JP5874127B2 - Sunlight incident structure consisting of light incident adjustment member - Google Patents

Description

  The present invention actively suppresses daytime light intensity in the summertime indoors, and increases the light intensity in the morning and evening in the winter as much as possible, thereby reducing the fluctuation in the amount of light harvested in each day of the day. It is a sunlight incidence structure provided with.

  In particular, the light reflection function that allows low-altitude sunlight to be incident on the daylighting unit and the direct entry of high-level sunlight into the daylighting unit are partly blocked by being installed on the indoor daylighting unit. The present invention relates to a so-called simple sunlight incident structure including a light incident adjusting member having a light shielding function.

  The east, west, north, and south of the light incident adjusting member in the present specification and claims indicate directions when the light incident adjusting member is disposed in the daylighting portion in the northern hemisphere. In the southern hemisphere, of course, the “north-south” relationship is reversed.

  In this specification, the east-west direction of the light incident adjustment member is described as “left / right” and “lateral”, the south side thereof is described as “front”, and the north side thereof is described as “rear” as necessary.

  Conventionally, there has been proposed a solar daylighting apparatus that increases the amount of light collected in the morning and evening in an indoor daylighting unit, and suppresses the amount of light collected in the daytime, thereby reducing fluctuations in the amount of light collected from morning to evening in the day. (See Patent Document 1 below).

  The solar lighting device here uses two lower concave (upwardly convex) curved plates having a prism surface causing light transmission loss as an upper surface and a substantially totally reflective smooth surface as a lower surface. .

  The pair of curved plates is set in the north-south direction with the lower end portions in common, and one lower surface faces east, the other lower surface faces west, and the entire cross section is substantially V. It arrange | positions so that it may become a letter shape (refer FIG. 20 etc.).

  In other words, in addition to the direct incidence of the morning sunlight, the reflected light from the east-facing down concave smooth surface is also incident on the lighting section, and the evening sunlight is incident on the lighting section. In addition to the direct incidence, the reflection from the downwardly concave smooth surface facing west also enters. As a result, the amount of light collected in the morning and evening is increased as compared with the case of only direct incidence to the daylighting unit.

  Further, sunlight during the day enters the prism surface (upper surface), and the transmitted light enters the daylighting unit. The amount of collected light is suppressed by the amount of loss associated with this transmission.

JP-A-10-112208

  As described above, in the case of a conventional daylighting device that attempts to average the amount of light collected indoors in the morning and evening and daytime, it partially transmits sunlight from a high altitude such as daytime and enters the daylighting unit. Therefore, a light incident adjusting member is used.

  The upper surface of the light incidence adjusting member is a prism surface having specific optical characteristics such as light transmission loss.

  For this reason, the upper surface of the light incident adjustment member is limited to an optically unique property, and there is a problem in that there are large technical restrictions in commercialization.

  The Applicant has studied and simulated the sunlight incident structure to increase indoor daytime light intensity in the morning and evening, and to suppress daytime indoor light intensity. This is the creation of the light incident adjustment member.

  The applicant has filed an application for a full-scale sunlight incident structure for increasing indoor daytime light intensity in the morning and evening and suppressing daytime indoor light intensity (PCT / JP2011 / 061940). The present invention corresponds to a simple type of the solar light incident structure that has been applied for.

  In the present invention, the light incident adjusting member whose bottom surface is a light reflecting surface is formed into a plate shape, and the top surface thereof has a light shielding property, that is, any property that is not light transmissive can be used as a component of the plate shape upper part. In this way, it is an object to simplify and improve the efficiency of manufacturing the light incident adjusting member, and increase the degree of freedom in setting and selecting the properties and materials of the upper surface.

  Another object of the present invention is to actively design the upper surface of the plate-shaped light incident adjusting member with various non-light-transmitting materials so as to make the appearance of the sunlight incident structure smarter.

