Product type: Absorbing Filter. Application: Lighting, Medical, Optical, Photography. Model: OF-0048.
Overview
20mm Circular/Rectangle Optical CPL Filter Pl Filter Linear Polarizer Filter for Camera Image is a waveplate / polariser / grating made from Glass. Listed geometry: thickness Customize as Per Demand. Optical / electrical data: wavelength 200-2000nm. Listed for Lighting, Medical, Optical and Photography applications. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.
Specifications
| Material | Glass |
|---|---|
| Type | Absorbing Filter |
| Shape | Customized |
| Wavelength Range | 200-2000nm |
| Usage | Lighting, Medical, Optical, Photography |
| Model NO. | OF-0048 |
| Thickness Range | Customize as Per Demand |
| Color | Customize as Per Demand |
| Principle | Selective Absorption Filter |
| Angle of incidence | 0° |
| Use | Optical Instruments |
| Design Wavelength | According to Demand |
| Thickness Tolerance | +/-0.02mm |
| Core Manufacturing Advantage | Vacuum Coating Technology |
| Biomedical | Microscope imaging, fluorescence detection, spectral screening for biochemical analyzers; |
| Industrial Inspection | Machine vision color recognition, thin film thickness measurement, metal surface defect detection; |
| Optical Communication | Optical fiber signal filtering, wavelength division multiplexing (WDM) systems; |
| Security Monitoring | Narrow-band filtering for infrared thermal imagers and night-vision equipment; |
| Core Function | Divides the spectrum into a "complete cut-off region" and an "efficient passband region", realizing complete blocking or transmission of specific wavelength ranges; |
| Short-Wave Pass Filter | Only allows short-wave light (e.g., ultraviolet, blue light) to pass through, blocking long-wave light (e.g., red light, infrared); |
| Long-Wave Pass Filter | Only allows long-wave light (e.g., infrared, red light) to pass through, blocking short-wave light (e.g., ultraviolet, blue light); |
| Unique Structure | Glass Substrate → Translucent Metal Layer → Magnesium Fluoride (MgF2) Interlayer → Translucent Metal Layer (forming a Fabry-Perot Etalon); |
| Direct Factory Supply | No middlemen markup, spot inventory for regular models (delivery within 72 hours), 15-20 days lead time for customized models; |
| Technical Support | Provides pre-sales spectral selection consultation and after-sales installation guidance, free sample testing available (freight to be negotiated). |
| Supplier | C-Laser (Taicang) Material Technology Co., Ltd. |
Technical data
| Technical Indicator | Parameter Specification | Indicator Description |
| Dimensional Tolerance | +0.0/-0.2mm | High-precision size control, suitable for automated equipment assembly, reducing assembly gaps |
| Surface Finish | 60-40 | Strict control of surface scratches and pits, stray light suppression rate >98%, improving optical imaging quality |
| Clear Aperture | >90% | High proportion of effective light-transmitting area, avoiding reduced light utilization caused by edge blocking |
| Parallelism | <1 arc min (Angular Minute) | Minimal parallelism error between the two light-transmitting surfaces, reducing optical axis deviation, suitable for high-precision optical systems |
What to specify when you request a quote
- Material — listed as “Glass”; name the glass or crystal.
- Geometry — listed as “0°”; give diameter, focal length or radii, angles and tolerances.
- Surface figure — quote surface figure (λ) and scratch-dig.
- Centring and edges — state centration and edge chamfer.
- Coating — list the band and reflectance or transmission target.
Engineering guides for this part
How parts like this are machined and finished is covered in Ultra Thin Quartz Glass Disc Processing: A Step-by-Step Manufacturing Guide. For an application example, read Custom Ultra-Thin Glass Discs for Appliance Sensor Assemblies. A related standard product is Custom Ultra-Thin Quartz Glass Disc.
FAQ
What is the 20mm Circular/Rectangle Optical CPL Filter Pl Filter Linear Polarizer Filter for Camera Image made of? expand_more
It is listed as Glass. Other grades can be quoted if your application needs different transmission, thermal or chemical properties.
What sizes and thicknesses are available? expand_more
The listing gives thickness Customize as Per Demand. Custom outlines and thicknesses are made to drawing; state the tolerance you need.
What optical or electrical performance does it have? expand_more
Listed values: wavelength 200-2000nm. Confirm the values at your operating wavelength, angle and temperature when you request a quote.
Where is this waveplate / polariser / grating used? expand_more
Listed applications: Lighting, Medical, Optical and Photography.
What should I include in a quote request? expand_more
Include material, geometry, surface figure, centring and edges and coating, plus quantity and a drawing if the part is custom.
