OPTICAL RESONATOR

摘要

PROBLEM TO BE SOLVED: To realize high luminance emission of an optional additive color by an organic EL element or the like. SOLUTION: This optical resonator (resonance organic EL element) comprises an organic light emitting layer or the like provided between a total reflection mirror 101 and a half mirror. The half mirror comprises at least a first half mirror layer 210 for selectively reflecting a first wavelengthλ1 and a second half mirror layer 220 for selectively reflecting a second wavelengthλ2 , and the first and second half mirror layers 210 and 220 are arranged apart different optical lengths from the total reflection mirror 101. A first resonance part is formed of the total reflection mirror 101 and the first half mirror layer 210, and a second resonance part is formed of the total reflection mirror 101 and the second half mirror layer 220. A basic wavelength light reinforced by each resonance part is added in color and emitted.