MXPA97005476A - Apparatus and highly efficient lighting method and highly controls - Google Patents

Abstract

The present invention relates to a lighting fixture for illuminating a target area of a certain configuration and a substantial size with a substantial amount of light intensity, which artifact is characterized by: a housing for the artifact having a substantially transparent front lens; - a mounting or mounting to which the housing is connected, the assembly includes means for adjusting the position of the housing in relation to the assembly, - a lighting source or high intensity light placed in the housing, the lighting source has a length; a primary reflector placed generally along the length of the illumination source, at or near the illumination source, in the same order as the size of the illumination source and which collects the light from one side of the illumination source - a mounting or mounting for the light source and for the primary reflector - connectors between the mounting The illumination source and the primary reflector, which allow adjustment of the position and orientation of the illumination source and the primary reflector relative to a secondary reflector, the secondary reflector is positioned in the housing, is of a substantial size. greater than the primary reflector, is spaced from the light source and extends around an opposite side of the illumination source from the primary reflector, the secondary reflector includes a frame, a reflecting surface held in position along the frame and facing the front lens to form a secondary reflecting surface, generally continuous, curved in a plane generally radial to the length of the illumination source; connectors between the frame and the housing, which allow the orientation of the frame relative to the housing to be adjusted The primary reflector directs its collected light towards the secu reflector standard, and the secondary reflector produces a highly controlled composite light beam, formed by the reflection of light from the reflecting surface, the beam emanates through the lens of the housing.

Description

APPARATUS AND HIGHLY EFFICIENT, AND HIGHLY CONTROLLED LIGHTING METHOD DESCRIPTION OF THE INVENTION The total contents, including specifications and drawings of U.S. Patents No. 5,337,221 and No. 5,343,374 commonly assigned and co-pending with the applications of Series No. 08 / 242,745 filed on May 13, 1994; U.S. Serial No. 08 / 242,746, filed May 13 and U.S. Serial No. 07 / 820,486, filed on January 14, 1992, are incorporated herein by reference. The present invention relates to lighting relatively large areas or targets, and in particular, to the use of high intensity light sources to illuminate such areas or objectives in a highly efficient and still highly controllable manner. There are many cases where highly efficient and highly controllable high intensity lighting can be advantageous. Many methods of high intensity lighting are known. Most use some type of a relatively high attacker arc lamp and a reflector system that attempts to direct part of the light from the arc lamp to a target area. One example is the commonly used arc lamp mounted axially in a ball-shaped hemispherical reflector. This type of known lighting is described in detail in U.S. Patents 5,343,374 and 5,337,221. - Since this type of installation can produce a beam of relatively high intensity, controlled and concentrated, the nature of the installation presents some difficulties with respect to efficiency and control. Such installations are usually raised to at least several tens of feet and then directed to the target location. Since the reflector is symmetrical, some beam of light falls directly on the target area but another beam of light falls outside the target area. Such a beam of light is known as antidiffusion light. This reduces the beneficial use of the light beam because the beam of light that can otherwise be used in the target area, and which is produced by the installation, does not end all in the target area. Additionally, although it is thought that such facilities produce a relatively controlled, concentrated beam, the nature of the light is such that even such a beam can not be precisely collimated at large distances and therefore there is some scattered beam and scattering of light. It is therefore difficult to carry out the sharp cut of the beam pattern of each of the installations over long distances and it is difficult to control the precise shape and other characteristof the light. It is difficult to match the light shape of the installation with the shape of the target area.

U.S. Patents 5,343,374 and 5,337,221 show and describe apparatus and methods which direct the problems of light control. Their preferred embodiments employ a light installation which may be, but is not required to be, a ball-shaped reflector, a primary reflector, and an arc lamp on the shaft. The light installation is directed away from the target area towards a secondary mirror or reflector. The mirror redirects at least a portion of the light from the primary source of light. The nature of the combination is such that it produces a controlled beam with a precise sharp cut. For this reason, on the racing car track as an example, these facilities can be placed on the ground. Each installation directs a beam of light in such a way that it covers the width of the track and still cuts at the top or very close to the upper edge of the boundary wall of the outer edge of the track. The light is therefore placed on the track instead of outside the track. This is also kept away from the eyes of the spectators. A plurality of such facilities can be placed around the interior of the track and coordinated to still produce, uniform but controlled lighting for the track. Although such systems have efficiencies, they could still be improved with respect to such devices and methods.

For example, the size of such devices is substantial. In the preferred embodiment disclosed in U.S. Patent Nos. 5,337,221 and 5,343,374, the light produced by the installations is essentially the same size as conventional ball-shaped installations with arc lamps on the shaft. For example, the reflector may have several feet in diameter at its front. Secondary mirrors or reflectors may be in the order of several feet high by several feet in width and several feet of the light produced by the installations are separated. Additionally, those types of arrangements introduce difficulties regarding the efficiency of the use of light. All the light of the light produced by the installation can not be redirected by the secondary reflector or mirror. For example, some of the light produced by the installations may fall out of the mirror and therefore be lost. Also, the flexibility of these arrangements in terms of ease of placement and adjustability is limited. It is for this reason that the main object of the present invention is to provide a highly efficient, highly controllable installation and method of light which improves the established of the art.

A further object of the present invention is to provide an apparatus and method which efficiently uses light. Another object of the present invention is to provide highly controllable light for large areas of a relatively compact installation. Another object of the present invention is to provide flexibility with respect to operational characteristics such as adjustability of the characteristics of the light produced. Another object of the present invention is to provide flexibility with respect to directing light to a target area. These and other objects, features, and advantages of the present invention will become more apparent with reference to the accompanying specification and claims. The apparatus according to the present invention includes a high intensity light source. A primary or primary reflector is placed in or near the light source and is substantially of the same size order as the light source. A second or secondary reflector of substantially larger size than the light source redirects the direct light from the light source in a highly controlled manner to the target. The primary reflector redirects the light from the back of the light source through the light source and / or the secondary reflector for redirection in a highly controlled manner to the target area. The light source of the primary reflector and the secondary reflector can be contained within the same housing. The housing may be attached to a base which may allow adjustable orientation of the housing with respect to the objective. The base can either be placed on the ground or connected to some structure, which includes a structure that can raise the housing. The method according to the present invention includes redirecting at least a portion of the light out of the back of the light source through the light source, the redirection occurring very close to the light source. Light directly from the light source, and any light that has been redirected back through the light source, this change redirected in a highly controlled manner to the target area. The invention can be used in an individual installation or with multiple installations to produce light which is highly controlled and efficiently used by an area or objective.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of the front and right side of an apparatus according to the preferred embodiment of the present invention. Figure IA is a diagrammatic elevated view of multiple devices elevated on a pole. Figure 2 is an enlarged isolated perspective view of the apparatus of Figure 1 with the front lens shown in an open position. The long secondary reflector, and the assembly for the light source and primary reflector are partially shown inside the installation housing. Figure 3 is an elevation side view taken along line 3-3 of Figure 4. Figure 4 is an elongated top plan view of the mounted light source of Figure 2. Figure 5 is a high rear view taken along line 5-5 of Figure 4. Figure 6 is a reduced simplified front high view of Figure 2. Figure 7A is a side elevational diagramatic view of a light source of a primary reflector, curved, separated.

