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LED Module
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By the half-value angle size can be estimated round luminous intensity angular distribution. From LED Bulb the angular distribution of light intensity to be divided into three categories:
(1) high directivity. Generally pointed epoxy package, or package with a metal reflector cavity, and does not add scattering agent. Half-value angle of 5 ° ~ 20 ° or less, with a high directivity, can be used for local illumination light source or the light detector associated to form an automatic detection system. LED Flexi Strip
(2) standard. Typically used for light, and its half-value angle of 20 ° ~ 45 °.
(3) the scattering type. This indicator is a larger perspective, the half angle of 45 ° ~ 90 ° or more, a LED Module large amount of scattering agent.
3, according to the structure of the light emitting diode
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