JP4547736B2 - Lighting method and lighting apparatus - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  This invention realizes energy saving and makes indoor space feel brighter.lighting equipmentIt is about.
[0002]
[Prior art]
Conventionally, indoor lighting, such as a living room of a house, has mainly taken the form of installing a lighting fixture represented by a ceiling light or a pendant in the center of the ceiling surface of the room. A typical conventional lighting fixture and its light distribution are shown in FIGS. In FIG. 18 (a), 100 is an instrument body, 101 is an annular fluorescent lamp, and 102 is a milky glove. 19 (a) and 19 (b) have different glove shapes, and FIGS. 20 (a) and 20 (c) and FIGS. 21 (a) and 21 (c) have different shade shapes.
[0003]
Each of these light distributions projects directly below, and does not project significantly in the horizontal direction.
[0004]
[Problems to be solved by the invention]
However, when assuming visual work in the living room, it is necessary to ensure the illuminance of the relatively central part of the room while illuminating the entire room, so the brightness of the wall surface and the brightness of the corner of the room are inevitably reduced, The feeling of brightness in the room is low with respect to the total luminous flux of the entire apparatus. The feeling of brightness described here indicates the impression of brightness felt for the entire room space, and is different from the brightness of the visual work surface evaluated by the desk surface illuminance, It is an important human sensory amount that determines the quality of lighting in the room. Ceiling surface brightness, wall surface illuminance, and brightness at the corners of the room have a strong effect on the feeling of brightness. To enhance the feeling of brightness, it is necessary to increase the brightness of the wall surface and the brightness at the corners of the room while ensuring the ceiling surface brightness. is necessary.
[0005]
With respect to illumination that increases the wall surface brightness and the brightness at the corners of the room while ensuring the ceiling surface brightness, conventional lighting includes “indirect lighting”, “one-room multiple lighting”, “wall washer”, and the like. Indirect lighting eliminates the glare of the light source and can illuminate the ceiling and wall surfaces with soft light, but on the other hand, the lighting is not sharp and the brightness does not necessarily increase. Multi-lamp lighting in a room can create a comfortable lighting environment by installing lighting fixtures in the necessary parts, and can create various lighting environments according to the application, but because many lighting fixtures are required, There are disadvantages in terms of cost and energy consumption, and the amount and layout of the room space may disturb the visual harmony of the room space. As for wall washers, although the wall surface is brightened locally, it does not necessarily increase the overall brightness of the room space. Similar disadvantages occur.
[0006]
  Therefore, an object of the present invention is to make the whole room space feel bright by illuminating the upper part of the ceiling surface and the wall surface brightly while securing the luminous flux below the lighting fixture in the room space.lighting equipmentIs to provide.
[0007]
[Means for Solving the Problems]
  The lighting apparatus according to claim 1,A ring-shaped lamp in a horizontal position, a ring-shaped first reflector that is disposed above the ring lamp and reflects light emitted upward from the ring lamp in a lateral direction, and disposed below the ring lamp. And a ring-shaped second reflecting plate that reflects the lamp light downward and laterally, and a third reflecting plate that is disposed inside the annular lamp and reflects the lamp light downward.Is.
[0008]
  Claim 1lighting equipmentAccording toIt is possible to actively illuminate the horizontal direction as well as the vertical direction of the luminaire. In this way, by illuminating the ceiling surface and wall surface while ensuring the illuminance below the lighting fixture, the entire illuminated room space can be felt bright and the brightness can be improved. Furthermore, this lighting environment can be realized with one lighting device for one room space.
[0009]
  The lighting fixture according to claim 2 is:The wave-shaped light guide plate according to claim 1, wherein a wave-shaped light guide plate that emits light incident from a direction near the first reflector in a direction perpendicular to the center of the ring-shaped first reflector is provided.Is.
[0010]
  According to the lighting fixture of claim 2,In addition to the effect of the first aspect, light entering at a deep angle with respect to the first reflector can also be reflected laterally by the light guide plate..
[0011]
  The lighting fixture according to claim 3 is:3. The milky glove according to claim 1, further comprising an instrument body that supports the annular lamp, the first reflector, the second reflector, and the third reflector, and covers a lower side thereof. And a space between the peripheral part of the milky white glove and the peripheral part of the instrument body is covered with a translucent member.