The present invention solves the above problems as follows.
(1) A light reflection function that allows sunlight from a low altitude to be incident on the daylighting unit by being arranged for an indoor daylighting unit (for example, a daylighting unit 1a described later), and sunlight from a high altitude. In a solar light incident structure comprising a light incident adjusting member (for example, a light incident adjusting member 2, 12, 22 described later), which is also provided with a light shielding function that partially blocks direct incidence of the light into the daylighting unit.
The light incidence adjusting member is
The east side plate part (for example, east side flat plate part 2a, east side curved plate part 12a, curved plate east side part 22a described later) and the west side plate part integrated therewith (for example, west side flat plate part 2b, west side curved plate part 12b, curved plate west side described later) Part 22b),
The east side plate part is
When the light incident adjustment member is disposed in the daylighting unit,
On the north-south line corresponding to the boundary line between the east side plate part and the west side plate part (for example, boundary side 2c, boundary lines 12c, 22c described later), the south side part is positioned higher than the north side part as viewed from the daylighting part. And on the east-west line, the east side part has a shape located above the daylighting part rather than the west side part,
The west side plate part is
When the light incident adjustment member is disposed in the daylighting unit,
On the north-south line, the south side part is located above the daylighting part above the north side part, and on the east-west line, the west side part is located above the daylighting part above the daylighting part. Become
The east side plate portion and the west side plate portion are also
Adjacent contour lines (for example, an east base 2e, a west base 2g, which will be described later), an east base 2g, which will be described later from the north end (for example, a north end B, F, J, which will be described later) of the boundary line in a state where they are respectively disposed in the daylighting unit. The other end of the bottom line 12e, 22e, the west bottom line 12g, 22g) opposite to the north end (for example, the east end C, G, K, west end D, H, L described later) is the daylighting unit. Located in the north away from
Made of shapes,
The overall shape of the light incident adjustment member shows a plate wing shape in the east-west direction with the boundary line being an upper surface valley portion,
The lower surface portion of the east side plate portion and the west side plate portion disposed in the daylighting portion,
At least the sunlight incident from the low altitudes of the east and west is reflected downward to realize the light reflection function,
The upper surface portion of the east side plate portion and the west side plate portion disposed in the daylighting portion,
Realize the light shielding function against sunlight incident at least from daytime high altitudes,
The thing of a structure aspect is used.
(2) In (1) above,
The light incidence adjusting member is
An upper light incidence adjusting member (for example, a light incident adjusting member 2 described later) and a lower light incident adjusting member (for example, a lower light incident adjusting member 2 ′ described later) each including the east side plate portion and the west side plate portion. And consist of
The upper light incidence adjusting member and the lower light incident adjusting member are
In the state arranged in the daylighting unit,
First orthogonal projection of the lower light incidence adjusting member from above on a virtual plane including an incident aperture horizontal plane (for example, an incident aperture horizontal plane 1b described later) of the daylighting unit (for example, a rectangle A′-C in FIG. 4A) '-B'-D') is included in the second orthogonal projection of the upper light incidence adjustment member from above with respect to the virtual plane (for example, square A-C-B-D in FIG. 4A). The incident light reflected first on the lower surface portion of the upper light incident adjustment member enters the daylighting portion as it is,
And the part of the said daylighting part is set in the form located in the outer side of the said 1st orthogonal projection, and between the upper surface part of the said lower side light incident adjustment member, and the lower surface part of the said upper side light incident adjustment member The incident light continuously reflected enters the daylighting part from the part,
Consisting of shape,
The thing of a structure aspect is used.
( 3 ) In (1) and (2) above,
The east side plate portion and the west side plate portion are
Each is a polygonal flat plate part,
The thing of a structure aspect is used.

  The present invention is directed to a sunlight incident structure including the light incident adjusting member having the above-described configuration.

The present invention is based on the above problem solving means.
(11) In addition to simplifying and improving the efficiency of manufacturing the plate-shaped light incident adjustment member, the degree of freedom in setting and selecting the properties and materials of the upper surface of the light incident adjustment member is increased.
(12) To make the exterior of the sunlight incident structure smarter,
be able to.

It is explanatory drawing which shows the sunlight incident structure using the light-incidence adjustment member which consists of a single flat plate wing shape, (a) shows the top view when it sees from right above, (b) is seen from the west side The side view is shown. It is explanatory drawing which shows the sunlight incident structure of FIG. 1, (a) shows the front view when it sees from the south side, (b) has shown the arrow view of the view direction of FIG.1 (b). The perspective view when the sunlight incident structure of FIG. 1 is seen from the southwest upper part is shown. It is explanatory drawing which shows the sunlight incident structure using the light-incidence adjustment member which consists of a total of two flat wing shape of the upper side and the lower side, (a) shows a top view when seen from right above, (b ) Shows a side view as seen from the west side. It is explanatory drawing which shows the sunlight incident structure of FIG. 4, (a) shows the front view when it sees from the south side, (b) has shown the arrow line view of the view direction of FIG.4 (b). The perspective view when the sunlight incident structure of FIG. 4 is seen from the southwest upper part is shown. It is explanatory drawing which shows the sunlight incident structure using the light-incidence adjustment member (the 1) which consists of a single curved board wing shape, (a) shows the top view when it sees from the top, (b) Shows a side view as seen from the west side. It is explanatory drawing which shows the sunlight incident structure of FIG. 7, (a) shows the front view when it sees from the south side, (b) has shown the arrow line view of the view direction of FIG.7 (b). The perspective view when the sunlight incidence structure of FIG. 7 is seen from the southwest upper part is shown. It is explanatory drawing which shows the sunlight incident structure using the light incident adjustment member (the 2) which consists of a single curved-plate wing shape, (a) shows the top view when it sees from the right above, (b) Shows a side view as seen from the west side. It is explanatory drawing which shows the sunlight incident structure of FIG. 10, (a) shows the front view when it sees from the south side, (b) shows the arrow view of the view direction of FIG.10 (b). The perspective view when the sunlight incident structure of FIG. 10 is seen from the southwest upper part is shown. The simulation result of the lighting part incident light beam for one year at the time of arrange | positioning the sunlight incident structure of FIGS. 1-3 in Tokyo area, etc. is shown.

  The form for implementing this invention is demonstrated using FIGS.

  The components of the reference numbers with alphabets (for example, the daylighting section 1a) used in FIGS. 1 to 12 are in principle part of the components of the numerical portions of the reference numbers (for example, the light duct 1).

