Peya yemalenzi akakodzera iwe pachako anofanirwa kutariswa zvizere musanganiswa nedhigirii redu, chinhambwe chevadzidzi, chimiro chechimiro, bhajeti, shandisa mamiriro uye zvimwe zvinhu.
Iyo refractive index yakafanana nesaizi yeshangu. Pasinei nemhando, aya ndiwo maitiro akajairika, ayo anogona kufarirwa kunzwisiswa sehupamhi hwelens. Iyo yakakwirira iyo refractive index, iyo yakaonda iyo lens. Iyo yakafanana 500 degree myopia, iyo 1.61 lens ndeye 1.56 nhete.
Kunyangwe iyo yakakwirira iyo refractive index iri, iyo yakaonda iyo iri. Kazhinji kutaura, iyo yakakwirira iyo refractive index ndeye, yakaderera iyo nhamba yeAbbe ndiyo. Sarudza dhigirii rakakodzera iwe pachako
Akasiyana refractive indexes ane akasiyana Abbe manhamba. Idzi dzinotevera nhamba dzeAbbe dzinoenderana neakasiyana refractive indexes:
1.50
Abbe nhamba 58
Iyo yakanyanya yepamusoro yeAbbe nhamba iri padyo nekuona chiitiko cheziso rakashama. Iyo spherical lens ichave yakakora zvakanyanya kana dhigirii rakakwirira. Inokodzera chete kune yakaderera-degree myopia mukati me250 madhigirii. Iyo base curve yakakura, uye haina kukodzera magirazi mahombe-frame.
1.56
Abbe nhamba 35-41
Nhamba yeAbbe ine mwero, 1.56 ndiyo yakaderera refractive index yemhando dzakawanda dzelens, iyo yakachipa uye yakakodzera myopia mukati me300 degrees; Hazvikurudzirwe kana tembiricha ichipfuura 350 degrees. Iyo lens ichave yakakura kana dhigirii yakakwira.
1.60
Abbe nhamba 33-40
1.60 uye 1.61 akasiyana maitiro ekunyora ane imwechete refractive index. Hapana musiyano. Zvinoenderana nemhando dzakasiyana uye dzakateedzana, huwandu hweAbbe hunosiyana kubva pa33-40. Semuenzaniso, kudzivirira kwemwaranzi yemwedzi unopenya 1.60 ndeye 33 dB, uye PMC yakatevedzana yemwedzi unopenya i40 dB.
1.67
Abbe nhamba 32
Yakaderera Abbe nhamba, kupararira kukuru uye general imaging maitiro. Mukati me550-800 degree myopia, 1.61 yakanyanya kukora, bhajeti ishoma, uye haina kupfuura 1.71, saka 1.67 isarudzo yekukanganisa.
1.71
Abbe nhamba 37
Kazhinji kutaura, iyo yakakwirira iyo refractive index ye lens, yakaderera nhamba yeAbbe uye yakakura kupararira. Nekudaro, nekubudirira kweiyo lens material tekinoroji, mutemo uyu uri kuputswa. Semuenzaniso, 1.71 yakatetepa kupfuura 1.67, uye nhamba yeAbbe yakakwirira.
1.74
Abbe nhamba 33
Iyo yakanyanya refractive index uye Abbe nhamba yeresin lens yakaderera, uye mutengo wakanyanya kukwirira. Zvisinei, kune myopia yakakwirira, hapana imwe sarudzo. Mushure mezvose, ukobvu ndiyo inogara ichinyanya intuitive chiitiko. Pamusoro pe800 madhigirii anogona kutariswa, uye anopfuura 1000 madhigirii anogona kutariswa pasina kufunga nezve chimwe chinhu. Ingofananidza 1.74.
Nguva yekutumira: Mar-09-2023