JP2005033254A - Super lightweight electromagnetic wave converging device of high space density reflecting mirror integrated type - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electromagnetic wave converging device capable of integrating and mounting a plurality of reflecting mirrors with high space density and coping with the requirement of a lower cost than that of the conventional confocal type, in the converging device adopting an incorporated large structure coping with the requirement of a large area. <P>SOLUTION: The electromagnetic wave converging device adopts a method of integrating and mounting a plurality of the reflecting mirrors each forming part of a paraboloid of revolution or a curved surface imitating it with high space density while directing the reflecting mirrors in particular directions and for that purpose, employs a form wherein an element support structure for supporting the respective reflecting mirrors at their circumferential edges individually is used for a basic unit and the support structures are coupled to each other for collectively supporting all the reflecting mirrors as the entire support structure or a form wherein a group support structure for collectively supporting some of the reflecting mirrors is used and the other group structure or the element support structure is coupled to the group support structure to obtain the entire support structure. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electromagnetic wave focusing device used as a condensing device for utilizing solar energy or an electromagnetic wave transmitting / receiving device for communication for transmitting and receiving.
[0002]
[Prior art]
As a conventional electromagnetic wave focusing device, an electromagnetic wave reflecting surface obtained by forming a metal thin film or a net in a parabolic shape and applying a light and rigid resin such as CFRP (carbon fiber reinforced plastic) is used. However, it is difficult to achieve high accuracy, light weight, and low price at the same time in the case of an integrated large-scale structure corresponding to a large area requirement. Higher accuracy generally involves an increase in weight. To maintain high accuracy while reducing the weight, it may be necessary to actively control the mirror surface accuracy, which leads to a significant increase in price. In particular, it cannot cope with the revolutionary weight reduction required for the electromagnetic wave focusing device for space.
For space use, the gas expansion type has been studied mainly in the United States in order to reduce the weight, but it is extremely difficult to form a paraboloid with sufficient accuracy. In order to enclose gas, it is necessary to install a transparent film in front of the reflecting surface, and electromagnetic waves pass through the gas layer twice before reaching the focal point. Since the transparency is not sufficient, there is a considerable loss especially when collecting sunlight. Non-Patent Documents 1 and 2 introduce the technology and problems associated with this gas expansion type electromagnetic wave focusing device for space use. In the case of space use, it is assumed that space debris collides with the film. In this case, the gas from the hole generated by the collision flows out, resulting in a pressure drop and a rotating paraboloid shape. With the problem that it becomes difficult to maintain. In addition, the present inventors have developed and prototyped a polymer film collector mirror as an ultralight solar collector mirror and published it in Non-Patent Document 3 and Non-Patent Document 4.
[0003]
In order to meet the demands for high precision, large size, light weight, and high spatial density, the technology of segmented mirrors, in which a single large mirror is divided into many parts, has been widely adopted. This problem is solved by sharing the focus of each split mirror. However, when this method is employed, one special large-sized transmission / reception member (component / device) is required as a constituent member arranged at the focal position. In this case, if that one member fails, all functions of the system are lost. If the system is installed in outer space, it will be the end of a volume if it is broken, such as when debris collides. Moreover, since this member is generally a custom-made product, it is expensive. Further, since the entire configuration of this system constitutes a huge condenser mirror, it becomes a three-dimensional structure that takes place not only in area but also in the axial direction. Therefore, it is very troublesome to transport and store it. This large-area reflector split type system is not suitable for space use because of the high cost and low reliability as well as the large transportation burden.
Under such circumstances, the National Aerospace Laboratory has recently conducted research on an ultralight electromagnetic wave focusing device including a solar condensing mirror made of a film material. Japanese Patent Application No. 2002-302695 “Thin Film Deploying Structure, Thin Film Deploying Method therefor” And a thin film deployment unit and a thin film deployment system ", Japanese Patent Application No. 2003-62584" Solar Thermal Propulsion System, and Method for Voluntary Disposal of Used Artificial Satellites Using the Same ", Japanese Patent Application No. 2002-239694," Ultralight Electromagnetic Focusing Device " And its manufacturing method "and Patent Document 1 relating to focusing by two orthogonal line-focus reflectors have been filed earlier, but as a technique on the extension line, research on a high spatial density integration method of many reflectors Has been reached.
