Hana maikaʻi nā lens plano-concave ke loaʻa ka mea a me ke kiʻi i nā ratio conjugate piha, ʻoi aku ka nui ma mua o 5:1 a i ʻole ka liʻiliʻi ma mua o 1:5. I kēia hihia, hiki ke hōʻemi i ka aberration spherical, coma, a me ka distortion. E like me nā lens plano-convex, no ka hoʻokō ʻana i ka pono kiʻekiʻe, pono ka ʻili curved e kū i ka mamao mea nui a i ʻole ka conjugate palena ʻole e hōʻemi i ka spherical aberration (koe wale nō ke hoʻohana ʻia me nā lasers ikaika nui kahi e hoʻohuli ʻia ai kēia e hoʻopau i ka hiki ke loaʻa kahi virtual. nānā).
Ua kūpono loa nā lens ZnSe no ka hoʻohana ʻana me nā laser mana kiʻekiʻe CO a i ʻole CO2. Eia hou, hiki iā lākou ke hāʻawi i ka hoʻouna ʻana ma ka ʻāpana ʻike ʻia e ʻae i ka hoʻohana ʻana i kahi kaola alignment ʻike ʻia, ʻoiai ʻoi aku ka nui o nā noʻonoʻo hope. Hāʻawi ʻo Paralight Optics iā Zinc Selenide (ZnSe) Plano-Concave (PCV) Lenses i loaʻa me kahi uhi AR broadband i hoʻopaʻa ʻia no ka 2 µm - 13 μm a i ʻole 4.5 - 7.5 μm a i ʻole 8 - 12 μm spectral range i waiho ʻia ma nā ʻaoʻao ʻelua. Hoʻemi nui kēia uhi ʻana i ka noʻonoʻo ʻana o ka ʻili kiʻekiʻe o ka substrate, e hāʻawi ana i ka hoʻoili awelika i ʻoi aku ma mua o 92% a i ʻole 97% ma waena o ka laulā uhi AR āpau. E nānā i nā kiʻi no kāu mau kuhikuhi.
Nā hiʻohiʻona:
Material:
Zinc Selenide (ZnSe)
Koho uhi:
ʻAʻole i uhi ʻia a i ʻole me nā ʻāpana Antireflection
Nā lōʻihi kiko:
Loaʻa mai -25.4 mm a -200 mm
Nā noi:
Pono no ka MIR Laser Applications Ma muli o ka Haʻahaʻa Absorption Coefficient
Nā kikoʻī maʻamau:
Kii Kuhikuhi no
Nānā Plano-Concave (PCV).
f: Ka lōʻihi kiko
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
Zinc Selenide (ZnSe)
-
ʻAno
Nānā Plano-Convex (PCV).
-
Index of Refraction
2.403 @ 10.6 μm
-
Helu Abbe (Vd)
ʻAʻole i wehewehe ʻia
-
ʻO ka Coefficient Hoʻonui Thermal (CTE)
7.6x10-6/ ℃ ma 273K
-
Hoʻomanawanui anawaena
Pono: +0.00/-0.10mm | Kiekie Kiekie: +0.00/-0.02mm
-
Hoʻomanawanui Mānoanoa waena
Pono: +/-0.10 mm | Pono Kiʻekiʻe: +/-0.02 mm
-
Hoʻomanawanui lōʻihi
+/-0.1%
-
ʻAno ʻili (Scratch-Dig)
Pono: 60-40 | Kūlana Kiʻekiʻe: 40-20
-
ʻO ka ʻili palahalaha (ʻaoʻao Plano)
λ/10
-
Mana Ili Poʻo (ʻaoʻao Convex)
3 λ/4
-
Kūlike ʻole o ka ʻili (Peak to Valley)
λ/4
-
Ke kikowaena
pololei:< 5 arcmin | ʻO ka pololei kiʻekiʻe:<30 arcsec
-
Mākaʻikaʻi Aperture
80% o ke anawaena
-
AR Lahui
2 µm - 13 μm / 4.5 - 7.5 μm / 8 - 12 μm
-
Ka hoʻouna ʻana ma luna o ka laulā uhi (@ 0° AOI)
Kaumaha > 92% / 97% / 97%
-
ʻO ka noʻonoʻo ʻana ma luna o ka laulā uhi (@ 0° AOI)
ʻO Ravg< 3.5%
-
Ka lōʻihi o ka nalu
10.6 µm
-
Paepae Poino Laser
5 J/cm2 (100 ns, 1 Hz, @10.6 µm)
Nā kaha kiʻi
♦ Ka pihi hoʻouna o 10 mm mānoanoa, pani ZnSe i uhi ʻole ʻia: hoʻouna kiʻekiʻe mai 0.16 µm a i 16 μm
♦ Ka pihi hoʻouna o 5mm AR-coated ZnSe pukaaniani: Tavg > 92% ma luna o ka 2 µm - 13 μm
♦ Ka pihi hoʻouna o 2.1 mm mānoanoa AR-coated ZnSe: Tavg > 97% ma luna o ka laulā 4.5 µm - 7.5 μm
♦ Ka pihi hoʻouna o 5 mm mānoanoa AR-coated ZnSe: Tavg > 97% ma luna o ka laulā 8 µm - 12 μm
Ka Pipi Hoʻouna o 5mm AR-kāuhi (2 µm - 13 μm) ZnSe Substrate
ʻO ka pihi hoʻouna o 2.1 mm mānoanoa AR-i uhi ʻia (4.5 µm - 7.5 μm) ZnSe Lens ma ke ʻano maʻamau.
