JPH01229216A - Sunshine collection system - Google Patents

Abstract

PURPOSE:To collect the sunshine with high accuracy by providing two rotary shafts for sunshine tracking to a light gathering part where the focuses of a light collection part and a reflection part are made incident with each other, and using one of them as the rotary shaft of the light gathering part and the other one as the rotary shaft of the integrated body of the light gathering part and reflection part. CONSTITUTION:Reflection mirrors 1 and 2 which constitute a light collection part has their focus coincident with each other and the reflection mirror 1 is rotated by a driving motor 4 around a rotary shaft 5 in an altitude direction. Further, the mirror can be rotated in an azimuth direction by a column 3 which has its center of rotation on a perpendicular containing the focus of the reflection mirror. The reflection mirror 2 is supported on a column 6, which is not coupled with the driving motor 4 and serves as a nonrotary shaft, so the reflection mirror 2 rotates only in the azimuth angle direction together with the reflection mirror 1 in one body as the column 3 rotates. The sunshine which is collected by the reflection mirror 1 is reflected by the reflection mirror 2 irrelevantly to the position of the reflection mirror 1 which tracks the sun and travels downward perpendicularly through the window 7 of the column 3.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a system for sending sunlight into rooms where sunlight does not directly enter, and is particularly suitable for the multipurpose use of sunlight and is highly efficient. Concerning daylighting and transmitting solar lighting systems.

[Conventional technology]

A known example that is similar to the present invention in terms of converting collected light into well-parallelized light is a solar lighting system described in "Solar Lighting Utilization Technology and Its System Development" p. 43. Further, as a known example of a system for transmitting condensed light using a mirror, there is a known example described in JP-A-52-12848, which is similar to the present invention.

[Problem to be solved by the invention]

The former of the above known examples uses four reflecting mirrors, but it is generally known that when one mirror is used, more than 10% of the light is lost due to mirror absorption and diffuse reflection. When a mirror is used, the light intensity is attenuated to at least 65% of the incident light just in the lighting section. Furthermore, in the case of this known example, the simplest control method is when tracking the sun using a movable plane mirror as the center, but even in that case, the rotating parabolic reflector and the plane mirror are linked and rotated at different angular velocities. The control mechanism is complicated. In general, in a system that transmits focused light, it is transmitted several tens of meters within a building, so a slight angular error in the light results in a large displacement error.

Therefore, in the case of this known example, extremely high precision technology is required to control the angle, resulting in high costs. On the other hand, in the latter of the above-mentioned known examples, the light from the plane mirror is collected at the focal point of the paraboloid and the focused light is transmitted, but the reflected light from the plane mirror is the light reflected at one point within each plane mirror. The light reflected by the parabolic mirror is out of focus except for
~40 degrees off. For example, if we consider the case where this light is transmitted through a light duct, since the parallelism is extremely poor, it will be reflected many times within the light duct and most of the light will be attenuated.

Therefore, the transmission efficiency is very poor. If we consider the case where the transmission section in this known example is composed of optical fibers, the light emitted from the parabolic mirror is focused at most 10 times as much and has a low energy density, so a large number of optical fibers would be required and the cost would be extremely high. Become. In addition, in this system, since the parallelism is poor, there is a high percentage of the optical fibers deviating from the optical axis, and the reflection loss of light at the optical fibers becomes large, making it extremely inefficient. Furthermore, in the above known example, it can be easily assumed that a parabolic mirror is used instead of a plane mirror and pre-focused light is used, but in that case, the parabolic mirror will not focus depending on the position of the sun, In the end, light with poor parallelism is emitted, resulting in poor efficiency. In addition, in order to reduce the deviation from the focus of the parabolic mirror, each plane mirror is made smaller (this is done by changing the shape of a large mirror made up of many plane mirrors to track the sun and direct the light to the focus of the parabolic mirror). Although it is easy to think of a case where the light is condensed), each plane mirror needs to be controlled independently to a different angle, and the control is complicated and requires a large number of drive parts, which is expensive.

An object of the present invention is to provide a sunlight lighting system that can collect and collect sunlight with high efficiency.

In addition to the above, another object of the present invention is to provide a sunlight lighting system that can perform solar tracking with simple control (at low cost) while maintaining parallelism.