[0004]
[Patent Document 1] Japanese Patent Laid-Open No. 2003-124741 Published on April 25, 2003 "Variable Focal Length Electromagnetic Focusing Device"
[Non-Patent Document 1] E. Frye, J .; A. McClanahan, “Solar Thermal Propulsion Transfer Stage for the First Pluto Mission,” AAAA-93-2601, 29th Joint Propulsion Conference & Ex93.
[Non-Patent Document 2] David Liczodijewski, Costas Cassapakis, "Inflatable Power Antenna Technology," AIAA-99-1074, 1999.
[Non-Patent Document 3] Yasuharu Sakashita, Hironori Sahara, Morio Shimizu, Yoshihiro Nakamura, “Prototype of ultra-light condenser mirror in solar thermal propulsion system,” 43rd Space Science and Technology Union Lecture, 2000.
[Non-patent document 4] Yasuhiro Matsui, Hironori Sahara, Morio Shimizu, Yoshihiro Nakamura, “Solar Thermal Propulsion System for Ultra-Small Satellites-Ultralight Solar Condenser,” 2001 Space Transportation Symposium, 2002.
[0005]
[Problems to be solved by the invention]
In order to increase the efficiency of the large area electromagnetic wave focusing device, the present inventor excludes the above-described method of sharing the focal point, and directs a plurality of reflecting mirrors in the same direction without matching the focal point, thereby achieving a high spatial density. The idea was to develop a large-area electromagnetic wave focusing device that can be integrated and mounted on the surface. When considering a solar collector mirror as a large area electromagnetic wave focusing device that is integrated and mounted at a high spatial density, it is important to meet this demand for higher efficiency because sunlight has a low energy density. Furthermore, when this method is adopted, it is necessary to disperse and install the same number of transmission / reception devices as the number of reflecting mirrors as a constituent member, but this is more than the adoption of a single special large-sized transmission / reception device. It is a natural requirement to be inexpensive and highly reliable. In addition, when this apparatus is used for space, it is particularly strongly required to be integrated and mounted with a high space density and ultralight weight in order to reduce launch costs.
[0006]
In this method, it is necessary to provide a mechanism that controls the reflector so that it is directed in a specific direction (for example, the sun). A structure having sufficient rigidity is required to be used in a place where gravitational acceleration is applied on the ground. For this reason, an increase in the weight of the reflecting mirror and its support structure results in an increase in the weight of the entire structure on which the reflector is mounted, and an increase in the size and weight of the drive control mechanism also causes a problem of higher costs. It will be. Therefore, although it is not as for space use as for space use, high space density integration / mounting and weight reduction are problems to be solved.
[0007]
The object of the present invention is to integrate in a high space density and ultra-light weight on the premise that the required performance and reliability are satisfied in an integrated large-scale structure corresponding to these requirements, that is, a large area requirement. An object of the present invention is to provide an electromagnetic wave focusing device that can be implemented and can meet the demand of lower cost than the conventional focus sharing type employing one special large-sized transmission / reception device.
[0008]
[Means for Solving the Problems]
In order to solve the above problems, in the electromagnetic wave focusing apparatus of the present invention, a plurality of reflecting mirrors that are part of a rotating paraboloid or a curved surface that imitates the rotating paraboloid are integrated and mounted at a high spatial density. Adopt the method. For this purpose, an element support structure that supports each reflector individually is used as a basic unit, and all reflectors are collectively supported to form an overall support structure, and a certain number (not necessarily a fixed number) of reflections. A group support structure that supports the mirrors collectively is combined with another group structure or element support structure to form an overall support structure. In addition, a fluid loop member such as a heat pipe is employed in a holding portion for holding a member such as a wave transmitting / receiving device installed at each focal position to increase the heat exchange rate of the device.