[0012]
  According to the lighting fixture of claim 3,In addition to the effects similar to those of the first or second aspect, the glove can prevent dust and the like from entering the instrument and can actively emit light laterally from the permeable part of the glove.
[0013]
  The lighting fixture according to claim 4 is:In Claim 3, A said 2nd reflecting plate is being fixed to the said milky glove.
[0014]
  According to the lighting fixture of claim 4,In addition to the same effect as that of the third aspect, the second reflector can be separated from the annular lamp by removing the globe, so that the lamp can be easily replaced.
[0015]
  The lighting fixture according to claim 5 is:An upper annular lamp in a horizontal position, a lower annular lamp disposed coaxially and parallel to the lower side of the upper annular lamp, and an upper annular lamp disposed above the upper annular lamp A ring-shaped lateral reflector that reflects light emitted upward from the lateral direction, and the lamp light of the upper annular lamp located between the upper annular lamp and the lower annular lamp in the lateral direction And a ring-shaped dividing reflecting plate inclined so as to reflect the lamp light of the lower ring lamp downward.Is.
[0016]
  According to the lighting fixture of Claim 5, the light distribution to a horizontal direction and a downward direction is realizable with the simplified reflecting plate.
  According to a sixth aspect of the present invention, there is provided a ring-shaped lamp in a horizontal position, a reflector that enters the inside of the ring-shaped lamp and reflects the lamp light in a lateral direction, and a lamp of the ring-shaped lamp that is disposed below the ring-shaped lamp. It is a lighting fixture provided with the ring-shaped division | segmentation reflecting plate which reflects light to a horizontal direction and a downward direction.
  According to the lighting fixture of Claim 6, light distribution to a horizontal direction and a downward direction is realizable with the simplified reflecting plate.
  The lighting fixture according to claim 7, a ring lamp in a horizontal position, a ring-shaped upper reflector that is disposed above the ring lamp and reflects light emitted upward from the ring lamp in a lateral direction, and the ring-shaped lamp A central reflector that is arranged inside the lamp and reflects the lamp light downward; and a louver that uses a ring-shaped flat plate that is arranged so that the annular lamp is located on the inside and reflects the lamp light in the ceiling surface and the lateral direction. It is the lighting fixture provided with.
  According to the lighting apparatus of the seventh aspect, the same effect as that of the first aspect can be obtained.
  The invention relating to the lighting fixture according to claim 8 is a horizontally oriented fixture body having a plurality of light sources arranged on the peripheral side surface, an annular lamp arranged in parallel to the fixture body on the lower side of the fixture body, It is a luminaire provided with a ring-shaped reflector that is arranged coaxially with the annular lamp so that the annular lamp is on the inside and reflects light downward and laterally.
  According to the lighting apparatus of the eighth aspect, the same effect as that of the first aspect can be obtained.
  The invention according to claim 9 is provided on a peripheral side surface of the fixture main body having an annular lamp, a globe attached to the fixture main body and covering the annular lamp, and an outer periphery of the globe. A light source and an angle-adjustable reflector that is hinged adjacent to the light source and reflects the light from the light source.
  According to the lighting fixture of Claim 9, a horizontal direction and the downward direction can be illuminated.
  The invention according to claim 10 includes an appliance main body having an annular lamp, a globe attached to the appliance main body to cover the annular lamp, and a peripheral side surface of the appliance main body on the outer periphery of the globe. It is the lighting fixture provided with the made light source.
  According to the lighting device of the tenth aspect, the lateral direction and the lower side can be illuminated.
  Claim11The invention relating to the luminaire described above includes two light sources juxtaposed vertically and a reflector that is interposed between the two light sources and that illuminates laterally by the upper light source and illuminates downward by the lower light source. It is the lighting fixture provided with.
  Claim11According to the described lighting fixture, the same effect as in the ninth aspect is obtained.
  Claim12The invention relating to the luminaire described above is an annular lamp having a horizontal posture and a cylindrical shape having a concave circumferential surface, and the annular lamp is fitted to the circumferential surface.Lamp lightAnd a reflecting plate that reflects in the downward and lateral directions, the reflecting plate is a lighting fixture whose lower half is a half mirror.
  Claim12According to the described lighting fixture, the same effect as in the ninth aspect is obtained.
