I-Calcium Fluoride (CaF2)
Amalensi e-Plano-Concave

Amalensi e-Plano-concave angamalensi anegethivu ajiyile emaphethelweni kunamaphakathi, lapho ukukhanya kudlula kuwo, ayahluka futhi indawo okugxilwe kuyo ingokoqobo.Ubude bazo bokugxila bunegethivu, kanye ne-radius yokugoba kwezindawo ezigobile.Uma kubhekwa ukujika kwawo okuyindilinga okunegethivu, amalensi e-plano-concave angasetshenziswa ukuze kulinganiswe ukuphambuka okuyindilinga okubangelwa amanye amalensi kusistimu yokubona.Amalensi e-Plano-concave awusizo ekuhlukaniseni i-collimated beam kanye nokuhlanganisa i-convergent beam, asetshenziselwa ukwandisa imishayo yokukhanya nokwandisa ubude bokugxila ezinhlelweni ezikhona zokubona.Lawa ma-lens anegethivu avame ukusetshenziswa kuma-telescopes, amakhamera, ama-laser noma ezingilazini ukuze asize amasistimu okukhulisa ahlangane kakhudlwana.

Amalensi e-Plano-concave asebenza kahle uma into nesithombe kuku-absolute conjugate ratios, okukhulu kuno-5:1 noma ngaphansi kuka-1:5.Kulokhu, kungenzeka ukunciphisa ukuphuma okuyindilinga, i-coma, nokuhlanekezela.Ngokufanayo namalensi e-plano-convex, ukuze kuzuzwe ukusebenza kahle okuphezulu indawo egobile kufanele ibhekane nebanga lento enkulu kunazo zonke noma i-conjugate engapheli ukuze kuncishiswe ukuphuma okuyindilinga (ngaphandle uma isetshenziswa ngamalaser anamandla amakhulu lapho lokhu kufanele kubuyiselwe emuva ukuze kuqedwe ukuba nokwenzeka kwe-virtual aberration. gxila).

Ngenxa yokudluliswa kwayo okuphezulu ukusuka ku-0.18 µm kuya ku-8.0 μm, i-CaF2 ibonisa inkomba ephansi ye-refractive ehluka ukusuka ku-1.35 ukuya ku-1.51 futhi ivamise ukusetshenziselwa izinhlelo zokusebenza ezidinga ukudluliswa okuphezulu kububanzi be-infrared kanye ne-ultraviolet spectral, inenkomba ye-refractive engu-1.4024 ku-1.4024 ku-1. .I-calcium fluoride nayo ayisebenzi ngamakhemikhali futhi inikeza ubulukhuni obuphakeme uma iqhathaniswa ne-barium fluoride yayo, kanye nabazala bayo be-magnesium fluoride.I-Paralight Optics inikeza i-Calcium Fluoride (CaF2) amalensi e-plano-concave anama-antireflection ebangeni le-wavelength elingu-2 µm ukuya ku-5 µm elifakwe kuzo zombili izindawo.Lokhu kunamathela kunciphisa kakhulu ukubonakala okungaphezulu kwe-substrate, kuveza ukudluliswa okumaphakathi okungaphezu kuka-97% kulo lonke uhla lwe-AR.Hlola amagrafu alandelayo ukuze uthole izithenjwa zakho.

Izici:

Okubalulekile:

I-Calcium Fluoride (CaF2)

Izinketho zokuhlanganisa:

Engagqotshiwe noma ene-Antireflection Coatings

Ubude bokugxila:

Itholakala kusuka -18 kuya -50 mm

Izicelo:

Ilungele ukusetshenziswa kuzicelo ze-Excimer Laser, ku-Spectroscopy kanye ne-Cooled Thermal Imaging

Imininingwane Ejwayelekile:

pro-ehlobene-ico — Umdwebo Wezithenjwa we

Ilensi yePlano-concave (PCV).

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-Calcium Fluoride (CaF2)
Uhlobo

Ilensi yePlano-Concave (PCV)
Inkomba ye-Refraction (nd)

1.428 @ Nd:Yag 1.064 μm
Inombolo ye-Abbe (Vd)

95.31
I-Thermal Expansion Coefficient (CTE)

18.85 x 10^-6/℃
Ukubekezelela Ububanzi

Ukunemba: +0.00/-0.10mm |Ukunemba okuphezulu: +0.00/-0.03 mm
Ukubekezelela Ukuqina Kwesikhungo

Ukunemba: +/-0.10 mm |Ukunemba okuphezulu: +/-0.03 mm
Ukubekezelela Ubude obugxile

+/- 2%
Ikhwalithi Yobuso (Scratch-Dig)

Isilinganiso: 80-50 |Ukunemba okuphezulu: 60-40
I-Surface Flatness (I-Plano Side)

λ/4
Amandla Obuso Obuyindilinga (Convex Side)

3 l/2
I-Surface Irregularity (Peak to Valley)

λ/2
Isikhungo

I-Precison:<3 arcmin |Ukunemba okuphezulu:< 1 arcmin
Imbobo ecacile

90% we-Diameter
I-AR Coating Range

2 - 5 μm
Ukudluliswa kwe-Coating Range (@ 0° AOI)

I-Tavg > 97%
Ukubukeka phezu kobubanzi bokuhlanganisa (@ 0° AOI)

I-Ravg< 1.25%
Design Wavelength

awu 588nm