[0009]
As a method for supporting the reflecting mirror for this purpose, a method of holding the outer periphery of the reflecting mirror is employed. Compared to the method of holding the back surface of the central part of the reflector, the space required for the support structure in the reflector axis direction is significantly smaller, and the connecting part with the adjacent support structure is far away from the holding part. There are advantages such as being short, and that the distortion of the shape of the reflecting mirror that can be caused by holding the reflecting mirror is small around the center of the reflecting mirror, which is the most important part.
As the shape of the outer peripheral part of the reflecting mirror suitable for such an element supporting structure, the outer shape of the reflecting mirror cut by a plane (ellipse or similar) is used as an outer shape so that the element supporting structure can be punched from a flat plate. It becomes the same plane shape, and manufacture of the support structure for individual, a group, or a total reflection mirror becomes easy. In particular, the element support structure and the group support structure require connection with other support structures, but this is also easy.
[0010]
In the above element support structure and group support structure, when the outer peripheries forming a circular shape are connected, a geometric gap is inevitably generated between the circular shapes of each other. What is the highest spatial density for high spatial density mounting? It will be easily understood that this is not possible. Since this is a matter that occurs between adjacent element support structures, the same is true when any form is adopted in the overall support structure that supports all the reflecting mirrors. In order to solve this problem, the present invention has conceived that the shape of the outer periphery of the reflector is a shape that can be connected to each other without a gap. That is, as the projected shape from the axial direction, that is, a pattern that is completely filled with the same pattern elements in the two-dimensional plane is adopted. For example, a projection shape is selected from a regular triangle, a rectangle, a regular hexagon, or a similar shape, and a support structure corresponding to the shape is adopted. In this case, the width of the support structure (the distance between the outer periphery and the inner periphery) can be minimized, and there can be no gap between the element support structures, so that the highest spatial density mounting can be realized. Further, in this case, the connection with the adjacent support structure can be performed at all the outer peripheral positions, resulting in a firm support structure. However, in this case, the support structure is not the same structure as punching from the flat plate described above, and only the vertex positions of the pointing structure coincide with each other in the axial direction, but the other points are curved curves in the axial direction. Therefore, the support structure takes a three-dimensional shape corresponding to the support structure, which is slightly complicated in production. However, if the shape to be adopted is decided, all the element support structures can be covered with the same parts, so that it is not a burden.
[0011]
Next, the weight reduction technique in the present invention will be described. First, by using a metal thin film or a polymer thin film deposited with aluminum or silver as a material for forming the reflecting mirror, the super-light weight of the reflecting mirror was achieved. Non-patent document 3 and non-patent document 4 describe techniques for reducing the weight of a reflecting mirror. After processing a film-like polymer material into a paraboloidal shape, an aluminum thin film is deposited to form a reflecting mirror. Technology to do is shown. However, in order to achieve the highest spatial density aiming at the present invention, the conventional circular outer peripheral shape is not sufficient, and the projection shape in the axial direction as described above needs to adopt a special shape such as a regular hexagon. .
[0012]
Also, in order to realize a total ultra-light weight as a large area electromagnetic wave focusing device, not only the weight of the reflector material but also the element support structure, group support structure, overall support structure material reflector is driven in the desired direction All the structural members such as the mechanism to be controlled, the member disposed at the focal position, and the holding mechanism thereof are targeted for weight reduction. In the case of the present invention, a large number of reflecting mirrors are used to cover a large area, but by adopting the above configuration as the material of the reflecting mirrors, the load load becomes extremely small, so the support structure that supports it also drives it. The control mechanism can also be realized with a lightweight material, and the total weight can be significantly reduced. There is no need for heavy bolts and nuts to connect the support structures. Light weight and simple coupling such as simple "protrusions" used in plastic models and the corresponding "holes" for elastic fitting. Means can be applied. This overall ultra light weight is a great advantage not only for space use but also for ground use in terms of energy saving, resource saving and cost reduction.
