Ho na le mefuta e mengata ea likhalase, ho kenyeletsoa likhalase tse tloaelehileng tsa meralo, kapa likhalase tse sebetsitsoeng le ho sebelisoa litšoantšong tse khethehileng.Litlhoko tsa ho hloekisa le bohloeki ba khalase le tsona li fapane.Kajeno ho tla hlahisa mochine o hloekisang o ka hloekisang khalase ea optical.

Ka lebaka la litšobotsi tsa eona, khalase ea optical e tlameha ho finyella litlhoko tsa litšoantšo tsa optical le boholo bo batlang bo le bobebe, kahoo lik'hemik'hale tse khethehileng li lokela ho ekeletsoa nakong ea ts'ebetso ea ho hloekisa ho qhaqha lerōle le litšila holim'a khalase, 'me metsi a hloekileng a hlokeha ho hloekisa khalase. .Thepa ea ho hloekisa likhalase tsa optical e hlahisoang ke k'hamphani ea rona e nka sebopeho se otlolohileng, se hloekisa limaraka tse tharo, 'me se na le litanka tse tharo tsa metsi.E hlatsuoa ka sefafatsi sa khatello e phahameng, ho hlatsoa meriana le metsi a hloekileng.Ka mor'a lihlopha tse peli tsa ho omisa, mokhoa oa ho hloekisa o qetella o phethiloe.