发光元件，发光装置，和电子装置。
Light emitting element, light emitting device, and electronic device.
空间的中心被天花板灯槽内的一系列发光装置点亮。
The middle part of the space is lit by a series of light fixtures placed in recesses of the ceiling.
面发光装置，制造面发光装置的方法，以及光学器件。
Area light emitting device, method for manufacturing area light emitting device, and optical device.
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