The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 15, 2024
Filed:
Feb. 06, 2019
Sony Corporation, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
A light emitting element includes a stacked structure including, in a stacked state, a first light reflection layerin which a plurality of thin films is stacked, a light emitting structure, and a second light reflection layerin which a plurality of thin films is stacked. The light emitting structure includes a first compound semiconductor layer, an active layerand, a second compound semiconductor layerwhich are stacked. The light emitting structureis formed with a light absorbing material layer() in parallel to a virtual plane occupied by the active layer. Let the oscillation wavelength be λ, let the equivalent refractive index from the active layer to the light absorbing material layer be n, let the optical distance from the active layer to the light absorbing material layer be L, and let Λ≡{(2m+1)λ}/(4n) (where m is an integer of equal to or more than 0), then, the value of Lis a value different from Λ, and the thickness Tof the second light reflection layeris a value different from the theoretical thickness Tof the second light reflection layer