An LED lighting device includes a plurality of LED chips and a pair of side mounting faces. The distance between the side mounting faces becomes smaller from the base side toward the extremity side in the x direction. The side mounting faces face mutually opposite sides in the y direction. Also, the
An LED lighting device includes a plurality of LED chips and a pair of side mounting faces. The distance between the side mounting faces becomes smaller from the base side toward the extremity side in the x direction. The side mounting faces face mutually opposite sides in the y direction. Also, the distance between the side mounting faces becomes shorter from the back side toward the front side in the z direction that is perpendicular to both the x direction and the y direction. The plurality of LED chips include LED chips mounted on the pair of side mounting faces. The LED lighting device illuminates an illumination target with a uniform illuminance distribution.
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1. An LED lighting device comprising: a plurality of LED chips; anda pair of first side mounting faces configured such that a distance between the first side mounting faces becomes shorter from a base side toward an extremity side in a first direction, that the first side mounting faces face mutuall
1. An LED lighting device comprising: a plurality of LED chips; anda pair of first side mounting faces configured such that a distance between the first side mounting faces becomes shorter from a base side toward an extremity side in a first direction, that the first side mounting faces face mutually opposite sides in a second direction that is perpendicular to the first direction, and that the distance between the first side mounting faces becomes shorter from a back side toward a front side in a third direction that is perpendicular to both the first and second directions,wherein the plurality of LED chips include LED chips belonging to a pair of first side lighting groups mounted on the pair of first side mounting faces,the LED lighting device further comprising a pair of second side mounting faces configured such that a distance between the second side mounting faces becomes shorter from the base side toward the extremity side in the first direction, that the second side mounting faces face mutually opposite sides in the second direction, and that the distance between the second side mounting faces becomes shorter from the back side toward the front side in the third direction, the pair of second side mounting faces being positioned on the base side in the first direction relative to the pair of first side mounting faces, and a distance between extremities of the pair of second side mounting faces being shorter than a distance between bases of the pair of first side mounting faces,wherein the plurality of LED chips include LED chips belonging to a pair of second side lighting groups mounted on the pair of second side mounting faces. 2. The LED lighting device according to claim 1, further comprising a front mounting face that is positioned between the pair of first side mounting faces in the second direction and that faces the front side in the third direction, wherein the plurality of LED chips include LED chips belonging to a front lighting group mounted on the front mounting face. 3. The LED lighting device according to claim 2, further comprising a mounting bracket having the pair of first side mounting faces and the front mounting face. 4. The LED lighting device according to claim 3, further comprising a power source unit for lighting the plurality of LED chips, wherein the mounting bracket has a hollow portion positioned on the back side relative to the front lighting group in the third direction, and the power source unit is housed in the hollow portion. 5. The LED lighting device according to claim 4, wherein the mounting bracket is made up of a metal plate bent at interfaces between the pair of first side mounting faces and the front mounting face. 6. The LED lighting device according to claim 2, further comprising a front LED unit attached to the front mounting face, wherein the front LED unit includes the LED chips belonging to the front lighting group and a strip-shaped substrate on which the LED chips are mounted in a linear manner. 7. The LED lighting device according to claim 6, wherein the front LED unit includes a pair of reflectors disposed so as to sandwich the LED chips belonging to the front lighting group in a width direction of the substrate. 8. The LED lighting device according to claim 2, further comprising a lighting controller that, for each of the first side lighting groups, second side lighting groups and the front lighting group, adjusts an amount of light emitted from the plurality of LED chips. 9. The LED lighting device according to claim 1, further comprising a power source unit for lighting the plurality of LED chips, wherein the power source unit is disposed on the base side in the first direction relative to the pair of second side mounting faces. 10. The LED lighting device according to claim 1, further comprising a plurality of first side LED units attached to each of the first side mounting faces, wherein the first side LED units each include the LED chips belonging to the corresponding one of the first side lighting groups and a strip-shaped substrate on which the LED chips are mounted in a linear manner. 