Light irradiating unit, lighting unit and method for manufacturing lighting unit
First Claim
1. A light irradiating unit comprisesan illuminant loading member that has illuminant loading face that can be curved and on which a plurality of illuminants are loaded, a holding frame having a curved supporting face that holds the illuminant loading member and a tabular heat-dissipating member having at least a surface flexible and adhesive to enable the surface to tightly attach to a back face of the illuminant loading face by transforming itself to conform and wrap around a lead wire of the illuminant or an electronic component projecting from the back side of the illuminant loading face, the tabular heat-dissipating member has a characteristic of keeping its shape along a direction of its thickness when affixed on the curved illuminant loading face, and characterized by the heat-dissipating member being generally tightly attached to the back face of the illuminant loading face and the supporting face of the holding frame that faces to the back face of the illuminant loading face respectively and the illuminant loading face is held in a curved state along the supporting face.
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0 Petitions
Accused Products
Abstract
A light irradiating unit is provided which is easy to manufacture with a large light production that is stable in luminous intensity and superior in life duration. The light irradiating unit comprises an illuminant loading member that has a curved illuminant loading face on which a plurality of illuminants are loaded, a holding frame that holds the illuminant loading member and a tabular heat-dissipating member that has predetermined elasticity and/or flexibility. The heat-dissipating member is attached to a back face of the illuminant loading member and a supporting face of the holding frame that faces to the back face of the illuminant loading face respectively by making use of its elasticity and/or flexibility.
41 Citations
12 Claims
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1. A light irradiating unit comprises
an illuminant loading member that has illuminant loading face that can be curved and on which a plurality of illuminants are loaded, a holding frame having a curved supporting face that holds the illuminant loading member and a tabular heat-dissipating member having at least a surface flexible and adhesive to enable the surface to tightly attach to a back face of the illuminant loading face by transforming itself to conform and wrap around a lead wire of the illuminant or an electronic component projecting from the back side of the illuminant loading face, the tabular heat-dissipating member has a characteristic of keeping its shape along a direction of its thickness when affixed on the curved illuminant loading face, and characterized by the heat-dissipating member being generally tightly attached to the back face of the illuminant loading face and the supporting face of the holding frame that faces to the back face of the illuminant loading face respectively and the illuminant loading face is held in a curved state along the supporting face.
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4. A lighting unit comprising
a plurality of illuminants, a toric print substrate that can be curved along a direction of its thickness and that has a cutout at a part thereof in a tabular state or a generally tabular state and plurality of the illuminants are mounted on an illuminant loading face set on one face of the print substrate, a heat-dissipating member that is in a same shape or in a generally same shape in a plane view as that of the print substrate and at least a surface of the heat-dissipating member is so flexible and adhesive that the surface can tightly attach to a back face of the illuminant loading face by transforming itself to dent so as to wrap around a lead wire of the illuminant or an electronic component projecting from the back side of the illuminant loading face, the heat-dissipating member has a characteristic of keeping its shape, curving alone a direction of its thickness when placed on a tabular surface, and a holding frame that has a supporting face in a shape of a concave face of a cone frustum, and characterized by the print substrate is being held in a tabular state or a generally tabular state and a plurality of illuminants are loaded on the illuminant loading face, and then one side of the cutout of the print substrate loaded with the illuminants and the other side of the cutout are jointed or proximately held to form the print substrate in a shape of a cone frustum so that the illuminant loading face locates in a concave side, or that one side of the cutout of the print substrate and the other side of the cutout are jointed or proximately held to form the print substrate in a shape of a cone frustum so that the illuminant loading face locates in a concave side, and then a plurality of illuminants are loaded on the illuminant loading face, and the heat-dissipating member is formed to be in a shape of a cone frustum by jointing or proximately holding one side of a cutout provided on the heat-dissipating member and the other side of the cutout, and the heat-dissipating member is generally tightly attached to a back face of the illuminant loading face and the supporting face of the holding frame that faces to the back face of the illuminant loading face is held in a curved state along the supporting face.
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5. A lighting unit comprising
a plurality of illuminants, a toric print substrate curved along a direction of its thickness and that has a cutout at a part thereof in a tabular state or a generally tabular state and the plurality of the illuminants are mounted on an illuminant loading face on one face of the print substrate, a heat-dissipating member that is in a same shape or in a generally same shape in a plane view as that of the print substrate and at least a surface of the heat-dissipating member is sufficiently flexible and adhesive to tightly attach to a back face of the illuminant loading face by transforming itself to bend around a lead wire of the illuminant or an electronic component projecting from the back side of the illuminant loading face, the heat-dissipating member has a characteristic of keeping its shape as it is curved along a direction of its thickness when placed on a tabular surface, and a holding frame that has a supporting face in a shape of a concave face of a cone frustum, characterized by the print substrate being held in a tabular state or a generally tabular state and a plurality of illuminants are loaded on an illuminant loading face set on one of the faces thereof, the faces of the heat-dissipating member is attached to the back face of the illuminant loading face, one side of the cutout of the print substrate and the other side of the cutout are jointed or proximately held to form the print substrate in a shape of a cone frustum so that the illuminant loading face locates in a concave side, and the heat-dissipating member is tightly attached to the supporting face so that the illuminant loading face is held in a curved state along the supporting face.
