JP2005166456A - Light collecting method and device for enhancing lighting effects - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a light collecting method and a light collecting device effectively utilizing a space not interfering with the movement of persons as a passage of light, irradiating light to optional place from optional direction, restraining halation caused by the light collection through a window, realizing an effective light collection by an additional installation of a simple device/equipment, and reconciling the light collection and interception of a line of sight from outdoors. <P>SOLUTION: The above functions of the light collecting device are obtained by setting optional passages of light by using a collective reflection plate light collecting device 112 for making light reflect in a space of the building in an optional angle by a blind or the like, a light collecting device 114 with low light transmissivity, a light collecting device 115 for guiding the light in a space in need of illumination, and light collecting devices 116, 117 for dividing and dispersing the light by the combination of reflection and transmission, and by the above, a power for illumination and air-conditioning is reduced. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a daylighting method and a daylighting fixture using light incident from a window or an opening of a building as illumination illuminance.

  Conventionally, in daylighting from a window provided on a vertical wall surface, the light incident from the window surface is irradiated obliquely from the upper side to the lower side, so there is a large difference between the illuminance on the window side and the illuminance on the back side of the room, When the desk surface is a glossy surface or the like, the back surface of the room is often irradiated with reflected light from below, and the halation of the floor surface often becomes dazzling.

  Conventionally, ceiling windows and light ducts have been used when trying to obtain natural light irradiation from above at a position far from indoor windows. Even a major renovation was difficult.

  Conventionally, when trying to obtain daylight from the window surface while making the room invisible from the outside, a window surface made of a material such as frosted glass, or a plurality of irregular reflection plates arranged outside or inside the window, etc. There was no way to fix the diffuse reflection state and easily switch the outdoor landscape to a state where it can be seen from the room.

  In recent years, when using natural light from above at a position far from indoor windows, methods using optical ducts and optical cables have been proposed and implemented in part. Since there is a need to lay ducts and cables in the building, space for that is secured, so the design elements for the building structure increase and the adjustment items with other facilities increase. It was often a restraining condition for other building elements.

  In addition to solving the problems of the prior art shown in 0002, it is an object to effectively use a space that has no light shield and does not interfere with human activities as a light path.

  In addition to solving the problems of the prior art shown in 0002 and 0003, it is an object to irradiate light from an arbitrary direction to an arbitrary place in a room even when lighting from a normal window.

  An object of the present invention is to solve the problems of the prior art shown in 0002 and 0004, and to realize a state where the room cannot be seen from the outside and a state where the outdoor scenery can be seen from the room at the same time or with easy switching.

  It is an object of the present invention to solve the problems of the prior art shown in 0002, 0003, and 0005, and to realize effective daylighting by simple installation of additional equipment and facilities.

Hereinafter, reflection, transmission, and diffusion of light are defined as follows.
(1) Regular reflection surface or regular reflection material: A surface or material that is mostly regular reflection with respect to incidence and has a small ratio of transmission and diffuse reflection.
(2) Incomplete diffuse reflection surface or incomplete diffuse reflection material: A surface or material that reflects mostly in the middle region between regular reflection and complete diffuse reflection with respect to incidence.
(3) Diffuse reflective surface or diffuse reflective material: A surface or material that reflects almost completely diffusely reflecting incident light.
(4) Diffusing surface or diffusing material: A surface or material that is mostly diffusely reflected and diffusely transmitted with respect to the incidence, and the ratio is the same. (If there is a reflection surface on the back side where light enters, it becomes a diffuse reflection surface. If the material wraps the light source, it becomes a diffuse transmission surface.)
(5) Diffuse transmission surface or diffuse transmission material: A surface or material that reflects near diffuse diffusion with respect to incidence.
(6) Transmitting surface or transmitting material: A surface or material that is mostly specularly transmitted with respect to incidence and has a small ratio of reflection and diffuse transmission.
(7) Reflection / transmission surface or reflection / transmission material: A surface or material that spectrally separates the intermediate region between the regular reflection and the regular transmission mostly with respect to the incident.
(8) Reflection / transmission diffusion surface or reflection / transmission diffusion material: A surface or material that performs spectral analysis of an intermediate region between incomplete diffuse reflection and incomplete diffuse transmission with respect to incidence.

