| 摘要 |
A light emitting apparatus is provided to reduce a wasted excitation light from phosphor which is emitted toward an inside of the apparatus, thereby improving the luminous efficiency. A cold-cathode electron emission source(16) and phosphor(6) are oppositely-disposed in a vacuum vessel, in which the phosphor is excited by a field-emitted electron beam emitted from the cold-cathode electron emission source to emit an excitation light. A light emitting area with the phosphor and an unobstructed area with no phosphor are prepared on an inner surface of the transparent base material(2) forming an illustration surface. A reflection surface is provided on an electron beam-irradiated surface of the phosphor to reflect the excitation light from the phosphor.
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