To provide a light emitting device employing an LED capable of achieving a light emitting element with a uniform light distribution and high efficiency.
The light emitting element with a uniform light distribution and high efficiency is achieved by the light emitting device. The element comprises: a recessed reflecting mirror that is a revolution surface shape formed by the rotation of part of a parabola along an optical axis, or a trough surface shape in which part of the parabola is an edge line, and has round or rectangular opening in the front and rear thereof; a light emitting surface shaped LED that is disposed at a position of the rear opening to fill the rear opening; and a diffuse transmission plate disposed at a position of the front opening to fill the front opening.
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