The Off-axis Infrared IR Collimator is an indispensable tool for the precision alignment, testing, and calibration of multi-spectral optical systems. Unlike traditional refractive systems, our off-axis design uses a high-precision parabolic reflective mirror. This ensures that light across the Visible, SWIR, MWIR, and LWIR bands remains perfectly focused at the same point, eliminating chromatic aberration entirely.
Whether you are synchronizing a laser rangefinder with a thermal camera or evaluating the MTF of a high-end lens, the KJP Series provides a stable, "infinite" optical reference with arcsecond accuracy.
Technical Specification
|
Model Number |
Focal Length |
Aperture |
FOV (Field of View) |
Spectral Range |
Parallelism Accuracy |
|
KJP-F500 |
500 mm |
Φ100 mm |
0.45° |
0.4 ~ 12 μm |
≤5" |
|
KJP-F800 |
800 mm |
Φ220 mm |
0.4° |
0.4 ~ 12 μm |
≤5" |
|
KJP-F1000 |
1000 mm |
Φ200 mm |
1.0° |
0.4 ~ 12.5 μm |
≤5" |
|
KJP-F1500 |
1500 mm |
Φ200 mm |
1.0° |
0.4 ~ 12 μm |
≤5" |
|
KJP-F2000 |
2000 mm |
Φ200 mm |
0.2° |
0.4 ~ 12 μm |
≤5" |
|
KJP-F3000-Φ300 |
3000 mm |
Φ300 mm |
0.9° |
0.4 ~ 12 μm |
≤5" |
|
KJP-F3000-Φ600 |
3000 mm |
Φ600 mm |
0.2° |
0.4 ~ 12 μm |
≤5" |

Application Scenarios
Multi-Sensor Boresighting
Aligning the optical axes of multi-channel systems (e.g., EO/IR gimbals) to ensure the crosshairs of the visible, thermal, and laser channels are perfectly coincident.
Imaging Quality Testing
Serves as the primary light source for measuring MTF (Modulation Transfer Function), distortion, and field curvature of infrared optics.
Infinite Distance Simulation
Simulates targets at an infinite distance within a compact lab space, allowing for the calibration of focus and infinity-stops on professional lenses.
Detector Characterization
Used in conjunction with a blackbody to test the pixel consistency and NETD of infrared focal plane arrays.
Product Series & Availability
Beyond our laser beam expanders, we offer a specialized suite of testing equipment to ensure the highest accuracy of your infrared systems:
- Off-Axis IR Collimators: High-precision reflective systems designed for the alignment and testing of multi-spectral and infrared sensors without chromatic aberration.
- Infrared Blackbodies: Highly stable and uniform radiation sources available in various temperature ranges for the precise calibration of thermal cameras and sensors.
- Laser Beam Expanders: (As detailed above) offering diffraction-limited performance for beam optimization across SWIR and visible bands.
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