  Claim13The invention relating to the luminaire described above includes: a light source; and a louver composed of a plurality of reverse casket-shaped louver pieces that surround the light source and are arranged in the vertical direction, and the upper end of each louver piece has an upper louver piece. The lighting equipment is getting bigger.
  Claim13According to the luminaire described above, there is an effect similar to that of the first aspect.
  Claim14The invention relating to the luminaire described above includes a straight tube light source arranged in parallel along a corner of the ceiling surface and the wall surface, and the light sourceBack ofA rear reflector that is disposed on the corner side that is the surface side and illuminates the ceiling surface and the upper part of the wall surface, and a globe or a reflector that is attached to the reflector via a connecting member and is located on the front side of the light source It is a lighting fixture provided with the board.
  Claim14According to the illuminating device described above, the upper surface of the wall surface is irradiated by the back reflector, and the ceiling surface is also irradiated, so that the corners of the room can be brightened and the whole room can be felt bright.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to FIGS. In other words, compared to the conventional lighting method, create a lighting fixture that changes the light distribution without changing the W (wattage) number of the lighting fixture, install it in the experimental living room, create a lighting environment, and conduct a psychological evaluation experiment. went. As a result, it became clear that the brightness of the entire space can be enhanced by changing the light distribution and securing the illuminance below the luminaire while illuminating the upper part of the ceiling and wall.
[0018]
Then, it has been found that in order to create such a lighting environment with a high sense of brightness by using one ceiling light, it is necessary to use a light distribution device protruding vertically downward and horizontally as shown in FIG. A (cd) is the maximum luminous intensity in the range of the vertical angle from −60 ° to 60 °, and B₁(Cd) is the maximum luminous intensity in the range of a vertical angle of −120 ° to −60 °, B₂(Cd) is the maximum luminous intensity in the range of a vertical angle of 60 ° to 120 °.
[0019]
The details of the experiment are as follows. FIG. 4 shows one type of conventional ceiling light used in the experiment, and FIGS. 2 and 3 show two types of prototype ceiling light with improved light distribution. In any of the lighting fixtures, the lamp was 72 W (annular fluorescent lamp 40 W + 32 W), and both color temperatures of 3000 K (lamp L) and 5000 K (lamp N) were used. The instrument of FIG. 4 (referred to as instrument 3) is the same as that of FIG. The appliance of FIG. 3 (referred to as appliance 2) is made so that the milky glove 1 is shallower than that of FIG. 4 so that the upper annular fluorescent lamp 4 is exposed between the upper end opening 2 and the ceiling 3. Reference numeral 5 denotes an instrument body, and 6 denotes a lower fluorescent lamp. The instrument of FIG. 2 (referred to as instrument 1) is further provided with a first reflector 7, a second reflector 8, and a third reflector 9 in the structure of FIG. Both FIG. 2 and FIG. 3 show the light distribution that protrudes vertically downward and in the horizontal direction, and has a recessed range of about 60 ° to 70 ° and about −60 ° to −70 ° therebetween.
[0020]
These lighting fixtures were installed in an experimental 8-tatami living room for comparative evaluation.
[0021]
As can be seen from the luminance distribution diagram of FIG. 5, the prototype devices 1 and 2 shown in FIGS. (A) and (b) with improved light distribution compared to the conventional standard device 3 of FIG. The ceiling and the upper part of the wall are bright. In particular, the tendency appears strongly in the type of the instrument 1 in FIG. Here, as shown in the scale table of FIG. 5D, the region 11 has a luminous intensity range of about 200 to 2000 cd, the region 12 has a range of about 30 to 200 cd, the region 13 has a range of about 20 to 30 cd, and the region 14 has The range is about 15-20 cd, the region 15 is about 10-15 cd, and the region 16 is about 10 cd or less.
[0022]
The result of the experiment is shown in FIG. That is, there is a slightly significant difference in the impression evaluation of the space such as a sense of brightness, a sense of security, a sense of openness, and a preference according to the SD method (semantic differential technique) in FIGS. 6B and 6C. The illumination space with the prototypes 1 and 2 with improved light distribution is a little better than the standard fixture 3. At least the impression of the illumination space by the prototypes 1 and 2 with improved light distribution is not inferior. Fig. (B) shows the case of lamp N, and Fig. (C) shows the case of lamp L, which is the average value of six subjects.
