ISI-SYS LED LIGHT SOURCE

LED LIGHT SOURCE

The Blue-X-Lite LED LIGHT SOURCE is an entry-level professional flicker-free lighting solution for DIC. Short wavelength, small bandwidth, pulse mode, focusable.

The Blue-X-Lite can be used in continuous wave mode (CW) or pulsed mode (Pulse) with 20 W. Due to its fast rise times < 100 ns in combination with a special trigger unit, it is also suitable for synchronisation with DIC systems with stroboscopic illumination. Light intensity can be controlled stepless up to 60% light intensity for continuous wave mode (CW) and 100% light intensity for pulse mode (Pulse).

Frame Rates:

• Two versions are available with trigger frequencies up to 1,000 Hz or 10,000 Hz.
• The Blue-X-Lite can be easily attached directly to the stereo bar by flexible arms for individual adjustment of the light direction.
• The fanless design offers the advantage of no vibrations being transmitted to the stereo bar.

Mounting:

• 1/4″, 3/8” and M6 threads for tripod or flexible mounting arms (bottom). M4 threads (front) for mounting to VIC
• Professional fine-adjustment camera mounts.
• Blue-X-Focus — LED light source
• The new LED light source with 80W up to 120Hz and 1μs flash period

The Blue-X-Focus is a powerful LED light source, especially designed by isi-sys for digital image correlation:

• The short, single wavelength (blue) improves the optical transfer function properties, especially a) at the image borders for conventional lenses and b) for high resolution, small FOV set-ups such as the Micro 3D Stereo Sensor.
• The pulse mode reduces motion blur and maximises light power at the lowest possible heating of the object surface
• Large beam expansion range from 3,2° to 60° for small to large field of view. Operation through small windows
• A polarisation filter (optional) suppresses direct reflections in combination with a second pair for the sensors
• The short wavelength can be used in combination with bandpass filters for measuring on hot samples

Further Details:

• Standard operation with 80W in continuous mode or 120W for pulse mode, depending on duty cycle. Example for 0,7 duty cycle: 105W @ 240Hz and 2.9ms flash period.
• Power adjustable manually or externally by pulse length and frequency, as well as automatically limited depending on temperature.
• The focusing adapter for standard DIC is from 5° to 60° expansion. The version for small FOV is adjustable from 3,2° to 4,7° expansion corresponding to e. g. 5mm x 3mm at 53mm WD or 300mm x 140mm at 1800mm WD (working distance).
• Mounting is possible horizontally or vertically via M6 or ¼” threads.
• The cooling air stream is directed from the front inlet to the backside to avoid hot air waves in the images.
• Standard operation with 80W in continuous mode or 120W for pulse mode, depending on duty cycle. Example for 0,7 duty cycle: 105W @ 240Hz and 2.9ms flash period.