1. Date of download: 9/17/2016 Copyright © 2016 SPIE. All rights reserved. Schematic of the DOE fringe projection technique. The inset shows the fringes projected on the ground glass. Figure Legend: From: Heat transfer measurement by a diffractive optical element fringe projection Opt. Eng. 2007;46(9):093606-093606-4. doi:10.1117/1.2779023

2. Date of download: 9/17/2016 Copyright © 2016 SPIE. All rights reserved. Qualitative visualization of temperature gradient around a heated circular cylinder in air. Figure Legend: From: Heat transfer measurement by a diffractive optical element fringe projection Opt. Eng. 2007;46(9):093606-093606-4. doi:10.1117/1.2779023

3. Date of download: 9/17/2016 Copyright © 2016 SPIE. All rights reserved. Fringe pattern on a horizontal surface facing upward in a colder fluid: plate temperature 35°C, water pool temperature 19°C, field of view ≈1.5cm. Figure Legend: From: Heat transfer measurement by a diffractive optical element fringe projection Opt. Eng. 2007;46(9):093606-093606-4. doi:10.1117/1.2779023

4. Date of download: 9/17/2016 Copyright © 2016 SPIE. All rights reserved. Iso-lines of temperature gradient obtained from Fig. by FFT demodulation. Figure Legend: From: Heat transfer measurement by a diffractive optical element fringe projection Opt. Eng. 2007;46(9):093606-093606-4. doi:10.1117/1.2779023