[0023]
Furthermore, for the evaluation of the feeling of brightness by the ME method (magnitude estimation method) in FIG. 6A, the evaluation of the illumination space using the prototypes 1 and 2 with improved light distribution over the standard 3 standard is better. Thus, it can be seen that the prototype device 1 is about 1.25 times as bright as the standard device 3. The figure (a) is an average value by six subjects of a feeling of brightness in comparison with the instrument 1.
[0024]
As described above, the prototype devices 1 and 2 that improve the light distribution from the luminance distribution shown in FIG. 5 as compared with the conventional standard device 3 have high brightness on the ceiling surface and the upper surface of the wall surface of the living room. This is considered to be a factor of the result mentioned above.
[0025]
Considering this experimental result, the average luminance of the ceiling surface of the room space is 30 cd / m²If the vertical surface illuminance in the region from the ceiling surface of the room space to 1.5 m above the floor is 200 (lx) or more on the wall surface surrounding the room space, it is more than the conventional lighting method. Judged to feel bright. Further, in order to create such a bright lighting environment with a single lighting device for each room, not only the lower side of the lighting device but also the lateral direction (vertical angle −120 ° to −60 with the vertical downward direction being 0 ° vertical angle). Also, it is necessary to actively irradiate in the range of 60 ° to 120 °.
[0026]
Therefore, the present invention has the following configuration for an indoor lighting method and an indoor lighting fixture that realize energy saving and make the room space feel bright.
[0027]
(1) The average brightness of the ceiling surface of the room space is at least 30 c / m²The vertical surface illuminance in the region from the ceiling surface of the room space to 1.5 m above the floor is at least 200 (lx) or more on at least one of the wall surfaces surrounding the room space. It is the illumination method of the structure which becomes.
[0028]
Further, the maximum luminous intensity Acd in the range of the vertical angle −60 ° to 60 °, and the maximum luminous intensity B in the range of the vertical angle −120 ° to −60 °.₁cd, maximum luminous intensity B in the range of vertical angle 60 ° to 120 °₂cd (vertical downward direction is vertical angle 0 °),
(2) A lighting method having a shape as shown in FIG. 1 and having a light intensity satisfying the following conditions, or a lighting method having a configuration in which the fixture is installed around the center of the ceiling surface of the room space.
[0029]
Bl≈B2 ≧ 0.5 × A
As a result, the brightness of the space is improved.
[0030]
(3) A lighting apparatus having the above-described configuration (2) having a luminous intensity that satisfies the following conditions, or a lighting method using the apparatus.
[0031]
A ≧ B1≈B2 ≧ 0.5 × A
As a result, the brightness of the space is improved and the illuminance just below the appliance is secured.
[0032]
(4) The lighting apparatus having the above-described configuration (2) having a luminous intensity that satisfies the following conditions, or a lighting method using the apparatus.
[0033]
A ≒ Bl ≒ B2
As a result, the brightness of the space is improved, the illuminance just below the appliance is secured, and the lighting balance of the entire room space is good.
[0034]
(5) As shown in FIG. 7 to FIG. 15, the lighting fixture has a light distribution that projects in a direction directly below the fixture and in the horizontal direction.
[0035]
In each of the instruments shown in FIGS. 8 to 15, each instrument basically targets light distribution as shown in the in-room irradiation image diagram shown in FIG. 7. That is, while suppressing the amount of light in the angle range 70a of FIG. 7 and reducing glare in the line-of-sight direction, the angle ranges 70b and 70c, that is, brighten vertically in the appliance and in the horizontal direction, thereby realizing an increase in brightness. For realizing this, for example, an instrument capable of obtaining the light distribution shown in FIG.
[0036]
FIG. 8A shows an example 1 of the instrument, which is a basic reflector of the examples 2, 3, and 4 of the reflector. As shown in FIG. 9 is composed. Although these reflecting plates 7-9 are represented by the cross section, it is the shape rotated with respect to the central axis of the vertical direction of an instrument. The reflector 7 on the upper part of the fixture serves to fly the light emitted upward from the light source (ring-shaped fluorescent lamps 4 and 6) in the lateral direction, and the light entering at a deep angle with respect to the reflector 7 is a light guide plate 7a (enlarged). (Shown in the figure). The reflector 8 at the lower part of the instrument serves to divide the light from the light source (4, 6) in the lower and lateral directions of the instrument, and a light guide plate may be used. The reflector 9 at the center of the instrument serves to positively blow off the light at the center of the instrument.
