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  • Hastings-Mounted-Positive-Achromatic-Lenses-1

Hastings e kentsoeng
Achromatic Triplets

Lilense tsa Achromatic ke khetho e ntle bakeng sa ho batla taolo e phahameng ea taolo, kaha li fana ka ts'ebetso e ntle haholo ho feta li-singles tse chitja. Li-doublet tse entsoeng ka samente tsa achromatic li lekane bakeng sa lits'ebetso tse ngata ho li-conjugate tse sa feleng, 'me lipara tse peli tse entsoeng ka samente li loketse li-conjugate tse fokolang. Leha ho le joalo, li-triplets tsa Achromatic li fana ka ts'ebetso e betere ho feta li-doublets tsa achromatic, ha e le hantle, achromatic triplet ke lense e bonolo ka ho fetisisa e lokisang liphapang tsohle tsa mantlha tsa chromatic le ho fana ka ts'ebetso e ntle ea axis le off-axis.

Li-achromatic triplets li na le karolo e bohareng ea moqhaka oa index e tlase e samenteng lipakeng tsa likarolo tse peli tse ts'oanang tsa lejoe le phahameng la bokantle. Li-triplets tsena li khona ho lokisa li-axial le tsa morao-rao tsa chromatic aberration, 'me moralo oa bona oa symmetric o fana ka ts'ebetso e ntlafetseng e amanang le li-doublet tse entsoeng ka samente.

Hastings achromatic triplets e etselitsoe ho fana ka karo-karolelano e sa feleng ea conjugate mme e thusa ho tsepamisa maballo a kopantsoeng le ho holisa. Ho fapana, li-triplets tsa Steinheil achromatic li etselitsoe ho fana ka tekanyo e lekanyelitsoeng ea conjugate le setšoantšo sa 1:1. Paralight Optics e fana ka li-achromatic triplets tsa Steinheil le Hastings tse nang le antireflection coating bakeng sa 400-700 nm wavelength range, ka kopo sheba graph e latelang bakeng sa litšupiso tsa hau.

letšoao-radio

Likaroloana:

AR Coating:

AR E apesitsoe bakeng sa 400 - 700 nm Range (Ravg<0.5%)

Melemo:

E Loketse bakeng sa Matšeliso a Liphetoho tsa Lateral le Axial Chromatic

Ts'ebetso ea Optical:

Ts'ebetso e ntle ea On-Axis le Off-Axis

Lisebelisoa:

E ntlafalitsoe bakeng sa Infinite Conjugate Ratios

letšoao-tšobotsi

Litlhaloso Tse Tloaelehileng:

pro-related-ico

Reference Drawing bakeng sa

Lense ea Achromatic ea Hastings

f: Bolelele ba Tsepamiso
WD: Sebaka sa ho sebetsa
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 lumellaneng le sefofane sefe kapa sefe sa 'mele ka har'a lense.

 

Mekhahlelo

Ranges & Tolerances

  • Substrate Material

    Mefuta ea Khalase ea Crown le Flint

  • Mofuta

    Hastings achromatic triplet

  • Diameter ea lense

    6 - 25 limilimithara

  • Mamello ea Diameter ea Lense

    +0.00/-0.10 limilimithara

  • Mamello ea Botenya ba Setsi

    +/- 0.2 limilimithara

  • Mamello ea Bolelele ba Tsepamiso

    +/- 2%

  • Boleng ba Bokaholimo (Mongoa - Cheka)

    60-40

  • Irregularity ea holim'a metsi (Peak to Valley)

    λ/2 ho 633 nm

  • Setsi

    <3 arcmin

  • Aperture e Hlakileng

    ≥ 90% ea Diameter

  • AR Coating

    1/4 wave MgF2@550nm

  • Moqapi oa Wavelengths

    587.6 nm

litšoantšo-img

Kerafo

Kerafo ena ea theory e bonts'a ponahatso ea liperesente tsa AR coating e le ts'ebetso ea wavelength bakeng sa litšupiso.
♦ Reflectance Curve ea Achromatic Triplet VIS AR Coating

Lihlahisoa tse Amanang

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