JP4023071B2 - lighting equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lighting fixture such as a fluorescent lamp.
[0002]
[Prior art]
In facilities such as hospitals and health care facilities for the elderly, the equipment attached to the upper part of the bed is uncomfortable because of high brightness because the lamp light can be seen directly from the eyes of the viewer.
[0003]
In order to solve this, there are a lighting fixture with a panel, an indirect lighting fixture, and the like, but there is no appropriate product in the lighting fixture with a louver.
[0004]
[Problems to be solved by the invention]
In the case of a louvered luminaire, in order to prevent direct light from being seen from the patient's line of sight, that is, to have a deep shading angle, the pitch of the louver is reduced to increase the size of the louver, Although it is conceivable to increase the thickness, all of them have the disadvantage that the cost is increased and the efficiency of the instrument is deteriorated.
[0005]
Accordingly, an object of the present invention is to provide a luminaire capable of reducing unpleasant glare (brightness) from a patient's eyes in a louvered luminaire.
[0006]
[Means for Solving the Problems]
The lighting fixture according to claim 1 includes a light source, a fixture main body having a light-guiding opening that houses the light source and emits light of the light source, and a louver provided in the light-guiding opening. A main louver disposed at a predetermined interval at substantially the same height, and a sub louver provided between the main louvers , wherein the sub louver is lower than a height of the main louver, and a lower end of the sub louver is the main louver upwardly Do Ri lower end of, and located at the upper end and the auxiliary louver upper end substantially equal to the height from each other in the main louver, further said that sub louvers to form a deep light shielding angle in one direction of the arrangement In addition, the sub louvers are arranged offset to one side of the main louvers facing each other .
[0007]
According to the lighting apparatus of claim 1, when a person lies down below the apparatus and looks up at the apparatus, a deep shading angle is obtained by the auxiliary louver, and the direct light of the lamp is not visible, so no glare is felt, Since the distance between the main louvers can be secured widely and the height of the main louver can be kept low, the cost can be reduced and the instrument efficiency can be improved over the instrument efficiency when there is no secondary louver.
In addition, the upper ends of the main louver and the sub louver are located at substantially the same height as each other, and the sub louver is arranged at one side of the main louver facing each other, so that a person lies down and looks up at the instrument. When standing up and looking up at the instrument, only the main louver can be seen and the secondary louver can not be seen, so it is neatly designed and can be used without any sense of incongruity because it looks right and left and symmetrical.
[0010]
According to a second aspect of the present invention, there is provided the lighting apparatus according to the first aspect , wherein the light source is a one-piece lamp, the light source and its lamp socket are aligned in an alignment direction of the main louver and the sub louver, and the lamp socket side is the main socket. It is arrange | positioned so that it may become a non-adjacent side of a louver and the said sublouver.
[0011]
According to the lighting device according to claim 2, wherein, in addition to the same effects as the second aspect, the lamp socket is instrument body because no light is dark, the louvers in the vicinity thereof has sub-louver leaves, large louver opening Therefore, light can be emitted almost uniformly from any louver opening, and the luminance unevenness between the louvers is small.
[0012]
According to a third aspect of the present invention, there is provided a lighting fixture according to the first aspect, wherein a cross louver having a height equal to the main louver is arranged in a direction orthogonal to the main louver.
[0013]
According to the lighting apparatus of the third aspect, the same effect as in the first aspect can be obtained.
[0014]
The lighting apparatus according to claim 4 can be attached to the apparatus main body in an inverted state in which the louver is rotated by 180 ° around an opening direction axis of the light-guiding opening according to claim 1, 2, or 3 . Is something.
[0015]
According to the lighting fixture of claim 4 , in addition to the same effect as in claim 1, claim 2 or claim 3 , if the light shielding angle is the same in both directions, it can be attached in any direction after construction, When the light shielding angles are different in the two directions, the louver mounting direction can be changed as appropriate according to the orientation of the bed after construction.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
A first embodiment of the present invention will be described with reference to FIGS. That is, this lighting fixture has a light source 1, a fixture body 2, and a louver 3.
[0017]
The light source 1 uses a single-cap lamp such as a single-cap fluorescent lamp, and is mounted on each of the two lamp sockets 4. 11 is a bean lamp and 12 is the lamp socket.
