| 摘要 |
<p>PROBLEM TO BE SOLVED: To detect light distribution fluctuation caused by ambient temperature change of a light emitting element.SOLUTION: A light emitting element 50A which is formed between a positive electrode 84 and a negative electrode 82 includes an organic compound 83 which emits light when the positive electrode 84 and the negative electrode 82 are applied with a voltage, a semi-transparent reflection part 85 which is formed on the positive electrode 84 and has an optical resonator structure along with the negative electrode 82, allowing transmission of the light of different spectral radiation luminance by ambient temperature, a transparent part 86 which is formed on the semi-transparent reflection part 85, and emits a part of the transmission light of the semi-transparent reflection part 85 to the outside while totally reflecting the light incident on an interface to the outside at an angle larger than a critical angle among the transmission light of the semi-transparent reflection part 85, and a light receiving part 51A which is arranged so that the light that is totally reflected on the interface can enter, and changes incident light quantity according to wavelength change of the transmission light of the semi-transparent reflection part 85, for outputting a signal having an amplitude level related to the incident light quantity.</p> |
