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. Author manuscript; available in PMC: 2007 Dec 13.
Published in final edited form as: Heart Rhythm. 2007 Jun 12;4(8):1057–1068. doi: 10.1016/j.hrthm.2007.03.037

Figure 1.

Figure 1

Optical apparatus. Transmembrane potentials were imaged optically using a 100 × 100 CMOS camera at up to 10,000 frames per second (0.1-ms resolution). A: Orientation of field of view and schematics of optical apparatus. B: Sample traces at 2,000, 5,000, and 10,000 frames per second. Signal-to-noise ratio was 81:1, 47:1, and 21:1 respectively.