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A two bulb mercury vapor lamp apparatus includes a housing with a bottom whose cross-section forms a curved "M" shape. A pair of reflectors are attached to the bottom of the housing with each reflector positioned in one-half of the "m". The reflectors direct light from the bulbs onto a focal plane w

A two bulb mercury vapor lamp apparatus includes a housing with a bottom whose cross-section forms a curved "M" shape. A pair of reflectors are attached to the bottom of the housing with each reflector positioned in one-half of the "m". The reflectors direct light from the bulbs onto a focal plane where a photosensitive material is located. A plurality of quartz liquid coolant circulating tubes are positioned between the bulbs and the photosensitive material which tubes both cool the lamp and filter out infrared rays. The coolant tubes are attached to a pair of end blocks which are removably secured to the housing. The end blocks, connected plumbing lines and coolant tubes can be lowered from the housing intact, thus greatly facilitating maintenance access to the bulbs and reflectors.

대표청구항 ▼

1. An apparatus for directing and focusing light from a pair of high intensity light sources, comprising: (a) a housing with a pair of reflectors collectively forming a curved "M" shape in cross-section being attached thereto, with one light source positioned within each reflector; (b) a plurali

1. An apparatus for directing and focusing light from a pair of high intensity light sources, comprising: (a) a housing with a pair of reflectors collectively forming a curved "M" shape in cross-section being attached thereto, with one light source positioned within each reflector; (b) a plurality of transparent coolant circulating tubes positioned between the light sources and a focal plane of said reflectors, said tubes having circulated therethrough a light filtering fluid which filters a selected spectrum portion of said light from said sources to said focal plane; (c) said housing comprising a center protuberance forming the center of said "M" shape, said protuberance including a pair of lips adapted to receive respective ends of said reflectors, said housing including bottom ledges which form the ends of said "M" shape; and (d) said reflectors are attached to said housing by inserting one end of each reflector into a respective one of said lips and securing the other end of each said reflector via a reflector retaining channel which is removably secured to a respective one of said housing bottom ledges. 2. An apparatus as in claim 1, wherein said focal plane is coincident with a photosensitive material to be cured, and wherein: (a) said coolant circulating tubes filter out infrared radiation from said light sources. 3. An apparatus as in claim 2, wherein: (a) said light sources comprise mercury vapor bulbs. 4. An apparatus as in claim 2, wherein: (a) said reflectors are attached to the bottom of said housing, a cross-section of which forms said "M" shape; and (b) said coolant circulating tubes are connected to a pair of end blocks which are adapted to be removably connected to said housing. 5. An apparatus as in claim 4, wherein: (a) said housing comprises a plurality of elongate hollow portions adapted for circulating liquid coolant through said housing. 6. An apparatus as in claim 5, wherein: (a) ordinary tap water is circulated through said hollow portions as said cooling fluid, while deionized water is circulated through said cooling tubes. 7. An apparatus as in claim 5, wherein: (a) said end blocks and said cooling tubes can be lowered intact from said housing to facilitate maintenance of said light sources and said reflectors. 8. An apparatus for directing and focusing light from a pair of high intensity mercury vapor bulbs, comprising: (a) a housing comprising a plurality of elongate hollow portions adapted for circulating liquid coolant through said housing, with a portion of a cross-section of said housing forming a curved "M" shape; (b) a pair of reflectors attached to said housing with each said reflector forming one half of said "M" shape, with one of said bulbs positioned within each reflector, said pair of reflectors focusing said light onto a focal plane which is coincident with a photosensitive material to be cured; (c) a plurality of transparent coolant circulating tubes positioned between the bulbs and said focal plane of said reflectors, each tube comprising two ends; and wherein (d) the ends of said coolant circulating tubes are connected to a respective pair of end blocks which are adapted to be removably connected to said housing, said tubes having circulated therethrough a light filtering fluid which filters a selected spectrum portion of said light from said bulbs to said focal plane. 9. An apparatus as in claim 8, wherein: (a) said housing comprises a center protuberance forming the center of said "M" shape, said protuberance including a pair of lips adapted to receive respective ends of said reflectors, said housing including bottom ledges which form the ends of said "M" shape; and (b) said reflectors are attached to said housing by inserting one end of each reflector into a respective one of said lips and securing the other end of each said reflector via a reflector retaining channel which is removably secured to a respective one of said housing bottom ledges. 10. An apparatus as in claim 8, wherein: (a) said end blocks and said cooling tubes can be lowered intact from said housing to facilitate maintenance of said light sources and said reflectors. 