Laminate type light-emitting diode device, and reflection type light-emitting diode unit
First Claim
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1. A laminate type light emitting diode device including a plurality of reflection type light emitting diode units, each unit comprising:
- a light emitting diode,a dichroic mirror,a lead frame formed of high thermal conductive material to which the light emitting diode is secured,a spacer interposed between the lead frame and the dichroic mirror for adjusting the distance between the light emitting diode and the dichroic mirror for matching the focal position of the dichroic mirror with the arrangement position of the light emitting diode,a metal hollow holder case having high thermal conductivity in which the light emitting diode and the dichroic mirror are arranged so as to face each other, said spacer being separate from said holder case, anda joint member formed of electric insulating material extending from within the holder case of one light emitting diode unit to within the holder case of another light emitting diode unit,wherein the holder case of one reflection type light emitting diode unit is joined to the holder case of another reflection type light emitting diode unit of the plurality of reflection type light emitting diode units so that said reflection type light emitting diode units are stacked and unified into one body to form the laminate type light emitting diode device in which the light from each unit is coaxial and combined.
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Abstract
A laminate type light emitting diode device having excellent heat radiation performance and high output capability is provided. A plurality of reflection type light emitting diode units 10 each of which includes a light emitting diode 2 and a dichroic mirror 3 in a hollow metal holder case 5 having high thermal conductivity so as to face each other are joined to one another through joint members 4 formed of electrical insulating material, thereby constructing the laminate type light emitting diode device 100.
70 Citations
13 Claims
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1. A laminate type light emitting diode device including a plurality of reflection type light emitting diode units, each unit comprising:
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a light emitting diode, a dichroic mirror, a lead frame formed of high thermal conductive material to which the light emitting diode is secured, a spacer interposed between the lead frame and the dichroic mirror for adjusting the distance between the light emitting diode and the dichroic mirror for matching the focal position of the dichroic mirror with the arrangement position of the light emitting diode, a metal hollow holder case having high thermal conductivity in which the light emitting diode and the dichroic mirror are arranged so as to face each other, said spacer being separate from said holder case, and a joint member formed of electric insulating material extending from within the holder case of one light emitting diode unit to within the holder case of another light emitting diode unit, wherein the holder case of one reflection type light emitting diode unit is joined to the holder case of another reflection type light emitting diode unit of the plurality of reflection type light emitting diode units so that said reflection type light emitting diode units are stacked and unified into one body to form the laminate type light emitting diode device in which the light from each unit is coaxial and combined. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A laminate type light emitting diode device including a plurality of reflection type light emitting diode units, each unit comprising:
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a light emitting diode, a dichroic mirror, a lead frame formed of high thermal conductive material to which the light emitting diode is secured, a spacer interposed between the lead frame and the dichroic mirror for adjusting the distance between the light emitting diode and the dichroic mirror for matching the focal position of the dichroic mirror with the arrangement position of the light emitting diode, a metal hollow holder case having high thermal conductivity in which the light emitting diode and the dichroic mirror are arranged so as to face each other, and a joint member formed of electric insulating material by which the holder case of one reflection type light emitting diode unit is joined to the holder case of another reflection type light emitting diode unit of the plurality of reflection type light emitting diode units so that said reflection type light emitting diode units are stacked and unified into one body to form the laminate type light emitting diode device in which the light from unit is coaxial and combined, wherein the lead frame has an annular portion, and a cylindrical member having substantially the same diameter as the annular portion of the lead frame is used as a spacer.
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11. A reflection type light emitting diode unit comprising:
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a light emitting diode; a dichroic mirror; a lead frame formed of high thermal conductive material to which the light emitting diode is secured; a spacer interposed between the lead frame and the dichroic mirror for adjusting the distance from the light emitting diode to the dichroic mirror and for matching the focal position of the dichroic mirror with the arrangement position of the light emitting diode; and a joint member formed of electric insulating material for allowing a metal hollow holder case of one reflection type light emitting unit to be joined to the holder case of another reflection type emitting diode unit, said joint member extending from within the holder case of one light emitting diode unit to within the holder case of another light emitting diode unit, wherein the spacer is separate from the holder case, and the light emitting diode and the dichroic mirror are arranged so as to face each other in the holder case having high thermal conductivity and the light output coaxial with the focal direction of the dichroic mirror. - View Dependent Claims (12, 13)
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Specification