Likhalase tsena tse peli tsa optical li na le moralo o bonolo le oa setaele, o entsoeng ka thepa ea boleng bo holimo ea acetate, 'me o na le mebala e fapaneng eo u ka khethang ho eona. Likhalase tsa rona tsa optical li sebelisa moralo oa hinge oa selemo, o etsang hore li phutholohe ho apara. Ntle le moo, re boetse re ts'ehetsa ho tloaeleha ha li-LOGO tse nang le bokhoni bo boholo le ho etsa liphutheloana tsa likhalase, ho fana ka likhetho tse ling bakeng sa litlhoko tsa hau.

Likhalase tsa rona tsa mahlo li hlahella ka mokhoa o bonolo le oa setaele. Moralo oa foreimi o bonolo ebile o seatla se bulehileng, o loketse mefuta eohle ea libopeho tsa sefahleho, ebang ke liketsahalong tsa khoebo kapa bophelong ba letsatsi le letsatsi, o ka bonts'a botle ba hau ba botho. Re sebelisa lisebelisoa tsa boleng bo phahameng ba acetate ho netefatsa boleng le ho tšoarella ha likhalase. Eseng seo feela, re boetse re fana ka mebala e fapaneng eo u ka khethang ho eona ho fihlela litlhoko tsa hau tse fapaneng tse ts'oanang, ho u lumella ho bonts'a tatso ea hau ea feshene.

E le ho etsa hore phihlelo ea hau ea ho apara e phutholohe haholoanyane, re ile ra etsa li-hinges tsa selemo ka ho khetheha ho etsa hore likhalase li lumellane le sefahleho sa sefahleho haholoanyane, ho se bonolo ho thella, e le hore u ka ikutloa u phutholohile ha u li apara ka nako e telele. Ebang ke mosebetsi kapa boikhathollo, likhalase tsa rona tsa mahlo li ka u tlisetsa phihlelo ea ho apara hantle.

Ntle le moralo le boleng ba sehlahisoa ka bosona, re boetse re ts'ehetsa ho tloaeleha ha li-LOGO tsa bokhoni bo boholo le ho etsa likhalase tsa ho paka. U ka etsa logo e ikhethang likhalaseng tsa hau ho latela litlhoko tsa hau kapa tsa khoebo ho bonts'a botle ba hau. Ka nako e ts'oanang, re boetse re fana ka likhetho tse fapaneng tsa ho paka likhalase ho eketsa likarolo le botho ho likhalase tsa hau.

Ka bokhutšoanyane, likhalase tsa rona tsa mahlo ha li na sebopeho sa feshene le lisebelisoa tsa boleng bo holimo feela, empa li boetse li ts'ehetsa mokhoa oa hau oa ho ikhethela, o etsa hore likhalase tsa hau li ikhethoe. Ebang ke sesebelisoa sa hau kapa mpho ea khoebo, likhalase tsa rona tsa mahlo li ka khotsofatsa litlhoko tsa hau 'me tsa u tlisetsa likhetho le lintho tse makatsang. Re lebelletse ketelo ea hau, lumella likhalase tsa rona tsa optical hore e be karolo ea bophelo ba hau ba feshene!