[0037]
Device example 3 in FIG. 9 (a) completely covers the device of device example 1 with milky glove 1, is good in terms of light distribution, and the space is slightly dark, but glare is suppressed. The instrument example 4 of FIG. 9B provides a gap at the top of the milky glove 1 and actively emits light in the horizontal direction from the gap to illuminate the ceiling surface and wall surface more brightly. Device example 2 fills the gap in the upper part of the milky white glove with the material 20 that is permeable to the device example 4 to prevent dust and the like from entering the device. The light is actively emitted from the transparent part of the globe 1 in the horizontal direction. Moreover, in the example 2 of an instrument, since the reflector 8 of the lower part of the instrument is fixed to the inner surface of the globe 1 and can be detached from the instrument body 5 together with the globe 1, the instrument can be easily handled (such as lamp replacement). .
[0038]
The appliances 5 and 6 shown in FIG. 10 are types in which the reflectors 7 to 9 of the appliance example 1 are simplified. In the example 5 of an instrument, it is comprised by the reflecting plates 7 and 21, and it is diagonally (about 45 degrees or less with respect to the horizontal) reflecting plate 21 provided between the two annular fluorescent lamps 4 and 6 in the downward direction and the lateral direction of the instrument. The light is divided and actively blown. In the example 6 of the instrument, the reflectors 8 and 22 are configured, and the reflector 22 at the upper part of the instrument serves to enter the center of the annular fluorescent lamp 4 and emit light in the lateral direction. It serves to divide the light downward and laterally of the instrument.
[0039]
An instrument example 7 shown in FIG. 11A corresponds to FIG. 3 and simply realizes light distribution that enhances the feeling of brightness. There is no reflectors 7 to 9 and a gap is provided in the upper part of the globe 1. Is. The light distribution tends to be good and the space is bright. Although not as effective as when the reflectors 7 to 9 are used, it is easy to realize. An instrument example 8 shown in FIGS. 11B and 11C is a glareless type without a milky white glove, and a louver portion 24 using a reflector 7 at the top of the instrument, a conical reflector 23 at the center, and a ring-shaped flat plate. It consists of The louver portion 24 cuts glare of the light source while emitting light to the ceiling surface / lateral direction. The other reflectors 7 and 23 serve to blow light downward and laterally of the instrument.
[0040]
Instrument examples 9, 10, and 11 shown in FIG. 12 are types in which two types of light sources are combined. In any case, for example, the light source 31 using a ring-shaped fluorescent lamp mainly irradiates the central part of the room directly below the appliance, and the light source 32 using, for example, a bean ball or a spotlight mainly irradiates the ceiling surface and the upper part of the wall surface. The instrument example 9 has a built-in light source 32 and divides light into a downward direction and a lateral direction by the reflecting plate 8 provided inside the globe 1. The light source 32 is installed on the peripheral side surface of the instrument body 5. In the instrument examples 10 and 11, the light source 32 is installed outside the globe 1, and in the instrument example 10, the reflector 33 hinged adjacent to the light source 32 is angle-adjusted according to the room size. The angle of the hinged light source 32 itself is adjusted according to the room size, and an arbitrary direction is irradiated.
[0041]
The fixtures 12, 13, and 14 shown in FIG. 13 have a rotating plate reflecting plate 34 that is a type of light distribution that places importance on the horizontal direction and that actively irradiates the horizontal direction. Device example 13 covers the entire device with milky glove 1, and device example 12 provides a gap at the top of milky glove 1 and is more effective. The instrument example 14 is a pendant type instrument that actively irradiates the ceiling surface and the lateral direction by the gap between the globe 1 and the reflector 34.
[0042]
14 (a) and 14 (b) show examples 15 and 16 of the instrument, in which the light source inside the instrument glove 1 is divided by an off-white matte reflector 36 or a specular reflector 36 'to illuminate in the lateral direction. The roles are shared such as a light source that emits light and a light source that irradiates downward. The fixture of fixture example 15 uses two light sources of the same type, for example, annular fluorescent lamps 4 and 6, and the fixture of fixture example 16 uses two different light sources, for example, annular fluorescent lamp 4 and incandescent bulb 37.
