Steinheil Cemented
Achromatic Triplets

Malo omwe kuwala kwa kuwala kumadutsa pakati pa disolo kumasiyana pang'ono ndi malo omwe kuwala kodutsa m'mphepete mwa lens kumalumikizana, uku kumatchedwa spherical aberration; kuwala kwa kuwala kumadutsa mu lens yowoneka bwino, pomwe pali kuwala kofiyira komwe kumakhala ndi kutalika kwatalitali kumakhala patali kwambiri kuposa pomwe pali kuwala kwabuluu komwe kumakhala ndi utali waufupi, chifukwa chake mitundu imawoneka ngati ikutulutsa magazi, uku kumatchedwa chromatic aberration. Popeza komwe komwe kumayenda kozungulira kumachitika mu lens yowoneka bwino kumatsutsana ndi lens ya concave, kudzera mu kuphatikiza kwa ma lens awiri kapena kupitilira apo kuwala kumatha kusinthidwa kupita kumalo amodzi, izi zimatchedwa kuwongolera kosinthika. Magalasi a Achromatic olondola pazosintha zamitundu yonse komanso zozungulira. Ma achromats athu okhazikika komanso odziwika adapangidwa ndikupangidwa kuti akwaniritse kulolerana kolimba kwambiri komwe kumafunikira pamakina amakono ochita bwino kwambiri a laser, electro-optical and imaging.