[Means to solve the problem]

In order to achieve the above object, the present invention has a solar lighting = 8- system configuration consisting of a lighting section that converts sunlight into parallel rays with high energy density and a transmission section that transmits the concentrated parallel rays. consists of a condensing section consisting of one optical element having a focal point for concentrating sunlight and a reflecting section consisting of one optical element having a focal point for converting the condensed light into parallel rays. , the focal point of the condensing part and the reflecting part are made to match, and the lighting part is provided with two rotation axes for tracking the sun, one of which is the rotation axis of the condensing part, and the focus is on the line passing through the focal point. It is characterized by the fact that it is provided in

In addition, in the above, the remaining one of the two rotation axes is the rotation axis of the integrated unit consisting of the condensing part and the reflection part, and this axis is provided on a line passing through the focal point, or this axis is set as the optical axis of the reflection part. Place on parallel lines.

Further, in addition to the above, the remaining one of the two rotation axes may be used as the rotation axis of the condenser, and this axis may be provided on a line passing through the focal point.

In addition, in the above, the daylighting section is composed of one curved mirror that collects sunlight and one curved mirror that converts the collected light into parallel light, or the daylighting section is made up of one curved mirror that collects sunlight. It consists of a lens and a curved mirror that converts the collected light into parallel light.

Moreover, in the above, it is preferable that of the two rotation axes, the rotation axis of the integral body consisting of the light condensing part and the reflection part is in the vertical direction.

Moreover, in the above, it is effective to provide a non-rotating shaft coaxial with the rotating shaft of the condensing section among the two rotating shafts, and to fix and support the reflecting section on this non-rotating shaft.

Further, in the above, when the two rotation axes are made to pass through the focal point, it is effective to fix the reflecting section.

[Effect]

In the case of solar lighting systems, high efficiency and low cost are important technical issues for practical application. Considering the efficiency of the above-mentioned known examples, reasons include the large number of reflections on the mirror in the lighting section, resulting in severe attenuation of the light, or the poor parallelism of the condensed light, which causes a large number of reflections on the light transmission section. The system efficiency is about 30% at most. Therefore, by reducing the number of reflections at the lighting section and obtaining focused light with good parallelism,
Highly efficient optical transmission becomes possible, and the efficiency problems of conventional technology can be solved. Furthermore, when considering the cost,
Generally, in terms of cost, it is far more advantageous to transmit concentrated light to the optical duct 1 or to a mirror than to use an optical fiber.

However, in the case of optical ducts and mirrors, a slight angular error can lead to an increase in the number of reflections or leakage from the transmission space.
Conventional technology requires a highly accurate and complex control mechanism and does not lead to cost reduction. However, if you reduce the number of driving parts in the lighting section, make the direction of light travel determined by the geometric shape and arrangement as much as possible, and reduce the errors produced by the driving parts in principle, the light will always be focused in a fixed direction. can be easily sent.

Therefore, drive control becomes simple, and transmission via an optical duct or the like becomes possible without causing a decrease in efficiency, so that cost problems can be solved.

〔Example〕

The basic configuration of the lighting section of the present invention will be explained using FIG. 1.

The lighting section is composed of two parabolic mirrors of revolution.Reflector 1 collects sunlight, and reflector 2 makes the light coming from reflector 1 parallel and always sends it in a fixed direction.

In order for the reflecting mirror 1 to focus sunlight on one point, the optical axis of the reflecting mirror 1 must always be directed toward the sun, and this driving operation is generally called solar tracking.