11. The LED lighting device according to claim 10, wherein the first side LED units each include a pair of reflectors disposed so as to sandwich the LED chips belonging to the corresponding one of the first side lighting groups in a width direction of the substrate. 12. The LED lighting device according to claim 1, further comprising a light transmitting cover that houses the pair of first side mounting faces and that transmits light from the plurality of LED chips. 13. The LED lighting device according to claim 12, wherein the light transmitting cover has a light-diffusing face. 14. The LED lighting device according to claim 1, further comprising an attachment face that is positioned on the base side in the first direction relative to the pair of first side mounting faces and in which a distance between the attachment face and the pair of side mounting faces becomes shorter toward the back side in the third direction. 15. The LED lighting device according to claim 1, further comprising a lighting controller that, for each of the first side lighting groups, adjusts an amount of light emitted from the plurality of LED chips. 16. The LED lighting device according to claim 1, further comprising a lighting controller that, for each of the first side lighting groups and the second side lighting groups, adjusts an amount of light emitted from the plurality of LED chips. 17. An LED lighting device comprising: a plurality of LED chips;a plurality of mounting faces facing different directions; anda lighting controller,wherein the plurality of LED chips are grouped so as to each belong to any one of a plurality of lighting groups respectively mounted on the plurality of mounting faces, andthe lighting controller adjusts, for each of the lighting groups, an amount of light emitted from the plurality of LED chips,wherein the plurality of mounting faces include a pair of first side mounting faces, and the first side mounting faces are configured such that a distance between the first side mounting faces becomes shorter from a base side toward an extremity side in a first direction, that the first side mounting faces face mutually opposite sides in a second direction that is perpendicular to the first direction, and that the distance between the first side mounting faces becomes shorter from a back side toward a front side in a third direction that is perpendicular to both the first and second directions, andwherein the plurality of mounting faces include a pair of second side mounting faces, and the second side mounting faces are configured such that a distance between the second side mounting faces becomes shorter from the base side toward the extremity side in the first direction, that the second side mounting faces face mutually opposite sides in the second direction, and that the distance between the second side mounting faces becomes shorter from the back side toward the front side in the third direction, the pair of second side mounting faces are positioned on the base side in the first direction relative to the pair of first side mounting faces, and a distance between extremities of the pair of second side mounting faces is shorter than a distance between bases of the pair of first side mounting faces. 18. The LED lighting device according to claim 17, wherein the plurality of mounting faces include a front mounting face, and the front mounting face is positioned between the pair of first side mounting faces in the second direction and faces the front side in the third direction. 19. The LED lighting device according to claim 17, wherein at least two lighting groups from among the plurality of lighting groups are arranged in the first direction on at least one mounting face from among the plurality of mounting faces. 20. The LED lighting device according to claim 17, further comprising a plurality of LED units attached to each of the mounting faces, wherein the LED units each include a plurality of LED chips belonging to any one of the lighting groups and a strip-shaped substrate on which the LED chips are mounted in a linear manner. 21. The LED lighting device according to claim 20, wherein the LED units each include a pair of reflectors disposed so as to sandwich the plurality of LED chips belonging to any one of the lighting groups in a width direction of the substrate. 22. The LED lighting device according to claim 17, further comprising a mounting bracket having the plurality of mounting faces, a support bracket that supports the mounting bracket, and an attachment bracket that holds the support bracket, wherein the attachment bracket has an attachment face on a base side in a first direction and is configured to hold the support bracket such that an attachment orientation of the support bracket with respect to the attachment face can be changed. 23. The LED lighting device according to claim 17, further comprising a light transmitting cover that houses the plurality of mounting faces and that transmits light from the plurality of LED chips. 24. The LED lighting device according to claim 23, wherein the light transmitting cover has a light-diffusing face.
Kishimura, Toshiji; Kishimura, Harumi; Matsuno, Yasuhisa; Abe, Satoshi; Takahashi, Toshifumi; Tsunashima, Toshiyuki; Osawa, Masakatsu; Hotta, Noboru, Light source for white color LED lighting and white color LED lighting device.
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