Description
Cosine Correctors for Optical Fibers and Spectrometers
Cosine correctors are optical diffusers designed to enable accurate spectral irradiance measurements by collecting light over a 180° field of view. When coupled to optical fibers or directly attached to spectrometers, they convert radiometric signals into stable, Lambertian-weighted measurements that follow cosine angular response behavior.
These accessories are essential for applications requiring accurate measurement of extended or non-collimated light sources, such as LEDs, lamps, solar radiation, and other broadband emitters.
The CC-Series cosine correctors are engineered using high-performance diffuser materials including Spectralon, PTFE, and opaline glass, ensuring wavelength-optimized performance across UV, visible, and near-infrared ranges.
Key configurations include:
Fiber-coupled irradiance probes (CC-3, CC-3-UV-S, CC-3-UV-T)
Direct spectrometer-mounted cosine corrector (CC-3-DA)
UV–NIR broadband and application-specific material variants
These designs enable flexible deployment in laboratory, industrial, and field spectroscopy systems.
Cosine Correctors for Optical Fibers and Spectrometers
Specifications
| Connects To: | Optical fiber, Spectrometer |
|---|---|
| Optical Diffuser: | Opaline glass, Spectralon, PTFE |
| Wavelength Range: | 350 – 750 nm |
| Diffuser Diameter: | 3.9 mm |
| Dimension (OD): | 6.35 mm |
| Field Of VIew: | 180 deg |
| Diffusing Material: | Opaline glass |
| Diffusing Material: | Spectralon |
| Diffusing Material: | PTFE |
| Typical Wavelength Range (model Dependent): | 350-750 nm, 200-1700 nm, 200-750 nm, 200-1100 nm |
| Dimensions (model Dependent): | 6.35 mm OD, 12.7mm OD |
| Field Of View: | 180° |
| Diffuser Diameter (model Dependent): | 3900um, 7140um |
Got questions about specs? Use the inquiry form to ask.
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Features
- Versatile Compatibility: The CC-Series Cosine Correctors are designed to couple seamlessly with optical fibers and spectrometers, enabling both relative and absolute spectral intensity measurements.
- Emission and Light Source Evaluation: Ideal for emission applications and evaluating various light sources, providing accurate and reliable data.
- Irradiance Probe Functionality: When attached to an optical fiber, models CC-3, CC-3-UV-S, and CC-3-UV-T transform into an efficient irradiance probe for measuring light intensity normal to the probe surface.
- Direct Spectrometer Connection: The CC-3-DA model screws directly onto the SMA 905 Connector of spectrometers, forming a complete spectroradiometric system without the need for an optical fiber.
- High-Quality Diffusing Materials: Available in Opaline glass and Spectralon, with PTFE options, ensuring optimal performance across various applications.
- Wide Spectral Range: Covers a typical range of 200-1700 nm, depending on the model, suitable for a broad spectrum of light measurement needs.
- Compact Dimensions: Models feature a compact design with dimensions of 6.35 mm OD or 12.7 mm OD, allowing for easy integration into existing setups.
- Comprehensive Field of View: All models provide a 180° field of view, ensuring comprehensive light capture and measurement.
Applications
- Relative and Absolute Spectral Intensity Measurements: The CC-Series Cosine Correctors are designed to couple with optical fibers and spectrometers for both relative and absolute spectral intensity measurements.
- Emission Applications: Ideal for evaluating light sources in various emission applications.
- Irradiance Probe: When models CC-3, CC-3-UV-S, and CC-3-UV-T are attached to an optical fiber, they transform into an irradiance probe, allowing for the measurement of light intensity normal to the probe surface.
- Spectroradiometric System: The CC-3-DA model can be directly attached to the SMA 905 Connector of spectrometers, forming a complete spectroradiometric system without the need for an optical fiber.
- Wide Spectral Range: The native response of Spectralon covers a broader range than specified, optimized for use with spectrometers as a light collector.
- Specifications:
- CC-3: Diffusing material: Opaline glass, Typical range: 350-750 nm, Dimensions: 6.35 mm OD, Field of View: 180°
- CC-3-UV-S: Diffusing material: Spectralon, Typical range: 200-1700 nm, Dimensions: 6.35 mm OD, Field of View: 180°
- CC-3-UV-T: Diffusing material: PTFE, Typical range: 200-750 nm, Dimensions: 6.35 mm OD, Field of View: 180°
- CC-3-DA: Diffusing material: Spectralon, Typical range: 200-1100 nm, Dimensions: 12.7 mm OD, Field of View: 180°
Frequently Asked Questions
What are Cosine Correctors used for?
How do the CC-3, CC-3-UV-S, and CC-3-UV-T models work?
What is the function of the CC-3-DA model?
What materials are used in the diffusing elements of these cosine correctors?
What is the typical range of wavelengths that these cosine correctors can measure?
What are the dimensions of these cosine correctors?
What is the field of view for these cosine correctors?
Got more questions? Use the inquiry form to ask the supplier directly.
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