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12.7mm Optical Glass Filters Birefringent Lyot Filter For Solar Astronomy

Basic Properties
Place of Origin: Wuhan, China
Brand Name: STAR OPTIC
Certification: RoHS, ISO9001
Model Number: LYF
Trading Properties
Minimum Order Quantity: Negotiable
Price: Negotiable
Payment Terms: T/T, Western Union, Paypal
Supply Ability: 50000pcs/Month
Product Summary
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, particularl...

Product Details

Highlight:

12.7mm Optical Glass Filters

,

Birefringent Lyot Filter 12.7mm

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Optical Glass Filters Birefringent

Product Name: Lyot Filter/Birefringent Filter
Material: Birefringent Crystals Crystal Quartz, MgF2
Optical Axis: Parallel To The Surface Plane
Applications: Solar Astronomy
Diameter: 12.7mm, 25.4mm
Surface: Uncoated, AR Coatings Available
Product Description

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):

Material Crystal Quartz, MgF2
Dimension Tolerance +0/-0.2mm
Thickness Tolerance ±0.005mm
Surface Quality 20/10 scratch and dig
Clear Aperture >90%
Wavefront Distortion <λ/8@632.8nm
Parallelism <5 arc seconds
Thickness T=0.5mm, 1mm, 1.5mm, 2.0mm
Coating Uncoated, Available

 
 
 
Standard Products Of Lyot Filter (Birefringent Filter):

Part Number Material

Dimension
(mm)

Thickness
(mm)

LYF12-0.5 Crystal Quartz 12.7 0.5
LYF12-1 Crystal Quartz 12.7 1
LYF12-2 Crystal Quartz 12.7 2
LYF12-4 Crystal Quartz 12.7 4
LYF25-0.5 Crystal Quartz 25.4 0.5
LYF25-1 Crystal Quartz 25.4 1
LYF25-2 Crystal Quartz 25.4 2
LYF25-4 Crystal Quartz 25.4 4

 

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