Optical Interference Filters

Coating Equipment for Precision Optical Components

Lowest op­ti­cal loss­es, pref­er­a­bly no ab­sorp­tion and scat­ter­ing, high trans­mis­sion in the fil­ter pass­band, deep block­ing in the fil­ter stop­band, steep, pre­cise fil­ter slopes—these are re­quire­ments for op­ti­cal in­ter­fer­ence fil­ters such as band­pass fil­ters, di­chro­ic fil­ters, beam split­ters, po­lar­iz­ing or notch fil­ters.

The per­for­mance of cam­er­as, pro­jec­tors, tele­scopes and op­ti­cal mea­sure­ment tech­nol­o­gy is be­ing im­proved con­tin­u­ous­ly. This re­quires stan­dard­ized com­po­nents with im­proved in­ter­fer­ence op­ti­cal coat­ings.

These mul­ti­lay­er coat­ings de­ter­mine the spe­cif­ic com­po­nent func­tion. They al­so re­flect light or se­lec­tive­ly split it in­to par­tial beams. They block in­di­vid­u­al wave­lengths or act as pass fil­ters for a spe­cif­ic light fre­quen­cy range.

We of­fer you coat­ing sys­tems for such de­mand­ing fil­ter de­po­si­tions.