1 to 12,
1 is a well-known square tube shape for taking in sunlight indoors while reflecting sunlight on the inner surface, at least a light duct in which the sunlight input side extends in a substantially vertical direction,
1a is a daylighting part which is an input part of sunlight,
1b is a square incident aperture horizontal plane defined at the upper end of the daylighting unit 1a;
s is the length of one side of the incident aperture horizontal plane 1b,
Respectively.

1 to 6,
2 is a flat-wing-shaped light incident adjusting member disposed on the upper side of the incident opening horizontal surface 1b;
2a is a triangular east side flat plate portion constituting the light incident adjusting member,
2b is a triangular west side flat plate portion constituting the light incidence adjusting member,
2c is a common part of the east side flat plate part 2a and the west side flat plate part 2b, and is inclined substantially north-south (inclination with respect to the horizontal plane, the same applies hereinafter), a linear boundary side (boundary line),
2d is the east oblique side (east oblique line) of the inclined linear shape of the east side flat plate portion 2a,
2e is a horizontal straight east base (east bottom line) of the east side flat plate part 2a,
2f is an inclined linear west oblique side (west oblique line) of the western flat plate portion 2b,
2g is the horizontal straight west base (west bottom line) of the western flat plate 2b,
A is a south end that is a common end point of the boundary side 2c, the east hypotenuse 2d, and the west hypotenuse 2f,
B is a north end which is a common end point of the boundary side 2c, the east base 2e and the west base 2g,
C is the northeast end which is located at the north and east of the north end B and is the common end of the east oblique side 2d and the east base 2e,
D is a northwest end which is located at the north and west from the north end B and is a common end of the western hypotenuse 2f and the western base 2g,
Respectively.

4 to 6,
2 ′ has a similar shape with the light incident adjustment member 2 having a similarity ratio of approximately “2: 1”, and has a flat plate wing shape disposed in parallel with the light incident adjustment member between the daylighting portion 1a. Side light incident adjustment member,
2a ′ is a lower east side flat plate portion corresponding to the east side flat plate portion 2a,
2b ′ is a lower west side flat plate portion corresponding to the west side flat plate portion 2b,
2c ′ is a lower boundary side (lower boundary line) corresponding to the boundary side 2c,
2d ′ is the lower east oblique side (lower east oblique line) corresponding to the east oblique side 2d,
2e 'is the lower east base corresponding to the east base 2e (the lower east base line),
2f ′ is a lower west hypotenuse (lower west oblique line) corresponding to the west hypotenuse 2f,
2g 'is the lower west base (lower west base line) corresponding to the west base 2g,
A ′, B ′, C ′, and D ′ are respectively the south end, the north end, and the north south end, the north north end, and the north north end corresponding to the south end A, north end B, northeast end C, and northwest end D, respectively. Edge and lower northwest edge,
Respectively.

1 to 6,
θ1 is a mounting angle of the light incident adjusting members 2 and 2 ′ in the north-south direction with respect to the optical duct 1 (inclination angles of the boundary side 2c and the lower boundary side 2c ′ with respect to the incident opening horizontal plane 1b: FIGS. 1B and 4B) reference),
θ2 is an opening angle indicating an east-west inclination state between the east side flat plate portion 2a and the lower east side flat plate portion 2a ′ and the west side flat plate portion 2b and the lower west side flat plate portion 2b ′ at the boundary side 2c and the lower boundary side 2c ′ (see FIG. 2 (b) and FIG. 5 (b)),
view is the direction of the arrow when creating FIG. 2 (b) and FIG. 5 (b) (see FIG. 1 (b) and FIG. 4 (b)),
r1 is an optical path of sunlight that is reflected from the upper surface of the east side flat plate portion 2a or the west side flat plate portion 2b and does not enter the daylighting portion 1 (see FIGS. 1 (a) and 4 (a)),
r2 is an optical path of sunlight that directly enters the daylighting unit 1 (see FIGS. 1 (a) and 4 (a)),
r3 is an optical path of sunlight from the west direction reflected from the lower surface of the west flat plate portion 2b and incident on the daylighting portion 1 (see FIGS. 1 (b) and 4 (b)),
r4 is an optical path of sunlight from the west direction (see FIG. 4 (b)), which is reflected by the lower surface of the lower west side flat plate portion 2b 'and enters the daylighting portion 1.
r5 travels while reflecting between the west flat plate portion 2b and the lower west flat plate portion 2b 'and between the east flat plate portion 2a and the lower east flat plate portion 2a', and finally reflected by the lower surface of the east flat plate portion 2a. An optical path of sunlight entering the daylighting section 1 from the southwest direction (see FIG. 5 (b)),
Respectively.

