWL):700nm or specified
Peak Transmittance:>90% or specified
Full Width at Half Maximum(FWHM):specified
Cut-off depth:OD2-OD6
Dimension:specified**
Thickness:specified***
Remark:Can do customization per requirement

2. Measured Spectral curve

Picture 1: LP700nm Spectral Curve

What is typical application for 700nm longpass filter?

The 700nm longpass filter finds applications in near-infrared (NIR) photography & cinematography, astronomical observation, fluorescence & biomedical imaging, industrial machine vision & sorting, laser safety & system clean-up, scientific & environmental sensing, sensor protection.

What is key parameter when choose for right Longpass filters?

When selecting a Longpass filters, the center wavelength (CWL) will be one of key parameter to be designated, with a tolerance of generally +/-5nm or +/7nm which depend on the user inquiry. Secondly,Peak and Average Transmittance,e.g 90%,95%…etc. higher transmittance might need Anti-reflective(AR) coating.

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 Fitlers, 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.

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