The sun tracking method according to the present invention will be explained using FIG. 2. Considering the case where the sun moves along the dot-dashed line in Fig. 2, in order for the reflector 1 to track the sun, the optical axis of the reflector 1 must be rotated in the azimuth direction and the altitude direction in the direction of the sun. It can be seen that it is possible to match the Therefore, the lighting section has a structure having two rotation axes. As shown in FIG. 1, the reflecting mirror 1 is rotated in the altitude direction by a drive motor 4 about a rotating shaft 5, and the rotating shaft 5 is placed on a line that includes the focal point of the reflecting mirror 1. On the other hand, the structure is such that it can be rotated in the azimuth direction by a support 3 having its rotation center on a vertical line that includes the focal point of the reflecting mirror 1. Next, the reflector 2 is supported by the support 6 and
is not connected to the drive motor 4 and is a non-rotating shaft. Therefore, the reflecting mirror 2 is configured to rotate only in the azimuth direction as the support column 3 rotates. The pillar 3 is equipped with a window 7 to let in the concentrated light, and the drive part 9 inside the pedestal 8 is also hollow to ensure a passage of light. It is kept within 16. Next, the geometric configuration of the present invention will be explained using FIG. Reflector 1 and reflector 2 have their respective focuses aligned,
The rotational axis of the reflecting mirror 1 in the altitude direction and the rotational axis of the reflecting mirrors 1 and 2 in the azimuth direction are both provided on a line passing through the focal point. In the case of this configuration, even if the reflecting mirror 1 is rotated in the azimuth direction or the altitude direction for solar tracking, the focal point position does not change because the axis of rotation passes through the focal point. Furthermore, the optical axis of the reflecting mirror 2 of the present invention is fixed in the vertical direction, but as shown in FIG. 4, in the case of a parabolic mirror, the light passing through the focal point is always reflected in the optical axis direction. , the light reflected by the reflecting mirror 2 travels vertically downward regardless of the position of the reflecting mirror 1 that tracks the sun. In this case, if a reflector 2 with a short focal point is used, it is possible to achieve a high concentration of light, and the light reflected by the reflector 2 can be reflected on or near the vertical line of the focal point, and the focused parallel light is always sent to the window 7. I can put it in. Furthermore, the present invention may be used in areas where the solar altitude is high, and in that case, as shown in FIG. I'll keep it. Next, FIG. 5 shows a basic configuration diagram of the optical transmission section of the present invention. In the case of the present invention, since the degree of parallelism is high, it is possible to transmit light using a light duct or a reflecting mirror. The collected light is spatially transmitted through the light duct 10, and when guided to each room, a portion of the light is taken out using the mirror 11 and transmitted to each room. The mirror 11 is a half mirror that reflects several tens of percent of the incident light, or only a part of the mirror surface is output to the transmission section, and a part of the transmitted light is guided into the room. The light guided into the room is uniformly scattered and taken into the room by the scatterer 12.

FIG. 6 shows a specific embodiment of the present invention. The reflector 1 that tracks the sun has a diameter of 1 m, and the cross-sectional shape passing through the center is Y.
=aX'' type paraboloid of revolution.

The focal length is then set to 0.75m. (The cross-sectional shape of the paraboloid of revolution is y=o, aa3x''.) On the other hand, the reflecting mirror 2 is also a paraboloid of revolution, the focal length is 0.05 m, and the cross-sectional shape is Y=5X2. The arrangement of the reflecting mirror 1 and the reflecting mirror 1It2 is as shown in Fig. 7.Reflecting mirror 1
As shown in FIG. 6, the reflector 1 is supported by a support 3 that rotates in the azimuth direction, and a support 13 is fixed at the periphery of the reflecting mirror 1.

Further, the support column 13 is rotated in the altitude direction by the drive motor 4. The drive motor 4 and the drive motor 14 are controlled by a control power source]5 having a control calculation circuit that calculates the sun position from the date and time, and the drive motor 4 is controlled by a human-powered AC
Use about 100V, 5W, gear ratio 1000-3
Reduce the speed using the 000 reduction gear.

On the other hand, the drive motor 14 also has an input AC of 100V.

Use a power source of about 10 W and reduce the speed using a reduction gear with a gear ratio of 1000 to 3000. Reflector 1 is made of aluminum coated with silver, which has good reflectance, and has a thickness of 1
Set it to about mm. The weight of the reflector at that time is 3.5k.
g, and the drive motor 4 and aluminum support 13
Even if it is added, it is less than 10 kg. Therefore, the pillar 3 is made of iron and has a cross section of several d. The lighting part is an acrylic dome 16 with a diameter of 1.5 m and a thickness of about 5 m.
Keep it inside. Also, the light reflected by the reflecting mirror 2 is φ20−
The signal is sent to the optical transmission section through the window 7. Next, FIG. 8 shows the calculation result of the parallelism of light coming out from the condenser of the present invention. From this result, approximately ±2 degrees of parallelism can be obtained. It can also be confirmed by calculation that light with a condensing ratio of about 100 can be obtained. FIG. 9 shows an example based on this result. The light transmission section is a light duct with a diameter of about 20 cil+ coated with a reflective film 17 on the inner surface, and the light is transmitted to each room through this light duct 10. In order to guide the light traveling straight to each room, a reflective film 1 is partially installed as shown in Figure 10.
7, or a reflecting mirror is protruded from a part of the light duct to take out part of the incident light, or a half mirror that reflects only part of the incident light is used. The system efficiency of the present invention is that if the distance to each room is approximately 20 m, most of the focused light (~7
0%) is transmitted within the duct 10 within one reflection,
Since the light is carried to each room by mirrors, the loss of light in the light transmission section is about 25%. The proportion of light that is transported to each room (system efficiency) of the collected light can be achieved at approximately 55%.

