Basic Info.
Dimmension Tolerance
-0.1
Transport Package
Protective Packing
Product Description
Product Description
Optical Ge window:Why use a Ge window?
Germanium is a high index material that is used to manufacture Attenuated Total reflection (ATR) prisms for spectroscopy. Its refractive index is such that germanium makes an effective natural 50% beamsplitter without the need for coatings.
Germanium (Ge) Optical Components are used in many Infrared (IR) applications or systems, including thermal imaging, spectroscopy, or with monochromatic light sources such as quantum cascade lasers. German (Ge) Optical Components are Optical Components designed for high performance in the Infrared (IR) spectrum without the use of Infrared (IR) anti-reflection coatings.
The Knoop Hardness of germanium (780) is approximately twice that of magnesium fluoride, making it ideal for infrared applications requiring rugged optics. Germanium is subject to thermal runaway, meaning that the transmission decreases as temperature increases. As such,germanium windows should be used at temperatures below 100°C. Germanium's high density (5.33 g/cm3) should be considered when designing for weight-sensitive systems. Windows are typically availabe in a variety of sizes, contact us for availability.
Specifications of prism: Substrate | Germanium (Ge) |
Diameter Tolerance (mm) | +0.0/-0.1 |
Clear Aperture (%) | 90 |
Thickness (mm) | 0.5-1.5 |
Thickness Tolerance (mm) | 0.1 |
Surface Quality | 60 - 40 |
Surface Accuracy | 1/10 @ 10.6μm |
Parallelism (arcminutes) | <1 |
Density (g/cm3) | 5.33 |
Knoop Hardness (kg/mm2) | 780 |
Diameter | Germanium (Ge) |
Coating | 8-12 μm |
Type | Protective Window |
Wavelength Range (μm) | 2.0 - 16.0 μm |
Damage Threshold | 0.5 J/cm2 (10.6 µm, 100 ns,
1 Hz, Ø0.478 mm) |
Notes:
- We will process as the drawings and requirements rigorously.
- Our engineer will check or design the drawings according to the details.
- In addition,we have some stock lenses for your option.
Our Processing Products
Company Information
Our Company processing ablility:
Optical Surfaces Requirements:
The lens application drives the requirements for surface irregularity and surface quality.
Surface Irregularity |
Figure | Cost | Applications |
λ/2 | Low | Used where wavefront distortion is not as important as cost |
λ/4 | Moderate | Excellent for most general laser and imaging applications where low wavefront performance must be balanced with cost |
λ/8 | High | For laser and imaging applications requiring low wavefront distortion, especially in systems with multiple elements |
Surface Quality |
Scratch-Dig | Cost | Applications |
60-40 | Low | Used for low power laser and imaging applications where scattered light is not as critical as cost |
40-20 | Moderate | Excellent for laser and imaging systems with focused beams that can tolerate little scattered light |
20-10 | High | For demanding laser and imaging systems where minimizing scattered light is critical |
Manufacturing Tolerances:
Tolerances | Commercial quality | Precision quality | Manufacturing limits |
Glass Quality | nd | ±0.001 | ±0.0005 | Melt controlled |
vd | ±0.8% | ±0.3% | Melt controlled |
Diameter(mm) | +0.00/-0.10 | +0.00/-0.05 | +0.00/-0.01 |
Center Thickness(mm) | ±0.10 | ±0.02 | ±0.005 |
SAG (mm) | ±0.050 | ±0.025 | ±0.010 |
Radius | ±2% | ±0.5% | ±0.025% |
EFL | ±2% | ±1.0% | ±0.1% |
Scratch-Dig | 80-50 | 40-20 | 10-5 |
Power (fringe) | 8 | 3 | 1 |
Irregularity (fringe) | 3 | 0.5 | 0.2 |
Wedge Lens (ETD, mm) | 0.05 | 0.01 | Facility controlled |
Bevel | <0.25mm x 45°or upon requirement | No bevel |
Coating | Upon requirement |
After-sale Service
- Our Customer service will track the product processing until you received the goods and verify the product quality.
- Professional engineers and application specialists respond to your requests efficiently Online via SKYPE
- Also through mail, voice phone, message and fax if nework is not accessible for customer
- Follow up the case, record the entire process. Solution will be provide with 24 hours.
- Meanwhile,the problem complaint will be reported to QC department.
QC will find defect from which department ,who is in charge to identify responsibility. - Collecting and record customer respond , suggestion, requirement
Packaging & Shipping
Packing
We will use protective plastic and customized boxed to pack.(Enviroment friendly material)
We could do customized packing according to the quantity.
OEM Service
- Realpoo Optics,offer Better products,offer Better service.
- Activity attitude will let you satisfy!Concentrate on work
- Welcome you to inquiry ,and thanks for beliving in Realpoo Optics Team.
Address:
No. 4 Puqing Road, Chaoyang District, Changchun Jilin, China
Business Type:
Manufacturer/Factory
Business Range:
Consumer Electronics, Electrical & Electronics
Company Introduction:
Changchun Realpoo Photoelectric Co., Ltd is a professional manufacture of optics. Realpoo possess Experienced engineer, Professional production line, exellent testing machine as well as advanced inspection instrusment. With the advanteges, we offer optical products in the fileds of University laboratory, Industry, Scientific research, Medical treatment, Mechanical equipments so on.
Realpoo has the capability of producing optical lens, aspherical lens,
Spherical lens, including concave lens, convex lens, achromatic lens, plano or double lenses etc. The materials are accoriding to customers′ needs, such as optical glass, fused silica, sapphire, ZnSe, CaF2, MgF2, Ge, ZnSe, Si. Laser modules, laser pointers, portable lasers, powell prism, line lens
Have good market in the world.
We are confident because we have good team work, strict quality
Controlsystem, best after-sales service. "Superior quality, Best service. "Realpoo will insist on the goal to guarantee your satisfaction!
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