Figure 7B is a diagrammatic view in side elevation of a light source and a flat surface, the separate primary reflector. Figure 7C is a diagrammatic view in side elevation of a light source and a primary reflector in the form of a coating. Figure 8 is an isolated perspective of a modality of a light source and primary reflector. Figure 9 is a perspective view of the back and left side of the apparatus of Figure 1. Figure 9A is an enlarged perspective view of the housing of the installation of Figure 9, showing the rear pivoted wall open and the rear part of the frame that supports the secondary reflector. Figure 10 is an enlarged isolated perspective view of the reflector frame with attached segments of the secondary reflector. Figure 11 is an elongated side elevation of a mirror segment and connection components of one end of the frame segment of Figure 10 taken generally from the point of view of line 11-11 of Figure 10. Figure HA is a cross-sectional view taken along line 11A-11A of Figure 11.

Figure 12 is an elongated partial rear elevation of Figure 12 taken along line 12-12 of Figure 10. Figure 13 is an elongated cross-sectional view of the interior portion of the housing of Figure 9 showing the location of the frame of the elongated reflector in the housing, taken generally along line 13-13 of Figure 9. Figure 14A is an elongated isolated view of the elevated side of the elongate secondary reflector and the frame showing the line diagrammatically as shown in FIG. length of which the segments of the individual reflector are located. Figure 14B is similar to Figure 14A but shows alternative reflector segments for those of Figure 14A. Figure 15 is a rear elevational view of the interior of the installation housing with the rear wall removed, showing the mounting of the secondary reflector on supports that allow the adjustability of the frame of Figure 10 in the installation. Figure 16 is a view similar to Figure 15 but showing the frame of Figure 10 adjustable inclined in the installation.

Figure 17 is a vertical cross-sectional view through the installation of Figure 1 showing how the support pole is mounted to the lower trunnion box. Figure 18 is a cross-sectional view taken along line 18-18 of Figure 9. Figure 19 is a top plan view of a race track diagrammatically showing an example of positioning the apparatus according to the Figure 1 around the inside of the track. Figure 20 is a diagrammatic side elevational view illustrating the creation of a defined cut for the beam of an installation according to the preferred embodiment. A. Observations For a better understanding of the invention, a preferred embodiment will be described in detail. The preferred embodiment discussed is a form which the invention may or may not take and which is not intended to limit the forms which the invention may take. Frequently the reference will be taken from the attached drawings. The reference numbers will be used to indicate certain parts and locations in the drawings. The same reference numbers will be used to indicate the same parts and locations through the drawings unless otherwise indicated.

Examples of specific uses of the present invention can be found in U.S. Patents 5,337,221 and 5,343,374. As an example, the present invention can be advantageously employed for a target area such as a racing car track. Other examples include sports fields or lighting of courts, lighting of roads or intersections, and other jobs where highly efficient and highly controllable high intensity lighting is needed or desired. The invention can be beneficially used in most lighting applications. B. General Structure of the Preferred Modality Figure 1 illustrates the installation 10 according to a preferred embodiment of the invention. The housing 12 has an upper part 14, a lower part 16, a left side 18, a right side 20, a back part 22 (all of stainless steel), and a front part 24. In this embodiment, it will be understood that the front part 24 consists of a window or lens substantially transparent inside a stainless steel frame 26 that is joined to and forms a portion of the housing 12. A base, generally designated 28 is essentially a double journal in a direction that the fork 30 is pivotably mounted to the sides 18 (see pivot connection). 32) and 20 of the housing 12 to allow the housing 12 to pivot about a horizontal axis (see arrow 40) defined by pivot connections 32 (see Figure 6); and the fork 30 (having arms spaced apart from each other vertically extending from a trunnion housing below the housing 12) instead is rotatable in the post 42 defining a vertical axis (see arrow 44). The post 42 is instead mounted rigidly on the floor 46 in such a way that the total installation 10 can be placed close to the ground. Alternatively, the post 42, or some similar arrangement can be mounted on almost any type of support, even those which are raised. One example may be the mounting of several installations 10 on a cross arm 48 raised on a pole 50 (see Figure IA). Each installation 10 in Figure IA can be rotatable and / or incunable. It is understood, however, that the use of a stump assembly is not required and the housing 12 may be assembled in a number of ways, within the experience of those skilled in the art, for some support structure or for any variety of type of bases. As seen in Figure 1, the installation 10 is therefore a self-contained unit which produces a light outside the components contained within the housing 12. In the preferred embodiment, the housing 12 has a width of 75.56 cm ( 29 3/4") by a height of 86.36 cm (34") by 48.89 cm (19 1/4") in the bottom Other configurations and dimensions are of course possible The materials used for housing 12 are not critical. They may be metal sheets The materials for the base parts 28 are likewise not critical In the preferred embodiment they are made of metal bars and tubes Figure 2 illustrates the front lens 24 pivoted open on the hinge 52 (FIG. with latches 56 released.) The latches 56 are erected or otherwise connected to the housing 12 and have a protruding middle finger with a flange at the end which holds the door 24 closed.The fingers on each side of the middle finger avoid being pulled away from the sides and put bending pressure on the glass. The front door (lens 249 and the front perimeter of the housing 12 have extended contact flanges and a silicone gasket to create a seal when closed.) The latches 56 secure the closed door 24 but are easy to operate to open the door 24. The interior of the housing 12 is included which will generally be referred to as a light source assembly 58 (metal or ceramic) suspended in opposingly extending steel rollers 60 and 62 which are connected to the outer ends of the steel arms 64. and 66. A secondary reflector (generally designated 70) is separated from each other but placed around one side of the light source assembly 58 opposite the lens 24. The precise shape and size of the reflector 70 may vary. Secondary reflector 70 can be made larger than the one shown in Figure 2. These ends can extend much farther from the front and forward of the light source assembly 58 However, sometimes the size of the reflector 70 is increased resulting in marginal benefits. Therefore, the size of the reflector is minimized as much as possible without losing significant control of the light. The optional side reflectors 72 and 74 (on each inner left and right side of the housing 12) can be used. The reflectors 72 and 74 are mounted on the frame (not shown) which are attached to the vertical roller 73. Electrical power is supplied to the mounting of the light source 58 by the wires 76. It will be understood that other electrical components, such as compensating elements, fuses, switches, etc., can be placed externally of the housing 12, such as inside the die fork 30, or in other neighborhoods. For example, the horizontal section of the trunnion fork 30 (called trunnion housing) can accommodate the compensating elements and other components. The components that produce heat, particularly the compensating components, can be placed outside the housing 12 to reduce thermal problems through the installation 10.

Figures 3-5 show in detail the assembly of the light source 58 and the associated components. A light source 80, hereby an arc tube 82 (approximately 2.85 cm (1 1/8") in diameter, 11.43 cm (4 1/2") long) surrounding the electrodes 84 and 86, is placed generally horizontally between the arms 88 and • 90 which extend rearwardly of the mounting body 92. The rear facing side of the arc tube 82 is exposed and faces the reflector 70. As shown in Figure 3 , the front, front facing side of the arc tube 82 is surrounded by a reflector 94 which is positioned very close to or leans towards and only slightly larger than the arc tube 82. The reflector 94 may be curved (see Figure 7A and 8), flattened (see Figure 7B), or form a coating or layer in the arc tube 82 (see Figure 7C). The preferred embodiment is in the order of 2.85 cm (1 1/8") high by 0.31 cm (1/8") wide by 27.94 cm (11.0") high, also referring to Figure 2 together with the Figures 3-5, it can be seen that the mounting body 92 effectively locks the arc tube 82 from the front view of the installation 10. Exposure to the back of the arc tube 82 and reflector 94 ensures that most or all of the Direct light from the arc tube 82 to the reflector 70 is controlled reflectively by the reflector 70.

It is also understood that the shape and proximity of the reflector 94 to the arc tube 82 directs a substantial amount of light from the arc tube 82 that does not go directly to the reflector 70, returns through the arc current of the arc tube 82 and / or to the reflector 70. In the preferred embodiment, the arc tube 82 consists of a high intensity arc tube which is elongated and produces a somewhat elongated arc current, opposite to one that is closer to a signal source of light . It is understood, however, that a short arc current or short arc light source in the horizontal direction can produce a small beam of the installation in a horizontal direction. There are certain high intensity light sources that have very few arc currents for light sources. Some HMI lamps are of this nature. The wires 76 are connected to the electrodes 84 and 86 as shown. The insulators 77 and fasteners 79 may be employed to suspend and support the wires 76. It is understood, however, that the types of different shapes and characteristics of light sources may be employed with the present invention. The above preferred embodiment is useful in applications such as illuminating racetracks where the elongated light source employed with elongated rectangular mirror segments can create very sharp defined cuts, particularly at the top of the beams. The vertical beam spread for the preferred embodiment is a function of the diameter of the arc tube 82 and the distance between the arc tube and the apex of the reflector 70. The widest part of the beam is determined by the light rays which are tracings of the upper and lower part of the arc tube to the vertex of the reflector and their respectively reflective directions. Light rays from any position of the arc tube to any other position in the reflector 70 will fall within the vertical beam dispersion defined by the rays of the top and bottom of the arc tube reflecting from the vertex of the reflector. In the preferred embodiment, the reflector 70 has segments 100 of 10.16 cm (4") by 60.96 cm (24") placed along a parabola defined by the equation Y2 = 4fx, where x maximum = 22.22 cm (8 3 / 4"), f = 16.51 cm (6 1/2"), and y maximum = 38.10 cm (15") There is approximately 76.20 cm (30") between the upper front edge and the lower front edge of the reflector 70 (the rope between the opposite ends of the reflector 70). When installed there is approximately 0.39 cm (5/32") of separation between the adjacent edges of the segments 100. For a vertical beam spread of 10 °, the arc tube 82, which has a diameter of 2.85 cm (1 1/8") and a distance of 10.16 cm (4") between the electrodes, is placed approximately 16.51 cm (6 1/2") from the vertex a along the focal length of the reflector 70. That is why it is understood that by increasing the diameter of the light source, a larger beam can be created.Alternatively, moving the light source near the reflector 70 can create one more beam The transformation is also true, a smaller diameter of the arc tube or placing the arc tube farther away from the reflector 70 may decrease the beam.If the position of the light source is changed, the beam may be diffuse. they will have to be redirected and / or the size of the parabola changed.A feature of the installation 10 is that the beam width can be vertically adjusted to a degree without changing the position of the light source relative to the reflector 70 when adjusting the 100 segments. It is also understood that due to the relationship described above, the whole system can be made smaller or must be larger depending on the distance between the light source and the reflector. If the diameter of the light source becomes very small, it should be placed closer to the reflector 70 than one of a larger diameter. This should shorten the distance. The shortest distance will allow a smaller installation.

As will be described in more detail in the following, the use of the segments to construct the mirror 70 allows an alternative way to expand or decrease the vertical beam scattering. Each segment is individually adjusted in its orientation to the light source to be pivotable about a horizontal axis. To create a larger angle of incidence of light from the light source to a segment, a wider beam can be created. This helps in the adjustability and flexibility of the installation 10. For a properly sized racetrack for NASKAR warehouse trucks, a vertical beam dispersion of 10 ° is selected. There is not much problem about cutting the sides of the beam because the track is elongated in both directions. The relationship between the light source, the primary reflector, and the secondary reflector, as well as the size, shape and separation, all can be adjusted or selected to create certain lighting effects. In many cases, it is advantageous to match the shape of the beam with the target. Correlating the shape of the mirrors of the secondary reflector with the shape of the beam allows this to take place. In the Example of the preferred embodiment, this is carried out by having parallel surfaces between the lower part of the arc tube 82 and the upper part of each mirror segment of the secondary reflector 70, and then using some linear light source 80 and rectangular mirror segments. Other shapes and relationships can be used to create other desired lighting effects. In the preferred embodiment a metal halide arc tube of 2,000 watts is used. Other types or wattages of lamps can be used. The wattages are as low as 250 watts or even less if possible. There is no limit on the type of wattage or size of light source. The reflector 94 is placed near the outside of the arc tube 82 and is specifically coated to pass infrared radiation but reflecting 85% of visible light. In this way, the infrared radiation does not return through the arc tube 82, thus reducing heat to the seals or hot spots near the electrodes, but 85% of visible light is reflected back through the current of the arc and / or reflector 70. As shown in Figure 3, reflector 94 is constructed to adjust the perimeter of arc tube 82. Alternatively, it may be planar (Figure 7B) or in some other form. This can be slightly separated from it or alternatively it can have a direct coating on the arc tube 82 (Figure 7C). For example, this may have a dielectric, dichroic material (which passes certain wavelengths of light and reflects others) or ceramics such as aluminum oxide. The shape of the curved reflector of Figures 7A and 7C generally allows more light control and will produce a smaller beam than a flattened or elongated reflector 94 as shown in Figure 7B. However, there are many cases where a wide beam is required or desired and thus a flat or less curved reflector 94 can be employed. Additionally, curved reflectors 94 such as Figures 7A and 7C can create thermal problems which can affect the arc tube 82, such as heating the seals or other heating problems, or can affect the reflector 94 such as degrading any joint or fusion that is needed to place the reflector 94, both as separate pieces or as a coating, on the perimeter of the arc tube 82. Therefore, a material which passes infrared radiation but reflects a substantial amount of visible light, It can be advantageous The reflector 94 is relatively close to and relatively similar in size to the arc tube 82. As compared to the primary reflector described in U.S. Patents 5,337,221, and 5,343,374, placing the reflector 94 in its position relative to the arc tube 82 and causing that in dimension, the total size of the installation can be reduced significantly.

It is therefore generally advantageous to minimize the reflector 94 in a size relative to the light source. The reflector 94 is also generally very small relative to the secondary reflector 70. Again, this helps to minimize the size of the total installation. It is understood, however, that the reflector 94, the primary reflector, can be very specular. However, this may also be diffuse, such as the elaborate ceramic or ceramic coating, such as aluminum oxide. Figure 6 shows a front elevational view of the installation 10. With reference also to Figure 2, it can be seen that the individual segments 11 are placed side by side along a crow in the vertical plane. Each segment 10 extends generally horizontally across the width of the interior of the housing 12. The segments are basically about 180 ° from the suspended light source 80. As will be explained later, the position of the segments 100 relative to the source of light 80 is such that it redirects and projects light out of lens 24 in a highly efficient and controlled manner. Figure 9 illustrates a rear perspective view of the installation 10, and shows the rear panel 22, which is similar to the front panel 24 in that it can be pivotably attached in a closed, sealed position by the latches 56. With reference to Figure 9A, the rear panel 22 can be pivoted open to access the back of the reflector 70. As shown in Figure 9A, a frame 110 is employed in the preferred embodiment to create the parabolic shape of the reflector 70 and to hold the individual segments 100 in one place. The frame 110 is thus mounted to the housing 12. FIG. 10 shows the frame 110 in greater detail. A generally rectangular sub-frame 112 has two curved frames 114 and 116 attached thereto. The frames 114 and 116 follow a parabolic line 106 (see Figures 14A and 14B). The handles 118 project outwards along each curve 114 and 116 and are adjusted in such a way that the segments 100 can be connected between the corresponding handles 118 along the curves 114 and 116. Figure 10 also shows that the mounting brackets 120 are attached to each handle 118 and serve to support one end of a mirror segment 100. Also the side mirror assemblies 123 and 125 extend towards the front of each side of the frame 110 and include openings 124. Each pair of mounts 123 and 125 receive opposite ends of the vertical roller 73 (see Figure 2) allowing the side mirrors 72 and 74 are mounted inside the housing 12. The side mirrors are pivotable around the rollers 73 to alter their position affecting the horizontal width of the light beam leaving the installation 10. Figure 11 shows in more detail the structure of the support 122. A rim 128 of the support 122 is fixed between the fork bifurcation 118. A screw 180 and a sleeve 188 extend through the openings aligned in the handle 118 and the rim 128, and have a pivot axis on which the support 122 can pivot. A support bolt 126 is positioned through the aligned openings in the two adjusted forks of the handle 118 and an opening 130 curved in the flange 128. The bolt 126 is secured by a nut to the position of the closure support 122. The range of inclination of the support 122 is defined by the opening 130. In this way, until the bolts 126 of the supports 122 holding the opposite ends of a mirror segment 100 are narrowed, the mirror segment 100 can be tilted over a range commensurate with the allowed range of movement of the bolts 126 in the openings 130. Figure 11 also shows an arrangement whereby the mirror segments 100 can be mounted to the support 122 accurately and with reduced risk that may have been due to forces applied to the relatively fragile mirror segment 100 that may break due to such mounting. This also allows relatively easy and quick insertion or removal of a segment 100. The support 122 has a main portion 134 which has a C shape in the cross section. The flanges 128 extend from one side of the main portion 134. The mirror segment 100 is fixedly coupled between and can slide in the main portion 134. A flat spring 134 can be anchored by the pin, the rivet, or other fastening member 138 to the support 122 and be formed so that its opposite outer ends extend to the upper and lower edges on the rear side of the mirror segment 120. The screws 140 can then be wound through the projection nut 141 welded on the back side of the main portion 134 of the support 122 and push the opposite ends of the spring 136 against the back of the mirror 120. The bearings 142 can be placed between the front side and the lower and upper edges of the mirror 100 and the jaws of the main portion 134 and the Teflon blocks 144 can be placed on the ends of the spring 136 to provide some cushioning and protection of the mirror 100 from the forces exerted towards up by this arrangement. The Teflon stores the heat generated within the installation 10 by the source 80 of light. It is understood that by applying pressure to the upper and lower edges at the rear of the mirror segment 100 against the front jaws of the main portion 134 of the support 122, a secure assembly of the segment 100 to the frame 110 is carried out, additionally the segment It can be easily carried outwards and inwards. This also reduces the risk of applying forces or torsion in the mirror segment 100 which can lead to the breaking or fracture or arcing of the segment 100. It is noted in Figure 10 that the main body 134 of each support 122 extends on one side of the flange 128 of the support 122. In the arrangement shown in Figure 10, the supports 122 are placed in a segment 100 both to face in a direction facing the main portion 134, and in the following segment 100 to another direction. frontal. This allows the segments 100 to be placed adjacent very close to each other and when the fine adjustment of the pivoting of each segment is carried out, the supports 122 do not interfere with each other. Figure HA indicates in detail the attachment of the support 122 to a handle 118 of the frame 110. The split branches 146 and 148 of the handle 118 allow the insertion of the flange 128 of the support 122 therebetween. When the opening 130 (see Figure 11) of the flange 128 is aligned with the openings through the bifurcations 146 and 148 of the handle 118, the support pin 126 is inserted through all of those parts. Referring to Figure HA, it can be seen that the sleeve 188 (50% compression) is inserted through the aligned openings through the bifurcations 146 and 148 of the handle 118 and an opening 181 in the flange 128. washers 186 and 184 of the outside part rest on opposite ends of the sleeve 188. Both washers 186 and 184 are the number 10 washers. A 5/16"washer 190 rests with the washer 186 and surrounds one end of sleeve 188. A Bellville washer 192A and a Bellville washer 192B are positioned as shown between washer 190 and the outer side of washer 146 of handle 118. Sleeve 188 is a precise pin. the scrubbers 192A and 192B are compressed as necessary to compress the scrubbers 192A and 192B, and then exert sufficient pressure to provide sufficient clamping force of the handle branches 118 in the rim 128 of the bracket 122 to allow easy pivoting and p the flange 128 in the handle 118, but once the pivoting is carried out, the support 122 is in the exact location. Therefore the arrangement of Figure HA gives sufficient tension so that the segments can be adjusted quickly, uniformly, accurately, and easily, but remains in place until the support pins 126 are tapered.

The lock of each support 122 to the handle 118 by constriction of the nut 127 in the support pin 126 can be carried out without affecting the precise alignment of the segment 100. Figure 12 illustrates in more detail the frame 110, in particular curved frames 114 and 116. Each curved frame 114 and 116 currently consists of a portion 146 and an inner portion 148 which are held at slightly spaced apart positions by spacers 150 (welded by a point at the rear edges of the branches 148 and 146 such that the bifurcations 148 and 146 at the location of the handles 118 can move outwardly towards each other). The flanges 138 or mounting brackets 122 can then be fixed between the spaces of the branches 146 and 148 at the location of each handle 118. Figure 13 shows in detail several products associated with the installation 10. The right side of Figure 13 shows the support connection 122 to the handles 118 in greater detail. The left side of Figure 13 shows the assemblies 123 and the mirrors 74. Figure 13 also shows how the frame 110 is secured by bolts 152 to the supports 154 which are fixed to the internal part of the housing 12. The supports 156 ( see also Figure 10) are fixed to and extend outwardly from the sides of the frame 110. As seen in greater detail in Figures 15 and 16, the vertical openings 158 exist in the brackets 154. In this manner as shown in FIG. Figure 16, the total frame 110 can be inclined by the loose bolts 152 and the inclined frame 150 both on the right side as shown in Figure 16 or the left. Figure 15 shows the frame 110 and is basically in a centered position. The bolts 152 can be used to tighten the frame 110 to a desired position. Figure 14A provides a preferred transverse shape of the reflector 70 and how the segments 100 are coordinated with that shape. It is preferred that the form be parabolic. As shown in Figure 14A, the lines 102 and 104 represent the X and Y axis. The line 102 is in the plane passing through the center of the parabolic curve 106 (taken from a lateral elevation cross section) of the reflector. 70. Although parabolic shapes can be employed, a preferred form is defined by the equation X2 = 4fy, where x is equal to the horizontal distance, and is equal to the vertical distance and f is the focal point. Figure 14A shows that once the curve 106 is selected, the individual segments 100 are placed side by side in a very close orientation according to the curve 106. In the embodiment shown in Figure 14A, the segments 100 are segments of flat mirror of 10.16 cm (4 inches) high. Each is positioned in such a way that it is as close as possible to an array of line 106. In the preferred embodiment, the segments 100 are made of glass which have a rear surface with mirror. These segments are highly specular (such as a mirror) with a minimum of diffusion. The less specular surfaces that they reflect can be used. The amount of specularity depends on how much control is needed. In the example of race tracks, a high control is needed to obtain a very defined cut over a small distance between the light placed on the track and the spectators. A rear mirror surface of a piece of glass is called a second surface mirror because the mirror is on the back side (the second surface) of the glass. Some reflection of light from the front or first surface of the glass takes place (around 4% incident light). Some reflection may take place from the second glass surface (also around 4% incident light). The second surface mirrors are used because although the glass reflects some light, and a small amount of light is lost by the absorption, the glass will absorb ultraviolet radiation which can burn human eyes if it is reflected to them. A minimum amount of light will be lost because the reflections of the primary and secondary surfaces of the glass will go in the same direction as the light reflected from the mirrored surfaces. Also the surface with mirror is fragile. Therefore, by placing these on the back of the glass, the segments 100 can be cleaned without breaking or affecting the mirror surface. It is understood, however, that the first surface mirrors can be used. The problems of reflection or absorption caused by the glass are avoided. Figure 14B is identical to Figure 14A except that it shows an alternative to the segments 100 of Figure 14A. It may be preferable to follow more closely the curvature of the parabola line 106 with the mirror segments 100. Therefore, because the flat mirror segments 100 only approach the curvature, especially the curvature is more significant in the middle part of the parabola, the segments 100A can be employed which are curved in the vertical cross section for adjust the curvature at each individual location along the line 106. Therefore, the segments 100A at the outermost ends of the parabola 106 should be less curved than those near the center. The specifications of how each segment 100 or 100A joins the support 120 is shown in greater detail in Figures 10-14A and 14B. Figure 17 illustrates the mounting of the fork 30 to the post 28. A segment of pipe 160 is welded or otherwise secured around an opening 162 in the lower part of the horizontal transverse member of the fork 30. The upper part of the pipe 160 is closed except for an opening 164. The diameter of the post 28 is slightly smaller than the opening 162 and the internal diameter of the pipe 160. The yoke 130 can then be placed down on the post 28. The opening 164 allows the wiring 166 pass out from fork 30 to post 28 and down into the ground. Figure 18 shows in detail a pivot connection 32 between the fork 30 and the housing 12 of the installation 10. In this embodiment, the support 154 which is used to tilt the frame 110 within the housing 12, is employed as a pivot connection part 32. The plate 200 of the support 154 abuts and is parallel to the wall of the inner side 18 of the housing 12. An inner tube 202 is welded (to 204) to the plate 200 and extends through an opening in the housing 12 outwards , a plate 206 and an outer tube 208 and an additional plate 212 surround the outer side of the inner tube 202. The plates 206 and 212 are rigidly connected to the outer tube 208 by welds 210 and 214 as shown. The bolt and nut combination 216/218 securely and rigidly mounted on the plate 206 to the housing 12 passing through the openings in the plate 206, the housing 12 and the plate 200. This arrangement provides a strong and rigid connection for the pivot 32. The flat silicone gaskets 219 are located between the plate 206 and the housing 12. The bolts 220 extend through the apertures in the vertical arm of the fork 30. A small separator 224 separates a scrubber 226 away from the surface outer of the fork 30. The nut 228 tapers the washer 226 against the spacer 224. As seen in Figure 18, the plate 212 is fixed between the washers 226 and the arm 30 of the fork. When the nuts 228 loosen, this may allow the rotation of the plate 212 relative to the fork 30. The tube 202 may rotate with the housing 12 and the plate 212 in an opening 230 in the side of the arm 30 of the fork. The nuts 228 may be tapered such that the washers 226 hold the plate 212 to fix the pivoted orientation of the housing 12 to a desired orientation. C. Operation Figure 20 shows diagrammatically and at scale, a race track 200. As with United States Patents 5,337,221 and 5,343,374, this may be a track of one mile in length and substantially wide. To assist in understanding how the facilities 10 may be used in operation, they are shown separated from each other on the ground within the field of the runway 200. As discussed in U.S. Patents 5,337,221 and 5,343,374, the advantages of such arrangements include the ability to eliminate high poles within the field which blocks spectator views within the track field, blocks viewers outside the track from track portions on the far side of the track of them, and which creates "fence fencing" problems with cars that travel at high speed not only for spectators but also for television coverage. Additionally, by placing the installations 10 on the ground, the light sources that are near where the light is needed, normally in the track, and the high control of the controllability of the light installations, allow the placement of the light in the track and abrupt cut in such a way that the light is not divided in the eyes of the spectators, even in locations near the outer edge of the track. It is understood, however, that the installations 10 can also be positioned at the poles, including very high poles. These can also be placed in elevated structures such as pressure boxes, bundles, superstructures, etc. In many cases, the use of facilities 10 may allow a reduction in the number of conventional type installations required. In this way, low energy, low cost, and low maintenance is usually achieved. Figures 21-23 depict the type of beam pattern that can be generated from the facilities 10. A highly controlled pattern with sharp cuts is highly advantageous for the reasons previously described with respect to the racetracks. Additionally, the preferred embodiment, with the light source assembly 58, is blocked from direct view of the light source 80 to eliminate glare in the eyes of viewers and to eliminate glare for drivers. The installations 10 are positioned in spaced apart positions and are fitted into the trunnions assemblies to project the bundles for maximum utilization in the track 200. It is understood that the components such as locknuts and fixing screws, or other methods may be employees to allow the adjustment of installations 10 and then close them in place. In practice, each segment 100 or 100A is individually adjusted to ensure the sharp cutting line as for the spectators on the outside of the track. It is understood that in the arrangement shown by the installation 10, the lower part of the arc tube 82 always defines the upper part of the beam projected by the installation 10. In this way, by trial and error by individual adjustment of each segment for each installation 10, the cutting line for each segment can be made to be the top of any boundary wall around the track, for example, to ensure sharp cutting. Usually, it is not more than 5 ° or adjustment for each segment, but this may vary and include large adjustment angles. The adjustability of each segment is also allowed for the manufacturing conduction of the segments. In other words, for a given lighting application, the segments can be preconduced off-site to produce a beam of certain characteristics so that they can be simply directed to the site and aligned according to the predetermined design. This can eliminate on-site manipulation of the mirror segments. Another aspect of the invention is the ability to adjust the secondary reflector within the installation. In other words, this can be rotated in relation to the installation housing and currently inclined. This must be in addition to the rotation and inclination of the installation housing. An example of when this may be necessary may be on the indicated race track. If the installation as an integer is rotated to project the majority of the beam towards the track, avoiding the flash in the eyes of the drivers when they pass, the precise upper cut of the installation can not be precisely equated with the limit wall on the other side of the track ^ When arranging the second mirror inside the installation to be inclined with In relation to the installation and in relation to the ground, the cut along the boundary wall can be brought back to the same with the upper part of the boundary wall. An increase in efficiency over the modes of U.S. Patents 5,337,221 and 5,343,374 is a result of numerous factors. Efficiency, as used previously, is mainly related to how the available light is used properly. For example, by fixing segments 100 or 100A along the parabola, and designing their size and shape with reference to the size and shape of the light source, the light from the light source can be better fixed to the target. In other words, if the light of the installation is fixed on the lens, it will not discard light outside the lens and therefore is more efficient. It is noted that the use of curved mirror segments 100A also helps this efficiency due to the ability to provide a vertical beam very close to each segment. In the example of a race track, the need for a very precise cut in the upper part of the outer wall, to prevent the light from going to the spectators and to fix all the light along the length and width of the track that runs laterally on the front of the lights, which allows the use of a precise 10 ° beam. The lighting according to the preferred embodiment can be carried out in order to be three times more effective than the modality shown in U.S. Patents 5,337,221 and 5,343,374. The second example of why the efficiency is increased is the use of a primary reflector 94. The reflector 94 essentially collects more light. Without this secondary reflector 70 it could collect approximately 180 ° of arc light. With the reflector 94 in the order of 120 ° more light from the light source is collected. Some of the light may otherwise jump to the sides of the installation or to the outside of the target area, it may be too wide to use for the target area. Another example of an increase in efficiency is the use of side mirror 72 and 74 (see Figure 2). These can now be called as tertiary reflectors because they collect light not directly from the light source, but light that is reflected from outside the secondary reflector and which might otherwise be usable or absorbed by the sides of the inside of the reflector. installation, instead of heading back to the goal. A further example of the ability to increase efficiency is to use a non-reflective coating on both surfaces of lens 24 on the front of the installation. This reduces the reflective loss that occurs when light hits the primary and secondary surfaces of the glass. Therefore, the overall design of the present invention results in a substantial increase in efficiency over the installations described in U.S. Patents 5,337,221 and 5,343,374, and still additional efficiency over standard wiring installations. Figures 2 and 13 illustrate additional efficiency that can be made possible using the side mirrors 72 and 74 (usually both on the inside sides of the installation 10). Figure 13 shows that the mirrors 72 and 74 can be independently adjusted (see roll 75 which extends between the top and bottom of the supports 122 on each side of the frame 110) to take light and bring it back to the target. It is understood that the segments 72 and 74 can be employed to decrease the beam width of the installation 10 if desired. It is understood that the efficiency of these facilities is achieved by fixing the beam to the shape of the target. There is no additional light created for any greater degree. For example, compared to the installations in U.S. Patents 5,337,221 and 5,343,374, certain light situations of the light source of the first reflector falls outside the secondary reflector and therefore is lost because it does not transmit back to the objective. The "efficiency" discussed with respect to these facilities in certain situations will allow sequential spacing between facilities. For example, compared to the lighting system in U.S. Patents 5,337,221 and 5,343,374, facilities 10 can be separated at very far distances along a racetrack. One reason to want to separate the installation is to avoid having too much concentration of light on the track. The separation between the installations is mainly handled by how much light is produced for a certain wattage of lamps. To understand this concept, installations 10 can be separated together and small light sources of small wattage can be employed. It is understood that sometimes it is desirable to block some of the light to eliminate the glare. For example, the light source assembly 58 may have its flat back painted. The assembly 58 not only blocks the light, directly from the arc tube 82 outside the installation, but paints this at the flat back and can absorb light which may otherwise cause dazzle or other problems.