According to the present invention, sunlight can be collected and transmitted with an efficiency close to 55%, which is higher than the prior art (~30%). moreover,
The mechanism of the condensing part is simple, and the light transmission part is composed of a light duct and a mirror, making it extremely inexpensive (1/3 to 1/3 of the cost of conventional systems when evaluated in terms of cost per unit of light energy collected and transmitted). 1/2) Since it can be manufactured and the control mechanism is simple in principle, it is advantageous in terms of maintenance and reliability.

Next, FIG. 11 shows a case where a lens is used as an optical element for tracking sunlight. A Fresnel lens with a diameter of 1 m is used as the condensing lens 18.

The focal length of the lens is 0.75m. As the reflecting mirror 18, a parabolic mirror of revolution with a focal length of 5 cm is used, and the axis of rotation in the altitude direction is set on the axis passing through the focal point. The reflecting mirror 2 is supported by a non-rotating shaft 19, the optical axis of the reflecting mirror 2 is directed vertically downward, and the body part 20 of the condenser secures an optical path.
An open part 21 is provided at the lower end, or the body part is made of a transparent material such as acrylic. In addition, the pedestal 22. Control power supply 2
The 3° drive motor 24 and optical transmission system are exactly the same as in FIGS. 6 and 9. In recent years, Fresnel lenses with fairly high light collection efficiency have appeared, and the light collection section shown in Figure 11 can achieve an efficiency of nearly 75%, and is approximately the same in cost as the embodiment shown in Figure 7. Conceivable. In the case of this example, unlike in the case of a reflector, the optical element that tracks the sun does not block the path of the focused light, so the effect of effectively using the incident light is that this system also achieves approximately 55% Efficiency is achievable.

Next, FIG. 12 shows a modified example of the concentrator of the present invention. A reflecting mirror 26 that makes the focused light parallel and reflects it in a predetermined direction is aligned with the focal position of the reflecting mirror 25 that tracks the sun, and The tracking reflector 25 tracks the sun around the focal point. The reflecting mirror 26 is fixed with a support 27, the optical axis of the reflecting mirror 26 is directed diagonally downward, and light is introduced into the building through the window 28. According to this modification, the light focused by the reflecting mirror 25 always passes through the focal point, and the light with good parallelism is focused in the optical axis direction of the reflecting mirror 26 regardless of the position of the sun, so that the mount can be rotated. This has the effect of transmitting the focused light to points other than the axis. For example, as a system using this modification, the 13th
As shown in the figure, it is possible to condense light from a number of condensers to one point, and transmit the condensed light together into one optical duct 30 by one reflection by a conical or polygonal pyramid-shaped mirror 29. This makes the system advantageous both in terms of system cost and efficiency.

The embodiment shown in Fig. 7 is an example in which the sun is tracked in the azimuth direction with the focus position as the center, but in Fig. 14, the sun is tracked in the azimuth direction at a single point on the reflector at the rotation center in the azimuth direction. show. The reflecting mirror 31 and the reflecting mirror 32 rotate in the azimuth direction on the same rotating body 33, and the center of rotation is on a line passing through the reflecting mirror 32. The drive mechanism, control mechanism, and transmission mechanism are the same as those shown in FIG. In this case, there is no difference from the embodiment shown in FIG. 6 in terms of efficiency and cost, but the point of incidence of the focused light on the window 7 hardly moves during tracking in the azimuth direction, and always passes near the center. This has the effect of making the optical duct 34 smaller.

