平凹柱面镜为合成光束扩散及其广泛应用提供了单轴负成像。如果需要柱面镜凹面作为反射镜，这些透镜可用作镜坯。
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
Uni Optics平凹圆柱面镜在垂直方向上具有凹面曲率，在水平方向上无曲率。它们边缘呈圆形，因此在光学系统中很容易与其他元件结合。
1. 为什么使用柱面镜？
柱面镜通常用于聚焦、凝聚或扩展入射光。柱面镜有一个柱面，使光聚焦在一个尺寸或轴上。
2. 使用圆柱面镜可以纠正眼睛哪些缺陷？
用柱面镜可以矫正眼睛的散光缺陷。散光是由于晶状体曲率不均匀造成。
产品规格
材料：Schott、CDGM、Ohya、Ohara、Corning等。
直径公差：+0/-0.05mm
有效焦距公差：±2%
中心偏：≤3弧分
表面质量：40-20 s/d
表面平整度：n=5△n=0.5
通光孔径：>90%
镀膜：可选泽性（无镀膜/单层MGF2镀膜/宽带AR镀膜）
| Part NO. | Material | F(mm) | Φ(mm) | R(mm) | Tc(mm) | Te(mm) | Fb(mm) |
|---|---|---|---|---|---|---|---|
| ULYRPV008005 | BK7 | -8 | 5 | -4.13 | 2 | 2.84 | -9.34 |
| ULYRPV092008 | BK7 | -9.2 | 8 | -4.74 | 2 | 4.2 | -10.53 |
| ULYRPV010008 | BK7 | -10 | 8 | -5.16 | 2 | 3.89 | -11.31 |
| ULYRPV125127 | BK7 | -12.5 | 12.7 | -6.43 | 2 | 7.44 | -13.8 |
| ULYRPV025127 | BK7 | -25 | 12.7 | -12.89 | 2 | 3.67 | -26.33 |
| ULYRPV050127 | BK7 | -50 | 12.7 | -25.76 | 2 | 2.8 | -51.33 |
| ULYRPV075254 | BK7 | -75 | 25.4 | -38.64 | 2 | 4.15 | -76.34 |
| ULYRPV100254 | BK7 | -100 | 25.4 | -51.52 | 3 | 4.59 | -102 |
| ULYRPV150254 | BK7 | -150 | 25.4 | -77.27 | 3 | 4.05 | -151.99 |
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平凹方形柱面镜
BK7和熔融石英玻璃道威棱镜
道威棱镜由H.W.多芬发明，多芬棱镜也被称为反转棱镜。当棱镜绕其长轴旋转时，通过棱镜所看到的图像的旋转速度是棱镜旋转速度的两倍。道威棱镜比较特殊，有时用于特殊的应用。入口和出口表面都有防反射涂层
融石英球透镜和半球透镜
光学玻璃平凹透镜
平面凹透镜是光束扩散，光投影，或者扩大光学系统焦距的理想选择，它是一种焦距为负的光学透镜，具有一个凹面，平面朝向所需焦平面。平凹透镜适用于一系列的应用和各种行业。福州优恩立光电能够按客户要求为平凹透镜提供各种镀膜。
宽带增透膜消色差透镜
消色差透镜用来减小或消除色差。消色差透镜设计亦有助于减少球面像差。消色差透镜是一系列应用的理想选择，包括荧光显微镜、图像中继、检测或光谱学。消色差透镜通常是将两个元件胶合在一起或将两个元件安装在一个机械件中，它所产生的光斑尺寸比类似的单透镜要小。
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.
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电子邮件 : sales@uni-optics.com