  The outdoor light source light is irradiated into the room obliquely downward from above. In order to solve the problems shown in 0006, 0007, and 0009 and to transmit this to a place where illumination is required, the invention is first reflected by a primary reflecting means arranged in a window space or overhead space. The primary reflected light is reflected by introduction illumination means that is disposed in the window space or overhead space and is introduced into a space that requires illumination. This is a method of transmitting outdoor light source light incident on a room to an arbitrary place by arbitrarily setting the reflection angles of the primary reflecting means and the introduction lighting means.

  In order to solve the problems shown in 0006, 0007, 0008, and 0009 and to transmit the outdoor light source light incident on the room to a place where illumination is necessary, the invention shown in claim 2 is first arranged in the window space or overhead space. Reflected by the primary reflecting means. The primary reflected light is reflected and collected by the light collecting means disposed in the window space or overhead space. The concentrated light is reflected by the introduction illumination means that is disposed in the window space or overhead space and is introduced into a space that requires illumination. This is a method of transmitting outdoor light source light entering a room to an arbitrary place by arbitrarily setting the reflection angles of the primary reflecting means, the condensing means, and the introducing illumination means.

  The invention described in claim 3 solves the problems shown in 0006, 0007, and 0009, and a part of the outdoor light source light reflected by the primary reflecting means, the condensing means, or the introducing illumination means, and a part of the light in one direction. This is a method of dividing light by reflecting or transmitting toward a place where illumination is necessary and reflecting or transmitting a part of the remaining light amount to the other by a spectral illumination means that reflects or transmits the light.

  The invention described in claim 4 solves the problem shown in 0006 when outdoor light source light is used as daylighting illumination, and the outdoor light source light incident from the window or the primary reflected light or concentrated light reflected from the light is applied to a person in the room. This is a method of reducing the excessive luminance to be given by a luminance suppressing means using a reflection / transmission surface that provides daylighting as an optical path in which most of the light does not normally enter the human eye.

  In the invention shown in claim 5, as the primary reflecting means used in the method shown in 0011 and 0012, a plurality of reflecting plates made up of a regular reflecting surface, an incomplete diffuse reflecting surface or a diffuse reflecting surface are arranged on a window surface or an opening surface. And a collective reflector lighting device having a support for maintaining the arrangement and angle of the reflector.

  According to the sixth aspect of the present invention, as the light collecting means used in the method shown in 0012, it is disposed indoors on the indoor side of the primary reflection means, and is a reflection screen or reflection made of a regular reflection surface, an incomplete diffuse reflection surface, or a diffuse reflection surface. It is a light collecting and lighting device having a support for reflecting and collecting outdoor light source light or primary reflected light as a plate (hereinafter referred to as “reflective curtain etc.”) and maintaining the arrangement and angle of the reflective curtain.

  In the invention shown in claim 7, as the luminance suppressing means used in the method shown in 0014, a reflection curtain or the like which is disposed indoors of the primary reflection means in the room and has a reflection / transmission surface or a reflection / transmission diffusion surface. Is a low transmission concentrating daylighting instrument having a support for maintaining the arrangement and angle. Reflective curtains, etc., serve both as primary reflection means and brightness suppression means, and reflect and collect part of the outdoor light source light or part of the primary reflected light, while at the same time transmitting the remaining amount of light, resulting in glare It is intended to suppress the appearance of the outdoor scene.

  In the invention shown in claim 8, as the introductory illumination means used in the method shown in 0011 and 0012, light is reflected in a direction far from the window of the indoor space as a reflection plate comprising a regular reflection surface, an incomplete diffuse reflection surface or a complete diffuse reflection surface. This is an introduction daylighting instrument that has a support for reflecting at an arbitrary angle and maintaining the arrangement and angle of the reflection curtain plate.