=19- Generally, spherical mirrors are easier to manufacture and cheaper than parabolic mirrors. However, as shown in Figure 15, with a spherical mirror, light that enters near the center focuses at a point half the radius, but light that passes through a point far from the center deviates significantly from the focal point. It has the following characteristics. Therefore, a condensing section using a spherical mirror can be constructed by using only the portion where the reflected light hardly deviates from the focal position. 16th
An example is shown in the figure. In the case of FIG. 16, the diameter of the spherical mirror 35 is 1 m, and a spherical mirror whose cross section can be represented by a curve of Y2+X2=1/2 is used. Similarly, a curved mirror is used for the reflecting mirror 36, and the cross section of the reflecting mirror 36 is Y2+X2=
A spherical mirror that can be represented by a curved surface of 1/200 is used. In this case, the spread of the light angle upon reflection by the spherical mirror can be made almost the same as that of a parabolic mirror, and in terms of efficiency, it is possible to construct something that is almost the same.

Furthermore, since the cost of a spherical mirror is several times lower than that of a parabolic mirror, a system can be constructed at a lower cost. In the above embodiments, all concave mirrors are used as reflecting mirrors that convert the collected light into parallel light, but a convex mirror can also be used in the same configuration. An example is shown in FIG. The focus of the reflecting mirror 37 that tracks the sun is made to coincide with the focus of the convex reflecting mirror, and the sun is tracked around the focal point. In this case as well, effects similar to those of the embodiment shown in FIG. 6 are produced.

The above embodiments and modifications focused on the light condensing section.Next, embodiments and modifications regarding the control and drive mechanism will be described. In the embodiment already described, the solar altitude is determined from the year, month, date, and time using an arithmetic circuit, and the signal is sent to the drive mechanism to track the sun, but the same method can be achieved using a sensor that detects the direction of the sun. be able to. For example, the first
As shown in Figure 8, four or more sunlight sensors 39 are installed around a pinhole 42, and the sensor that detects which direction the sun is facing with respect to the sun from the output difference is placed on a paraboloid that tracks the sun. Leave it on. Then, the drive motor 4o and the drive motor 41 drive the reflector 43 according to the output difference of the sensor 39.
to drive. Therefore, according to this embodiment, it is possible to track the sun with a simple mechanism, leading to a reduction in the cost of the system.

Next, although FIG. 6 shows an example in which an external power source is used as the power source for the drive mechanism, the same thing can be done using a solar cell or a battery. An example is shown in FIG. A solar panel 45 is installed near the light collecting section 44, and its output is supplied to the drive motor 47 and the drive motor 48 through the battery 4G. This allows stable power supply regardless of the amount of solar radiation. The battery 46 has a capacity of 40 Ahr, and the solar panel 45 has a capacity of about 40 W. Drive motor 47 and drive motor 48
are rated DC24V and 0.5A, respectively.

Use one with a rating of DC 24-V and about 0.2 A.

This allows a light collection system that does not require an external power source to be constructed. According to the present invention, even if the external power supply is stopped due to a power outage or the like, there is an effect that the collected light can be transmitted.

Further, FIG. 20 shows an embodiment in which an external power source and a battery are combined. Electric power from a commercial power source is converted to DC 24V through a converter 49 and supplied to a battery 50 and drive motors 47 and 48. Then, the amount of charge is detected from the voltage value of the battery 5o, and power is supplied from an external power source to keep the battery 50 in a constant state of charge.

The present invention also has the effect that the collected light can be transmitted even if the external power supply is stopped.

Next, embodiments and modifications of the optical transmission section of the present invention will be described. 9th
Although the figure shows an embodiment of the distribution method to each room using a half mirror or a reflector, a modified example is shown in FIG.

Light sent from the lighting section 52 is sent into the building 51 through a light duct 53, and an optical fiber 54 is used when branching to each room. This makes it easy to distribute to each room, and the length of optical fiber required is extremely small (173 mm when transmitting everything as optical fiber).
~1/4), which has the effect of making it possible to easily distribute light without increasing the cost too much.

When concentrating and transmitting light using a reflecting mirror, the spectrum of light is almost equal to the incident light, but depending on the application, it may be better to cut out specific wavelengths such as ultraviolet rays, or when cultivating plants, it may be better to cut out specific wavelengths such as ultraviolet rays. In some cases, it may be advantageous to increase the amount of light with a specific absorption wavelength. Therefore, FIG. 22 shows the transmission spectrum when an absorber or a wavelength converter is provided.

