Light-emitting diode-type illumination device
Provided is a light-emitting diode-type illumination device with which it is possible to irradiate a broad area with light irradiated from an LED light source. The light-emitting diode-type illumination device comprises an illuminance stimulating means for confining light irradiated from the LED light source in a light-confining means, and stimulating the illuminance of the confined light before irradiating said light.
1. A light emitting diode illumination device comprising:
an LED illumination tube provided with a total luminous flux transmission plate facing in a light irradiation direction;
an LED element provided on an installation opposite facing the total transmission plate in the LED illumination tube; and
a light reflecting member provided with a light for collecting and reflecting surface the light emitted from the LED element, wherein
the light reflecting member is disposed to extend in the light irradiation direction symmetrically or asymmetrically with respect to a center line of the LED element, and
the light reflecting member is configured to form light confinement means for confining the light from the LED element and has illuminance activation means for activating the light confined in the light confinement means, and
the light confinement means comprises a recess provided in the light reflecting member facing the total light beam transmitting plate, and the illuminance activation means is provided in the recess.
2. The light emitting diode illumination device according to claim 1 , wherein the light reflecting member comprises a light collecting reflection surface configured to direct the light emitted from the LED element to an outside of the LED illumination tube through the total luminous flux transmitting plate, and a pseudo LED element formation surface configured to reflect the LED element as a pseudo LED element.
3. The light emitting diode illumination device according to claim 1 , wherein the light reflecting member comprises a first reflecting member extending in the light irradiation direction symmetrically or asymmetrically with respect to the installation surface of the LED element, and a second reflecting member connected to the first reflecting member and extending along a shape of the light beam transmission plate.
4. The light emitting diode illumination device according to claim 1 , wherein the illuminance activation means further comprises a material for activating the reflected light from the light reflecting member provided inside the LED illumination tube, the material comprising a light reflecting material provided on an inner surface of the reflecting member facing the total light beam transmitting plate, and/or a light reflecting material provided on the inner surface of the recess provided in the reflecting member facing the total light beam transmitting plate, and/or a light reflecting material provided on an inner surface of a space between the total luminous flux transmitting plate and the light reflecting member.
5. The light emitting diode illumination device according to claim 1 , wherein the illuminance activation means comprises at least one of a light reflecting sheet, a light reflecting film, a light diffusing film, a light diffusing sheet, a mirror, and gold or silver plating on the light reflecting surface facing the total light flux transmitting plate.
6. The light emitting diode illumination device according to claim 1 , wherein the light reflecting member comprises a first reflecting member extending in the light irradiation direction symmetrically or asymmetrically with respect to the installation surface of the LED element, a second reflecting member connected to the first reflecting member and extending along a shape of the light beam transmission plate, and a third reflecting member positioned between the first reflecting member and the second reflecting member.