氟化钙窗片及透镜用于紫外和红外光谱。根据客户的要求定制CaF2窗片、CaF2透镜和楔角片以及直径220毫米以上的CaF2窗。
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
氟化钙的用途是什么?
由于其从250nm到7μm波段的高透过率，氟化钙通常用于光谱窗片和透镜；而其低吸收率、高损伤阈值使其成为准分子激光光学的理想选择。氟化钙的低折射率使其可以在无增透膜的情况下使用。氟化钙的诺普硬度为158.3。氟化钙(CaF2)窗由真空紫外级氟化钙制成，常用于低温冷却热成像系统中。
优恩立光电提供人工晶体的氟化钙成分，可在紫外和红外级。
参数:
材料: Calcium Fluoride single crystal ( UV or IR)
直径公差: +0.0, -0.1mm
厚度公差: ±0.1mm
通光孔径: >85%
平行度: 3 arc minute
光洁度: 60-40 scratch and dig
波前畸变: per 25mm @633mm
倒边: 保护性 ( <0.2mm x 45° )
镀膜: 可选
标准氟化钙窗片
Round Shape:
Φ4x0.5 Φ6x1 Φ8x1 Φ10x0.5 Φ10x0.5 Φ12.7x1 Φ15x1 Φ18x1 Φ20x2 Φ25x1 Φ25.4x1 Φ25.4x2
Φ25.4x3 Φ30x2 Φ30x3 Φ38.1x3
CaF2窗口注意事项：
（1）订购时请注明IR或UV。
（2） 可提供任何尺寸的定制CaF2窗户。 除圆形外，CaF2窗户呈方形，
可以使用三角形或其他多边形，单光学可以提供直径。 最大150mm
（3） 典型厚度为1mm 2mm，3mm，4mm，其他厚度为1.0mm至20.0mm。
（4）可根据要求提供更好的倒角。
（5）可提供定制镀膜
上一个 :
氟化镁窗片下一页 :
高精度紫外熔融石英窗片
镀增透膜蓝宝石窗片
蓝宝石窗片在高温下保持高强度，具有良好的热性能和卓越的透明度。它在高达1000°C的温度下对常见的酸和碱具有耐化学性，对于低于300°C的氟化氢也具有耐化学性。 这些特性促使其广泛用于需要在从真空紫外线到近红外范围内的进行光传输的恶劣环境中。
可视光/近红外镀膜的双凹透镜
双凹透镜是一种带有两个凹面的负焦距的光学透镜，常用于光束扩展、图像缩小或光投影等应用，也是扩大光学系统焦距的理想选择。优恩立公司可为您提供广泛用途的，带有多种涂层的双凹透镜。
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.
CZ Silicon is commonly used as substrate material for infrared reflectors and windows in the 1.5-8 micron region. The strong absorption band at 9 microns makes it unsuitable for CO2 laser transmission applications, but it is frequently used for laser mirrors because of its high thermal conductivity and low density. Application as window, lens in the 1.5 - 8 um region; Mirror for CO2 laser and spectrometer applications.
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
3、ZnS material:
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.）
4. ZnSe material
ZnSe is a preferred material for lenses, windows, output couplers and beam expanders for its low absorptivity at infrared wavelengths and its visible transmission. For high-power applications, it’s critical that the material bulk absorption and internal defect structure be carefully controlled, that minimum-damage polishing technology be employed, and the highest quality optical thin-film coatings are used. The material absorption is verified by CO2 laser vacuum calorimetry. Our quality assurance department provides testing and specific optics certification on request.
ZnSe is non-hygroscopic and chemically stable, unless treated with strong acids. It’s safe to use in most industrial field, and laboratory environments.
电话 : +86-591-86395085
电子邮件 : sales@uni-optics.com