[0013]
With regard to the members (parts / devices) installed at the respective focal positions of the reflecting mirrors, particularly for solar condensing, high-performance exhaust heat is required. Therefore, in the present invention, a fluid loop member such as a heat pipe can be used for the supporting structure of the holding structure for holding these members, and a high heat exhaust performance can be provided with a high space density and lightweight structure. As a holding method, in the case of using a single column aligned with the rotational symmetry axis, the column is hidden by the shadow of the component / device to be held, so that the effective area of the solar incident mirror itself does not decrease. On the other hand, in the case of a method in which the support is installed obliquely about the axis of rotational symmetry from the support structure around the reflector, the use of a thin plate-like support makes it possible to minimize the area of sunlight shadow that it creates. it can.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
The electromagnetic wave focusing apparatus of the present invention will be described with reference to the drawings. The shape of the reflecting mirror in the present invention is shown in FIG. 1A. When the rotary paraboloid is cut along a plane perpendicular to the axis 2, the axisymmetric rotary paraboloid reflector 1 is formed, and a circular cutting line appears there, which becomes the outer peripheral edge 3 of the reflector 1. As an element support structure for individually supporting the reflecting mirror 1, a circular element support structure 4 for holding the outer peripheral edge 3 in a ring shape as shown in FIG. 1B can be adopted. The inner periphery 5 of the circular element support structure 4 coincides with the outer periphery 3 of the reflecting mirror 1 shown in FIG. 1A, and the reflecting mirror 1 is fixed by bonding or the like. When a plurality of reflecting mirrors 1 are integrated and mounted, the circular element support structure 4 is connected at a position where the circular outer periphery support structure 6 contacts each other. By this method, a large number of reflecting mirrors can be integrated and mounted on a planar circular element support structure. This is one form of an integrated large support structure that meets the large area requirements of the present invention.
[0015]
Since the circular element support structure 4 has a circular outer periphery, a gap 7 is inevitably formed between the element support structures when they are connected to each other, and the accumulation at the highest spatial density is not achieved. Then, the form which made the outer side shape 6 of the element support structure 4 into a regular hexagon as shown in FIG. 1C as a shape which does not make a clearance gap was recalled. In this embodiment, high spatial density without gaps 7 is achieved by connecting the element support structures 4 to each other, but the inner shape 5 of the element support structure 4 that holds the outer peripheral edge 3 of the reflecting mirror 1 is circular. A considerable space is left between the outer shape 6 which is a square and the inner shape 5 which is a circle, which is not used as a reflecting mirror. Therefore, in the present invention, in order to achieve the highest spatial density, it has been conceived that the outer peripheral edge 8 of the reflecting mirror 1 is also cut into a regular hexagon so that the inner shape 5 of the element support structure 4 is also a regular hexagon. In other words, as shown in FIG. 1D, the element support structure 4 has a regular hexagonal shape for both the outer shape 6 and the inner shape 5, so that the width is only required for securing rigidity, fixing the reflector, and connecting the element support structures to each other. The area ratio of the element support structure that is a member other than the reflecting mirror can be minimized. That is, high spatial density integration is possible to the limit. In FIG. 1E, the difference between the inner shape 5 and the outer shape 6 of the regular hexagonal support structure 4 is disregarded and indicated by one thick line, and the honeycomb structure of this support structure is shown in an integrated state.
[0016]
However, when the element support structure 4 is a regular hexagon, the element support structure 4 is not a planar structure. This is because the inner shape of the element support structure 4 is in a relationship of holding the cut peripheral edge 8 of the reflecting mirror 1, and its shape 5 is the same as the cut peripheral edge 8. Since the cut peripheral edge 8 of the reflecting mirror 1 is a shape in which the projected shape from the axial direction is a regular hexagon, the shape of the cut peripheral edge 8 is that the six vertices have the same axial position as shown in FIG. 1F. Between the adjacent vertices of the object to be taken is a shape cut by an arcuate curve. Therefore, the shape of the element support structure 4 that holds this is not on a plane but takes a three-dimensional shape having an axial displacement component. However, since the positional relationship between adjacent element support structures is the same at each vertex and each side, the adjacent element support structures are in contact with each other at all outer positions. Connection is possible.