As the ultraviolet absorber, a plate having ultraviolet absorption properties such as glass is provided in a part of the light transmission section. As a result, ultraviolet rays are almost eliminated, and problems such as discoloration caused by indoor ultraviolet rays do not occur. Furthermore, as shown in FIG. 23, if a filter 55 containing a wavelength converter such as eosin is installed at the end of the optical transmission section and plants are cultivated in that room, the absorption rate will be reduced on the short wavelength side, which has a relatively low absorption rate. Good for converting to long wavelengths.

Forced cultivation becomes possible.

Furthermore, depending on the application, it may be necessary to adjust the light as necessary. FIG. 24 shows an embodiment in which the present invention is used. Light shielding body 5 for adjusting the amount of light
6 is installed in the optical deck 1-5 and is rotatable by a motor 58, and a control switch 59 is installed in each room. Further, FIG. 25 shows a modification in which a light shielding body 60 is attached to the end of the transmission section to adjust the light. Both have the effect of being able to adjust the amount of light as needed. FIG. 26 shows an embodiment in which a liquid crystal shutter 61 is used, and since there is no mechanical drive unit, the reliability is high.

In the embodiment of the present invention, as a method for distributing light from a light duct, examples such as a partially protruding reflecting mirror of the half mirror 1, an optical fiber, and a mirror partially coated with a reflecting film have been shown.
When changing the distribution ratio of the condensed light, operations such as replacing it with a new one or changing the mounting position are required. Therefore, if an optical element that can electrically change the light distribution ratio is used, this optical element 62 can be attached to the branch point of the optical duct as shown in Fig. 27, and the user can select the optimal one according to each application. This makes it possible to perform distribution. moreover,
By combining the circuit 63 with a simple calculation function and the sensor 64 that measures the amount of solar radiation, it becomes possible to calculate the optimal distribution ratio according to the amount of solar radiation at that time and send light into the building. , it is thought that the efficiency of solar utilization will improve.

〔Effect of the invention〕

In the present invention, since the condensing section is composed of only two mirrors, the condensing section can achieve a high efficiency of about 80%, which is 30% higher than that of the known prior art. In addition, the light condensing section in the present invention is driven only in two axes: the azimuth direction and the altitude direction. Reflectors that do not track the sun do not require rotation in the altitude direction, and in the azimuth direction, rotation is not necessary if the focal point is the central axis of rotation, and if a point other than the focal point is the center of rotation. In this case, it is sufficient to simply fix it to the same rotating body as the reflector that tracks the sun. Therefore, if the positioning is done accurately at the manufacturing stage, in principle, the focused light can always be transmitted in the same direction, which eliminates the need for a precise drive mechanism, resulting in a simple and low-cost system. Moreover, the axis of rotation in the azimuth direction is an optical component with two focal points (
In the case of Figure 1, it can be placed between two reflecting mirrors), making it possible to reduce the radius of rotation when tracking the sun. Therefore, the diameter of the transparent dome that is generally attached to the concentrator can be reduced, which is advantageous in terms of cost and also in terms of site utilization. Furthermore, in principle, the present invention is configured to obtain perfectly parallel rays, and the reason why the condensed light deviates from the parallel rays and has a certain width in the traveling direction is the incident sunlight itself. This is due to the variation in Therefore, in terms of parallelism, it can achieve the highest value of systems using conventional optical systems.

In reality, the light emitted from the condenser has a width of several degrees, but if the width is this wide, it is possible to transmit the light using mirrors or optical ducts, and in the case of a typical building, most of the light Light can be transmitted to a specified location by reflecting it several times. Therefore, a system efficiency of nearly 55% can be achieved, which exceeds the efficiency of the prior art (approximately 30%) in concentrating solar lighting systems. Generally, when optical fibers are used, the optical transmission section accounts for 30 to 60% of the cost of the system, but since it is possible to transmit light using mirrors or optical ducts, the cost of the optical transmission section is only 10% of the cost when using optical fibers. This is extremely advantageous in terms of cost. Furthermore, since the present invention completely tracks the sun, the intensity of the concentrated light remains constant on clear skies, which is convenient for utilizing sunlight, and the intensity of the concentrated light can be transmitted, so the intensity is high. From applications that require high light intensity to applications that do not require much light intensity.
It is advantageous in that it can be used for multiple purposes.

