Microcontroller-based front-end electronics for simultaneous measurements of dynamic light scattering and natural fluorescence

Luca Pollonini; Andrea Pasquali; Luigi Rovati; Rafat R. Ansari

doi:10.1117/12.470596

13 June 2002 Microcontroller-based front-end electronics for simultaneous measurements of dynamic light scattering and natural fluorescence

Luca Pollonini, Andrea Pasquali, Luigi Rovati, Rafat R. Ansari

Author Affiliations +

Proceedings Volume 4611, Ophthalmic Technologies XII; (2002) https://doi.org/10.1117/12.470596
Event: International Symposium on Biomedical Optics, 2002, San Jose, CA, United States

Abstract

A digital control unit for use with a new integrated instrument for dynamic light scattering and natural fluorescence measurements is presented. This unit, based on a microcontroller (Microchip PIC16F877), process signals from an optical head and controls instrument functions. The microcontroller internal counters are used to perform real- time photon counting measurement by processing the TTL signals obtained from the photodetectors. The new system provides reliable and simultaneous DLS and AF measurements from the same ocular volume located from the cornea to the retina.

Citation Download Citation

Luca Pollonini, Andrea Pasquali, Luigi Rovati, and Rafat R. Ansari "Microcontroller-based front-end electronics for simultaneous measurements of dynamic light scattering and natural fluorescence", Proc. SPIE 4611, Ophthalmic Technologies XII, (13 June 2002); https://doi.org/10.1117/12.470596

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