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LiF Lithium Flouride Crystals Excellent Transmittance In VUV Region For Prisms Lenses

Basic Information
Place of Origin: China
Brand Name: CRYLINK
Certification: Iso9001
Model Number: CRYLINK-LiF Crystal
Minimum Order Quantity: 1 Pieces
Price: negotiation
Packaging Details: Carton
Delivery Time: 3-4 weeks
Payment Terms: TT
Supply Ability: 100 pieces /month
Detail Information
Name: LiF Optical Crystals Density, G/cm3: 2.64
Melting Point,℃: 870 Transmission Range, M: 0.12-6
High Light:

LiF Lithium Flouride Crystals

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LiF Optical Crystals

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2.64g/cm3 LiF Crystals


Product Description

Product Details

Description

LiF (Lithium Flouride) crystals shows excellent transmittance in the VUV region. It is used for windows, prisms, and lenses in the visible and infrared in 0.104 m - 7 m. LiF crystalis sensitive to thermal shock and would be attacked by atmospheric moisture at 400°C. In addition irradiation produces color centers.

Modest precautions should be taken against moisture and high energy radiation damage. Besides LiF is softens at 600°C and is slightly plastic that can be bent into radius plates. The material can be cleaved along (100) and less commonly (110). Although the optical characteristics are good the structure is not perfect and cleavage is difficult.

High quality LiF is usually grown by modified Bridgman technique.

Lithium Flouride shows good optical properites. It can be used for windows, prisms and lenses in the vacuum UV,visibel and infrared. Because of its paricular lattice structure, LiF can also be used as X-ray diffraction devices.


Features:

  1. Excellent Transmission from 110nm to 7m;

  2. Optically isotropic, middle hard;

  3. Hygroscopic, unsolvable in water;

  4. Sensitive to thermal shock,Cleaved along (100);

Specification

Physical Properties

Crystal type

cubic

Lattice constant,

a=4.026

Density, g/cm3

2.64

Melting point,℃

870

Refractive index @ 1.0m

n=1.387

Transmission range, m

0.12-6

Specifications for LiF windows

Spectal range

UV, VIS, IR

Surface quality

60-40 S & D

Clear aperture

90% of the diameter

diameter tolerance

+0, -0.1 mm

Thickness tolerance

±0.1

Surface flatness

/4 @ 633 nm

parallelism

<3 arcmin

Polishing Specification for Optical GradeⅠ

Orientation Tolerence

< 1°

Thickness/Diameter Tolerance

±0.10 mm

Surface Flatness

<(-2)@632nm

Wavefront Distortion

<(2-4)@632nm

Surface Quality

80/50

Parallel

10

Perpendicular

60

Clear Aperture

>90%

Chammfer

<0.2×45°

Polishing Specification for Optical Grade Ⅱ

Orientation Tolerence

< 0.5°

Thickness/Diameter Tolerance

±0.10 mm

Surface Flatness

<(/2-/4)@632nm

Wavefront Distortion

<(1-2)@632nm

Surface Quality

60/40

Parallel

1

Perpendicular

30

Clear Aperture

>90%

Chammfer

<0.2×45°

Contact Details
june

Phone Number : +8618699681379