[0043]
The instrument of the instrument example 17 of FIG.14 (c) uses the mirror surface type reflecting plate 38 and the half mirror 39 (semi-mirror surface transparent plate) for the reflecting plate which scatters light to an instrument downward direction and a horizontal direction. In this instrument, the lower half of the reflecting plate 38 is a half mirror 39, so that the transmitted light reaches the lower direction while emitting light in the ceiling surface / lateral direction.
[0044]
The instrument example 18 in FIG. 15 is a pendant-type instrument using a translucent louver 41. As shown in the figure (b), the milky white panel 40 is installed in the shape of a louver by the connecting member 43 around the instrument. Since it is the semi-transparent louver 41, the light extends downward, and the reflected light extends in the ceiling surface / lateral direction due to the shape of the louver extending upward. Reference numeral 42 denotes an incandescent light bulb.
[0045]
FIGS. 16A and 16B are examples of a high-brightness lighting technique. The lighting fixture 50 shown above is arranged around the center of the ceiling surface of the room space, and the above-described (1) to (4). Realized lighting environment.
[0046]
In the system example 1 shown in FIGS. 16 (c) and 16 (d), in addition to the main lighting by the lighting fixture 50, a lighting fixture 51 that actively irradiates the wall surface in the vicinity of the wall surface is arranged in order to make the whole room feel bright. The illumination environment of the above (1) to (4) is realized. In this case, the luminaire 50 may have a lower output than the conventional luminaire with one lamp per room. In addition, you may implement | achieve the illumination environment of said (1)-(4) only with the lighting fixture 51 arrange | positioned in the wall surface vicinity.
[0047]
The system example 2 shown in FIGS. 16E and 16F is the same as the system example 1, but the system example 1 is provided with an instrument 51 that irradiates the upper part of the wall surface to make the whole room feel bright on the four sides of the ceiling. In order to obtain the same effect as that of the system example 1, the system example 2 is provided with an instrument 52 for irradiating the upper part of the wall surface in a vertically placed manner at the corner of the wall surface.
[0048]
An instrument example 19 shown in FIG. 17 is an instrument 55 for illuminating the wall surface. For example, the upper surface of the wall surface is illuminated by the reflector 56 on the instrument rear surface of the light source 60 using a straight tube fluorescent lamp, and the ceiling surface is also illuminated. Brighten the corners. The front of the instrument can be illuminated by installing a glove 57 such as milk white through the connecting member 61 on the front surface of the reflector 56. However, for example, a mirror-type reflector can irradiate the wall and ceiling more efficiently. can do. In the case of such an appliance, there is a possibility of realizing the illumination environment described in (1) to (4) above without installing the conventional ceiling light 62 or the like in the vicinity of the center of the room. .
[0049]
【The invention's effect】
  Claim 1lighting equipmentAccording toIt is possible to actively illuminate the horizontal direction as well as the vertical direction of the luminaire. In this way, by illuminating the ceiling surface and wall surface while ensuring the illuminance below the lighting fixture, the entire illuminated room space can be felt bright and the brightness can be improved. Furthermore, this lighting environment can be realized with one lighting device for one room space.
[0050]
  According to the lighting fixture of claim 2,In addition to the effect of the first aspect, light entering at a deep angle with respect to the first reflector can also be reflected laterally by the light guide plate..
[0051]
  According to the lighting fixture of claim 3,In addition to the effects similar to those of the first or second aspect, the glove can prevent dust and the like from entering the instrument and can actively emit light laterally from the permeable part of the glove.
[0052]
  According to the lighting fixture of claim 4,In addition to the same effect as that of the third aspect, the second reflector can be separated from the annular lamp by removing the globe, so that the lamp can be easily replaced.
[0053]
  According to the lighting fixture of claim 5,Light distribution in the lateral direction and the downward direction can be realized with a simplified reflector.
According to the lighting fixture of Claim 6, light distribution to a horizontal direction and a downward direction is realizable with the simplified reflecting plate.
According to the lighting apparatus of the seventh aspect, the same effect as that of the first aspect can be obtained.
According to the lighting apparatus of the eighth aspect, the same effect as that of the first aspect can be obtained.
