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N-BK7角锥棱镜

角锥棱镜又称反射它有三个相互垂直的表面和一个斜边面。通过斜边进入的光依次被三个表面反射,并通过平行于入射光束的斜边面出现,而不考虑入射光束的方向由于其特殊的性能,常被用于距离测量、光学信号处理和激光等领域。

  • 产品产地:

    中国
  • 航运港口:

    中国福州
  • 交付周期:

    四周
  • 付款:

    银行电汇, 西联付款
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  • 描述


1. 什么是角锥棱镜?


角锥棱镜有三个相互垂直的表面和一个斜边面,它的工作原理是全内反射。一束进入有效通光孔径的光束由三个表面反射,通过入射面平行离开。在接受角范围内,这一特性与反射器的方向无关。如果超过了全内反射的接受角,或者反射表面不能保持足够的清洁,可以在反射表面上涂上金属膜或介质膜。


2. 福州优恩立光电可以用什么材料来制作角锥棱镜?


N-BK7、紫外熔融石英或其他光学玻璃。


3. 福州优恩立光电的角锥棱镜制造能力如何?加工精度上限是多少?


 


corner cube prisms  corner cube prisms


参数

标准

加工上限

尺寸公差

+0/-0.2mm

+0/-0.05mm

通光孔径

>80%

>85%

角精度 (180°)

+/-30’’

+/-1’’

面形

λ/4@632.8nm

λ/8@632.8nm

光洁度

60-40

10-5




4. 我们标准的尺寸是多少?


Diameter(mm)

Height(mm)

Deviation( 180°)

Φ4

3.0

3"-10"

Φ8

8.0

3"-10"

Φ10

7.5

3"-10"

Φ12.7

10.2

3"-10"

Φ15.0

11.4

3"-10"

Φ25.4

19.1

3"-10"

Φ38.1

29.2

3"-10"

Φ42

34.9

3"-10"

Φ50

37.5

3"-10"

Φ50.8

38.1

3"-10"

Φ62.23

47.9

3"-10"

Φ62.5

48.0

3"-10"

Φ64

48.0

3"-10"

Φ65

39.1

3"-10"

Φ70

50.0

3"-10"

Φ72.52

52.3

3"-10"




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IR Optics material
红外材料

1.  Germanium (Ge)


Germanium (Ge) is the preferred lens and window material for high performance infrared imaging systems in the 8–12 μm wavelength band. Its high refractive index makes Ge ideal for low power imaging systems because of minimum surface curvature. Chromatic aberration is small, often eliminating the need for correction.

 

Crystallographic properties
Syngony Cubic
Crystal Form Poly or Single Crystal
Lattice Constant 5.66
Cleavability <111>, non-perfect
Molecular Weight 72.6
Physical properties
Density, at 20 °C 5.33
Hardness, Mohs 6.3
Dielectric Constant for 9.37 × 109 Hz at 300 K 16.6
Melting 937
Thermal Conductivity, W/m·K at at 293 K 59
Thermal Expansion, 1/K at 298 K 6.1 × 10-6
Specific Heat Capacity, J/(kgK) at 273-373 K 0.074
Bandgap, eV 0.67
Knoop Hardness, kg/mm2 800
Youngs Modulus, Gpa 102.66
Shear Modulus, GPa 67.04
Bulk Modulus, GPa 77.86
Debye Temperature, K 370
Poissons Ratio 0.278
Elastic Coefficient C11=129, C12=48.3, C44=67.1
Apparent Elastic Limit 89.6 MPa (13000psi)
Chemical properties
Solubility in water None
Solubility in acids Soluble
Molecular Weight 72.59

2. Silicon (Si) 


Silicon (Si) is grown by Czochralski pulling techniques (CZ) and contains some oxygen that causes an absorption band at 9 microns.To avoid this, material can be prepared by a Float-Zone (FZ) process. Optical silicon is generally lightly doped (5 to 40 ohm cm) for best transmission above 10 microns, and doping is usually boron (P-type) and phosphorus (N-type). After doping silicon has a further pass band: 30 to 100 microns which is effective only in very high resistivity uncompensated material.
 
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Crystallographic properties
Syngony Cubic
Lattice Constant, A 5.43
Physical properties
Density 2.33g/cm3
Hardness, Mohs 7
Dielectric Constant for 9.37 x 109 Hz 13
Melting point, оС 1414
Thermal Conductivity, W/m·K at 313 K 163
Thermal Expansion, 1/K at 293 K 2.6x10-6
Specific Heat Capacity, J/(kg°C) 712.8
Bandgap, eV 1.1
Knoop Hardness, kg/mm2 1100
Youngs Modulus, Gpa 130.91
Shear Modulus, GPan 79.92
Bulk Modulus, GPa 101.97
Debye Temperature, K 640
Poissons Ratio 0.28
Chemical properties
Solubility in water None
Molecular Weight 28.09

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ZnS MultiSpectral Under intense heat and pressure, defects within the crystalline lattice are virtually eliminated, leaving a water-clear material with minimal scatter and high transmission characteristics from 0.4 to 12 microns. This material is particularly well suited for high-performance common aperture systems that must perform across a broad wavelength spectrum.

Specifications:

Material: ZnS MultiSpectral
Diameter Tolerance: --------------------- +0.0, -0.1mm
Thickness Tolerance: -------------------- ±0.1mm
Clear Aperture: ---------------------------->85%
Parallelism: -----------------------------------3 arc minute
Surface Quality: ----------------------------80-50 scratch and dig
Wavefront Distortion: -------------------- λ /2 per 25mm @633mm
Bevel: -----------------------------------------Protective  (<0.2mm x 45° )
Coating: -------------------------------------- Optional (Uncoated, AR Coating, etc.)


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