Incandescent lamp

Details Incandescent lamp Incandescent lamp

H - Electricity

01

J

H01J 1/60 (2006.01) H01K 1/32 (2006.01)

Patent

CA 2347603

The invention relates to an incandescent lamp whose lamp vessel (20) has an interference filter (30) with locally differing layer thickness for producing red light. The interference filter (30) has a second absorber layer and additional layers of low optical refraction and high optical refraction for reducing its transmission in the violet, blue and green spectral regions.

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