[0017]
In the above description, a regular hexagon is adopted as the shape of the outer periphery of the reflecting mirror and the inner periphery of the support structure. However, the above advantages are not limited to the regular hexagon. As the shape of the cut peripheral edge 8 of the reflecting mirror 1, the projected shape from the axial direction is a regular hexagon, a regular triangle shown in FIG. 2A, a rectangle shown in FIG. The same pattern shape which becomes a continuous shape can be selected. FIG. 3 shows an example of the same pattern shape that is a dense continuous shape in plan view. The A unit pattern is a regular triangle, the B unit pattern is a square, the C unit pattern is a regular hexagon, and the D unit pattern is a regular cross. By adopting a form in which the element support structure 4 supports the cut peripheral edge 8, the effective area of the reflecting mirror can be increased to the limit and continuous contact with the adjacent support member can be realized. However, it does not have to be a regular polygon. For example, in the case of the regular pentagon shown in FIG. 2C, this method cannot be applied because it cannot be closely connected on a plane.
[0018]
In the above, the connection between the element support structure for one reflector and the adjacent element support structures, which is the basic unit of the large area electromagnetic wave focusing apparatus of the present invention, has been described. Next, the large area electromagnetic wave focusing of the present invention will be described. The connection of the element support structures of a number of reflecting mirrors constituting the apparatus will be described. As a basic form, there is an overall support structure that integrally supports all the necessary number of reflectors. In this configuration, it is not necessary to place a mirror widely in the axial position, compared to a conventional split mirror constructed by dividing a single large mirror into a number of parts, and a structure in which the mirror is arranged and coupled almost two-dimensionally. Therefore, the transfer and installation work becomes extremely easy and the work load is drastically reduced. And since it is manufactured as a whole structure, there is no need for on-site assembly work, which is advantageous in terms of cost. On the other hand, since it is a large area structure, it is troublesome to transfer and store it. It is difficult to take action when division is necessary.
[0019]
As a different form of the present invention, a form in which a group structure is adopted in order to collectively support a group of a plurality of reflecting mirrors is presented. In this case, set the group structure to an appropriate size that does not hinder handling, transfer, or storage for the time being, and then transfer it to the installation location and then combine multiple group structures or add an element support structure. You can take steps to build. This form is very advantageous for transportation and storage because it can handle a group structure that can be formed in a nearly two-dimensional shape by stacking and handling it. In particular, when transporting to space, a folding / unfolding structure can be easily made and effective.
[0020]
The electromagnetic wave focusing device of the present invention employs a reflector made of an ultralight material in order to reduce the weight. Specifically, it uses a metal or polymer thin film with a highly reflective coating such as silver or aluminum as the reflector, which makes it possible to use conventional glass reflectors, acrylic Fresnel lenses, and Fresnel. Compared to reflectors, it is possible to reduce the weight by two orders of magnitude. This reduction in the weight of the reflecting mirror is not only that effect, but it is directly connected to the reduction in rigidity and the weight of the supporting structure that supports the reflecting mirror, so that the reflecting mirror and the supporting structure can be reduced in weight. Resin material with a thickness of 1 mm or less can be used as the material for the support structure, and for the connection, elastic fitting with a simple “projection” and a corresponding “hole” employed in plastic models, adhesives, etc. The connection method using thin layers can be adopted, and a wide range of design options that are convenient and lightweight can be selected.
Furthermore, the ultra-light weight of the reflector and the element support structure means that the drive control mechanism for directing the reflector in the direction of the sun and the direction of radio wave propagation may be for low-load driving, which also reduces weight and weight. It brings cost. In the present invention, it is possible to reduce the weight of many of these constituent members, so that an ultra-lightening effect is produced. In outer space that is not affected by wind and rain, it is only necessary that the mechanical strength can maintain its own structure. Therefore, an electromagnetic wave focusing device with a large area can be implemented as it is in this ultralight form. In addition, the ground device can be implemented in substantially the same form by being housed in the casing.
