Perfection in cameras and optical instruments requires long-term testing and calibration. Devices like the OL 459 Tunable LED Source are up to exactly that task. Cutting-edge and innovatively designed, this integrating sphere turns LED calibration into an art-form.
In order for the OL 459 to calibrate precisely for an array of optical devices, consistent spectra are key. It can be used for everything from cameras to elite imaging microscopes. This unit can be customized exactly to the specifications of the equipment you need to calibrate, and it has a built-in versatility that’s hard to find in modern integrating spheres.
Some raw technical specifications are eye-opening:
- Maximum luminance measured at 12,000 fL (CCT @ 2856 K)
- Luminance uncertainty ±1.5%
- Color Temperature uncertainty ±30º K
- Sphere coating at an elite >98% reflectivity
- 6.0 inch sphere in diameter, exit port aperture size 1.50 inches diameter
- Simple USB-based communication interface, built-in
- 2% uniformity
- 48 VDC source power input (or 5.84 amps)
The sphere luminance monitor is exotic and impressive. By using a temperature-stabilized, high-accuracy silicon detector with a CIE photopic response, results will be exact.
The optics head on the OL 459 unit is a single input containing five independently operated channels (the power supply is separated from the optics head, allowing for remote usage). Our base model, although modifiable, has five distinct channels: blue, green, red, orange, and infrared. Phosphors within the LED allow for a consistent profile across the spectrum range.
Applications for the OL 459 can be vast, but were primarily designed for:
- Camera calibrations
- Blackbody color temperature replication
- Customized spectra (mainly targeted for specific R&D purposes)
LEDs at custom wavelengths allow for intriguing testing specifications, and at its core, the OL 459 Tunable integrating sphere brings elite LED calibration capabilities. It’s run via analog current with 48 DC volts, and since it weighs a mere 12 pounds, the unit is as portable as it is durable. For laboratories looking to step up their optical testing gear and reach exacting calibration levels, there are few units with the facility of the OL 459.