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6. A light irradiating unit comprising:
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a plurality of light emitting diodes (LEDS);
a holding member having a surface in the shape of a hollow truncated cone that operatively mounts the LEDS to enable an application of electrical power;
a toric shaped heat-dissipating flexible member adhered on one side to the holding member, the heat-dissipating flexible member is electrically non-conducting and has a surface characteristic of conforming to indentations and projections of the holding member to maximize surface contact to facilitate heat dissipation from LEDS and;
a case with an annular cone frustum supporting face adhered to another side of the toric shaped heat-dissipating flexible member. - View Dependent Claims (7, 8, 9)
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10. A method for manufacturing a lighting unit having
a plurality of illuminants, a toric print substrate that can be curved along a direction of its thickness and that has a cutout at a part thereof in a tabular state or a generally tabular state and the plurality of the illuminants can be mounted on an illuminant loading face set on one face of the toric print substrate, a heat-dissipating member that is in a same shape or in a generally same shape in a plane view as that of the toric print substrate and at least a surface of the heat-dissipating member is flexible and adhesive so that the surface can tightly attach to a back face of the illuminant loading face by transforming itself to dent so as to wrap around a lead wire of the illuminant or an electronic component projecting from the back side of the illuminant loading face, the heat-dissipating member can be curved along a thickness direction when placed on a tabular surface, and a holding frame that has a supporting face in a shape of a concave face of a cone frustum, comprising: -
holding the print substrate in a tabular state or in a generally tabular state, loading a plurality of illuminants on the illuminant loading face, and then one side of the cutout of the print substrate loaded with the illuminants and the other side of the cutout are joined or proximately held together to form the toric print substrate in a shape of a cone frustum so that the illuminant loading face locates in a concave side, or that one side of the cutout of the print substrate and the other side of the cutout are joined or proximately held together to form the toric print substrate in a shape of a cone frustum so that the illuminant loading face locates in a concave side, and then a plurality of illuminants are loaded on the illuminant loading face, and the heat-dissipating member is formed in a shape of a cone frustum by jointing or proximately holding one side of a cutout provided on the heat-dissipating member and the other side of the cutout, and the heat-dissipating member is generally tightly attached to the back face of the illuminant loading face and the supporting face of the holding frame that faces to the back face of the illuminant loading face respectively and the illuminant loading face is held in a curved state along the supporting face.
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11. A method for manufacturing a lighting unit comprising
a plurality of illuminants, a toric print substrate that can be curved along a direction of its thickness and that has a cutout at a part thereof in a tabular state or a generally tabular state and the plurality of the illuminants can be mounted on an illuminant loading face set on one face of the print substrate, a heat-dissipating member that is in a same shape or in a generally same shape in a plane view as that of the toric print substrate and at least a surface of the heat-dissipating member is flexible and adhesive to enable the surface to tightly attach to a back face of the illuminant loading face by transforming itself to dent so as to wrap around a lead wire of the illuminant or an electronic component projecting from the back side of the illuminant loading face, the, shape of the heat-dissipating member is maintained while curved along a direction of the thickness of the heat-dissipating member when placed on a tabular surface and that can be curved along a direction of the tabular thickness, and a holding frame that has a supporting face in a shape of a concave face of a cone frustum, and characterized by the toric print substrate being curved along a direction of the toric print substrate thickness and that has a cutout at a part thereof held in a tabular state or a generally tabular state, a plurality of the illuminants are loaded on an the illuminant loading face set on one of the faces thereof, the heat-dissipating member that is in a same shape or in a generally same shape in a plane view as that of the print substrate is curved and tightly attached to a the back face of the illuminant loading face of the toric print substrate, and one side of the cutout of the print substrate loaded with the illuminants and the other side of the cutout are joined or proximately held to form a shape of a cone frustum so that the illuminant loading face locates in a concave side, and the heat-dissipating member is generally tightly attached to the supporting face of the holding frame and the illuminant loading face is held in a curved state along the supporting face.
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12. A method of manufacturing a lighting unit for inspecting a surface, the lighting unit having an opening at the center thereof for visually inspecting the surface to be inspected, wherein said method comprises the steps of:
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providing a flexible circular printed substrate having a concentric circular hole and a cutout which has at least two sides in a planar state, embedding a plurality of illuminants in said printed circuit board, joining one side of the cutout and the other side of the cutout of said printed substrate or holding both sides in close contact so as to form the printed substrate into a shape of a hollow truncated cone with the plurality of illuminants placed in a side of a concave face of said printed substrate;
providing a solid tone shape heat-dissipating member with an opening, the solid toric shape heat-dissipating member having adhering surfaces;
providing a case with a center hole and a annular cone frustum supporting face;
tightly attaching the printed substrate to the annular cone frustum supporting face with the solid tone shape heat-dissipating plate; and
positioning a frame about said printed substrate and retaining said printed substrate in said shape of a hollow truncated cone as to obtain the lighting unit in which the plurality of illuminants are arranged on the concave face of the printed substrate formed into the shape of a hollow truncated cone.
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Specification