N-BK7 (CDGM H-K9L)
Lilense tsa Spherical tsa Foromo e Ntle ka ho Fetisisa
Kaha lilense li ntlafalitsoe bakeng sa boholo ba matheba, ho ea ka maikutlo a hore li ka fihlella ts'ebetso e lekanyelitsoeng ea diffraction bakeng sa li-diameter tse nyane tse kentsoeng. Bakeng sa ts'ebetso e ntle ka ho fetisisa lits'ebetsong tse tsepamisitsoeng, beha bokaholimo bo nang le radius e khuts'oane ea kobeha (ke hore, sebaka se kobehileng ho feta) ho ea mohloling o kopaneng.
Paralight Optics e fana ka lilense tsa N-BK7 (CDGM H-K9L) tsa Foromo e Ntle ka ho Fetisisa ea Spherical tse etselitsoeng ho fokotsa ho kheloha ha spherical ha li ntse li sebelisa libaka tse chitja ho etsa lense. Hangata li sebelisoa ho li-conjugates tse sa feleng lits'ebetsong tsa matla a phahameng moo li-doublets e seng khetho. Lilense li fumaneha li sa koaheloa kapa li-antireflection (AR) tsa rona tse behiloeng holim'a libaka tse peli ho fokotsa khanya e hlahang holim'a lense e 'ngoe le e' ngoe ho fokotsa boholo ba khanya e hlahang holim'a karolo ka 'ngoe ea lense. Liaparo tsena tsa AR li ntlafalitsoe bakeng sa mefuta e mengata ea 350 - 700 nm (VIS), 650 - 1050 nm (NIR), 1050 - 1700 nm (IR). Ho roala hona ho fokotsa haholo ponahalo e phahameng ea bokaholimo ba karolo e ka tlase ho 0.5% sebakeng se le seng, e leng se fanang ka phetisetso e phahameng ea karolelano ho pholletsa le mefuta eohle ea likhoele tsa AR. Sheba Kerafo e latelang bakeng sa litšupiso tsa hau.
Likaroloana:
Boitsebiso:
CDGM H-K9L kapa meetlo
Melemo:
Ts'ebetso e Ntle ka ho Fetisisa e Tsoang ho Spherical Singlet, Diffraction-Limited Performance at Small input Diameters
Lisebelisoa:
E etselitsoe li-Conjugates tse sa Feleng
Likhetho tsa ho Koahela:
E Fumaneha e sa Koaheloa ka AR Coatings Optimized for the wavelength Range of 350 - 700 nm (VIS), 650 - 1050 nm (NIR), 1050 - 1700 nm (IR)
Bolelele ba Tsepamiso
E fumaneha ho tloha ho 4 ho isa ho 2500 mm
Lisebelisoa:
E loketse Likopo tse Matla a Phahameng
Litlhaloso Tse Tloaelehileng:
Reference Drawing bakeng sa
Mokhoa o Molemo ka ho Fetisisa oa Lense ea Spherical
f: Bolelele ba Tsepamiso
fb: Back Focal Length
R: Radius ea Curvature
tc: Botenya ba Bohareng
te: Botenya ba moeli
H”: Sefofane se ka Morao
Tlhokomeliso: Bolelele ba ho tsepamisa maikutlo bo lekantsoe ho tloha sefofaneng se ka morao, se sa hlokeng hore se tsamaisane le botenya ba moeli.
Mekhahlelo
Ranges & Tolerances
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Substrate Material
N-BK7 (CDGM H-K9L)
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Mofuta
Mokhoa o Molemo ka ho Fetisisa oa Lense ea Spherical
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Index of Refraction (nd)
1.5168 ka bolelele bo hlophisitsoeng
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Nomoro ea Abbe (Vd)
64.20
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Thermal Expansion Coefficient (CTE)
7.1X10-6/K
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Mamello ea Diameter
Precison: +0.00/-0.10mm | Ho nepahala ho Phahameng: +0.00/-0.02mm
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Mamello ea Botenya ba Setsi
Precison: +/-0.10 limilimithara | Ho nepahala ho Phahameng: +/-0.02 mm
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Mamello ea Bolelele ba Tsepamiso
+/- 1%
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Boleng ba Bokaholimo (Scratch-Dig)
Boemo: 60-40 | Ho nepahala ho Phahameng: 40-20
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Spherical Surface Power (Lehlakore la Convex)
3 λ/4
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Irregularity ea holim'a metsi (Peak to Valley)
λ/4
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Setsi
Precison:<3 arcmin | Ho nepahala ho Phahameng:<30 arcsec
-
Aperture e Hlakileng
≥ 90% ea Diameter
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AR Coating Range
Sheba tlhaloso e ka holimo
-
Phetiso ea Coating Range (@ 0° AOI)
Tavg > 92% / 97% / 97%
-
Ponahatso holim'a Mekhahlelo ea Coating (@ 0° AOI)
Ravg<0.25%
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Moqapi oa Wavelength
587.6 nm
-
Senyako sa Tšenyo ea Laser (Se huleloa)
7.5 J/cm2(10ns, 10Hz,@532nm)
Kerafo
Kerafo ena ea theory e bonts'a ponahatso ea liperesente tsa coating ea AR e le ts'ebetso ea wavelength (e ntlafalitsoeng bakeng sa 400 - 700 nm) bakeng sa litšupiso.
Reflectance Curve ea Broadband AR-coated (350 - 700 nm) NBK-7
Reflectance Curve ea Broadband AR-coated (650 - 1050 nm) NBK-7