11. An apparatus as in claim 8, wherein: (a) said housing comprises a plurality of elongate apertures which accommodate corresponding perforated air circulating tubes for additional cooling. 12. An apparatus as in claim 8, wherein: (a) ordinary tap water is circulated through said hollow portions as said liquid coolant, while deionized water is circulated through said coolant circulating tubes. 13. An apparatus for directing and focusing light from a pair of high intensity light sources and comprising: (a) a pair of reflectors forming a curved "M" shape in cross-section, with one light source positioned within each reflector; (b) a plurality of coolant circulating tubes positioned between the light sources and a focal plane of said reflectors; (c) said focal plane being coincident with a photosensitive material to be cured and said coolant circulating tubs also filtering out infrared radiation from said light sources; (d) said housing including a center protuberance forming the center of said "M" shape, said protuberance including a pair of lips adapted to receive respective ends of said reflectors, said housing including bottom ledges which form the ends of said "M" shape; (e) said reflectors being attached to said housing by inserting one end of each reflector into a respective one of said lips and securing the other end of each said reflector via a reflector retaining channel which is removably secured to a respective one of said housing bottom ledges; (f) said housing including a plurality of elongate hollow portions adapted for circulating liquid coolant through said housing; and (g) said housing including a plurality of elongate apertures which accommodate corresponding perforated compressed air circulating tubes for additional cooling. 14. An apparatus as in claim 13, wherein: (a) said reflectors each include a plurality of reflector perforations; and (b) the perforations in said air circulating tubes feed air into said housing above said reflectors, which, in turn feed air through said reflector perforations onto said light sources. 15. An apparatus for directing and focusing light from a pair of high intensity mercury vapor bulbs and comprising: (a) a housing including a plurality of elongate hollow portions adapted for circulating liquid coolant through said housing, with a portion of a cross-section of said housing forming a curved "M" shape; (b) a pair of reflectors attached to said housing with each said reflector forming one half of said "M" shape, with one of said bulbs positioned within each reflector, said pair of reflectors focusing said light onto a focal plane which is coincident with a photosensitive material to be cured; (c) a plurality of coolant circulating tubes positioned between the light sources and said focal pane of said reflectors, each tube comprising two ends and the ends of said coolant circulating tubes being connected to a respective pair of end blocks which are adapted to be removably connected to said housing; (d) said housing including a plurality of elongate apertures which accommodate corresponding perforated air circulating tubes are additional cooling; (e) said reflectors each including a plurality of reflector perforations; and (f) the perforations in said air circulating tubes feeding air into said housing above said reflectors, which, in turn feed air through said reflector perforations onto said bulbs. 16. In an apparatus for focusing light from elongated light source means toward a focal plane and including an elongated housing; elongated reflector means positioned within said housing; said light source means being connected to said housing and positioned within said reflector means to focus light toward said focal plane; and elongated, transparent coolant tube means positioned between said light source means and said focal plane and having a light filtering liquid circulating therethrough, the improvement comprising: (a) end blocks releasably connected to said housing; (b) said coolant tube means having opposite ends connected to said end blocks to enable intact removal of said end blocks with said tube means, for access to said light source means; (c) said housing including a plurality of passages formed therethrough for the circulation of a liquid coolant. 17. An apparatus as set forth in claim 16 wherein: (a) said reflector means is an elongated double reflector having a pair of elongated reflectors joined to form a cross-section in the shape of a curved "M"; and (b) said light source means includes a respective elongated bulb positioned in each of said reflectors to focus light from said bulb toward said focal plane. 18. In an apparatus for focusing light from elongated light source means toward a focal plane and including an elongated housing; elongated reflector means positioned within said housing; said light source means being connected to said housing and positioned within said reflector means to focus light toward said focal plane; and elongated, transparent coolant tube means positioned between said light source means and said focal plane and having a light filtering liquid circulating therethrough, the improvement comprising: (a) end blocks releasably connected to said housing; (b) said coolant tube means having opposite ends connected to said end blocks to enable intact removal of said end blocks with said tube means, for access to said light source means; (c) said housing including an elongated aperture means in which perforated air circulating tube means are positioned including a plurality of air perforations; (d) said reflector means including a plurality of reflector perforations; and wherein (e) said air perforations communicate air through said reflector perforations to said light source means to cool same.