| 摘要 |
The disclosed light emitting device ( 10 ) is a stress luminescent device which emits light, without fuel and chemical light emitting material. The stress luminescent device ( 10 ) may be composed of a container ( 20 ) e.g. capsule having a space ( 40 ) therein, at least one member ( 30 ) e.g. a particle movably accommodated in the space ( 40 ) and a stress luminescent material contained in/on the member ( 30 ) or in/on the container ( 20 ). The stress luminescent material emits light when a mechanical force is added thereto or to the stress luminescent device ( 10 ) by a manual power or a vibrator. If the mechanical force is given to the stress luminescent device ( 10 ) by a manual handling such as shaking, rotating, swinging and/or striking, any other energies including an electric power is not required.
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