ʻO ke kūlana kiʻekiʻe i hoʻopilikino ʻia ʻo Optical Powell Prism no nā Lapaʻau Lapaʻau

Powell lens
ʻO ka lens Powell kahi lele nui i mua i ka hana generator laina ma luna o ka lens cylinder maʻalahi. Hoʻopuka ka lens cylinder i kahi laina i hoʻomālamalama maikaʻi ʻole ʻia, hoʻokahi i kaupalena ʻia e ka ʻano like ʻole, Gaussian laser beam. ʻO ka hale pōʻai ʻo Powell lens he ʻoiaʻiʻo he ʻāpana aspheric paʻakikī ʻelua e hoʻohua ai i ka nui o ka aberration spherical e hāʻawi hou i ke kukui ma ka laina; e ho'ēmi ana i ke kukui ma ke kikowaena me ka hoʻonui ʻana i ka pae kukui ma nā wēlau o ka laina. ʻO ka hopena, he laina i hoʻomālamalama like ʻia i hoʻohana ʻia i nā ʻano noiʻi ʻike mīkini āpau; mai ka hui bio-medical a me ka hui kaʻa a hiki i ka hana ʻana i nā kuki kokoleka.

ʻO ka hana o ka lens Powell a me nā hiʻohiʻona kino e alakaʻi ʻia e ka laulā beam. ʻO nā ʻokoʻa koʻikoʻi ʻo ia ka paʻi wāwae o ka peʻahi hoʻokaʻawale ma ka ʻaoʻao puka palahalaha e lawelawe ana ma ke ʻano he kau luna. Pono e mālama pono ʻaʻole e ʻoki ʻia nā mea hoʻokomo i ke kukui ʻokoʻa.

Ua like ka lens Powell me kahi prisma poepoe me ka laina o luna. ʻO ka lens he mea hoʻoheheʻe laina laser, e hohola ana i kahi kukuna laser haiki i kahi laina pololei i hoʻomālamalama ʻia.