1. strictly confidential Introduction to Lenses 07/28/2015: Copyright @ 2014 Applied Core Technology Inc., All Rights Infrared Vision 05/13/2014: Copyright @ 2014 Applied Core Technology Inc., All Rights

2. strictly confidential Introduction to Lenses 07/28/2015: Copyright @ 2014 Applied Core Technology Inc., All Rights 2 Infrared Spectrum

3. strictly confidential Introduction to Lenses 07/28/2015: Copyright @ 2014 Applied Core Technology Inc., All Rights 3 Infrared Light Properties Reflection Absorption (Heat or Photoelectric effect) Transmission

4. strictly confidential Introduction to Lenses 07/28/2015: Copyright @ 2014 Applied Core Technology Inc., All Rights 4 Near and Short Wave Infrared Lighting  Infrared waves allow penetration into certain materials rendering certain layers invisible  Same quality as visible light (High resolution images possible)  Wave length required depends on material

5. strictly confidential Introduction to Lenses 07/28/2015: Copyright @ 2014 Applied Core Technology Inc., All Rights 5 Mid and Long Wave Infrared  Thermal Imaging (Thermography)  All objects above 0 degrees Kelvin exhibit thermal radiation  Mid and Long wave IR cameras allow you to capture this radiation

6. strictly confidential Introduction to Lenses 07/28/2015: Copyright @ 2014 Applied Core Technology Inc., All Rights 6 Infrared Lenses Difference in focal distance for NIR and visible light lenses Lens coatings are often visible to NIR light

7. strictly confidential Introduction to Lenses 07/28/2015: Copyright @ 2014 Applied Core Technology Inc., All Rights 7 Filtration Stages Mounts between camera and lens Cuts visible light to CMOS sensor Easy to find high performance low cost solutions

8. strictly confidential Introduction to Lenses 07/28/2015: Copyright @ 2014 Applied Core Technology Inc., All Rights 8 Applications in Solar (Electroluminescence )  Forward biased cell acts as diode (Emit near IR light 1100nm)  Light intensity directly correlates to cell performance  Allows you to see cracks not visible with 400-700nm light

9. strictly confidential Introduction to Lenses 07/28/2015: Copyright @ 2014 Applied Core Technology Inc., All Rights 9 Applications in Solar (Shunts)  Identifying shunts in cells  Lock in Thermography (Apply modulated reverse voltage to cell periodically, observe heat from shunts, software processes images according to the frequency. This method avoids issues caused by heat diffusion during constant biasing)

10. strictly confidential Introduction to Lenses 07/28/2015: Copyright @ 2014 Applied Core Technology Inc., All Rights 10 Applications in Solar (Panel Level)

11. strictly confidential Introduction to Lenses 07/28/2015: Copyright @ 2014 Applied Core Technology Inc., All Rights 11 Infrared Lenses  Most lenses have a coating that is not designed for infrared light in the mid and long IR range  Problems such as flare and ghosting can occur