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COBRA™ Linescan Illumination

High-brightness frontlight and backlight LED illumination for linescan and web inspection

Patented COBRA technology enables breakthrough in optical intensity
Current-regulation electronics integrated into COBRA unit
Intensity can be adjusted using 0 to 5 V analog voltage control
Meets NEMA 12 requirements
High level of uniformity due to chip-on-board LED fabrication
125 mm, 250 mm and 500 mm
Available in red, IR, blue, UV and white
Backlight and frontlight configurations

NEW!	- Download StockerYale's White Paper titled "Optimizing Illumination for Linescan Vision Systems"

COBRA Linescan Illumination has been designed “from the chip up” for the extreme requirements of high-speed linescan and web inspection. The LED-based COBRA lines are comparable to, or outperform, halogen and fluorescent line illumination, while offering all of the many advantages of LEDs — long lifetime, controllability, and increased reliability.

Intense optical output is achieved by means of StockerYale’s patented chip-onboard reflective array (COBRA) technology, a unique innovation in thermal and optical efficiency for LED arrays. The chip-on-board approach to LED module fabrication yields an essentially unbroken line of semiconductor light source, resulting in an extremely high level of uniformity. The combination of high intensity and superior uniformity results in crystal clear linescan images.

Applications

Web and linescan
inspection of:

- Foil
- Paper
- Plastic film
- Non-wovens
- Currency
- Road surfaces
- PCBs
- Semiconductors
- Glass
- Metal sheets
- Flat panel displays

Accessories

- Power Supplies
- External Control Unit

Specifications

COBRA Linescan Illuminator
COBRA Linescan Backlight
Typical White Color Spectrum

Figure 1: These graphs show illumination line thickness and intensity in the field of illumination, as a function of a working distance. The maximum intensities for each COBRA color are given in the data tables. Intensity measurements were taken using a detector with a 4 mm diameter aperture.

Dimensions and Mounting

Mechanical Dimension Diagrams
3-D Images of 125, 250, and 500 mm COBRAs

COBRA Linescan Illumination devices can be mounted using M4x0.7 metric threaded holes present on the heat-dissipating fins. The positions of these holes are shown in the drawings. There are holes on both sides of the units. All dimensions are given in millimeters.

Part numbers

Power Level

CCL (C-Series)
TCL (T-Series)

Wavelength (nm)

630
395
470
740

Length (mm)

125
250
500

Configuration

F (front light)
B (back light)

RCL (R-Series)
SCL (S-Series)

000 (white)

125
250
500

F (front light)
B (back light)

Example: TCL-630-125-B
RCL-000-500-F

For more information on COBRA Linescan Illumination, please contact