Calcium Fluoride (CaF2)
Lenses Plano-Concave

Lenses Plano-concave waa muraayado taban kuwaas oo ka dhumuc weyn cidhifka marka loo eego dhexda, marka iftiinku dhex maro iyaga, way kala duwan yihiin oo barta diiradda la saarayaa waa mid muuqaal ah.Dhererkoodu waa taban, iyo sidoo kale radius of curvature ee sagxadaha qaloocan.Marka la eego leexintooda goobeed taban, lenses-concave lenses ayaa la shaqaaleysiin karaa si loo dheellitiro aberrations-ka wareegsan ee ay sababaan muraayadaha kale ee nidaamka indhaha.Lenses-concave lenses ayaa faa'iido u leh kala-duwanaanshaha laydhka isku-dhafka ah iyo isku-dhafka laydhka isku-dhafan, waxaa loo isticmaalaa in lagu ballaariyo iftiinka iftiinka iyo in la kordhiyo dhererka foorarka ee nidaamyada hadda jira.Muraayadahan taban waxaa badanaa lagu isticmaalaa telescopes, kamaradaha, leysarka ama muraayadaha si ay u caawiyaan nidaamyada weyneynta inay noqdaan kuwo is haysta.

Lenses-concave lenses ayaa si fiican u shaqeeya marka shayga iyo sawirku ay ku jiraan saamiyo isku xidhan oo dhammaystiran, oo ka weyn 5:1 ama ka yar 1:5.Xaaladdan oo kale, waxaa suurtogal ah in la yareeyo aberration sppherical, koomada, iyo qallooca.Si la mid ah muraayadaha loo yaqaan 'plano-convex lenses', si loo gaaro waxtarka ugu sarreeya, dusha qalooca waa inuu wajaho masaafada ugu weyn ee shayga ama isku-xidhka aan dhammaadka lahayn si loo yareeyo isbeddelka wareega (marka laga reebo marka loo isticmaalo leysarka tamarta sare leh halkaasoo tani ay tahay in la beddelo si loo baabi'iyo suurtagalnimada muuqaal muuqaal ah. diiradda).

Sababtoo ah gudbintiisa sare ee 0.18 µm ilaa 8.0 μm, CaF2 waxay soo bandhigaysaa index refractive hooseeya oo ku kala duwan 1.35 ilaa 1.51 waxaana badanaa loo isticmaalaa codsiyada u baahan gudbinta sare ee kala duwanaanta infrared iyo ultraviolet, waxay leedahay index refractive of 1.4064 at 1.428. .Calcium fluoride sidoo kale waa si cadaalad ah kiimiko ahaan aan firfircoonayn wuxuuna bixiyaa qallafsanaan sare marka loo eego barium fluoride, iyo ina-adeerayaasha magnesium fluoride.Paralight Optics waxay bixisaa Calcium Fluoride (CaF2) lenses plano-concave oo leh dahaarka lidka-milicsiga ee 2 µm ilaa 5 µm kala duwanaanshaha hirarka dhererka ee lagu kaydiyay labada dusha.Dahaarkani wuxuu si weyn u yareynayaa milicsiga dusha sare ee substrate-ka, wuxuu soo saaraa gudbin celcelis ka badan 97% dhammaan noocyada daahan AR.Ka eeg jaantusyada soo socda tixraacyadaada.

Astaamaha:

Qalab:

Calcium Fluoride (CaF2)

Xulashada dahaarka:

Dahaarka aan la daboolin ama leh Dahaarka Ka-hortagga Milicsiga

Dhererka Focal:

Waxaa laga heli karaa -18 ilaa -50 mm

Codsiyada:

Ku Haboon in loo isticmaalo Codsiyada Laser Excimer, ee Spectroscopy iyo Sawirka Kulaylka Qabow

Tilmaamaha Guud:

pro-xiriirka-ico — Tixraaca Sawirka

Muraayada Plano-concave (PCV).

f: Focal Length
f_bLength Focal Back
R: Radius of Curvature
t_c: Dhumucda dhexe
t_e: Dhumucda cidhifka
H”: Dhabarka Diyaaradda Maamulaha

Fiiro gaar ah: Dhererka focal waxaa laga go'aamiyaa diyaaradda maamulaha dambe, taas oo aan daruuri ahayn in la jaanqaado dhumucda cidhifka.

Halbeegyada

Heerarka & Dulqaadyada

Qalabka Substrate-ka

Calcium Fluoride (CaF2)
Nooca

Lens-ka Plano-Concave (PCV)
Tusmada Dib-u-soo-celinta (nd)

1.428 @ Nd: Yag 1.064 μm
Abbe Number (Vd)

95.31
Isku xidhka Balaadhinta kulaylka (CTE)

18.85 x 10^-6/℃
Dulqaadka dhexroorka

Sax: +0.00/-0.10mm |Saxnaanta Sare: +0.00/-0.03 mm
Dulqaadashada Dhumucda Xarunta

Saxsanaanta: +/- 0.10 mm |Saxnaanta Sare: +/- 0.03 mm
Dulqaadka Focal Length

+/- 2%
Tayada dusha sare (xoq-qod)

Sax: 80-50 |Saxnimada Sare: 60-40
Dhulka Dusha sare (Dhinaca Plano)

λ/4
Awoodda dusha sare ee wareegsan (Side Convex)

3 λ/2
Habacsanaanta Dusha (Ugu Sarreysa ee Dooxada)

λ/2
Xarunta

Sax ah:<3 arcmin |Saxnaanta Sare:< 1 arcmin
Nadiifi Aperture

90% dhexroorka
Range Dahaarka AR

2-5 μm
Gudbinta Xadka Dahaarka (@ 0° AOI)

Tavg > 97%
Milicsiga Dusha Dahaarka (@ 0° AOI)

Ravg<1.25%
Naqshad dhererka hirarka

588 nm