光学玻璃中性密度滤光片

IPL滤光片是IPL（强脉冲光）机器的关键光学元件，可阻挡紫外波，并为激光设备传输400nm至1200nm的有用波，如光子嫩肤脱毛、血管和痤疮治疗、皮肤再生。

带通滤光片是一种通过一定范围内的频率并拒绝（衰减）该范围之外频率的装置，它用于选择性地传输一部分光谱，同时拒绝所有其他波长。

长波通滤光片适用于各种应用，如气体监测，温度，传感，热成像和运动传感等。长波通滤光片可阻挡较短波长并传输较长波长。 阻挡可以来自反射，吸收或组合。 带通中的透射可以通过第二表面上的增透膜涂层来增强。

激光透镜用于在各种激光应用中聚焦来自激光束的准直光。激光透镜包括一系列透镜类型，包括平凸透镜，激光划线透镜或激光发生器透镜。 激光头设计用于根据透镜类型以几种不同的方式聚焦光线，例如聚焦到一个点，一条线或一个环。许多不同的镜头类型可用于各种波长。

用于光纤耦合和激光二极管光束成形，工作距离为0mm的透镜非常适用于单模和多模光纤和激光二极管的准直，因为透镜可以直接定位并直接粘合在发射源上。 对于聚焦应用，或者镜头不能与发射源直接接触的情况下，所有镜头也可以具有小的工作距离。UNI Optics可提供Φ1~Φ15mm的尺寸，数量和尺寸，包括抛光/磨削表面的差异，可根据客户要求提供。

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.

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.
 

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.

锥形透镜是圆柱形棒透镜，其一端加工成锥形表面。 通常研磨杆的圆周，而抛光锥形表面。