7 to 9,
12 is a curved plate wing-shaped light incident adjustment member (part 1) arranged on the upper side of the incident opening horizontal plane 1b and in which the boundary portion of the wing portion composed of the east and west curved surfaces continues in a bent state;
12a is a component of the light incident adjustment member, and consists of a part of a cylindrical peripheral surface (a peripheral surface portion obtained when the cylinder is cut along a slope with respect to its central axis (= arrow view direction described later)). Convex east side curved plate,
12b is a component of the light incident adjustment member, and is composed of a west side curved plate portion that is convex upward, consisting of a east side curved plate portion 12a and a part of a cylindrical circumferential surface symmetrical in the east-west direction,
12c is a so-called common part of the east side curved plate part 12a and the west side curved plate part 12b, and is an inclined linear boundary line extending from north to south,
12d is an east oblique line in the shape of an inclined curve of the east side curved plate portion 12a,
12e is the east bottom line of the horizontal curve shape of the east side curved plate part 12a,
12f is a west oblique line in the shape of an inclined curve of the west curved plate portion 12b,
12g is the west bottom line of the horizontal curve shape of the west side curved plate part 12b,
E is a south end that is a common end point of the boundary line 12c, the east oblique line 12d, and the west oblique line 12f,
F is a north end which is a common end point of the boundary line 12c, the east bottom line 12e, and the west bottom line 12g,
G is located at the northeast end which is located at the north and east from the north end F and is a common end point of the east oblique line 12d and the east bottom line 12e,
H is a northwest end which is located at the north and west from the north end F and is a common end point of the west oblique line 12f and the west bottom line 12g,
Respectively.

7 to 9,
θ11 is a mounting angle of the light incident adjusting member 12 corresponding to θ1 in FIGS. 1 to 6 (inclination angle of the boundary line 12c with respect to the incident opening horizontal plane 1b: see FIG. 7B),
θ12 is an opening angle corresponding to the east-west inclination state between the east side curved plate portion 12a and the west side curved plate portion 12b (see FIG. 8B),
view is the direction of the arrow when creating FIG. 8B (see FIG. 7B),
r11 is an optical path of sunlight that is reflected from the upper surface of the east side curved plate portion 12a or the west side curved plate portion 12b and does not enter the daylighting portion 1 (see FIG. 7A),
r12 is the optical path of sunlight that directly enters the daylighting unit 1 (see FIG. 7 (a)),
r13 is an optical path of sunlight from the west direction reflected from the lower surface of the west side curved plate portion 12b and incident on the daylighting portion 1 (see FIG. 7B),
Respectively.

  Here, θ12 is a virtual eastern triangle specified by three points of the south end E, the north end F and the northeast end G, and three points of the south end E, the north end F and the northwest end H. The opening angle which shows the inclination state of the east-west direction between the virtual west triangle specified by (2) is shown. That is, the angle corresponds to θ2 in FIG.

10-12,
22 is a curved plate wing-shaped light incident adjustment member (part 2) which is arranged above the incident opening horizontal plane 1b and in which the entire wing portion composed of the curved surfaces of east and west is continuous in a state without convex downward. ,
22a is a portion corresponding to the east side curved plate portion of FIGS. 7 to 9, and is a part of the circumferential surface of the cylinder [the circumference obtained when the cylinder is cut by a slope with respect to its central axis (= arrow view direction described later). The east side of the curved plate,
22b is a part corresponding to the west side curved plate part of FIGS. 7-9, and the curved plate east side part 22a and the curved plate west side part composed of a part of the cylindrical circumferential surface symmetrical in the east-west direction,
22c is a so-called common portion of the curved plate east side portion 22a and the curved plate west side portion 22b, and an inclined straight virtual boundary line extending from north to south,
22d is an inclined east oblique line of the curved plate east side portion 22a,
22e is a horizontal curved east bottom line of the curved plate east side portion 22a,
22f is a west oblique line in the shape of an inclined curve of the curved plate west portion 22b,
22g is a horizontal curved west bottom line of the curved plate west portion 22b,
I is a south end which is a common end point of the boundary line 22c, the east oblique line 22d and the west oblique line 22f,
J is a north end which is a common end point of the boundary line 22c, the east bottom line 22e, and the west bottom line 22g,
K is a northeast end that is located at the north and east of the north end J and is a common end point of the east oblique line 22d and the east bottom line 22e,
L is a northwest end which is located at the north and west from the north end J and is a common end point of the west oblique line 22f and the west bottom line 22g,
Respectively.

10 to 12,
θ21 corresponds to θ1 in FIGS. 1 to 6 and θ11 in FIGS. 7 to 9, the mounting angle of the light incident adjusting member 22 (inclination angle of the boundary line 22 c with respect to the incident opening horizontal plane 1 b: see FIG. 10B),
θ22 corresponds to θ12 in FIGS. 7 to 9, and is an opening angle indicating an east-west inclination state between the curved plate east portion 22a and the curved plate west portion 22b (see FIG. 11B),
view is the direction of the arrow when creating FIG. 11 (b) (see FIG. 10 (b)),
r21 is an optical path of sunlight that is reflected from the upper surface of the curved plate east side portion 22a or the curved plate west side portion 22b and does not enter the daylighting section 1 (see FIG. 10 (a)).
r22 is the optical path of sunlight that directly enters the daylighting unit 1 (see FIG. 10 (a)),
r23 is an optical path of sunlight from the west direction reflected from the lower surface of the curved plate west portion 22b and incident on the daylighting section 1 (see FIG. 10 (b)),
Respectively.

  Here, the east side flat plate portion 2a, the lower east side flat plate portion 2a ', the east side curved plate portion 12a, the curved plate east side portion 22a, the west side flat plate portion 2b, the lower west side flat plate portion 2b', the west side curved plate portion 12b, and the curved plate west side portion 22b. Each upper and lower surface acts as a light reflecting surface.

  The upper surfaces of the east side flat plate portion 2a, the west side flat plate portion 2b, the east side curved plate portion 12a, the west side curved plate portion 12b, the curved plate east side portion 22a and the curved plate west side portion 22b also function as light shielding surfaces.

  The boundary side 2c, the lower boundary side 2c, and the boundary lines 12c and 22c are upper surface valley portions of the light incident adjustment members 2, 2 ′, 12, and 22, respectively.

  East hypotenuse 2d, East base 2e, West hypotenuse 2f, West base 2g, Lower East hypotenuse 2d ', Lower East base 2e', Lower West hypotenuse 2f ', Lower West base 2g', East hypolines 12d, 22d, East base 12e, 22e, west oblique lines 12f and 22f, and west bottom lines 12g and 22g are contour lines of the light incident adjusting members 2, 2 ', 12, and 22, respectively.

  Further, the east base 2e, the west base 2g, the lower east base 2e ', the lower west base 2g', the east base 12e, 22e, and the west base 12g, 22g are adjacent to the north ends B, B ', F, J, respectively. It is a contour line.

The basic features of the illustrated light incidence adjustment members 2, 12, 22 and the lower light incidence adjustment member 2 ′ are:
(21) East side component (east side flat plate portion 2a, lower east side flat plate portion 2a ', east side curved plate portion 12a, curved plate east side portion 22a) and west side component (west side flat plate portion 2b, lower west side flat plate portion 2b', west side curve) It consists of a continuous plate portion with a plate portion 12b and a curved plate west portion 22b),
(22) The plate parts as the east component are the south end / lower south end A, A ′, E, I, north end / lower north end B, B ′, F, J, north It has three points, the east end and the lower north end C, C ′, G, K,
(23) The plate parts as the west component are the south end / lower south end A, A ′, E, I, the north end / lower north end B, B ′, F, J, It has three points, the west end and the lower northwest end D, D ', H, L,
That is.

The basic features of the light incident adjusting members 2, 12, 22 and the lower light incident adjusting member 2 ′ in the state of being attached to the optical duct 1 are as follows.
(31) Each overall shape is symmetric with respect to a north-south vertical plane passing through the daylighting section 1a.
(32) North end B, F, J, lower north end B ', northeast end C, G, K, lower north end C', northwest end D, H, L and lower northwest end Each end of D ′ is located on a horizontal plane including the incident opening horizontal plane 1b of the daylighting section 1a,
(33) The end portions of the south end portions A, E, I and the lower south end portion A ′ are located above the horizontal plane including the incident opening horizontal plane 1b of the daylighting section 1a,
(34) The east side component and the plate portion of the west side component (the east side flat plate portion 2a, the lower east side flat plate portion 2a ', the east side curved plate portion 12a, the curved plate east side portion 22a, the west side flat plate portion 2b, the lower west side flat plate portion 2b. ', The upper and lower light reflecting surfaces of the west curved plate portion 12b and the curved plate west portion 22b) are respectively located above the north side portion on the north-south line as viewed from the daylighting portion 1a, that is, in the south direction. In other words, it ’s going to go up sequentially,
(35) The upper and lower light reflecting surfaces of the plate portions (the east side flat plate portion 2a, the lower east side flat plate portion 2a ', the east side curved plate portion 12a, the curved plate east side portion 22a) of the east component are respectively west portions on the east-west line. The east side part is located above the daylighting part 1a, that is, the surface that goes up sequentially in the east direction,
(36) The upper and lower light reflecting surfaces of the plate portions (the west side flat plate portion 2b, the lower west side flat plate portion 2b ′, the west side bent plate portion 12b, the bent plate west side portion 22b) of the west component are respectively east portions on the east-west line. The west side part is located above the daylighting part 1a, that is, the surface that rises sequentially in the west direction,
(37) At least a part of the boundary side / lower boundary side 2c, 2c ′ and the boundary lines 12c, 22c are arranged directly above the daylighting portion 1a (FIGS. 1A, 4A, 7C). a), see FIG. 10 (a)),
(38) A part of the incident aperture horizontal plane 1b is located outside the orthogonal projection when the light incident adjusting members 2, 2 ', 12, and 22 are viewed from directly above (FIGS. 1 (a) and 4 (a). ), FIG. 7 (a), FIG. 10 (a))
(39) When the light incident adjusting member 2 and the lower light incident adjusting member 2 ′ are viewed from directly above, the entire orthogonal projection of the lower light incident adjusting member 2 ′ enters the orthogonal projection of the light incident adjusting member 2. (See Fig. 4 (a))
And so on.

  Orthographic projections such as the above (38), (39) and paragraph [0049] are projected shapes on a virtual plane including the entrance aperture horizontal plane 1b of the daylighting unit 1a.

  In the case of the sunlight incident structure of FIGS. 1 to 3 and FIGS. 7 to 12, incident light from low altitudes in the east and west is, as indicated by optical paths r3, r13, and r23, an east side flat plate portion 2a, an east side curved plate portion. 12a, the curved plate east side portion 22a, the west side flat plate portion 2b, the west side curved plate portion 12b, and the curved plate west side portion 22b are reflected on the lower surfaces, and then enter the daylighting portion 1a.

  Incident light from low altitudes in the east and west is taken into the light duct 1 from the straight route to the daylighting section 1a as shown by the optical paths r2, r12, and r22 in addition to the lower surface reflected light.

  On the other hand, as shown by optical paths r1, r11, r21, a part of the incident light from the southern high altitude is east side flat plate portion 2a, east side curved plate portion 12a, curved plate east side portion 22a, west side flat plate portion 2b, west side curved plate. Reflected by the upper surfaces (light shielding surfaces) of the portion 12b and the curved plate west side portion 22b, entry into the daylighting portion 1a is prevented.

Of course, not all of the incident light from a high altitude is prevented from entering the daylighting unit 1a.
As shown by the optical path r2, the east side flat plate portion 2a, the east side curved plate portion 12a, the curved plate east side portion 22a, the west side flat plate portion 2b, the west side curved plate portion 12b, and the curved plate west side portion 22b are shielded by the upper surfaces (light shielding surfaces). There is also high-level incident light that goes straight to the daylighting unit 1a without being affected.

  In addition, low-level incident light from the south in winter is also generated on the lower surfaces of the east side flat plate portion 2a, the east side curved plate portion 12a, the curved plate east side portion 22a, the west side flat plate portion 2b, the west side curved plate portion 12b, and the curved plate west side portion 22b. After reflection, the light can enter the daylighting unit 1a.

  As for the incident light from such a low altitude, the reflected light on the lower surfaces of the light incident adjusting members 2, 12, and 22 is also actively introduced into the daylighting unit 1a in addition to the straight light, and on the other hand, Part of incident light from a high altitude is prevented from being introduced into the daylighting unit 1a, and thereby, the amount of indoor light collected in each time zone of the day is averaged as much as possible throughout the year.

  That is, as shown in FIG. 13, the daylighting performance in the daytime in summer can be actively reduced, and the daylighting performance in the morning and evening in winter can be improved as much as possible.

Moreover, as a light-entrance part entrance optical path of the incident light from the east or west low altitude in the sunlight incident structure of FIGS. 4-6,
(41) In addition to the optical paths r3 and r4 reflected on the lower surfaces of the east side flat plate portion 2a, the west side flat plate portion 2b, the lower east side flat plate portion 2a ′ and the lower west side flat plate portion 2b ′,
(42) Proceed while reflecting between the lower surface of the east flat plate portion 2a and the west flat plate portion 2b and the upper surface of the lower east flat plate portion 2a 'and the lower west flat plate portion 2b', and finally the east flat plate portion 2a and the west flat plate portion 2b. There is an optical path r5 that is reflected by the lower surface of.

  In order to ensure this optical path r5, as shown in FIG. 4 (a), a quadrangle (A-C-B-D) which is an orthogonal projection range from directly above the east side flat plate portion 2a and the west side flat plate portion 2b, and And a quadrangle (A'-C'-B'-D ') which is an orthogonal projection range from directly above the lower east side flat plate portion 2a' and the lower west side flat plate portion 2b ' It is Of course, (A-C-B-D)> (A'-C'-B'-D ').

  Examples of numerical values such as the sizes and installation angles of the light incident adjusting members 2, 12, and 22 with respect to the general-purpose daylighting section 1 a (incident aperture horizontal plane 1 b) having a side length s of, for example, 900 mm are as follows.

In other words, regarding size,
(Figs. 1-6)
Length of boundary side 2c: 1500mm
Length of east oblique side 2d, west oblique side 2f: 2084mm
Length of east base 2e, west base 2g: 1006mm
(FIGS. 7 to 9)
Length of boundary line 12c: 1350mm
Actual length of east oblique line 12d and west oblique line 12f: 1984mm
Actual length of east bottom line 12e, west bottom line 12g: 1173mm
Length of virtual line segment (straight line) EG, EH: 1962mm
Length of virtual line segment (straight line) FG, FH: 1125mm
Curvature radius of east side curved plate portion 12a and west side curved plate portion 12b: 1129 mm (see FIG. 8B)
(FIGS. 10 to 12)
Length of boundary line 22c: 1509mm
Actual length of east oblique line 22d and west oblique line 22f: 1981mm
Actual length of east bottom line 22e, west bottom line 22g: 1059mm
Virtual line segment (straight line) IK, IL length: 1970mm
Length of virtual line segment (straight line) JK, JL: 1033 mm
Curvature radius of curved plate east side portion 22a and curved plate east side portion 22b: 1465 mm (see FIG. 11 (b))
Take numerical examples such as.

  In addition, the east side curved plate part 12a, the west side curved plate part 12b, the curved plate east side part 22a, and the curved plate west side part 22b consist of a part of cylindrical peripheral surface as mentioned above. The radius of curvature is a radius of a surface orthogonal to the axial direction of each corresponding cylinder such as the curved plate portion.

As for the angle,
θ1: 36.9 °
θ2: 147 °
θ11: 60.0 °
θ12: 127 °
θ21: 63.4 °
θ22: 139 °
Angle between line segments BC and BD and the east-west direction line of the incident opening horizontal plane 1b: 26.6 ° (see FIG. 1 (a))
Angle between imaginary line segments FG, FH and the east-west direction line of the incident aperture horizontal plane 1b: 30.0 ° (see FIG. 7 (a))
Angle between imaginary line segments JK, JL and the east-west direction line of incident aperture horizontal plane 1b: 22.5 ° (see FIG. 10 (a))
Take numerical examples such as.

  The overall shape of the light incident adjusting member 2 ′ used in FIGS. 4 to 6 is similar to the light incident adjusting member 2 of FIGS. 1 to 3 as described above. The similarity ratio between the light incident adjusting member 2 ′ and the light incident adjusting member 2 is substantially “1: 2”.

  FIG. 13 shows a simulation result of the incident part light flux (unit: lumen, lm) for one year when the sunlight incident structure of FIGS. 1 to 3 is used.

  The horizontal axis indicates the simulation target date and time (from 8:00 to 16:00 on the 22nd of every month), and the vertical axis indicates the amount of light flux incident on the daylighting unit 1a.

here,
・ The graph of “Normal Aperture” is the simulation result when the sunlight incident structure is not used.
・ The graph of “Flat lighting” is the simulation result when using the sunlight incident structure of FIG. 1 of “PCT / JP2011 / 061940” already proposed by the applicant,
-The graph of "simple lighting" is a simulation result at the time of using the sunlight incident structure (FIGS. 1-3) which consists of the flat-wing-shaped light incidence adjustment member 2 of this application.

  As is clear from this graph, the “simple lighting” according to the present application is lower than the previously proposed “flat lighting” in terms of the annual average incident light flux, but is incident at the same time of the day. In terms of suppressing fluctuations in the amount of light flux over the year, it exhibits an incident light flux characteristic that is not much different from “flat lighting”.

  In addition, also when using the sunlight incident structure which consists of the light incident adjustment member of each of "FIGS. 4-6", "FIGS. 7-9", and "FIGS. 10-12" of FIG. An incident light flux characteristic similar to “simple flat” can be obtained.

  When arranging the light incident adjusting member and the lower light incident adjusting members 2, 2 ′, 12, 22, these members are directly attached to the duct 1 or attached to auxiliary members provided in the duct 1. At this time, various fixing means such as screwing, riveting, and adhesion are appropriately used.

As the light reflection surface of the light incidence adjustment member / lower light incidence adjustment member 2, 2 ′, 12, 22,
・ Use aluminum mirrors, stainless steel mirrors, resin mirrors with silver and aluminum vacuum metallized film treatment, glass mirror surfaces, and satin-like reflective surfaces.

Of course, the present invention is not limited to the above embodiments, for example,
(51) Design is improved by applying decoration on the upper surfaces of the light incident adjusting members 2, 12, and 22.
(52) So rounded each end (excluding the north end J) in a protruding state,
(53) The boundary side 2c, the lower boundary side 2c ′, the boundary line 12c, and the entire vicinity thereof are set to a curved surface shape in the east-west direction.
(54) To the extent that the basic features such as (33) to (39) above are appropriately secured,
・ The northeast end C, G, K and the northwest end D, H, L are more south than the south ends B, F, J (including the same east-west vertical plane as the south ends B, F, J) Or set it to
-By changing the values of the light incident adjusting members 2, 12, 22 and the similarities between the light incident adjusting member 2 and the lower light incident adjusting member 2 '
Adjust the sunlight incident on the daylighting unit,
(55) The overall shape of (31) above is set asymmetrically.
(56) Each end of the above (32) is set below or above the horizontal plane including the incident opening horizontal plane 1b of the daylighting section 1a.
(57) The east side flat plate portion 2a, the west side flat plate portion 2b, the lower east side flat plate portion 2a 'and the lower west side flat plate portion 2b' of the light incidence adjustment member 2 and the lower light incidence adjustment member 2 'are set to a polygonal shape of a square or more. ,
(58) The planar shape of the light incident adjusting member 2 and the lower light incident adjusting member 2 ′ is set to a curved shape other than a polygon.
(59) Change the outer shape of the east side curved plate portion 12a, the curved plate east side portion 22a, the west side curved plate portion 12b, and the curved plate west side portion 22b of the light incidence adjusting members 12, 22.
(60) The number of upper and lower stages of the light incident adjusting member and the lower light incident adjusting member in the sunlight incident structure of FIGS. 4 to 6 is set to three or more.
(61) Provide a lower light incident adjusting member for each of the light incident adjusting members 12 and 22 to form a sunlight incident structure consisting of upper and lower multi-stages similar to FIGS.
(62) The north side flat plate disclosed in the above PCT / JP2011 / 061940 and the north side curved plate corresponding thereto are provided.
You may do it.

(FIGS. 1-12)
1: Optical duct 1a: Daylighting portion 1b: Square incident aperture horizontal plane s: Length of one side of incident aperture horizontal plane

(Figs. 1-6)
2: Flat wing-shaped light incidence adjusting member 2a: Triangular east side flat plate part 2b: Triangular west side flat plate part 2c: Inclined linear boundary (boundary line)
2d: Inclined straight east oblique line (east oblique line)
2e: Horizontal straight east base (east bottom line)
2f: Inclined straight west hypotenuse (west oblique line)
2g: Horizontal straight west base (west bottom line),
A: South end B: North end C: North end D: North end 2 ′: Lower light incidence adjusting member 2a ′ of flat plate wing shape: Lower east flat plate portion 2b ′: triangular shape Lower west side flat plate part 2c ': Lower boundary side of inclined straight line (lower boundary line)
2d ': Lower straight slope of the inclined straight line (lower east oblique line)
2e ': Bottom line of the bottom east of the horizontal line (bottom east bottom line)
2f ′: Lower west hypotenuse (lower west oblique line)
2g ': Lower west bottom of the horizontal straight line (lower west bottom line)
A ′: Lower south end B ′: Lower north end C ′: Lower northeast end D ′: Lower northwest end θ1: Mounting angle θ2 of the light incident adjusting member 2, 2 ′ θ2: East-west opening angle
view: arrow direction r1: sunlight optical path that does not enter the daylighting unit 1 r2: sunlight optical path that directly enters the daylighting unit 1 r3: west direction that is reflected by the light incident adjusting member 2 and incident on the daylighting unit 1 Light path r4 from sunlight: Reflected by the lower light incidence adjusting member 2 ′ and incident on the lighting unit 1 from the west direction r5: Light incident adjusting member 2 and the lower light incident adjusting member 2 ′ The path of sunlight from the southwest that is reflected between and incident on the lighting unit 1

(FIGS. 7 to 9)
12: Curved plate wing-shaped (part 1) light incidence adjusting member 12a: East curved plate portion 12b: West curved plate portion 12c: Inclined linear boundary 12d: Inclined curved east diagonal 12e: Horizontal curved east Bottom line 12f: Inclined curved west oblique line 12g: Horizontal curved west bottom line E: South end F: North end G: North end H: Northwest end θ11: Mounting angle θ12 of the light incident adjusting member 12 : East-west opening angle
view: arrow viewing direction r11: sunlight optical path that does not enter the daylighting unit 1 r12: sunlight optical path that is directly incident on the daylighting unit 1 r13: west direction that is reflected by the light incident adjusting member 12d and incident on the daylighting unit 1 Sunlight path from

(FIGS. 10 to 12)
22: Curved plate wing-shaped (part 2) light incident adjusting member 22a: Curved plate east side portion 22b: Curved plate west side portion 22c: Inclined linear virtual boundary line 22d: Inclined curved east oblique line 22e: Horizontal curve East bottom line 22f: inclined curved west oblique line 22g: horizontal curved west bottom line I: south end J: north end K: northeast end L: northwest end θ21: light incident adjusting member 22 Mounting angle θ22: East-west opening angle
view: arrow viewing direction r21: sunlight light path not entering the daylighting unit 1 r22: sunlight light path directly entering the daylighting unit 1 r23: west direction reflected by the light incident adjusting member 22 and incident on the daylighting unit 1 Sunlight path from

Claims (3)

A light reflection function that allows sunlight from a low altitude to enter the daylighting unit and a direct incidence of sunlight from a high altitude to the daylighting unit by being arranged for the daylighting unit indoors. In the sunlight incident structure consisting of a light incident adjustment member, which is also equipped with a light shielding function to block,
The light incidence adjusting member is
It has an east side plate part and a west side plate part integral therewith,
The east side plate part is
When the light incident adjustment member is disposed in the daylighting unit,
On the north-south line corresponding to the boundary line between the east side plate part and the west side plate part, the south side part is located above the north side part with respect to the daylighting part, and the east side part on the east-west line than the west side part. It has a shape that is located above when viewed from the daylighting unit,
The west side plate part is
When the light incident adjustment member is disposed in the daylighting unit,
On the north-south line, the south side part is located above the daylighting part above the north side part, and on the east-west line, the west side part is located above the daylighting part above the daylighting part. Become
The east side plate portion and the west side plate portion are also
The other end opposite to the north end of the adjacent contour line that continues from the north end of the boundary line is located at a location away from the daylighting portion in the north direction in a state where each is arranged in the daylighting portion. ,
Made of shapes,
The overall shape of the light incident adjustment member shows a plate wing shape in the east-west direction with the boundary line being an upper surface valley portion,
The lower surface portion of the east side plate portion and the west side plate portion disposed in the daylighting portion,
At least the sunlight incident from the low altitudes of the east and west is reflected downward to realize the light reflection function,
The upper surface portion of the east side plate portion and the west side plate portion disposed in the daylighting portion,
Realize the light shielding function against sunlight incident at least from daytime high altitudes,
A sunlight incident structure characterized by that. The light incidence adjusting member is
Each of the east side plate portion and the west side plate portion is provided with an upper light incidence adjustment member and a lower light incidence adjustment member,
The upper light incidence adjusting member and the lower light incident adjusting member are
In the state arranged in the daylighting unit,
The first orthographic projection of the lower light incidence adjusting member from above on the virtual plane including the incident aperture horizontal plane of the daylighting portion becomes the second orthographic projection of the upper light incident adjusting member from above on the virtual plane. The incident light that is first reflected by the lower surface portion of the upper light incident adjustment member enters the daylighting unit as it is,
And the part of the said daylighting part is set in the form located in the outer side of the said 1st orthogonal projection, and between the upper surface part of the said lower side light incident adjustment member, and the lower surface part of the said upper side light incident adjustment member The incident light continuously reflected enters the daylighting part from the part,
Consisting of shape,
The solar light incident structure according to claim 1. The east side plate portion and the west side plate portion are
Each is a polygonal flat plate part,
The sunlight incidence structure according to claim 1 or 2, wherein

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