According to the lighting fixture of Claim 9, a horizontal direction and the downward direction can be illuminated.
According to the lighting device of the tenth aspect, the lateral direction and the lower side can be illuminated.
According to the lighting apparatus of the eleventh aspect, it is possible to illuminate the lateral direction and the lower side.
According to the lighting fixture of Claim 12, there exists an effect similar to Claim 9.
According to the lighting fixture of Claim 13, there exists an effect similar to Claim 9.
According to the illuminating device of the fourteenth aspect, there is an effect similar to that of the first aspect.
According to the lighting fixture of the fifteenth aspect, the upper part of the wall surface is irradiated by the back reflector, and the ceiling surface is also irradiated, so that the corners of the room can be brightened and the whole room can be felt bright.
[Brief description of the drawings]
FIG. 1 is a light distribution curve diagram illustrating one embodiment of the present invention.
FIGS. 2A and 2B show a prototype instrument 1 with improved light distribution used in the experiment, in which FIG. 2A is a perspective view, FIG. 2B is a cross-sectional view, and FIG.
FIGS. 3A and 3B show another prototype device 2 with improved light distribution used in the experiment, where FIG. 3A is a perspective view, FIG. 3B is a cross-sectional view, and FIG. 3C is a light distribution curve diagram.
4A and 4B show a conventional standard instrument used in the experiment, in which FIG. 4A is a perspective view, FIG. 4B is a sectional view, and FIG. 4C is a light distribution curve diagram.
5A is a luminance distribution diagram of the appliance 1, FIG. 5B is a luminance distribution diagram of the appliance 1, and FIG. 5C is a conventional luminance distribution diagram.
6A is a brightness evaluation graph by ME method, FIG. 6B is an impression evaluation diagram of lamp N by SD method, and FIG. 6C is an impression evaluation diagram of lamp L by SD method.
FIG. 7 is a sectional view of a room for explaining an in-room lighting image.
8A is a cross-sectional view of the device example 1, FIG. 8B is a cross-sectional view of the device example 2, and FIG. 8C is a cross-sectional view of the glove 1;
9A is a cross-sectional view of the device example 3, and FIG. 9B is a cross-sectional view of the device example 4. FIG.
10A is a cross-sectional view of an instrument example 5, and FIG. 10B is a cross-sectional view of the instrument example 6. FIG.
11A is a cross-sectional view of an instrument example 7, FIG. 11B is a cross-sectional view of the instrument example 8, and FIG. 11C is a perspective view of the louver portion thereof.
12A is a cross-sectional view of an instrument example 9, FIG. 12B is a cross-sectional view of the instrument example 10, and FIG. 12C is a cross-sectional view of the instrument example 11. FIGS.
13A is a cross-sectional view of an instrument example 12, FIG. 13B is a cross-sectional view of the instrument example 13, and FIG. 13C is a cross-sectional view of the instrument example 14;
14A is a sectional view of an instrument example 15, FIG. 14B is a sectional view of the instrument example 16, and FIG. 14C is a sectional view of the instrument example 17;
15A is a sectional view of an instrument example 18, and FIG. 15B is an external perspective view thereof.
FIG. 16A is a perspective view of the interior of a room in which an illuminating device is installed in the center of the ceiling, FIG. 16B is a plan view of the ceiling, and FIG. 16C is an illuminating device installed in the center and wall surface of the ceiling. (D) is a plan view of the ceiling, (e) is a perspective view of the interior of the room of the example in which lighting fixtures are installed at the center of the ceiling and the wall corner, and (d) is the perspective view thereof. It is a top view of a ceiling.
17A is a perspective view of an appliance arranged at a corner of a ceiling of an appliance example 19, and FIG. 17B is a partial sectional view of a ceiling portion in the room.
18A and 18B show a conventional lighting apparatus, where FIG. 18A is a cross-sectional view and FIG. 18B is a light distribution curve thereof.
FIGS. 19A and 19B show another conventional lighting device, in which FIG. 19A is an external perspective view, FIG. 19B is a light distribution curve thereof, FIG. 19C is an external perspective view of another lighting device, and FIG. Light curve.
FIGS. 20A and 20B show another conventional lighting device, in which FIG. 20A is an external perspective view, FIG. 20B is a light distribution curve thereof, FIG. 20C is an external perspective view of another lighting device, and FIG. Light curve.
