High-precision aspherical qhov chaw tuaj yeem tsim los ntawm polishing (sib tsoo) txoj kev uas tswj cov tuab ntawm kev tshem tawm, xws li yas txhaj tshuaj molding thiab iav compression molding tshuab, cov tshuab no tuaj yeem ua ib feem ntawm aspheric lens. Yas lens txhaj tshuaj molding yog ib txoj kev ua uas molten resin txhaj rau hauv pwm, thiab siab yog siv thaum txias thiab solidifying. Txoj kev no tuaj yeem pheej yig thiab tsim tawm ntau, tab sis muaj qee qhov teeb meem nrog cov yas nws tus kheej, xws li kev hloov pauv kub thiab kev nqus dej noo. Kev hloov pauv hauv qhov ntsuas qhov ntsuas ntawm lub lens.
Compression molding ntawm iav yog txoj kev zoo tshaj plaws rau kev tsim cov khoom me me es tsis txhob txiav, sib tsoo, thiab sib tsoo lo ntsiab muag thiab prisms. Lub tshuab molding yog los tswj qhov kub hauv pwm kom siab tshaj lub iav hloov kub ntawm lub stamping thiab qis dua qhov kub thiab txias. Nyob rau hauv cov pwm, nkag mus rau hauv lub khob nrog fluidity, nias thiab daim ntawv, thiab khaws lub xeev no rau ntau tshaj 20s kom txog thaum lub iav tsim. Kev faib tawm qhov kub thiab txias yog qhov tsis sib xws, qhov tseeb ntawm cov pwm yog ua 0.1 μm, thiab qhov roughness ntawm qhov chaw yog qis dua 0.01 μm. Nyob rau hauv cov xwm txheej saum toj no, kev sib sau siab tuaj yeem ua cov khoom siv nrog qhov raug zoo sib xws rau cov pwm.
