Visibility standard adopting narrow band interference filter
The utility model relates to a visibility standard adopting a narrow band interference filter, which comprises a transmitter, a receiver and an energy detecting device arranged on the receiver, wherein a light emitting diode is arranged in the transmitter, a receiving optical filter is arranged in t...
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| creator | HUANG YANHONG WANG GUOXIN TONG ZENGLIANG TENG JUN DONG WENYA XIAO QIAOJING TENG YIYONG |
| description | The utility model relates to a visibility standard adopting a narrow band interference filter, which comprises a transmitter, a receiver and an energy detecting device arranged on the receiver, wherein a light emitting diode is arranged in the transmitter, a receiving optical filter is arranged in the receiver and in front of a receiving lens along the light advancing direction; an energy detection photodiode is arranged in the energy detection device, a receiving photodiode and the energy detection photodiode are low nonlinear error photodiodes of the same type; and an energy detection optical filter is arranged in the energy detection device and in front of the energy detection photodiode along the light advancing direction, and the receiving optical filter and the energy detection optical filter are narrow band interference optical filters matched with the light emitting diode in the transmitter in characteristics. The visibility standard is used for overcoming the influence of temperature drift on the dev |
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| language | chi ; eng |
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| subjects | INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING |
| title | Visibility standard adopting narrow band interference filter |
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