[Brief explanation of the drawing]

Fig. 1 is a basic configuration diagram of the present invention, Fig. 2 is an explanatory diagram of solar tracking, Fig. 3 is a diagram of the operating principle of the present invention, Fig. 4 is a diagram of the operating principle of the present invention, and Fig. 5 is an illustration of the operating principle of the present invention. Basic configuration diagram, FIG. 6 is a diagram showing an embodiment of the present invention, FIG. 7 is a diagram showing an embodiment of the present invention, FIG. 8 is a diagram showing calculation results of parallelism, and FIG. 9 is a diagram showing an embodiment of the present invention. FIG. 10 is an explanatory diagram of the constituent elements of the present invention. FIG. 11 is a diagram showing an embodiment of the present invention. FIG. 12 is a diagram showing an embodiment of the present invention. FIG. 14 is a diagram showing an embodiment of the invention, FIG. 15 is an explanatory diagram of a spherical mirror, FIG. 16 is a diagram showing an embodiment of the invention,
Fig. 17 shows an embodiment of the invention, Fig. 18 shows an embodiment of the invention, Fig. 19 shows an embodiment of the invention, and Fig. 20 shows an embodiment of the invention. 21 is a diagram showing an embodiment of the present invention, FIG. 22 is an explanatory diagram of an optical spectrum, FIG. 23 is a diagram showing an embodiment of the present invention, and FIG. 24 is a diagram showing an embodiment of the present invention. , FIG. 25 is a diagram showing an embodiment of the invention, FIG. 26 is a diagram showing an embodiment of the invention, and FIG. 27 is a detailed explanatory diagram of the invention. 1... Reflector, 2... Reflector, 3... Support, 4...
... Drive motor, 5... Rotating shaft, 6... Support column, 7...
・Window, 8... Frame, 9... Drive unit, 1o... Light duct, 11... Mirror, 12... Light scatterer, 13...
Pillar, 14... Drive motor, 15... Control power supply, 1
6...Dome, 17...Reflection film, 18...Lens,
19... Non-rotating shaft, 20... Body part, 21... Open part, 22... Frame, 23... Control power supply, 24...
Drive motor, 25...Reflector, 26...Reflector, 2
7... Support column, 28... Window, 29... Optical component, 30
...Light duct, 31...Reflector, 32...Reflector, 33...Window, 34...Light duct, 35...Spherical mirror, 36...Reflector, 37...Reflection Mirror, 38...Reflector, 39...Sensor, 40...Drive motor, 41
... Drive motor, 42... Pinhole, 43...
Reflector, 44... Concentrator, 45... Solar panel, 46... Battery, 47... Drive motor, 48
... Drive motor, 49... Converter, 50...
Battery, 51...Building, 52...Light collecting section, 53
・・Light duct 1-154・・Optical fiber, 55 Filter, 56・・Light shielding body, 57・・Light duct, 58・・Immediate action motor, 59・Control switch, 60・・Light shielding body, 61
...Liquid crystal shutter, 62...Optical components, 63δ-mount ratio 2 5 Zenith ground ¥/=Reflector 2, anti-body ↑Mirror 4th day 2 Reflected sound No. 5 Mouth 10...Light, da° riF 11 All sets No. 2-L scattering 1 - India, /6 ° Do-1 No. 7 No. 70 No. 110 Reflection Absorption No. 11 Material No. /3 Eye 2c/-L palm P 75 Kunibe weight O 35・Bacterial pleasure rate /b Bacteria 36...Reflection enemy 17th Day 37 Reflexion 1 Katsu 38-Anti-JET 擾 (No. 1δ Warmth rate 19 圀4δ 44...Collection f, Part 45 ・People's support 5pWflL/ 4δ...KomatIJ7-ta No. 20 49,・Kono\-ta 50 Hasotery No. 21 S3 Yutaku L 54, t7F/v - No. 22 liquid length (Kari No. 23 Hibiki 53 /l Turkt, S! 5 - Filter No. 24 Person 1 26th mouth 6I-λ

Claims (1)