[0021]
As a method of holding the member (part / device) 11 installed at the focal point of the reflecting mirror 1, as shown in FIG. 3, a support of a fluid loop member such as a heat pipe is used as a support to achieve a high space density and lightweight structure. High exhaust heat performance. In the case of a single shaft column 12 aligned with the rotational symmetry axis, the column is hidden by the shadow of the holding member when the reflecting mirror faces the sun, so that itself reduces the sun incident mirror. Or, in the case of the method of installing the oblique column 13 on the rotational symmetry axis 2 from the support structure 4 around the reflecting mirror, particularly using a thin plate-shaped column, the area of the shadow of the sunlight that it creates is reduced to the minimum necessary. Can be made. By using a fluid loop member for the holding mechanism and the support mechanism, the heat exchange efficiency of the present system can be increased. By adopting this configuration, the present system can be installed and used even in an overheated or overcooled situation.
[0022]
【The invention's effect】
The electromagnetic wave focusing apparatus of the present invention includes a plurality of reflecting mirrors having a shape that is a part of a rotating paraboloid or a curved surface simulating the rotating paraboloid, a supporting member that supports an outer peripheral portion of the reflecting mirror, and each reflection It consists of a transmission / reception device for each mirror, and is integrated and mounted at a high spatial density by combining the plurality of reflecting mirrors in close proximity, so that the members placed at the focal position are dispersedly arranged for each reflecting mirror Therefore, even if some of them fail, the performance is reduced by that amount, and the function of the entire system is not lost. Moreover, since small-sized transmission / reception members are mass-produced and used, low cost and high reliability can be expected. Moreover, since it is not necessary to form one huge lens, there is a degree of freedom in the positional relationship with other reflecting mirrors, and it can be assembled into an appropriate structure depending on the topography of the installation location and other structures.
[0023]
The electromagnetic wave focusing device of the present invention in which a plurality of reflecting mirrors are closely coupled to each other so that the supporting members of the adjacent reflecting mirrors are in contact with each other to form an overall support structure has a simple coupling mechanism. Spatial density can be increased.
The entire support structure adopts a group support structure that collectively supports the reflectors as a certain number of groups, and the group support structures are connected to each other or to each individual reflector support structure. The electromagnetic wave focusing device of the present invention, which is a device, can be handled as a group at the time of transportation and storage, and is therefore highly convenient. In addition, a folding / unfolding structure can be adopted for each group, which is convenient for transportation and particularly suitable for space use.
[0024]
The electromagnetic wave focusing apparatus according to the present invention adopts a configuration in which the support member is supported with the shape of the reflecting mirror cut in a plane as the outer periphery, and the overall support structure has the same planar shape as punching from a flat plate, so that the spatial density is increased. In addition, the element support structures and the group structures can be easily combined. Further, a shape in which the projection shape from the axial direction is a shape that is a dense continuous shape such as a regular triangle, a rectangle, a regular hexagon, or a cross shape as the outer shape of the reflecting mirror, and the support member supports the outer periphery of the shape is selected. The adopted electromagnetic wave focusing device increases the effective area of the reflector to the limit and realizes continuous contact with the adjacent support member.
[0025]
The electromagnetic wave focusing device of the present invention using a metal or polymer thin film coated with a highly reflective material such as aluminum or silver as the reflecting surface material of the reflecting mirror realized an ultralight reflecting mirror. Furthermore, the provision of this ultralight reflector enables the support structure and the drive control mechanism to be lightened, resulting in an ultralight weight of the entire system.
In addition, the electromagnetic wave focusing device of the present invention adopting a form in which the entire support structure designed to reduce the weight is installed and accommodated with a casing can be provided with practicality as a facility for ground use.
[0026]
The member that holds the device that collects energy at the focal point of the reflecting mirror is arranged on a rotationally symmetric axis or is made into a thin plate shape. Is expensive.
