Frequently Asked Questions

The 740 nm long pass filter is a Longpass Filter.

The central wavelength of the 740 nm long pass filter is 740 nm ± 3 nm.

The raw materials for the filter can include Fused Silica, B270, Float Glass, or other optical glass.

The transmission rate of the filter in the passing wavelength range (730 nm to 1100 nm) is greater than 95%.

The cutoff wavelength range for the 740 nm long pass filter is 300 nm to 720 nm.

The filter is coated with a hard film.

Advantages include a hard coating with long service life, wavelength accuracy, ion plating with low temperature drift, high penetration rate, and high cut-off depth.

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