I-Zinc Selenide (ZnSe)
Amalensi e-Meniscus amahle

Amalensi e-meniscus asetshenziswa ngokuyinhloko ukugxila kumasayizi amabala amancane noma izinhlelo zokusebenza zokuhlanganisa.Bahlinzeka ngokusebenza okuphezulu kakhulu ngokunciphisa kakhulu ukuphambuka okuyindilinga.Amalensi e-meniscus (i-convex-concave), ahlanganisa indawo eyi-convex nendawo eqondile futhi aminyene phakathi nendawo kunasemiphethweni futhi abangele ukuthi imisebe yokukhanya ihlangane, aklanyelwe ukunciphisa ukuphuma okuyindilinga kumasistimu okubona.Uma isetshenziselwa ukugxilisa ibhilomu ehlanganisiwe, uhlangothi lwe-convex lwelensi kufanele lubhekane nomthombo ukuze kuncishiswe ukuphuma okuyindilinga.Uma isetshenziswa ihlanganiswe nenye ilensi, ilensi ye-meniscus ephozithivu izofinyeza ubude bokugxila futhi ikhulise indawo yokuvula izinombolo (NA) yesistimu ngaphandle kokwethula ukujika okubalulekile okuyindilinga.Njengoba ilensi ye-meniscus enhle inobubanzi obukhulu bokugoba ohlangothini lwe-concave lwelensi kunasohlangothini lwe-convex, izithombe zangempela zingakhiwa.

Amalensi e-ZnSe afaneleka kahle kakhulu ukusetshenziswa namalaser anamandla e-CO2.Ngenxa yenkomba ephezulu ye-refractive ye-ZnSe, singanikeza idizayini yefomu eliyisiyingi elingcono kakhulu le-ZnSe, okuwumklamo omuhle we-meniscus.Lawa ma-lens adala ukuchezuka okuncane, osayizi bamabala, namaphutha angaphambili kwamagagasi aqathaniswa namalensi amafomu angcono kakhulu akhiwe ezinye izinto.

I-Paralight Optics inikezela ngamalensi e-Zinc Selenide (ZnSe) Positive Meniscus atholakalayo nge-broadband AR coating elungiselelwe ibanga le-spectral elingu-8 µm kuya ku-12 μm elifakwe kuzo zombili izindawo.Lokhu kunamathela kunciphisa kakhulu ukubukeka okuphezulu kwendawo engaphansi, kunikeze ukudluliswa okumaphakathi okungaphezu kuka-97% kulo lonke uhla lwe-AR.

Izici:

Okubalulekile:

I-Zinc Selenide (ZnSe)

Inketho yokuhlanganisa:

Okungagqokile noma Okune-Antireflection Coatings ye-8 - 12 μm

Ubude bokugxila:

Itholakala kusuka ku-15 kuya ku-200 mm

Isicelo:

Ukwandisa i-NA yoHlelo Lokubona

Imininingwane Ejwayelekile:

pro-ehlobene-ico — Umdwebo Wezithenjwa we

I-Meniscus Lens Enhle

f: Ubude bokugxila
f_b: Ubude beFocal Emuva
R: I-Radius of Curvature
t_c: Ubukhulu obuphakathi
t_e: Ukujiya komphetho
H”: Emuva Indiza Eyinhloko

Qaphela: Ubude bokugxila bunqunywa kusukela endizeni eyinhloko engemuva, engahambelani nogqinsi lomkhawulo.

Amapharamitha

Amabanga & Ukubekezelelana

I-Substrate Material

I-Laser-Grade Zinc Selenide (ZnSe)
Uhlobo

I-Meniscus Lens Enhle
Inkomba ye-Refraction (nd)

2.403
Inombolo ye-Abbe (Vd)

Akuchazwanga
I-Thermal Expansion Coefficient (CTE)

7.1 x 10^-6/℃
Ukubekezelela Ububanzi

Ukunemba: +0.00/-0.10mm |Ukunemba okuphezulu: +0.00/-0.02mm
Ukubekezelela Ukuqina Kwesikhungo

Ukunemba: +/-0.10 mm |Ukunemba okuphezulu: +/-0.02 mm
Ukubekezelela Ubude obugxile

+/- 1%
Ikhwalithi Yobuso (Scratch-Dig)

Isilinganiso: 60-40 |Ukunemba okuphezulu: 40-20
Amandla Obuso Obuyindilinga

3 l/4
I-Surface Irregularity (Peak to Valley)

λ/4
Isikhungo

I-Precison:< 3 arcmin |Ukunemba okuphezulu:< 30 arcsec
Imbobo ecacile

80% we-Diameter
I-AR Coating Range

8 - 12 μm
Ukubukeka phezu kobubanzi bokuhlanganisa (@ 0° AOI)

I-Ravg< 1.0%, Rabs< 2.0%
Ukudluliswa kwe-Coating Range (@ 0° AOI)

I-Tavg > 97%, Amathebhu > 92%
Design Wavelength

10.6 μm
I-Laser Damage Threshold (Pulsed)

5j/cm²(100 ns, 1 Hz, @10.6μm)