ʻOi aku ka maikaʻi o nā lens bi-convex (a i ʻole nā lens convex pālua) ke kokoke ka mea i ka lens a haʻahaʻa ka ratio conjugate. Ke like ka mamao o ka mea a me ke kiʻi (1:1 ka hoʻonui ʻana), ʻaʻole i hoʻemi ʻia ka aberration spherical wale nō, akā, ua hoʻopau ʻia ka aberration chromatic ma muli o ka symmetry. No laila, he koho maika'i loa ia inā aia ka mea a me ke ki'i ma nā ratio conjugate piha kokoke i ka 1:1 me nā kaola ho'okomo ho'oka'awale. E like me ke kūlana o ka manamana nui, hana maikaʻi nā lens bi-convex i loko o ka liʻiliʻi aberration ma nā ratio conjugate ma waena o 5:1 a me 1:5, hoʻohana ʻia lākou no nā noi relay (Real Object and Image). Ma waho o kēia laulā, ʻoi aku ka maikaʻi o nā lens plano-convex.
Ma muli o kona hoʻouna kiʻekiʻe mai 0.18 µm a i 8.0 μm, hōʻike ʻo CaF2 i kahi kuhikuhi refractive haʻahaʻa e ʻokoʻa ana mai ka 1.35 a hiki i 1.51 a hoʻohana mau ʻia no nā noi e koi ana i ka hoʻouna kiʻekiʻe ma nā pae spectral infrared a me ultraviolet. ʻAʻole inert kemika ka calcium fluoride a hāʻawi i ka ʻoi aku ka paʻakikī i hoʻohālikelike ʻia me kāna barium fluoride, a me nā hoahānau magnesium fluoride. Hāʻawi ʻo Paralight Optics i nā Lenses Bi-Convex Calcium Fluoride (CaF2) i loaʻa me kahi uhi AR broadband i hoʻopaʻa ʻia no ka 2 µm a 5 μm spectral range i waiho ʻia ma nā ʻaoʻao ʻelua. ʻO kēia uhi e hoʻemi nui i ka awelika o ka nānā ʻana o ka substrate ma lalo o 1.25%, e hāʻawi ana i ka hoʻoili awelika ma mua o 95% ma luna o ka laulā uhi AR āpau. E nānā i nā kiʻi ma lalo no kāu mau kuhikuhi.
Nā hiʻohiʻona:
Material:
Kalsium Fluoride (CaF2)
Loaʻa:
ʻAʻole i uhi ʻia a i ʻole me nā ʻāpana Antireflection
Nā lōʻihi kiko:
Loaʻa mai 15 a 200 mm
Nā noi:
Kūpono no ka hoʻohana ʻana me Excimer Lasers
Nā kikoʻī maʻamau:
Kii Kuhikuhi no
Leni-convex lua (DCX).
Diane: Anawaena
f: Ka lōʻihi kiko
ff: Ka lōʻihi o ke alo
fb: Ka lōʻihi o hope
R: Uku o ka Curvature
tc: Mānoanoa waena
te: Mānoanoa lihi
H”: Ka Mokulele Poʻokela Ma hope
'Ōlelo Aʻo: Hoʻoholo ʻia ka lōʻihi kiko mai ke kua o ka mokulele nui, ʻaʻole ia e laina me ka mānoanoa o ka lihi.
Nā ʻāpana
Nā pae a me nā hoʻomanawanui
-
Mea Papahana
Kalsium Fluoride (CaF2)
-
ʻAno
Nā Leni Kaulua-Convex (DCX).
-
Papa kuhikuhi o ka Hoʻopololei (nd)
1.434 @ Nd:Yag 1.064 μm
-
Helu Abbe (Vd)
95.31
-
ʻO ka Coefficient Hoʻonui Thermal (CTE)
18.85 x 10-6/℃
-
Hoʻomanawanui anawaena
Pono: +0.00/-0.10mm | Kiekie Kiekie: +0.00/-0.03 mm
-
Hoʻomanawanui mānoanoa
Pono: +/-0.10 mm | Kiekie Kiekie: +/-0.03 mm
-
Hoʻomanawanui lōʻihi
+/-0.1%
-
ʻAno o ka ʻili
Pono: 80-50 | Kiʻekiʻe Precison: 60-40
-
Mana Ili Poepoe
3 λ/4
-
Kūlike ʻole o ka ʻili (Peak to Valley)
λ/4
-
Ke kikowaena
pololei:<3 arcmin | Kiekie Kiekie: <1 arcmin
-
Mākaʻikaʻi Aperture
90% o ke Anawaena
-
AR Lahui
2 - 5 μm
-
ʻO ka noʻonoʻo ʻana ma luna o ka laulā uhi (@ 0° AOI)
ʻO Ravg< 1.25%
-
Ka hoʻouna ʻana ma luna o ka laulā uhi (@ 0° AOI)
Helu > 95%
-
Ka lōʻihi o ka nalu
588 nm
-
Paepae Poino Laser
>5 J/cm2(100 ns, 1 Hz, @10.6μm)
Nā kaha kiʻi
♦ Ka pihi hoʻouna o 10 mm mānoanoa, pani ʻole CaF2 i uhi ʻole ʻia: hoʻouna kiʻekiʻe mai 0.18 µm a i 8 μm
♦ Ka pihi hoʻouna o ka CaF2 i uhi ʻia me AR i hoʻonui ʻia: Tavg > 95% ma luna o ka laulā 2 µm - 5 μm
