Hoya Heat Absorbing Filters

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BES OPTICS, INC. - Optics is our specialty!

   Hoya heat absorbing filters are slightly bluish, feature high transmittance in the visible region, and good absorption of infrared rays. These filters absorb thermal radiations emitted from a light source, and are highly effective when employed for slide projectors and a variety of illumination equipment.

Glass type

Transmittance at 750 nm

Use

Catalog thickness

HA-15

15%

Absorbing heat radiation

3.0 mm

HA-30

30%

Absorbing heat radiation

3.0 mm

HA-50

50%

Absorbing heat radiation

3.0 mm

Below are approximate spectral curves for the above filters

** HOYA HEAT ABSORBING FILTERS - from Bes Optics, Inc. **

For more information or prices on Hoya color filters please contact us.

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