In addition, the electromagnetic wave focusing device of the present invention using a fluid loop member such as a heat pipe as a holding member for each reflecting mirror that holds a device for processing electromagnetic waves or the like at the focal point of the reflecting mirror should have a high heat exchange function. As a device for concentrating sunlight, it has high exhaust heat performance and can be used for high-magnification transmission / reception. Even with other electromagnetic wave focusing devices, this system can be installed and used in overheated or undercooled conditions. Make it possible.
[Brief description of the drawings]
FIG. 1 is a perspective view of an axisymmetric rotating paraboloid, B is a circular element support structure for supporting individual reflecting mirrors, and C is a regular outer shape. A plan view of a square element support structure, D is a plan view of an element support structure in which the outer peripheral shape and the inner peripheral shape are regular hexagons, E is a plan view in which the element support structures of D are two-dimensionally connected and arranged, and F is It is a perspective view of the reflective mirror from which a projection shape becomes a regular hexagon.
FIGS. 2A and 2B are perspective views, a lower view is a plan view, A is a shape of an axial projection figure formed as a regular triangle, B is a square shape, and C is a regular pentagonal shape of the outer periphery of the reflecting mirror.
FIG. 3 is a diagram showing a form in which element support structures are densely arranged two-dimensionally. A is an example of a regular triangle, B is a square, C is a regular hexagon, and D is a regular cross.
FIG. 4 is a perspective view showing a form in which a member arranged at the focal point of the reflecting mirror of the electromagnetic wave focusing apparatus of the present invention is held by a support column.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Rotating paraboloid reflector 7 Gap between element support structures 2 Rotating axis 8 Projection cut periphery 3 of reflector Mirror cutting line 11 Focal arrangement member 4 Element support structure 12 Axis column 5 Element support structure inner circumference 13 Diagonal column 6 Element support structure outer periphery

Claims (9)

A plurality of reflecting mirrors that do not share a focal point having a shape that is a part of a rotating paraboloid or a curved surface that imitates it, a support member that supports the outer peripheral portion of the reflecting mirror, and a transmission / reception device for each reflecting mirror An electromagnetic wave focusing device characterized in that the plurality of reflecting mirrors are combined and mounted in a close form so as to be integrated and mounted at a high spatial density. 2. The electromagnetic wave focusing device according to claim 1, wherein the plurality of reflecting mirrors are closely coupled to each other so that the supporting members of the adjacent reflecting mirrors are in contact with each other to form an overall support structure. The entire support structure adopts a group support structure that collectively supports the reflectors as a certain number of groups, and the group support structures are connected to each other or to each individual reflector support structure. The electromagnetic wave focusing device according to claim 2, which is a thing. The whole support structure becomes a plane shape similar to punching from a flat plate by adopting a form in which the support member supports the outer periphery of a shape obtained by cutting the reflector in a plane. The electromagnetic wave focusing device according to claim 1. As the external shape of the reflecting mirror, select a shape in which the projected shape from the axial direction is a planar continuous dense shape such as a regular triangle, a rectangle, a regular hexagon, or a cross shape, and the support member supports the outer periphery thereof. 4. The electromagnetic wave focusing device according to claim 1, wherein the effective area of the reflector is increased to the limit and continuous contact with the adjacent support member is realized. 6. An ultralight reflector is realized by using a metal or polymer thin film coated with a highly reflective material such as aluminum or silver as a reflecting surface material of the reflecting mirror. The electromagnetic wave focusing apparatus in any one of. The electromagnetic wave focusing device according to claim 6, wherein the electromagnetic wave focusing device according to claim 6 is provided with practicality as a facility for ground by installing a casing surrounding the entire support structure. 8. The holding member for holding a member arranged at the focal point of the reflecting mirror is arranged on a rotationally symmetric axis or is formed into a thin plate shape so that no shadow is formed on the reflecting surface. An electromagnetic wave focusing device, which is the solar light collecting device described. 9. A high heat exchanging function is provided by using a fluid loop member as a holding member for each reflecting mirror that holds a device for processing electromagnetic waves or the like at the focal point of the reflecting mirror. The electromagnetic wave focusing apparatus as described.

Images