Light flux controlling member, light emitting device, and lighting device
AssigneeEnplas Corporation
InventorsAkinobu Seki, Kyouhei Yamada, Noriyuki Kawahara, Hiroshi Takatori
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AssigneeEnplas Corporation
InventorsAkinobu Seki, Kyouhei Yamada, Noriyuki Kawahara, Hiroshi Takatori
Estimating the term…
Disclosed is a light emitting device to reduce the number of components and elements of a light emitting device and a lighting device having the light emitting device, and simplify and miniaturize the structures of these devices. With this light flux controlling member (4), a total reflecting surface (12) functions like a reflecting member, light from a light emitting element (LED, for example) (3) that is incident from an input surface (13) and that arrives at the total reflecting surface (12) is total-reflected by the total reflecting surface (12) toward the output surface (11) side (including a first output surface (11a) and second output surface (11b)), and the illuminating light from the second output surface (11b) is superimposed upon the illuminating light from the first output surface (11a), so that the light from the light emitting element (LED, for example) (3) is used efficiently and illuminates the illumination target surface (6) over a wide range.
A light flux controlling member that emits light from a light emitting element, from a location diagonally in front of an illumination target surface, diagonally with respect to the illumination target surface, a center axis of the light flux controlling member being provided to match an optical axis of the light emitting element, the light flux controlling member comprising:
Dependencies are inferred from the claim text.