Notch filter (negative filter)

Notch filter (negative filter)

Notch filter is also called negative filter, refers to the cut-off wavelength of the middle part of the band, through the light wave at both ends of the band, such as the cut-off 532nm green light, transmittance 470nm blue light and 635nm red light, etc., can also be customized according to customer requirements.

Product features: high temperature evaporation coating process, ion source auxiliary coating technology, hard film plating, film firmness is good.

Applications: Biomedicine, fluorescence analysis, lasers, laser applications, etc.

Take 580nm negative filter parameters as an example:

Material: optical grade glass

High permeability band: 420nm~510nm@Tave> 90%&650nm-1100nm@Tave> 88%

Cut-off band: 580±30nm@Tave< 0.1%

Surface quality: 60/40

Shape: can be made round, square, shaped

Packing method: according to customer's requirement

Advantages:

Hard film plating, long service life, accurate wavelength positioning, low temperature drift, good cutoff depth

Our company can design and develop the filter according to the type of light source. With the support of many old and new customers, Huaxusheng optoelectronics keeps innovating on all kinds of filters and launches more high-quality products in line with market demand.

We offer more transportation options

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