  The invention shown in claim 9 is a spectral illuminating means used in the method shown in 0013, which is a transmission / reflection plate having a reflection / transmission surface or a regular reflection surface, or a combination of a transmission / reflection plate made of a diffuse transmission material. A spectroscope that has a support for maintaining these arrangements and angles, irradiates a part of the light where it needs to be illuminated, and reflects or transmits the remaining light in another direction for another daylighting application. It is a lighting fixture.

  Regarding artificial lighting, the amount of electricity used for lighting is energy-saving, and in the summer, the amount of heat generated by the lighting fixture is energy-saving.

  Energy saving is achieved with respect to cooling and heating by using the window surface pasted inclined reflector block and the curved reflection introducing plate as a duct.

  Outdoor light source light can be introduced indoors without worrying about seeing the room from the neighborhood, which helps to protect privacy.

  FIG. 1 is a conceptual diagram showing a triangular graph in order to express the optical properties of a material by the ratio of reflection, transmission, and diffusion. In this figure, it is considered that the amount of light absorbed by the material is excluded, and a diffuse transmission material that does not reflect at all is not realistic, and the region is filled in. Examples of optical properties of materials suitable for the present invention are shown as dots in the figure.

  The outdoor light source light described below indicates sky irradiation unless otherwise specified. An example shown in FIG. 2 will be described as a daylighting method according to claims 1 and 3. A light-shielding blind-shaped collective reflector daylighting fixture 102, which is a primary reflecting means, is installed inside the daylighting window 101, and an introductory illumination means having a reflecting mirror surface at a position where the primary reflected light 2 reflected by the outdoor light source light 1 reaches the ceiling. An introduction daylighting instrument 105 is arranged. A spectral lighting device 106 which is a spectral illumination means for receiving and diffusing and transmitting the introduced light 4 is installed for indoor illumination. As examples of the materials to be used, an incomplete diffuse reflection material (point b1 in FIG. 1) close to regular reflection is used for the collective reflector daylighting instrument 102 and the introduction daylighting instrument 105, and a diffuse transmission material (in FIG. 1) is used for the spectral daylighting instrument 106. Assume that point e1) is used. As a result, soft natural light from above is easily provided even in the room.

  An example shown in FIG. 3 will be described as a daylighting method according to claims 2, 3, and 4. A collective reflector daylighting instrument 112, which is a primary reflecting means, is installed on the interior side of the daylighting window 111, and the primary reflected light 2 from which the outdoor light source light 1 is reflected upward is installed on the interior back side of the primary reflecting means. It is assumed that the light is collected and reflected upward by a low-transmitting light collecting and lighting device 114, which is a curtain-shaped light collecting means, and a part of the amount of light is transmitted to give soft light from the curtain surface to the room. On the other hand, the concentrated light 3 condensed and reflected above the window is reflected by the introduction lighting instrument 115 having a reflecting mirror surface so that the light path is directly below the ceiling, and is provided on the ceiling near the center of the room or on the ceiling opposite the window. The spectral lighting devices 116 and 117 serving as spectral illumination means are used for indoor illumination. As an example of the material to be used, a specular reflection material (point a1 in FIG. 1) is used for the collective reflector daylighting instrument 112, a reflection / transmission material (point g1 in FIG. 1) is used for the low transmission condensing daylighting instrument 114, and an introduction daylighting instrument. 115 is an incomplete diffuse reflection material (point b1 in FIG. 1) close to regular reflection, and the spectroscope 116a of the spectral daylighting instrument 116 in the center of the room is a reflection / transmission material (point in FIG. 1) having the same amount of reflection and transmission. g2), a diffuse transmission material (point e1 in FIG. 1) is used for the diffuser 116b, and a diffuse reflection material (point c1 in FIG. 1) is used for the spectroscopic lighting device 117 on the side opposite to the window. As a result, soft natural light from obliquely above can be easily provided even indoors, and more compact and more systematic daylighting can be achieved than in the example shown in FIG.

