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.
Original language | English (US) |
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Pages (from-to) | 205-212 |
Number of pages | 8 |
Journal | Proceedings of SPIE-The International Society for Optical Engineering |
Volume | 4611 |
DOIs | |
State | Published - Jan 1 2002 |
Keywords
- Autofluorescence
- Dynamic light scattering
- Microcontroller
- Ophtalmic instruments
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering