JP2005123036A - Solar light condensing unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a solar light condensing unit without using any additional sun light tracking means or the like usable in outdoor open spaces, on building roofs, walls, under handrails, and installations on seas and ships which are shaken continuously under influence of waves. <P>SOLUTION: Incident light through a glass 20 is divided by means of a plurality of unit light collecting tubes 1a of almost the same shape arranged in parallel in a light collecting tube 1, and the light reflected is collected at a point P1 of the light collecting tube 1 and its circumferences by a curved reflecting panel R1. Next, the light enters a first light condensing part, is reflected and collected into a narrow range, succeedingly collected into a further narrow range in a second light condensing part, and sent to light guide materials. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a sunlight condensing device installed on a veranda or the like of a house and an illumination device using the condensing device.

  As shown in FIG. 18, the conventional solar light collecting device 31 has always captured the sun as a light source directly in front of the sun tracking device 32, and has collected and used the light from one direction (for example, the following precedents). Reference 1). Therefore, although efficient daylighting is possible, the equipment cost is correspondingly increased, and maintenance inspection is required once or twice a year, and labor costs are also required. In addition, many conventional products are of the type that is installed on the roof of a building, and when used in, for example, an apartment house where many households move into a single building, they must be installed on the roof for that household. In terms of effectively using the limited installation space, the efficiency is poor, and there is a problem in aesthetics.

Also, in the lighting device, when performing various effects by light, it is common to diffusely illuminate from a light source having various angles. For example, in order to use an optical instrument such as a prism or a lens, a light source is used. There was a surface that was difficult to process.
JP 9-270204 A

Accordingly, an object of the present invention is to allow a sunlight condensing device to condense incident light of many angles incident on a condensing tube without using a solar light tracking device. Moreover, since the structure is simple, the manufacturing cost can be significantly reduced.
In the present invention, all the daylighting components are fixedly installed in the direction in which the sun is coming in, and the device itself does not move. However, depending on the installation situation, for example in the morning and evening hours, when the light receives direct light from the oblique direction with respect to the lighting surface, the lighting area will be less than in the front, which is about the same size as the conventional technology. The lighting efficiency per one of the light collectors is somewhat inferior.

  However, it has a shape that protrudes one side of the outer peripheral surface of the collecting tube so that it can easily receive light from an oblique direction, and daylighting components are put together in a grid pattern, for example, and placed in a plane to integrate them as a whole. If it arrange | positions so that an arc may be drawn toward incident light, a certain surface will always face the sun and the lighting efficiency will be stabilized. Further, since it is not necessary to put it in an acrylic dome for preventing dust adhesion and there is no restriction on the additional width, the daylighting area can be increased freely and easily at a much lower cost and more efficiently, and its drawbacks can be sufficiently covered. Moreover, it can be easily installed on the outer wall portion under the handrail, and if it is integrated with the handrail, there is no need to prepare a separate installation location.

Therefore, the roof can be used as a space for rooftop greening, for example, and it can also be applied to high-rise condominiums with a large number of tenants that have been difficult until now if attached to the handrails of each house in the case of apartments. it can. Not only does it have an energy-saving effect, it does not feel inorganic, but it also has the original function of passing light and the beauty of the material, such as a glass block. It can also be used as a part of
In addition, regarding the problem of the lighting device, all the collected light is aligned in substantially the same direction, for example, using an optical instrument such as a prism or a lens, it is possible to easily process light that cannot be scattered light, The spotlight's ability to irradiate with the width of the shade of the lighting device is also excellent.

In order to solve the above problems, the present invention has taken the following measures. That is,
The solar light collecting device is fixed to the outer surface of a building, collects most of the directly irradiated light of the irradiated sunlight, and transmits the collected light to the indoor side. In addition, the solar concentrator collects a substantial portion of the direct irradiating light of sunlight collected in places that are constantly shaking, such as on the water, and places where the collected light is required, for example, underwater or indoors. It is characterized by transmitting light up to.

  In this case, by arranging several vertical and horizontal reflective plates that are mirror bodies in the vicinity of the entrance of the light collection tube 1, the light collected is finely divided, and the divided light is divided into a narrow range between the P1 point and its surroundings. After the light is concentrated and reflected, the light is condensed to a narrower range and sent to the light guide 3 to solve the problem. In addition, the problem of the lighting device is solved by combining the shade portion that is also a reflector and a convex lens.

  Moreover, it arrange | positions so that the surface which directly receives the sunlight arrange | positioned at each part of a building may face a sun directly.

  In addition, the solar concentrator is installed in places that are constantly shaking, such as for indoor lighting, marine facilities and ships, for underwater and facility lighting, and on the rooftop of buildings as well as outdoors. It is installed in the place where it hits the sun, such as a square, a facility, and a pillar, and the condensed light is used for illumination.

  In addition, the lighting device uses the light emitted from the light source in combination with the shade portion that is also a reflecting mirror and a convex lens, and aligns all the transmitted light in the same direction. It is characterized in that light can be irradiated forward with the same width as the diameter.

  In addition, solar concentrators can be used for building roofs, building roofs, exterior walls, handrail exteriors, squids, and other water facilities, ships, and outdoor plazas, facilities, and pillars. The present invention relates to a solar light collecting device installed in a place where light can be received and a lighting device that can irradiate the light with the width of the shade of the lighting device without diffusing light.

(Condenser)
According to the present invention, sunlight or the like can be collected without using any additional operation means such as sunlight tracking means. For example, it is possible to effectively illuminate even on ships and squid that are constantly shaking under the influence of waves. Further, the present invention requires almost no maintenance after installation, can be manufactured at a much lower cost, and can be easily made into a panel with a large area. When used in a building, the wiring is not exposed to the outside, so the appearance is not impaired, and the structure is simple and easy to make thin, so it can be installed according to its shape and attached to the bottom of the handrail or on the wall Therefore, the installation space can be used effectively. For example, if it is irradiated indoors, it is not only effective for energy saving, but natural light that is clearly different in quality from artificial lighting gives comfort to human hearts. The indoor foliage plants and pets have the same effect as growing under natural light, and can be used for agriculture, for example, flower gardening and animal husbandry, and can also be used for health equipment.

(lighting equipment)
Next, the characteristics of the luminaire are that all the light emitted from the luminaire is directed in the same direction, so it is not only used as a spotlight, but also a prism is attached to the luminaire outlet, for example, to produce a rainbow, It can be used for various applications such as separating infrared and infrared rays, and attaching various lenses to facilitate various processing of light that is not possible with scattered light.

  This embodiment of the present invention will be described with reference to the drawings.

  1 is an external view of the first embodiment, FIG. 2 is a horizontal sectional view of the first embodiment, FIG. 3 is a vertical sectional view of the first embodiment, and FIG. 4 is an overall system diagram of the first embodiment. 5 (1) to (3) are longitudinal sectional views of the main part of the first embodiment, FIG. 6 is an external view of the main part of the first embodiment, FIGS. 7 to 14 are explanatory diagrams of the first embodiment, FIG. 16 is an explanatory diagram of the illumination device of the first embodiment. FIG. 17 shows a usage example of the prior art, and FIG. 18 shows a configuration example of the longitudinal reflecting wing 10 and the lateral reflecting wing 11.

(Overall flow)
First, FIG. 4 is an example of an overall system diagram. The overall process will be described with reference to this figure. The light collected by several light collecting tubes 1 is combined into one by an optical integrator 2, and some lights combined in the same way are further integrated into a known optical integrator 2 to be stronger. It shows that the light is sent to the light guide 3 and irradiated by the illuminator 4.

(Light attenuation)
Next, a description will be given of light attenuation in which the amount of light gradually decreases as light repeatedly reflects. There is currently no material that reflects 100% of the light. Although the reflectivity varies depending on the reflective material, even the highest reflectivity is about 96%. In this case, the remaining 4% is absorbed by the reflective material. For example, it is assumed that there are a plurality of materials having a reflectance of 90% chemically vapor-deposited on a metal plate. When light is reflected five times between these materials, it becomes 0.9 × 0.9 × 0.9 × 0.9 × 0.9 = 0.59, and the amount of light falls to about 60% of the original light. Therefore, it goes without saying that reducing the number of reflections as much as possible leads to efficient lighting.

(Condensing tube 1)
In the present embodiment, FIG. 1 shows the appearance of the light collecting device. 2 and 3 show that most of light incident on the light collecting tube 1a through the glass 20 by arranging a plurality of light collecting tubes 1a having substantially the same shape in the light collecting tube 1 in parallel. Is effectively sent toward the outlet of the condenser tube 1. Most of sunlight, which is incident light, enters the lighting device from an oblique direction in both the vertical and horizontal directions. Since the description is complicated here, the description will be made separately for the vertical direction and the horizontal direction.

(Vertical reflection)
First, the reflection in the vertical direction in the light collection tube 1 will be described. In Japan, which is located north of the North Return Line, the altitude of the sun does not exceed 90 degrees in the vertical direction even at the summer solstice when it reaches the highest position. As shown in FIG. 8, all the lateral reflection wings 11 that are mirror bodies formed in the light collection tube 1, among the incident light in several time zones represented by arrows to the unit light collection tube 1 a, With reference to light passing through an intersection (hereinafter referred to as reference light intersection P0) (hereinafter referred to as reference light; in the figure, K35, K45, and K60), it is necessary to align all of the reflected light in the same direction. .

  That is, the reference light reflections of all the lateral reflection wings are aligned in the same direction and reflected by the longitudinal curved surface reflection portion L2 which is the next reflection surface, so that all the reflected light of the reference light is optically focused at the focal position P1. Can be collected. In the figure, incident light at arbitrary angles of 60 degrees, 45 degrees, and 35 degrees is set as reference light (referred to as K60, K45, and K35, respectively), and reflected light of all reference lights is in the same direction (in the case of the figure, horizontal direction). The lateral reflection wings are curved so as to go to).

  In the present invention, as shown in FIG. 8, when an auxiliary means for securing the lighting area is not taken, the lighting in the range of about 45 degrees in the vertical angle is possible. In the case of FIG. 8, the lower limit angle P30 of collecting tube light collection is set to an elevation angle of +30 degrees, so that light with an angle of about 30 degrees to 75 degrees can be collected. In this case, light having an angle in the range of 0 degrees to 30 degrees enters the light collection tube 1 while reflecting the outer surface of the lateral reflection wing 11, but after repeating irregular reflection in the same, the light disappears and eventually cannot be taken. .

  However, it is possible to set a convenient incident angle range according to the latitude of the area where the person lives by changing the setting of the lower limit angle P30 of light collecting tube light collection and changing the arrangement angle of the lateral reflection wings 11. Next, the vertical curved surface reflection portion L2 in the back of the light collection tube 1 is curved so as to collect the reflected light of the reference light coming from the same direction to the point P1 at the exit of the light collection tube 1. However, as shown in FIG. 8, the light incident on the unit condensing tube 1a has a range indicated by the unit condensing tube light collection range L10a. For example, in the case of the reference light 45 shown in FIG. There is N45 which is light at an arbitrary position (hereinafter referred to as free light) that shines in the same direction, and N45 is reflected at a position where the gradient is steeper than the position where the reference light 45 is reflected.

(Free light reflection)
That is, NH0 that is the reflection direction of the free light is reflected to the vertical curved surface reflection portion L2 at an angle slightly lower than KH1 that is the reflection direction of the reference light K45, and the reflected light of the reference light passes through the focal point P1. The free light reflected light NH0 is reflected in a direction slightly deviated from the focal point P1 by the angle and the position reflected by the longitudinal curved reflector L2, and enters the reflected light first aggregating unit 21, respectively. Next, of the reflected light reflected from the inner wall surface of the first light aggregating portion 21, the reflected light of the reference light proceeds to the first aggregating portion light focal position P2 at the exit, and the reflected light of the free light travels to its periphery. It is sent to the light guide 3 while being collected in a narrower range. If, for example, an optical fiber having a small diameter is used as the light guide material, it is necessary to connect a second reflected light aggregation unit 22 having the same shape and performance as the reflected light first aggregation unit 21 at this stage. The setting position of the focal position P1 can be freely set by changing the curvature of the longitudinal curved curved reflector L2.

(Free light reflection angle difference)
Next, after the free light is reflected from the lateral reflection wings 11, it is verified in FIG. 12 how much the difference in angle is from the reflected light of the reference light. In FIG. 12A, the incident light of the reference lights K35 to K60 is reflected by the lateral reflection wing 11, and the reflection direction KH1 is all set in the horizontal direction. This indicates that it is assumed that the virtual flat reflectors KM1 to KM1-3 are placed at respective positions at the positions of the reflection points on the lateral reflection wings 11 at the same angles of incidence and reflection.

  In this case, the incident angle, the reflection angle, and the angles of the virtual planar reflectors KM1 to KM3 with respect to the horizontal direction are the same because KH1 is set to be horizontal. FIG. 12 (2) shows a case where the free light N35 having the same direction as the reference light K35, which is the smallest angle among the reference lights, is set for the reference light 45 on the virtual flat reflector KM2 described in the above (1). The reflected light NH2 is -22.5 degrees. 12 (3), similarly, when the free light N35 is reflected on the virtual flat reflector KM1 set for the reference light 60 described in FIG. 12 (1), the reflected light NH1 is It shows −25 degrees, and it is reflected once again at the point of HP0, and is closer to the horizontal direction.

  As a result, the angle difference between K60, which is the largest angle of the reference light, and K35, which is the smallest angle, is 25 degrees, whereas the angle difference of the reflected light does not exceed the difference of 25 degrees. . Rather, when the angle difference is widened, when the reflection direction of the first free reflected light NH1 on the lateral reflection wing comes below the lateral reflection wing tip 11a shown in FIG. 3, as shown in FIG. 12 (3). Further, the number of reflections on the lateral reflection wing 11 increases, and the angle difference from the reference light reflection direction KH1 further decreases.

(Left-right reflection)
Next, the reflection in the left-right direction in the condensing tube 1 will be described. The daylighting range is 180 degrees from sunrise in the east to sunset in the west. As shown in FIG. 7, all longitudinal reflection wings 10 that are mirror bodies formed in the light collection tube 1 pass through several reference time points P0 set at the entrance of the unit light collection tube 1a. The reflected light is curved so as to be directed toward the focal point P1. At this time, it is efficient to set the reflection position of the vertical curved curved reflector L2 to a position toward the focal point P1 by a single reflection after the incident light is reflected from the longitudinal reflecting wing 10.

  The overall shape can freely set the focal position of the reflected light of the longitudinal reflecting wing 10 and therefore does not necessarily have to be symmetrical with respect to the incident light. Further, in the figure, L30 is a bend with the same reflection performance as the longitudinally reflecting wing 10. Also here, the light incident on the range of the unit condenser tube 1a includes free light which is light in the same direction other than the reference light, and the reflected light is then reflected by the longitudinal phase reflector L2 and then the focal position. Although it goes to the periphery of P1, the principle of these reflections is the same as that in the case of the vertical direction, and the description thereof is omitted.

(Area where vertical reflection feathers are not installed)
Next, the effect of providing a region where no longitudinally reflecting wings are set will be described with reference to FIG. FIG. 13 shows an angle at which the reflected light is not assumed by any light incident on the outer surface of the curved reflecting mirror, regardless of the sunlight incident angle SL1 unless an area where the longitudinal reflecting wings are not set is provided. This indicates that there is always an indeterminate light incident range L21, which is a range in which light that enters the condensing tube 1 and repeatedly repeats indefinite reflection (hereinafter referred to as indefinite light) is generated. Specifically, a triangular area (shaded area) surrounded by points P11, P12, and P13 in FIG. 2 is an area where the vertical reflection wing 10 of this apparatus is not installed. When this area is provided as shown in FIG. 7, the indeterminate light incidence range L21 does not occur unless the sunlight incident angle SL1 exceeds the longitudinal reflection wing non-arrangement area angle P20. A small percentage is generated. As described above, the same area has an effect of not generating indefinite light until it exceeds the vertical reflection wing non-arrangement area angle P20.

(Incident light at front or near front angle)
Next, reflection of incident light at an angle close to the front or near the front will be described with reference to FIGS. FIG. 9 shows that when the incident light K90 enters the light collection tube 1 from the front without hitting the longitudinal reflection wing 10, the light is directed toward the focal position P1 in the horizontal reflection portion L1 at the back of the light collection tube 1. It is shown that it is curved like this. The figure also shows that the indeterminate incident range L21 is generated as a whole and finely. However, this situation is only a short time of the day and does not have a significant effect as a whole. Next, the situation when the incident angle is close to the front is shown in FIG. The light passing through the daylighting possible range L20 is collected in the vicinity of the point P1, but an indefinite incident range L21 is also generated in a certain range here. However, as shown in FIGS. 6 (A) and 6 (C), if several light collecting tubes 1 are arranged so as to draw an arc in accordance with the movement of the sun, some surface always faces the sun directly in front. It stays and can be evenly lit throughout the day.

(Unit condensing tube part vertical reflection range L2a)
As shown in FIG. 11, the light incident on the condensing tube 1 is divided into more incident light using vertical and horizontal reflecting wings, that is, the unit condensing tube light collection possible range L20a shown in FIG. , N10a shown in FIG. 8 is narrowed. As a result, the vertical reflection range L2a on which the reflected light hits is narrowed, and light can be collected around the focal point P1. In FIG. 11, the side surface reflection position 41 indicates a position where the light is reflected by the horizontal reflection wing 11 and then reflected by the vertical reflection wing when light from an oblique direction is radiated in both the vertical and horizontal directions.

(First aggregation portion 21, second aggregation portion 22)
Next, the reflected light first aggregation portion 21 and the reflected light second aggregation portion 22 will be described with reference to FIGS. The light that has passed through the reflected light focus position P1 and its surroundings enters the first aggregating portion 21 of the reflected light and is reflected on the inner wall surface. The shape is cylindrical and the center is swollen, and the outlet is squeezed smaller. The inner wall surface is curved so that the reflected reference light is directed to the first aggregating portion focal point P2 at the exit. Accordingly, the free light passes through a position slightly deviated from the first aggregate portion focal position P2. If a material with a small diameter, such as an optical fiber, is used for the light guide material, the second aggregating part 22 having the same shape and the same performance as the first aggregating part 21 of reflected light has a first aggregating part focal point P2 point. Then, the light can be condensed to a narrower range and sent to the light guide material 3 by being connected.

  As described above, the present invention does not attempt to allow all the light incident on the condenser tube 1 to pass through the points P1 and P2, but collects the light around the points as close as possible based on the points P1 and P2. It has a structure that aggregates light. Further, the glass 20 is not an indispensable constituent element, and if the setting position of the reference light intersection point P0 is the unit light collection tube entrance, the position is not specified in both the vertical direction and the horizontal direction.

  Overall, as shown in FIG. 2, the light collection tube 1 is formed of a mirror partition plate in which the vertical reflection wings 10 and the horizontal reflection wings 11 intersect at right angles, and a glass 20 on the front surface. The light guide member 3 is connected to the rear, and the condensed light is sent to a suitable place through the light guide member 3. Note that the vertical reflection wing 10 and the horizontal reflection wing 11 at the entrance of the light collection tube 1 are not limited to the four sides of the top, bottom, left, and right. For example, it may be a hexagonal honeycomb shape. Further, the unit condensing tube 1a formed by the vertical reflection wings 10 and the horizontal reflection wings 11 is not limited to the vertical and horizontal lattice shapes, and examples of other forms are shown in FIGS. 19 (1) to (4).

(Condensing tube 1 that is strong against incident light from an oblique direction)
Since the present invention does not have a tracking device that automatically faces the sun, there is a drawback that incident light from an oblique direction has a smaller lighting area than that from the front. The improved form is shown in FIGS. 14 (1) and 14 (2). (1) is one in which one end of the outer side surface of the light collection tube 1 is extended by the length L3 so that efficient light can be obtained with respect to incident light from the lateral direction such as morning and evening. As a result, the daylighting width L40 of the normal device protrudes somewhat to the daylighting width L41 of the improved type device. Next, FIG. 14 (2) is a device in which the daylighting area is increased when the sun is at a high position such as at noon. The outer bottom surface of the condensing tube 1 is projected to the front by the length L3, so that the lighting width L40 of the normal device is increased to the lighting width L41 of the improved type device. However, in both of FIGS. 14 (1) and 14 (2), there is a drawback that the light collection area from the front direction is reduced along with this improvement. Therefore, combined use according to the purpose of the normal type is effective.

(Lighting fixture 1)
Next, the lighting fixture shown in FIGS. 15 and 16 will be described. The collected light is guided to a place where it is required by the light guide material 3, and a lighting fixture is attached to the end of the light to irradiate the light. FIG. 15 (1) is convenient when a partial illumination is applied like a spotlight. The feature of this apparatus is that the light transmitted by the light guide member 3 can be irradiated in the same direction through the luminaire shown in FIG.

  First, the mechanism will be described with reference to FIG. The light emitted from the front surface of the light guide member 3 and the same surface as the lighting device partition plate 51 is emitted at a total angle of 180 degrees from the peripheral orthogonal direction to the forward direction. Specifically, it is effective to cut the tip of the light guide material 3 horizontally in the orthogonal direction. The side bent portion L30 of the lighting device shade portion 50 whose inner surface is a mirror body is curved so that all the light emitted from the tip of the light guide 3 and reflected is directed in the horizontal direction. The convex lens LN0 is attached at a position where the focal point LN2 is the tip of the light guide material 3. Accordingly, all the light emitted from the tip of the light guide 3 and passing through the convex lens LN0 is refracted so as to be in the horizontal direction. The transparent glass G3 also serves to transmit the light reflected from the side curved portion L30 as it is and to support the convex lens. However, the transparent glass G3 is not necessarily glass but may be supported by a thin metal plate, for example.

  The dimension of the projection 53 of the light guide material in the illuminating device is such that the light emitted from the tip of the light guide material 3 is reflected at the orthogonal light reflection position 54, which is the point where the light is reflected in the direction orthogonal to the surroundings. The position coincides with the portion 55. The reflection range of the side bent portion L30 is required from the orthogonal light reflection position 54 to the front lens reflection position 56 on the inner surface of the lighting device shade that connects the convex lens focal position LN2 and the convex lens end 55 and is on the extension line. is there. As a result, the light emitted from the tip of the light guide material 3 becomes the illumination device reflected light LN3 and the convex lens refracted light LN1, both become parallel light directed in the same direction, and the width of the illumination device shade portion 52 is maintained, Irradiated forward.

  Next, an example in the case of juxtaposition under a handrail such as a veranda will be described with reference to FIGS. 5 (1), (2), and (3). A dedicated installation location is not required because the area below the handrail 30 is used. FIG. 5 (1) is suitable for a building at a high latitude where the angle of incident light is relatively low, while FIG. 5 (2) is suitable for a building located at a low latitude where the angle of incident light is relatively high. Further, FIG. 5 (3) shows the example of FIG. 5 (1) in which three stages from the bottom are used together with the “collecting tube 1 strong against incident light from the oblique direction”. As a result, depending on the latitude where the building to be installed is located, more light can be taken even in a time zone where the altitude of the sun is high. In addition, as shown in the figure, the light guide 3 can be wired in the buried pipe installed at the time of placing the concrete in the concrete, so that the light guide 3 is not exposed on the surface, which may impair the appearance. Absent.

  Next, FIG. 6A shows an example of a measure for reducing the lighting area from an oblique direction, which is a drawback of being a fixed type that does not move by itself. By making the outer surface of the handrail 30 and the condensing tube 1 juxtaposed under it largely curved so as to face sunlight, some surface during the day can face the sun and the surface is stable without unevenness. Daylighting is possible. Needless to say, it may be combined with FIGS. 5 (2) and (3) of the second embodiment.

  As shown in FIG. 6B, it is shown that if an appropriate range is formed in a single plate shape to form a panel, the outer wall can be attached without a sense of incongruity in terms of architectural design. It is effective when you want to save the installation space or when you want to use it as a decorative material on the exterior design of the building. Moreover, since it can be attached to a wall surface over a wide area, it is also possible to provide sunlight, for example, to the neighborhood which becomes a shadow adjacent to the north side of a high-rise building.

  In the case of FIG. 6 (C), it shows the case where it is installed on the roof of the building, but it can also be installed on the ground or on the pillars of the plaza. Can be installed according to the slope of the roof. On the other hand, the tracking device is not useful on ships and squids that are constantly swaying under the influence of waves, and the present invention can always take light from any angle, so it can be installed in such a place. Specifically, if it is installed on the squid and the light guide 3 is irradiated on the bottom of the water using, for example, an optical fiber that is not affected by water pressure, water quality purification by growing algae and small fish dwelling by growing seaweed and plankton It can also be applied to the field of cultivated fishery. It can be applied not only to the sea and lakes, but also to the field of systematic agriculture such as vegetable factories. Moreover, it can be used not only as a lighting application field but also as an energy conversion device for heat, electricity, biochemical reaction and the like. Moreover, the condensing tube 1 of the present invention can be applied not only to buildings but also to various solar heat utilization devices by forming the entirety into a plate shape.

The external view of the Example 1. FIG. Explanatory drawing (horizontal direction sectional drawing) of Example 1 which concerns on this invention. Explanatory drawing (vertical direction sectional drawing) of the Example 1. FIG. 1 is an overall system diagram of the first embodiment. FIG. (1) The main part longitudinal cross-sectional view of Example 2 both in (2) and (3). The perspective view of Example (A)-(C) which concerns on this invention.

Explanatory drawing (horizontal direction reflection figure) of Example 2 which concerns on this invention. Explanatory drawing (vertical direction reflection figure) of the Example 2. FIG. Explanatory drawing of the Example 2 (horizontal direction reflection diagram of front direct light). Explanatory drawing of the Example 2 (the horizontal direction reflection figure of the light near a front). Explanatory drawing of the Example 2 (vertical direction reflection figure at the time of 45 degree light). (1) (2) (3) is explanatory drawing of the Example 2 (reflection angle of each part of horizontal reflection wing | blade). Explanatory drawing of the Example 2 (Explanatory drawing of a vertical wing | blade non-arrangement area | region). (1) Both (2) are explanatory drawings of the second embodiment (a form strong against incident light from an oblique direction).

The perspective view of an illuminating device. Explanatory drawing of an illuminating device. Explanatory drawing of a prior art. (1) to (4) are application examples of the daylighting part reflecting feather according to the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Condensing tube 1a ... Unit condensing tube 2 ... Light integrator 3 ... Light guide material 4 ... Illuminating tool 10 .. Vertical reflection wing 11 .... Lateral reflection wing 11a ... Lateral reflection wing tip 20 ··· Outer glass 21 · · Reflected light first aggregation portion 22 · · Reflected light second aggregation portion
30. Handrail 31. Conventional collector 32. Automatic solar tracking device

40 .. Indefinite light 41 .. Side reflection position 50 .. Illumination device shade 51 .. Illumination device partition plate 52 .. Illumination device shade diameter 53 .. Output of light guide material in illumination device 54 .. Orthogonal direction light Reflection position
55 ・ ・ Convex lens end 56 ・ ・ Front reflection position

G1 ・ ・ Lighting device transparent glass HP0 ・ ・ Reflection point 0 HP1 ・ ・ Reflection point 1 HP2 ・ ・ Reflection point 2
K90 ... Reference light 90 degrees K75 ... Reference light 75 degrees K60 ... Reference light 60 degrees K45 ... Reference light 45 degrees K35 ... Reference light 35 degrees KH1 ... Reference light reflection direction KM1-3 ... Virtual plane reflection Plates 1-3

L1 ··· Horizontal reflection portion L2 · · Vertical reflection portion L2a · · Vertical reflection portion in the unit condenser tube L3 · · Projection length L10 · · Condenser tube depth length
L10a ·· Unit condenser tube lighting range (vertical)
L11 .... Daylighting range (vertical)
L20 ・ ・ Daylighting range (horizontal)
L20a ··· Unit condenser tube lighting range (horizontal)
L21 ... Undefined light incidence range L30 ... Side bent part (lighting part)
L31 ·· Side bent portion (illuminator) L40 · · Daylighting width L41 of normal device · · Daylighting width of protruding type device LN0 · · Convex lens LN1 · · Convex lens refraction light LN2 · · Convex lens focus LN3 · · Reflecting light of illumination device

N90 ... Free light 90 degrees N75 ... Free light 75 degrees N45 ... Free light 45 degrees N35 ... Free light 35 degrees NH0 ... Free light reflection direction NH1 ... Free light reflection direction 1 NH2 ... Free light reflection direction 2
P0 ·· Reference light intersection P1 ·· Focal position P2 ·· Focal positions P10 to 12 of first aggregating part ·· Area point P20 without vertical reflection wings ·· Area angle P30 without vertical reflection wings Lower limit angle SL1 ・ ・ Sunlight incident angle

Claims (7)

  A solar concentrator provided with a mirror surface for receiving sunlight, reflecting reflected light reflected from the mirror surface indoors, and transmitting the reflected light indoors using a light guide material. The incident light is divided by a plurality of unit light collecting tubes having substantially the same shape juxtaposed in the light collecting tube, and the reflected light is applied to the light first aggregation portion at a predetermined position at the outlet of the light collecting tube by the curved reflector. Collected, reflected from the first light aggregating part and collected in a narrow range, and then collected in a narrower range in the second light aggregating part and sent to a light guide material .   The sunlight condensing device according to claim 1, wherein the direct irradiation light of sunlight irradiated on the outer wall of the building is condensed and the condensed light is transmitted indoors.   The solar light collecting apparatus according to claim 1, wherein the solar light collecting apparatus is directly attached to a steeply inclined building roof material in accordance with the slope.   The solar light collecting device according to claim 1, wherein the handrail outer surface is a mirror surface.   2. The sunlight according to claim 1, wherein a mirror surface capable of receiving sunlight is installed at a rocking place such as on a water facility such as squid and a ship, and the condensed light is transmitted to the water or indoors. Concentrator.   2. The solar light collecting apparatus according to claim 1, wherein the daylighting portions are arranged in a uniform manner such as a grid pattern or a radial pattern and are integrated in a planar manner to form a plate shape as a whole.   2. The solar light collecting device according to claim 1, wherein the solar light collecting device is used as a decorative material attached to a roof or an outer wall of a building.

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