CR-280 VIS+NIR: Spectrophotometer
Spectroradiometer / Spectrophotometer
The ruggedly constructed housing of the CR-280 is made of machined aluminium and stainless steel, and can withstand high acceleration rates for the most demanding motion positioning systems and environments. All optical components are fixed to ensure that no optical misalignments occur due to vibration, shock or high acceleration/ deceleration rates.
It weighs only 1.2 pound (0.54 kg), and it is the perfect tool for display inspection and calibration and for mounting on fast moving XYZ tables. Its small size and shape allows for several CR-280s to be mounted in the same motion control system and the simultaneous measurement of several spots in the same display.
The CR-280 is a USB 2.0 compatible device, remotely controlled by the host software from any personal computer, laptop or net book. As an option, the CR-280 can also be controlled by an Ethernet 10BASET/100BASE-TX IEEE-802.3 compliant connection or a RS-232 port.
The CR-280 can be equipped with an optional External Trigger Port which enables remote measurement activation from either a push button, a peripheral device, or by hardware trigger signals to measure strobes/pulsed lights, and start/stop signals. This option is ideal for fast temporal events that need to be precisely synchronized for measurement or data capture.
Screw-on rubber hood adapter is included for contact measurements. Measurement spot diameter on contact measurements is 8 mm for a unit that has a 2 degree aperture and 14 mm for a unit that has a 1 degree aperture.
Future proof your CR-280 with additional custom color matching functions.
The CR-280 allows uploading up to three sets of custom CMF’s.This “custom” CMF’s can be alternate standards proposed by different organizations, such us Judd-Voss 1978 or custom CMF’s a researcher may be working on.
The CRIApp application is a streamlined, cross-platform, user-centric application designed to perform all colorimetric - based analysis. It provides a familiar and consistent workspace no matter which platform you are in. The CR-280 comes standard with a built-in, easy-to-learn command interpreter, for users to quickly create their own dedicated software to perform specific measurement tasks or for inclusion in an Automated Test Environment.
In addition, a fully documented communication language with numerous real-world, sample templates are included as starting points for customers to build their own software tools using any of the current development environments. LabVIEW driver is available upon request.
Your working environment is the same in every platform while taking advantage of features specific to the host operating system.
The user interface is designed with a user-friendly approach with controls at your fingertips, not hidden away in menus or complex preferences.
The software is engineered to support simultaneous data capture from multiple connected instruments based on the contextual task at hand. Select an instrument to take a reading or simultaneously use all open instruments.
Measurements are presented in a customizable tabular grid or charts. The software supports multiple types of measurements that can co-exist gracefully within the same streamlined interface.
The spectral data view supports automatic interpolation of spectral data so that it provides seamless comparison between unlike spectra.
The CR-280 has been designed with a direct viewing system that is easily detachable from the instrument’s main body (e.g., snaps in and out manually), and can be replaced with different types of viewing systems depending on user needs.
Direct viewing systems have been utilized for several decades in optical measuring instruments. Typically, the eyepiece is in a fixed location on the instrument and is otherwise non- movable. As such the viewer must align themselves with the angle of the viewing optics to use the eyepiece. This can be disadvantageous in situations where the eyepiece is in an inaccessible and/or uncomfortable spot for the viewer. The CR-280 overcomes the limitations of the typical direct viewing system by offering the horizontally rotatable viewing system VO-201.
For those cases where the CR-280 is mounted vertically on a test fixture or a robotically controlled XYZ table; the Perpendicular Viewing System VO-202 is an alternative to the rotatable viewing system.
The VO-204 is a very compact viewing system that couples to a small C-Mount camera for positioning and monitoring the measurement spot from a robotically controlled system.
| Detector | CMOS image sensor, 512 pixels |
|---|---|
| Spectral Range | 380 - 1080 nm |
| Spectral Bandwidth | 8 nm |
| Spectral Accuracy | ± 0.3 nm |
| Spectral Resolution | 2 nm / pixel |
| Luminance Range | 0.1 fL to 20000 fL‡ |
| Luminance Accuracy | ±2 %Ω |
| Luminance Repeatability | ≤1%Ω |
| Chromaticity Accuracy | ± 0.0015 x, yΩ |
| Chromaticity Repeatability | 0.0005 x, yΩ |
| Polarization Error | ≤ 0.5 % |
| Digital Resolution | 16 bits |
| Optics | Direct viewing and direct measuring system |
| Objective Lens | 40 mm |
| Focusing Range | 200 mm to infinity |
| Aperture | Fix (available at order time: 3°, 2°, 1°, 0.5°, 0.25°, 0.125°) |
| Field of View | 10° |
| Viewing optics | Patent pending removable and rotatable viewing system. |
| Custom Synchronization | 10 - 10000 Hz |
| Exposure Time Range | 0.04 to 30 seconds |
| Power Requirements | 5V, 120 mA (600 mW) via USB 2.0 |
| Interface | USB 2.0, Ethernet, RS-232 |
| Weight / Mass | 1 pound (0.45 kg)
1.2 pounds (0.54 kg) with viewing system VO-201 |
| Working Distance (mm) | 3° Aperture (mm) | 2° Aperture (mm) | 1° Aperture (mm) | 0.5° Aperture (mm) | 0.25° Aperture (mm) | 0.125° Aperture (mm) |
|---|---|---|---|---|---|---|
| 2000 | 103.50 | 68.99 | 34.49 | 17.25 | 8.62 | 4.31 |
| 1500 | 77.30 | 51.53 | 25.76 | 12.88 | 6.44 | 3.22 |
| 1000 | 51.10 | 34.06 | 17.03 | 8.52 | 4.26 | 2.13 |
| 750 | 38.02 | 25.34 | 12.67 | 6.34 | 3.17 | 1.58 |
| 500 | 24.94 | 16.62 | 8.31 | 4.16 | 2.078 | 1.039 |
| 400 | 19.69 | 13.12 | 6.56 | 3.28 | 1.64 | 0.82 |
| 300 | 14.46 | 9.64 | 4.82 | 2.41 | 1.205 | 0.603 |
| 254 | 12.05 | 8.03 | 4.01 | 2.01 | 1 | 0.5 |
| 250 | 11.84 | 7.89 | 3.94 | 1.97 | 0.985 | 0.493 |
| 240 | 11.31 | 7.54 | 3.77 | 1.89 | 0.943 | 0.471 |
| 200 | 9.22 | 6.14 | 3.07 | 1.54 | 0.768 | 0.384 |
All our instruments are calibrated using NIST traceable calibration standards at a color temperature of 2856 Kelvins.
This is a standard calibration method used by most spectroradiometer manufacturers. In addition to the NIST traceable calibration standards we take pride in having developed proprietary Calibration and Quality Assurance processes that require a laboratory grade scanning double monochromator and high accuracy filters of known transmittance and chromaticity.
Essentially, no other spectroradiometers are used during manufacturing and Q.A. because none of them are as accurate as a laboratory grade scanning double monochromator.
The CR-280, when compared with most of the high end spectroradiometers in the market, has been found to be on par or to exceed in accuracy and performance.