12.7mm Optical Glass Filters Birefringent Lyot Filter For Solar Astronomy

Brand Name:STAR OPTIC
Certification:RoHS, ISO9001
Model Number:LYF
Minimum Order Quantity:Negotiable
Delivery Time:Negotiable
Payment Terms:T/T, Western Union, Paypal
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Location: Wuhan China
Address: 4th floor, building 9, Optics Valley New Dynamic, 5th Hi-Tech road, East lake Hi-Tech Zone, Wuhan, China
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Lyot Filter, Birefringent Filter, Birefringent Tuners

Overview:

A Lyot Filter (Birefringent Filter), named for its inventor Bernard Lyot, is a type of optical filter that uses birefringence to produce a narrow passband of transmitted wavelengths. Lyot filters are often used in astronomy, particularly for solar astronomy.


Lyot filters (Birefringent tuners) for wavelength tuning of lasers are made of crystal quartz (Transmission ranges: 200 nm-2700 nm) or MgF2 (Transmission ranges: 150 nm-6000 nm) and their optical axis can be parallel to the surface plane or at customized angle.


A Lyot filter is made from one or more birefringent plates (usually quartz), with (in multi-plate filters) each plate being half the thickness of the previous one. Standard thicknesses ranging from 0.5 mm to 10 mm and diameter of 12.7mm(1/2 inch) and 25.4 mm (1 inch) are available from stock. Star Optic offers both uncoated and AR-coated birefringent filters. These can be used at Brewster angle Lyot filter configuration (no Fresnel reflection losses), or in a customer-specific design.




General Specifications Of Lyot Filter (Birefringent Filter):

MaterialCrystal Quartz, MgF2
Dimension Tolerance+0/-0.2mm
Thickness Tolerance±0.005mm
Surface Quality20/10 scratch and dig
Clear Aperture>90%
Wavefront Distortion<λ/8@632.8nm
Parallelism<5 arc seconds
ThicknessT=0.5mm, 1mm, 1.5mm, 2.0mm
CoatingUncoated, Available




Standard Products Of Lyot Filter (Birefringent Filter):

Part NumberMaterial

Dimension
(mm)

Thickness
(mm)

LYF12-0.5Crystal Quartz12.70.5
LYF12-1Crystal Quartz12.71
LYF12-2Crystal Quartz12.72
LYF12-4Crystal Quartz12.74
LYF25-0.5Crystal Quartz25.40.5
LYF25-1Crystal Quartz25.41
LYF25-2Crystal Quartz25.42
LYF25-4Crystal Quartz25.44

China 12.7mm  Optical Glass Filters Birefringent Lyot Filter For Solar Astronomy supplier

12.7mm Optical Glass Filters Birefringent Lyot Filter For Solar Astronomy

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