  FIG. 4 shows an example of a combination of a structure that specifically shows the primary reflecting means, the light collecting means / brightness suppressing means, and the introducing illumination means as the lighting device according to the fifth, sixth, seventh, and eighth aspects. As a primary reflecting means, horizontally long rectangular mirror surface blades 203 are arranged vertically so as to support the middle points of both short sides of each blade so that each blade rotates around an axis connecting the two middle points. Use lighting equipment. A blind support 301 is provided on the upper part of the daylighting blind to suspend and support all the blades and to fix the upper part of the window. The blind support material 301 is combined with the light collecting and lighting instrument support material 311 and the introduction lighting instrument support material 321 and fixed to the upper part of the window. The concentrating lighting device 123 is coupled to the blind support material 301 at the upper part of the window, and is slanted from the concentrating lighting device support material 311 that protrudes to the inside of the room. A reflective curtain having a concave concave curved surface on the window side is used. In addition, by using a material that transmits a part of the light amount as the reflective curtain, it is possible to provide a low-transmitting light collecting and lighting device 134 that can distinguish outdoor scenery. It is assumed that this curtain can be wound up by a shaft rod 311a delivered to the light collecting instrument support 311. The introductory illumination means is fixed in the space under the ceiling above the window by the introductory lighting fixture support member 321 combined with the blind support member 301 or the condensing lighting fixture support member 311 and reflects the concentrated light in the horizontal direction. Reflective material with

  FIG. 5 shows an example of a daylighting instrument that specifically explains the spectral illumination means. A spectroscope 126a made of a reflective and transmissive material (point g1 in FIG. 1) fixedly supported on the ceiling and having a set ratio of reflection and transmission so that the inclination angle is variable on the optical path so that the light is reflected downward. The diffuser 126b, which is a diffuse transmission material (point e1 in FIG. 1), is fixed by the diffuser support material 332 so that the spectroscope support material 331 supports uniaxial rotation and the downward reflected light becomes illumination light around the spot. It shall be supported.

FIG. 6 shows a light reflection state plotted according to the following assumptions in the combination of the lighting fixtures according to the present invention.
(1) The blade shape of the blind is flat and the thickness can be ignored.
(2) The blade installation interval is 90% of the blade width.
(3) It is assumed that the outdoor light source light 1 is incident at 45 degrees as a representative incident angle of the sky irradiation, and in order to emit the primary reflected light 2 at 45 degrees upward, the inclination of the blades is set to a horizontal posture of 0 degrees.
(4) It is assumed that the angle of the reflecting surface gradually changes from 67.5 degrees below the light collecting and lighting fixture 133 to 90 degrees above the light so that it is reflected upward by the light collecting and reflecting means. .
(5) The introducing reflection means has a gentle curved surface so as to reflect the concentrated light 3 horizontally in the direction away from the window.
By continuously changing the inclination of the light collecting and lighting device 133 from the lower 67.5 degrees to the upper 90 degrees, the light is focused without focusing. The outdoor light source light 1 is incident on the blade 211 in a horizontal posture at 45 degrees. The primary reflected light 2 which is this reflection is reflected upward by the condensing lighting device 133, but is reflected vertically upward (90 degrees) with a regular reflection surface inclination of 67.5 degrees, and with a reflection of 45 degrees at an inclination of 90 degrees. Become. Actually, it is possible to make a state close to this by arranging the light collecting and lighting device 133 so as to be slanted with the top and bottom fixed. From this drawing, it can be seen that if the present invention is used, the outdoor light source light 1 can be transmitted from the window space to the overhead space and easily used as illumination by additionally installing a simple instrument. This concentrated light 3 can be made into a light beam that is aligned almost horizontally by the introduction lighting device 135 having a reflection curved surface. Regarding the response to the change in the incident angle of the outdoor light source light 1, only the blind angle can be adjusted so that the primary reflected light 2 is 45 degrees, and the same state can be maintained. Moreover, there is a change in the irradiating direction for direct sunlight instead of the sky irradiation, and the method of daylighting the introduction lighting device 133 as a cubic surface is effective.

FIG. 7 shows an explanatory diagram comparing lighting conditions for a method using a combination of daylighting instruments according to the present invention and a method using only a blind, and FIG. 8 shows a summary of the results of comparison calculation in a table. In addition, the main conditions used as the origin of calculation were assumed as follows.
(1) The size and arrangement of windows, the arrangement of illumination objects, and the like are the dimensions shown in FIG.
(2) The length in the y direction is sufficiently large so that the influence of the depth direction (assumed to be the y direction) in the figure is negligible.
(3) Assume that incident light has a luminous flux divergence of 30000 rlx as sky irradiation, and there is a loss of 10% by each lighting device.
(4) In FIG. 7A showing a method using only the blind, the incident light becomes 90% diffused light from the daylighting window 141 in the room and is reflected to the ceiling by the collective reflector lighting device 142 (blind). Shall.
(5) In FIG. 7A, it is assumed that irradiation on the ceiling has 40% absorption, 12% regular reflection, and 48% diffuse reflection.
(6) In FIG. 7A, the regular reflection from the ceiling is applied to the floor surface, and there are 80% absorption, 12% regular reflection, and 8% diffuse reflection.
(7) In FIG. 7A, it is assumed that the regular reflection from the floor surface is irradiated again on the ceiling and has 40% absorption, 12% regular reflection, and 48% diffuse reflection.
(8) In FIG. 7B showing the method according to the present invention, the incident light is transmitted 5% by the collective reflector lighting instrument 142 (blind), the condensing lighting instrument 144 and the introduction lighting instrument 146, and 60% specular reflection. 15% diffuse reflection.
(9) In FIG. 7 (b), the specular reflection of the introduced light is applied to the first spectral lighting instrument 143, 45% regular transmission, 5% diffuse transmission, and 4% regular reflection downward, 36% diffuse reflection is assumed.
(10) In FIG. 7 (b), the light that has been transmitted through the first spectral lighting instrument 146 is irradiated to the second spectral lighting instrument 147, 9% regular reflection downward, and 81% diffuse reflection. It shall be
According to this comparison, the illuminance of 400 lx or more (equivalent to a conference room, library room, etc.) can be obtained with both methods on a desk 5m away from the window (illumination target 15), but this is possible on a desk 7m away (lighting target 16). It was found that the method according to the invention can secure an illuminance of about 400 lx, whereas the method using only the blind can only provide an illuminance of about 100 lx (corresponding to a corridor, a toilet, etc.). The comparison of illuminance varies depending on the conditions, but the amount of light decreases sharply with the blind alone as it moves away from the window, whereas the method according to the present invention contemplates average daylighting that suppresses the influence of the distance from the window. I understand that I can do it. The above calculation is based on the assumption that the sky is irradiated, but when comparing the situation where direct sunlight is incident, if only the blinds are used, it is often shielded so that indoor people and desks are not directly irradiated. However, if the present invention is used, not only direct irradiation can be avoided, but also a large light source can be used for illumination.

  An example in which the present invention is used when direct sunlight enters from a ceiling window will be described with reference to FIG. Usually, sunlight incident from the ceiling window 151 is partially absorbed and diffusely reflected when concentrated on the wall surface or floor surface of the room. Apart from this, there is sky irradiation, which diffuses light from the entire surface of the ceiling window 151 and falls down into the room (FIG. 9A). On the other hand, in the method using the present invention, sunlight is transmitted directly to the introduction daylighting instrument 155 and the spectral daylighting instrument 156 provided at different positions on the ceiling by the primary reflecting instrument 152, so that direct sunlight is separated from the ceiling window 151. It can be converted into diffuse light illumination from the position. Applicable to factory buildings with large roofs as well as residences.

  As the primary reflecting means arranged at the window, FIG. 10 shows a lighting device that transmits light to the upper introducing illumination means as a plurality of L-shaped combinations of the reflecting plates 223 and 224 and the reflecting curtain 222. . The outdoor light source light 1 incident on the window obliquely from above is incident between the overlapping L-shaped reflectors, repeatedly reflected, and irradiated upward. By using the reflection plates 224 arranged vertically in the upper part as a diffuse reflection material, diffused light is transmitted to the introduction illumination means 165 provided above. Since the introduction illumination means 165 is also a diffuse reflection surface, soft light from above the window can be introduced into the room. In this method using the lighting device, a simple and compact installation is sufficient, but the loss of the light amount is larger than the methods 0021 and 0022.

  FIG. 11 shows an example in which a transparent block-type daylighting instrument 236 of an air-sealed window surface adhesion method, in which an inclined reflecting plate 235 is coupled as a primary reflecting means, is shown. It is assumed that the transparent block-type lighting device 236 has a predetermined size and is arranged and pasted on the window surface. The effect as a heat insulating material is also demonstrated with respect to the window surface where the ratio of the heat loss of air conditioning is large. The interior side can be decorated to create natural light chandeliers or stained glass.

  Application of the present invention makes it easy to use natural light indoors. For example, a natural light indirect spotlight can be obtained by using a diffuse reflection curved surface. Thereby, natural light can also be irradiated to an indoor houseplant. In addition, it is possible to project a rainbow on the ceiling by spectroscopy using a prism, or to perform variable color tone lighting by selecting the dispersed light with a slit. For windows that receive direct light, it is also possible to use sunlight as part of the interior, such as using a slit to calculate from the window orientation and projecting a sundial on the ceiling.

  By using the present invention and using artificial lighting instead of a collective switch as an individual switch or an automatic adjustment of illuminance, outdoor light source light can be utilized to the maximum extent for lighting in a room such as an office.

  By using the present invention, the outdoor light source light 1 can be introduced and irradiated indoors when the laundry 31 or the like is dried indoors. This is effective when it is desired not to touch the laundry 31 or the like, or when the outdoor light source light 1 is desired to be applied to the laundry 31 but the weather is expected to deteriorate during absence.

  On the premise that the present invention is used, the building structure itself is used as an interior lighting means with a reflection curved surface from the wall of the upper part of the indoor window to the ceiling, so that the outdoor light source light 1 is effectively used, such as an apartment house, an office, etc. (FIG. 12). In addition, the corner from the wall to the ceiling is easily affected by the temperature difference from the outside. Therefore, by providing an introductory daylighting device so that a sealed air layer 401 is formed in this portion, not only the daylighting lighting but also the indoor It can be expected to increase the overall heat insulation and reduce the energy used for air conditioning.

It is a conceptual diagram showing the optical property of material with the ratio of reflection, transmission, and diffusion. It is a three-dimensional room diagram showing an example of a daylighting illumination method using a blind-type collective reflector daylighting instrument, an introduction daylighting instrument, and a spectral daylighting instrument. It is an elevation view of a room showing an example of a daylighting illumination method using a blind-type collective reflector daylighting instrument, a low transmission condensing daylighting instrument, an introduction daylighting instrument, and a spectral daylighting instrument. It is an elevational view showing an example in which a blind-type collective reflector daylighting instrument, a condensing daylighting instrument, and an introduction daylighting instrument are combined and supported. It is an elevational view showing an example of a spectral daylighting instrument in which a reflection / transmission material and a diffuse transmission material are combined. FIG. 5 is an elevation view of an arrangement of fixtures in which a reflection of obtaining outdoor light source light as horizontal light in the vicinity of the ceiling is plotted by a combination of a blind-type collective reflector daylighting instrument, a reflective curtain-type concentrating daylighting instrument, and an introduction daylighting instrument. It is a three-dimensional view comparing the daylighting illumination method using only the blind and the daylighting illumination method combining the primary reflection means, the light collecting means, the introduction illumination means, and the spectral illumination means. It is the table | surface which showed the result of having compared the lighting illumination method using only a blind, and the lighting illumination method which combined the primary reflection means, the condensing means, the introductory illumination means, and the spectral illumination means. In the state where the direct sunlight is incident from the ceiling window, it is an elevation view showing an example comparing the case of only the ceiling window and the case of using the daylighting illumination method combining the primary reflection means, the introduction illumination means, and the spectral illumination means. is there. It is an elevation view which shows the usage example of the lighting fixture which used the some L-shaped reflection material as a primary reflection means. It is a perspective view which shows the example of the air-sealed window surface adhesion type lighting device which combined the reflecting material as a primary reflecting material. It is an elevational view showing an example of a daylighting method in which the introduction illumination means is a part of the building interior.

Explanation of symbols

1: Outdoor light source light
2: Primary reflected light
3: Concentrated light
4: Introduced light 11, 12, 13, 14, 15, 16, 18, 19, 20:
Illumination target 31: Laundry 101, 111, 121, 141, 161, 171, 181:
Daylighting window 151: Ceiling window 102, 112, 122, 132, 142, 182:
Collective reflector lighting instrument 152: primary reflector 123, 133, 183:
Concentrating daylight 114, 144:
Low-transmission light collecting and lighting instrument 105, 115, 125, 135, 145, 155, 165, 185:
Introductory lighting devices 106, 116, 117, 126, 146, 147, 156:
Spectral luminaires 116a, 126a:
Spectrometers 116b and 126b:
Diffuser 201, 211:
Feather 222: Reflective curtain 223, 224:
Reflector 235: Inclined reflector 236: Transparent block-type lighting fixture 301: Blind support material 311: Concentration lighting fixture support material 311a: Shaft bar 321: Introducing lighting fixture support material 331: Spectroscope support material 332: Diffuser support material 401: Sealed air layer

Claims (9)

Primary reflection means for reflecting outdoor sunlight, such as direct sunlight, sky irradiation, or outdoor light, which has entered from the window or opening of the building, to the interior space of the building at an arbitrary angle, and the primary reflected by the primary reflection means A daylighting method characterized by having an introduction illumination means for introducing reflected light into a space in a building where illumination is necessary. Primary reflection means that reflects direct sunlight, skylight, or outdoor light source incident from the window or opening of the building to the interior space of the building at an arbitrary angle, and the primary reflected light is reflected and collected. A daylighting method comprising: a condensing unit; and an introduction illuminating unit that introduces primary reflected light or concentrated light reflected by the condensing unit into a space that requires illumination in a building. The daylighting method according to claim 1 or 2, wherein a part of the primary reflected light, a part of the concentrated light, or the introduction light reflected by the introduction illumination means is reflected to a point in the building where illumination is necessary. A daylighting method comprising spectral illumination means for spectrally diffusing or diffusing with a combination of light and transmission. 4. The daylighting method according to claim 1, further comprising a luminance suppressing means for preventing outdoor light source light, primary reflected light or concentrated light from being dazzled in a building. Method. A daylighting instrument comprising a plurality of reflectors and a support thereof as the primary reflecting means according to claim 1 or 2, wherein the reflectors are arranged on a window surface or an opening surface. The light collecting means shown in claim 2 is disposed inside the building of the primary reflecting means in the building, and is composed of a reflective curtain or a reflector and its support, and reflects and collects outdoor light source light or primary reflected light. A lighting device characterized by that. The lighting device according to claim 6, wherein the reflection screen or the reflector serves as both primary reflection means and luminance suppression means, and reflects and collects part of outdoor light source light or part of primary reflected light. At the same time, a daylighting instrument characterized in that a part of the remaining amount of light is transmitted so that the appearance of the outdoors can be seen while suppressing glare. The introductory illumination means according to claim 1 or 2, comprising a reflecting plate having a reflecting curved surface and a support body thereof, wherein the light is reflected at an arbitrary angle toward the center of the indoor space. Instruments. 4. The spectral illumination means according to claim 3, which is composed of one or a plurality of transmission reflectors that define the ratio of transmission and reflection and its support, and irradiates the illumination spot and reflects the remaining light amount of interest. A daylighting instrument characterized in that a part thereof is transmitted and used for another daylighting application.