Lamp assembly
AssigneeNordson Corporation
InventorsQuinton Stowell, Patrick Keogh
Life of this patent
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Abstract
A lamp assembly comprising an elongate source of radiation, a reflector with an elongate reflective surface partly surrounding the source and having an opening for emission of radiation down towards a substrate for curing a coating thereon. The reflective surface has a generally concave profile and the source is located near the base of the concavity. The reflector includes two reflector elements each having a shaped surface which combines with the other when the elements are held in a first relative position to form a cavity in which the source is located and on the surface of which the reflective surface is provided. The source is mounted to be movable with one element to a second position relative the other element in which the source is located in a user accessible position.
Claims15
A lamp assembly comprising an elongate source of radiation, a reflector with an elongate reflective surface partly surrounding the source and having an opening for emission of radiation down towards a substrate for curing a coating thereon, the reflector comprising two body members each having a shaped surface which combines with the other when the body members are held in a first relative position to form a cavity in which the source is located and on the surface of which the reflective surface is provided, at least one passage through each body member for cooling water flow, and a tube for cooling water flow located in the vicinity of the emission opening wherein the or a passage in one body member is connected to the tube which is connected to the or a passage in the other body member.
A lamp assembly comprising an elongate source of radiation, a reflector with an elongate reflective surface partly surrounding the source and having an opening for emission of radiation down towards a substrate for curing a coating thereon, the reflective surface having a generally concave profile and the source being located near the base of the concavity, wherein the reflector comprises two reflector elements each having a shaped surface which combines with the other when the elements are held in a first relative position to form a cavity in which the source is located and on the surface of which the reflective surface is provided, and wherein the source is mounted such as to be movable with one element to a second position relative the other element in which the source is located in a user accessible position.
A lamp assembly as claimed in any preceding claim wherein the reflective surface has a curved generally concave profile between the edges of the emission opening and symmetrical about a centreline on which the source is located and wherein the reflector has two elongate radiation diverting surfaces extending down from the edges of the emission opening and arranged to reflect radiation reflected by the reflective surface and divert it towards the centreline.
A lamp assembly comprising an elongate source of radiation, a reflector with an elongate reflective surface partly surrounding the source and having an opening for emission of radiation down towards a substrate for curing a coating therein, the reflective surface having a curved generally concave profile between the edges of the emission opening which is symmetrical about a centreline on which the source is located, wherein the reflector has two elongate radiation diverting surfaces extending down from the edges of the emission opening and arranged to reflect radiation reflected by the reflective surface and divert it toward the centreline, thereby to reduce the angular spread of radiation reaching the substrate.
A lamp assembly as claimed in either claim 6 or claim 7 wherein the diverter surfaces extend at an angle away from the centreline.
Dependencies are inferred from the claim text.