FIG. 21 shows another conventional lighting fixture, (a) is an external perspective view, (b) is its light distribution curve, (c) is an external perspective view of another lighting fixture, and (d) is its arrangement. Light curve.
[Explanation of symbols]
1 Globe
2 opening
3 Ceiling
4 ring fluorescent lamp
5 Instrument body
6 Ring-type fluorescent lamp

Claims (14)

A ring-shaped lamp in a horizontal position, a ring-shaped first reflector that is disposed above the ring lamp and reflects light emitted upward from the ring lamp in a lateral direction, and disposed below the ring lamp. A ring-shaped second reflecting plate that reflects the lamp light downward and laterally, and a third reflecting plate that is disposed inside the annular lamp and reflects the lamp light downward. The lighting fixture according to claim 1, further comprising a wave-shaped light guide plate that emits light incident in a lateral direction from a direction perpendicular to the first reflective plate on a center side of the ring-shaped first reflective plate. Said ring-shaped lamp, wherein the first reflector has a milky globe that covers these lower and having a second reflector and the third fixture body which supports the reflector of the peripheral edge of the milky white globe The lighting fixture of Claim 1 or Claim 2 which covered between the peripheral part of the said fixture main body with the translucent member. The lighting fixture according to claim 3, wherein the second reflector is fixed to the milky glove. An upper annular lamp in a horizontal posture; a lower annular lamp disposed coaxially and parallel to the lower side of the upper annular lamp; and the upper annular lamp disposed above the upper annular lamp A ring-shaped lateral reflector that reflects light emitted upward from the lateral direction, and the lamp light of the upper annular lamp located between the upper annular lamp and the lower annular lamp in the lateral direction And a ring-shaped dividing reflector that is inclined so as to reflect downward and reflect the lamp light of the lower annular lamp downward. A ring lamp in a horizontal position, a reflector that enters the inside of the ring lamp and reflects the lamp light in the lateral direction, and is disposed below the ring lamp to transmit the lamp light of the ring lamp in the lateral direction and the downward direction. A luminaire comprising a ring-shaped split reflector that reflects. A ring-shaped lamp in a horizontal position, a ring-shaped upper reflecting plate disposed on the upper side of the ring-shaped lamp to reflect light emitted upward from the ring-shaped lamp, and lamp light disposed on the inner side of the ring-shaped lamp. And a louver using a ring-shaped flat plate that is arranged so that the annular lamp is located on the inside and reflects the lamp light in the ceiling surface and in the lateral direction. A horizontal appliance body having a plurality of light sources arranged on the peripheral side surface, an annular lamp arranged in parallel to the appliance body below the instrument body, and the annular lamp so that the annular lamp is on the inside And a ring-shaped reflecting plate that is coaxially arranged and reflects light downward and laterally. An instrument body having an annular lamp, a globe attached to the instrument body and covering the annular lamp, a light source installed on a peripheral side surface of the instrument body on the outer periphery of the globe, and a hinge attached adjacent to the light source And an angle-adjustable reflector that reflects the light of the light source. An illumination fixture comprising: a fixture body having an annular lamp; a globe attached to the fixture body to cover the annular lamp; and a light source hinged to a peripheral side surface of the fixture body on the outer periphery of the globe. A lighting fixture comprising: two light sources juxtaposed vertically; and a reflector that is interposed between the two light sources and irradiates the horizontal direction with the upper light source and irradiates the lower direction with the lower light source . A circular lamp having a horizontal posture, and a cylindrical plate having a concave peripheral surface, and the circular lamp is fitted on the peripheral surface and reflects lamp light downward and laterally, and the reflective plate Is a lighting fixture whose lower half is a half mirror . An illuminating device comprising a light source and a louver composed of a plurality of inverted cap-shaped louver pieces surrounding the light source and arranged in the vertical direction, wherein the upper louver piece has a larger upper end diameter . A straight tube light source arranged in parallel along the corner of the ceiling surface and the wall surface, and a back reflector that illuminates the ceiling surface and the upper portion of the wall surface, arranged on the corner side that is the back side of the light source; A lighting fixture comprising a globe or a reflector that is attached to the reflector via a connecting member and is positioned on the front side of the light source .

Images