D. Options, Characteristics and Alternatives The preferred embodiment included is given for the form of an example only and not by way of limitations to the invention, which is only described by the claims. Obvious variations by those skilled in the art will be included within the invention defined by the claims. It will be appreciated that the present invention can take many forms and modalities. Some alternatives have been mentioned previously. The following are additional examples. It is possible to use reflectors of first or second surface or mirrors with respect to the reflector 94. A first surface mirror can be used in many cases because it helps the best cut of the light. Small distances at or near the bow of the arc tube can translate to large differences outside the track. The lens 24 on the front of the installation 10 can be made of glass. One option is to employ an anti-reflection coating on both surfaces of the front glass panels 24 to reduce the reflection of each surface of the glass lens and reduce the glare caused by such reflection. The use of segments 100 or 100A may in some situations, if used alone, cause slot problems. For example, in U.S. Patents 5,337,221 and 5,343,374, segmented type mirrors, each individually indicated, may have areas of decreased intensity followed by increased intensity, etc. The installation of the installation 10 of the present invention solves this problem by using the reflector 94 near the arc tube 82. This redirects the return of the light through the arc current and cooperates with the light directly exiting the arc tube and traveling to the reflector 70 for uniformly filling between the segments 100 and 100A. It is also understood that since segments 100 and 100A individual are employees, they can be contacted or they can be adjusted to adapt the beam. As the following is an example. By tilting the mirror segments around their horizontal axis the beam can be vertically narrowed. But there is a limit, however, to how far it can be narrowed. If the mirror segments (both the flat segments 100 and those shown in Figure 14A or curved segments 100A as shown in Figure 14B) are inclined to widen the beam as far as possible, this may create a non-uniform beam pattern in the target area with spaces (areas of more light intensity and areas of less light intensity in an alternating mode). In the case of the segments 100A of curved mirrors of Figure 14B, it is understood that the parabola of the line 106C curves most substantially close to the vertex of the parabola. Therefore, the segments 100A near the vertex have a curvature larger than those of the outer ends of the mirror 70 to arrange the inner segments 100A to more closely follow the curvature of the line 106. It has been found that the beam width it can be expanded simply by contacting the inner segments 100A of greater curvature with the outer segments 100A of less curvature. In this way, the structure described above with respect to the assembly of the segments 100A, allows the relatively easy and contacted removal of the segments to carry out this function. It is also understood that each of the mirror segments can be pre-directed. This means that it is possible to cover the reflection of one segment in the reflection of another to double the intensity outside the track for the beam area. It is also understood that the use of a trunnion or a similar mounting system allows the precise driving of the beam for different parts of the track and the adjustment of the beam. The individual adjustability of the mirror segments allows equalizing the cut points for each reflected image, as explained previously. The precise way in which the segments 100 or 100A are mounted to the reflector frame can also vary. In the present modality, a special mounting system is used to help in the direction of the individual segments. It is also understood that the compensating element for the arc tubes can be placed inside the housing 12 or outside the box to eliminate thermal problems. It is understood that the preferred embodiment uses mirror segments of rectangular shape in the secondary reflector, and in an elongated or linear light source that is elongated in the direction of elongation of the mirror segments. This arrangement fixes the light to the target area in the context of a race track because the race track and the boundary wall which needs to be illuminated this horizontally elongated but requires a narrow vertical beam spread to place light on the horizontal strip relatively narrow and the boundary wall defined by the track without placing light above the limit wall to the spectators, or placing much light on the side within the field of the track. The preferred embodiment could therefore be applicable to such things as square rectangular target areas such as the basketball court, hockey game areas, football fields, rectangular stages, and the like. To assist in understanding how the precise cut at the top of the beam can be achieved, reference is made to Figure 20. This view is diagrammatic, not to scale, and for illustration purposes only. This represents a light source 82 and a primary reflector 94 and several representative mirror segments 100 for a secondary reflector 70. A racing track 200 with boundary wall 223 and a racing car 221 are shown. The point L generally represents the lower part of the arc tube 94 and the point represents the upper part. The letters A, C, E, G, I, K, M, and O represent the upper edges of each segment 100, while B, F, H, J, L, N and P represent the lower edges. The basic rule of the angle of incidence is equal to the angle of the reflection means that the lowest point in the arc tube 82 which projects light to the upper edge of any segment 100, which will define the upper vertical portion of the reflected beam of the segment of the particular mirror 100. Therefore, the present invention allows the segments 100 to be positioned relative to the light source 82 in such a way that they can be precisely adjusted so that the angles of reflection can be matched where the upper edges of the segments 100 , so that all basically converge on the upper part of the boundary wall 223. Therefore, none of the light of any of the segments 100 will go above the top of the wall, producing a very sharp cut.

