Rectangular Optical Window
Rectangular optical windows are precision flat components designed to transmit light while protecting sensitive optical elements, sensors, detectors and internal assemblies. Their geometry suits systems requiring a non-circular clear aperture or mechanical interface.
Rectangular Optical Window Overview
Rectangular Optical Windows provide optical transmission and environmental protection in space-constrained or non-circular assemblies.
Chenyu Optics manufactures custom rectangular windows from fused silica, optical glass and sapphire. Length, width, thickness, flatness, surface quality, edge treatment and coating can be customized.
UV, VIS, NIR and compatible IR anti-reflection coatings are available for imaging, laser, sensor, inspection and protective optical systems.
Key Advantages of Rectangular Optical Windows
Imaging, Sensing & Protective Systems
Custom rectangular windows provide reliable transmission and protection where non-circular apertures or mechanical interfaces are required.
Specifications
Optical & Physical Properties
| Parameter | Value |
|---|---|
| Material Options | Fused Silica / Optical Glass / Sapphire |
| Product Type | Rectangular Optical Window |
| Optical Function | Optical transmission / Component protection |
| Shape | Rectangular |
| Length | Customized |
| Width | Customized |
| Thickness | Customized |
| Clear Aperture | Customized |
| Surface Flatness | Customized |
| Surface Quality | 20-10 / 40-20 scratch-dig |
| Parallelism | Customized |
| Edge Treatment | Ground / Chamfered / Customized |
| Wavelength Range | UV / VIS / NIR / IR, material dependent |
| Coating | Uncoated / UV AR / VIS AR / NIR AR / IR AR |
Transmission Curve (Typical)
Why Choose Chenyu Optics for Rectangular Optical Windows
Chenyu Optics supports drawing-based rectangular optical window production for imaging, laser, sensing, industrial inspection and protective optical systems. We review material, wavelength, length, width, thickness, surface specifications, edge treatment and coating requirements before production.
Manufacturing Capability for Rectangular Optical Windows
Precision Optical Polishing
Precision polishing of fused silica, optical glass and sapphire with custom length, width, thickness, flatness and surface quality.
Wavelength-Specific AR Coating
UV, visible, NIR and IR anti-reflection coatings optimized for wavelength, angle of incidence, polarization and system requirements.
Inspection & Packaging
Dimensional, parallelism, surface and optical inspection followed by clean handling and protective packaging.
Custom Rectangular Optical Window Options
Rectangular vs Round Optical Windows
| Property | Rectangular Optical Window | Round Optical Window |
|---|---|---|
| Geometry | Custom length and width | Custom diameter |
| Mechanical Integration | Suited to rectangular apertures and compact interfaces | Suited to circular mounts and apertures |
| Clear Aperture | Rectangular clear aperture | Circular clear aperture |
| Typical Applications | Imaging, sensors, machine vision and industrial inspection | General optical protection, laser and instrument systems |
| Key Dimensions | Length, width and thickness | Diameter and thickness |
Important Considerations for Rectangular Optical Windows
Applications and Selection Considerations
Imaging Systems
Protects internal optics while maintaining high-quality transmission.
Laser Systems
Provides wavelength-specific transmission and component protection.
Optical Sensors
Protects sensors and detectors in rectangular mechanical interfaces.
Industrial Inspection
Durable optical protection for inspection and measurement equipment.
Machine Vision
Clear protective windows for industrial cameras and vision modules.
Scientific Instruments
Custom transmission windows for analytical and laboratory systems.
Rectangular Optical Window FAQ
What materials are available for rectangular optical windows?
Fused silica, optical glass and sapphire are available. Selection depends on wavelength, environment, mechanical requirements and optical performance.
Can the length, width and thickness be customized?
Yes. Chenyu Optics provides custom rectangular dimensions and thicknesses according to optical and mechanical requirements.
Can rectangular optical windows be AR coated?
Yes. UV, VIS, NIR and selected IR AR coatings are available depending on substrate material and operating wavelength.
What is the difference between an optical window and a standard glass plate?
Optical windows use controlled surface quality, flatness, parallelism, dimensional tolerances and optical materials to minimize unwanted effects on transmitted light.
Can custom edge treatments be specified?
Yes. Edge grinding, chamfers and other edge specifications can be customized according to mounting and handling requirements.
What information should I provide for a quotation?
Please provide the substrate, length, width, thickness, tolerances, wavelength, flatness, surface quality, parallelism, clear aperture, edge requirements, coating, angle of incidence, quantity and drawing if available.
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Need Custom Rectangular Optical Windows?
Send your material, length, width, thickness, wavelength, surface specifications, clear aperture, edge treatment, coating requirements and quantity for technical evaluation and quotation.