[Claims] 1. In a solar lighting system consisting of a lighting section that converts sunlight into parallel rays with high energy density and a transmission section that transmits the concentrated parallel rays, the lighting section is The light condensing section consists of a single optical element having a focal point for converting the condensed light into parallel rays, and the reflecting section consists of a single optical element having a focal point for converting the condensed light into parallel rays. The focal point of the solar panel is made to match, and the lighting section is provided with two rotation axes for tracking the sun, one of which is used as the rotation axis of the light condensing section.
A solar lighting system characterized by being installed on a line passing through a focal point. 2. In claim 1, the remaining one of the two rotation axes is an integrated rotation axis consisting of a light condensing part and a reflection part,
A solar lighting system characterized by having this axis on a line passing through the focal point. 3. In claim 1, the remaining one of the two rotating shafts is an integrated rotating shaft consisting of a light condensing part and a reflecting part,
A solar lighting system characterized in that this axis is provided on a line parallel to the optical axis of the reflecting section. 4. The solar lighting system according to claim 1, characterized in that the remaining one of the two rotation axes is the rotation axis of the light condensing section, and this axis is provided on a line passing through the focal point. 5. A solar lighting system according to claim 1, characterized in that the lighting section is composed of one curved mirror that collects sunlight and one curved mirror that converts the collected light into parallel light. system. 6. A sunlight daylighting system according to claim 1, characterized in that the daylighting section is composed of one lens that collects sunlight and one curved mirror that converts the collected light into parallel light. . 7. In claim 2 or 3, the above-mentioned 2
A sunlight daylighting system characterized in that the rotation axis of an integrated unit consisting of a light condensing part and a reflecting part is vertical. 8. In claim 2 or 3, the above 2
A solar lighting system characterized by having a non-rotating shaft coaxial with the rotating shaft of a light condensing part among the two rotating shafts, and a reflecting part fixed and supported by the non-rotating shaft. 9. A solar lighting system according to claim 4, characterized in that the reflecting part is fixed. 10. A solar lighting system according to claim 1, characterized in that a commercial power source is used as a driving power source for the lighting section. 11. A sunlight daylighting system according to claim 1, characterized in that it has a battery as a driving power source for the daylighting section. 12. A solar lighting system according to claim 1, characterized in that it has both a solar cell and a battery as a driving power source for the lighting section. 13. In claim 1, the light sent from the lighting section is transmitted through one of an optical fiber, a light duct, and a mirror.
Or a solar lighting system characterized by providing a means for transmitting light using a combination of these. 14. A solar lighting system according to claim 13, characterized in that a reflector is provided for extracting and distributing part of the light transmitted into the building. 15. A solar lighting system according to claim 13, characterized in that a scatterer is provided for uniformly irradiating the transmitted light indoors. 16. A sunlight daylighting system according to claim 13, comprising an absorber or a wavelength converter that converts the transmitted light into a light spectrum suitable for a predetermined use. 17. A solar lighting system according to claim 13, characterized in that an optical component for adjusting the amount of transmitted light is provided. 18. Claim 13 is characterized in that a plurality of lighting sections are provided, and an optical component for consolidating the light from the plurality of lighting sections into one beam is provided in front of the means for transmitting light. Solar lighting system. 19. A solar lighting system consisting of a lighting section that converts sunlight into parallel rays with increased energy density, and a transmission section that transmits the parallel rays from the lighting section, wherein the lighting section is configured to convert sunlight into parallel rays with increased energy density. a light condensing section composed of an optical element having a focal point for converting the condensed light into parallel rays, and a reflecting section composed of an optical element having a focal point for converting the condensed light into parallel rays, and the condensing section and the reflecting section and the solar tracking of the condensing section is performed by rotating around the focal point, so that the optical axis of the optical element constituting the reflecting section and the parallel rays from the reflecting section are incident. The solar lighting system is installed so that the entrance part of the transmission part is parallel to the entrance part of the transmission part. 20. A solar lighting system comprising a lighting section that converts sunlight into parallel rays with increased energy density, and a transmission section that transmits the parallel rays from the lighting section, wherein the lighting section is configured to convert sunlight into parallel rays with increased energy density. a light condensing section composed of an optical element having a focal point for converting the condensed light into parallel light beams, and a reflecting section composed of an optical element having a focal point for converting the condensed light into parallel rays, and the condensing section and the reflecting section and making the optical axis of the optical element constituting the reflecting section parallel to the vertical line of the window of the transmitting section into which the parallel light rays from the reflecting section are incident, so that the focusing section and the reflecting section The rotation axis is set parallel to the optical axis of the reflecting part, and the sun tracking of the light collecting part is controlled by the rotation of the rotation axis of the integral part and the rotation of the rotation axis passing through the focal point. A solar lighting system configured with