The remnant of the light will cross the track (see reference numbers 225 generally which generally corresponds to the beam in this view in elevation). It will be understood that because the segments approach the light source they create wide vertical beams more than the segments remote from them. The closest segments are designed to have scattering of light beams that cover most of the track. As illustrated in Figure 20, segments farther from the light source towards the ends of the reflector 70 have narrower beam scattering. Therefore, because each segment 100 is adjusted to have the upper part of its beam converged to the top of the wall. There is a cumulative cover of bundle portions of the segments towards the remote parts of the cover 200. This helps to have an even illumination through the track 200 because more intensity is directed at greater distance from the installation while less intensity is Direct a short distance. The basic laws of lighting in this way are used to create uniformity, and this is possible for the individual segments. Figure 20 also illustrates that the use of the primary reflector 94 collects most of the light from the light source to then be controlled by the segments 100 to put more light on the track 200.

It will be appreciated that the present invention can take many forms and modalities. The true essence and spirit of this invention are defined in the appended claims, and it is not intended that the embodiment of the invention presented herein should limit the scope thereof.

Claims (49)

1. CLAIMS 1. A lighting installation for lighting a target area of a certain shape and substantial size with a substantial amount of light intensity characterized in that it comprises: an installation housing having substantially transparent front lenses; a high intensity light source placed in the housing, the light source having a length; a primary reflector generally positioned along the length of the light source at or near the light source, in the same order of size as the light source, and which collects light from one side of the light source; a secondary reflector placed in the housing, substantially larger in size than the primary reflector, separated from the light source, and extending around the opposite side of the light source of the primary reflector, the secondary reflector including a frame, a plurality of reflector segments of similar size and shape, which are mounted at a location in each segment adjacent to each other along the frame to form a generally continuous secondary reflector surface, and fitted components, connected between the assemblies and the frame allowing the adjustable inclination of the segments; the primary reflector that directs its collected light to the secondary reflector; and the secondary reflector that produces a highly controlled composite light beam mof the light reflections of each of the segments, the reflections that are adjustably placed in relation to each other by tilting the segments, the beam emanating from the through the lens of the housing.
2. 2. The installation according to claim 1, characterized in that it also comprises secondary assemblies which mount the frame for the housing and adjustment components connected between the secondary assemblies and the frame allowing tilting of the frame in the housing.
3. The installation according to claim 1, characterized in that the light source is lengthened along its length and the segments of the secondary reflector are elongated and rectangular.
4. 4. The installation according to claim 2, characterized in that the lens has a non-reflective coating.
5. The installation according to claim 1, characterized in that the secondary reflector is generally flat but curved in one dimension.
6. 6. The installation according to claim 5, characterized in that the secondary reflector is carried out from highly specular individual segments.
7. The installation according to claim 6, characterized in that the segments are flat.
8. 8. The installation according to claim 6, characterized in that the segments are curved in the same dimension as the secondary reflector.
9. 9. The installation according to claim 5, characterized in that the curve is in the form of a parabola.
10. The installation according to claim 1, characterized in that the light source has a high intensity.
11. The installation according to claim 10, characterized in that the light source is an arc tube.
12. The installation according to claim 11, characterized in that the arc tube is elongated in length.
13. The installation according to claim 12, characterized in that the arc of the tube is located laterally in the housing. 1 .
14. The installation according to claim 12, characterized in that the arc tube is placed at or near the focal point of the secondary reflector.
15. 15. The installation according to claim 11, characterized in that the primary reflector is mounted near or near the light source.
16. 16. The installation according to claim 15, characterized in that the primary reflector is generally planar.
17. 17. The installation according to claim 15, characterized in that the primary reflector is curved.
18. 18. The installation according to claim 15, characterized in that the primary reflector is a first surface reflector.
19. 19. The installation according to claim 15, characterized in that the primary reflector is a second surface reflector.
20. 20. The installation according to claim 11, characterized in that the primary reflector has a coating on the arc tube.
21. 21. The installation according to claim 20, characterized in that the primary reflector is curved to the shape of the arc tube.
22. 22. The installation according to claim 1, characterized in that the primary reflector is highly specular.
23. 23. The installation according to claim 1, characterized in that the primary reflector reflects a substantial majority of visible light but infrared radiation passes.
24. 24. The installation according to claim 6, characterized in that it also comprises reflection panels placed on the inner side walls of the housing.
25. 25. The installation according to claim 24, characterized in that the reflection panels are adjustable with respect to the side walls.
26. 26. The installation according to claim 1, characterized in that in addition the secondary assemblies have releasable components to remove each segment of the frame.
27. 27. The installation according to claim 1, characterized in that it further comprises an assembly to which the light source is mounted, which includes a block between the primary receiver and the front of the housing.
28. 28. The installation according to claim 1, characterized in that it additionally comprises a base on which the housing is mounted, the base including a pivotable connection to the housing for adjustment of a housing about a first pivot axis and the pivot member for adjustment of the first pivotable connection about a second pivotable axis.
29. 29. A system for illuminating a substantial area characterized in that it comprises: a plurality of installations each supported by a base placed in positions separated from each other in relation to the area to be illuminated; each installation comprises: a housing with an opening cover by means of lenses; a high intensity light source in the housing; a first reflector placed near or in the light source; a second reflector placed in the housing separate from the light source; the first reflector that directs light from the light source to the secondary reflector; and the secondary reflector that directs the light from the primary reflector and from the light source outside the lens.
30. 30. The system according to claim 29, characterized in that each installation has at least two degrees of movement release related to the base.
31. 31. The system according to claim 29, characterized in that the base is placed on the ground.
32. 32. The installation according to claim 29, characterized in that the base is placed in a structure which rises in at least some installations above the ground.
33. 33. The system in accordance with the claim 29, characterized in that the housing comprises a closure that includes the lens on the front of the closure.
34. 34. The system according to claim 29, characterized in that the housing is less than four feet by four feet by four feet in dimension.
35. 35. The system according to claim 29, characterized in that the light source comprises an arc tube.
36. 36. The system according to claim 29, characterized in that the light source extends towards the opposite side walls of the housing generally in a horizontal plane and parallel to the front lens.
37. 37. The system according to claim 29, characterized in that the primary reflector is in the same order of size as the light source.
38. 38. The system according to claim 29, characterized in that the secondary reflector in the vertical cross section follows a parabolic shape and has a width extending towards opposite sides of the housing.
39. 39. The system according to claim 29, characterized in that the secondary reflector comprises individually adjustable segments along a parabolic curve.
40. 40. A method of illuminating a target area having a particular shape characterized in that it comprises: placing a light source at a distance from the target area; collect, very close to the light source, direct light from the light source that could otherwise travel in the general direction of the target area; collect another light from the light source that could otherwise travel in directions away from the light source; and directing the collected light to an arrangement generally in the particular form of the target area.
41. 41. The method according to the claim 40, characterized in that it additionally comprises using a plurality of reflector segments to direct the collected light, and adjust each segment relative to the light source in such a way that at least one side of the perimeter of the collected light, which is directed of the segments, it is directed to the same location in the target area to create a sharp, sharp cut of light at the location.
42. 42. The method of compliance with the claim 41, characterized in that the light source is elongated, the segments are elongated and rectangular, and the objective space is rectangular.
43. 43. The method according to claim 42, characterized in that the lower part of the light source and the upper edge of each segment are parallel.
44. 44. A method for illuminating a target area of substantial space over a substantial distance from a light source characterized in that it comprises: reflecting a portion of light generated from an arc tube at a position near the arc tube with a reflector in the order in size of arc tube; redirecting reflected light and other light from the arc tube in a defined beam, controlled to a portion of the target area; and directing a plurality of controlled defined beams, each produced according to the previous steps, to positions to illuminate all the desired portions of the target area.
45. 45. The method according to claim 44, characterized in that the target area is a racing track.
46. 46. The method of compliance with the claim 44, characterized in that the segments are positioned along a parabola having a focal line that emanates from the target area, each of the segments having a shape which is similar to the shape of the light source and the segments projecting A beam of light that has a shape that is similar to the shape of the area that will be illuminated.
47. 47. The method according to claim 46, characterized in that each of the segments are rectangular, the light source has a lower edge that is parallel with the upper edges of the segments and a sharp, defined cut is created by angular each segment in such a way that the upper part of any beam created by each segment converges to a similar location in the target space, whose location defines a limit of the target space.
48. 48. The method according to claim 46, characterized in that each of the segments is curved in a vertical plane to simulate the curve of the parabola in the location of the segment along the parabola, in such a way that the segments more next to the vertex of the parabola are curved more than the segments furthest from the vertex.
49. 49. The method according to claim 48, characterized in that it additionally comprises contacting at least 2 segments of different distances in relation to the vertex to change a composite beam width of the segments.