| optical rotation |
Optical rotation is one of the objective tests performed by Frontier to determine the purity of every essential oil. A sensitive scientific instrument (polarimeter) measures the degree a light ray bends when it is passed through a column of oil. The reading is compared to established standards; significant deviation from the standard may indicate impurities and give cause for further investigation.
출처: www.frontiercoop.com/learn/glossary.html
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| optical blink reflex |
Involuntary closure of the eyelids after exposure to a bright light source. Shining a bright light at an infant's eyes causes the eyes to blink and the head to flex backward. If this reflex is absent, further testing of cran
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| optical coherence tomography |
A radiographical method used to obtain high-resolution cross-sectional images of tissues and their defects, e.g., of the structures of the eye.
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| optical defocus |
Defocus.
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| optical detector |
The sensor in a typical colorimeter or photometer that senses the light transmitted by the sample.
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