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Inexpensive LED-Based Optical Coating Sensor
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DOI：10.1109/JSEN.2017.2740208.png)
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Abstract
En 中文
Optical coatings are widespread in everyday life, from camera lenses and glasses, to complex optics experiments. Thus, a simple, reliable sensor that can quickly and inexpensively analyze optical coatings is a valuable laboratory tool. Such a device can help identify optical coatings and characterize the transmission spectra of optical components used in an experiment. We present the design and characterization of a LED-based spectrophotometer and demonstrate its ability to identify different optical coatings. Our approach uses ten LEDs that cover a spectrum from 365 nm to 1000 nm. The optical coating sensor is automated, portable, inexpensive, user-friendly, and simple to build.
Keywords:
Spectral analysis
optical filters
light emitting diodes
photodetectors
optical sensors
optics
optical losse
coatings
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