[0018]
The instrument body 2 has a light-guiding opening 5 that houses the light source 1 and emits light from the light source 1. In the embodiment, it is an embedded type that is embedded in the embedded hole 7 of the ceiling 6, has a substantially rectangular parallelepiped box shape, and the lower surface is the light-guiding opening 5. A magic spring 16 is attached to one opposite side of the instrument body 2, and the frame portion 17 is lifted by the magic spring 16 so that the frame portion 17 can be lowered and disengaged. Locked. Each lamp socket 4 is mounted near the top of the other facing side, and the light source 1 mounted on the lamp socket 4 is mounted horizontally such that the tip approaches the other side of the instrument body 1. The lamp socket 4 may be attached to the top. The lamp socket 12 is attached to the center of the top. In addition, a reflector 13 is attached so as to be located on the back surface of the light source 1, that is, on the upper side and both sides.
[0019]
The louver 3 is provided in the light guide opening 5. The louver 3 includes a plurality of main louvers 8 arranged at a predetermined interval at substantially the same height, and a sub louver 9 provided between the main louvers 8 and lower than the main louver 8. The lower end of the main louver 8 is disposed above the lower end of the main louver 8. Further, the upper ends of the main louver 8 and the sub louver 9 are located at substantially the same height on the side where the light source 1 is located, and the sub louver 9 is located on one side of the main louver 8 facing each other as shown in FIG. They are offset and arranged parallel to each other. In addition, the lamp socket 4 side of the light source 1 is arranged so that the main louver 8 and the sub louver 9 are not adjacent to each other with respect to the arrangement direction of the light source 1 and the lamp socket 4. Further, as shown in FIG. 2, an intersecting louver 10 having a height equal to that of the main louver 8 is arranged in a direction orthogonal to the main louver 8. The main louver 8, the sub louver 9 and the intersecting louver 10 are each equal in height and take a vertical posture. These louvers are integrally attached to the frame portion 17, and are constituted by an outer frame 20 that also serves as the main louver 8 at the end, a main louver 8 that is held by the outer frame 20, and a sub louver 9. Since the frame portion 17 is detachably attached by the magic spring 16, the frame portion 17 is detachably attached to the light-guiding opening 5 of the instrument main body 2 and around the opening direction axis of the light-guiding opening 5. It can be mounted in the inverted state rotated 180 °. The frame portion 17 and the outer frame 20 are made of wood, but can be made of plastic or metal. The same material can be used for the main louver 8, the sub louver 9, and the cross louver 10.
[0020]
In the figure, L ₁ is the distance between the side wall of the outer frame 20 and the main louver 8 facing it, L ₂ is the distance between the main louvers 8, and L ₃ is the side wall of the outer frame 20 opposite to the side and the main side facing it. This is the distance from the louver 8, and L ₁ = L ₂ = L ₃ as described above. L ₄ is the distance between the main louver 8 and the approaching sub louver 9, and L ₅ is the distance between the sub louver 9 and one side wall of the outer frame 20 opposite to the main louver 8. ₄ <is L _5. L is equal to each other in the distance between the both side walls of the frame portion 17 and the intersecting louver 10 and the distance between the intersecting louvers 10, and L ₁ = L. θ is a light shielding angle with respect to the lamp axis, and is about 68 °, for example, and is equal to each main louver 8 and sub louver 9. However, the light shielding angle (not shown) in the opposite direction is equal to the light shielding angle by the main louver 8 as is apparent from the figure.
[0021]
FIG. 3 is an example used for the ceiling of the hospital room 23. The mounting position of the luminaire is substantially above the base 22a of the foot of the patient 22 with the patient lying on the bed. As a result, when the light shielding angle is set to 68 °, the light of the light source 1 does not enter the eyes of the patient 22 directly.
[0022]
According to this embodiment, when a person lies down below the instrument and looks up at the instrument, a deep light shielding angle θ is obtained by the auxiliary louver 9, and the direct light of the light source 1 is not visible, so no glare is felt, Since the interval between the main louvers 8 can be secured widely and the height of the main louver 8 can be kept low, the cost can be reduced, and the instrument efficiency can be improved over the instrument efficiency when the auxiliary louver 9 is not provided.
[0023]
In this respect, when the sub louver 9 is not provided, a necessary light shielding angle is obtained, so that the pitch of the main louver 8 needs to be narrowed, so that the number of eyes is increased, and the height of the main louver 8 is also increased.
[0024]
On the other hand, when a person lies down instead of looking up at the equipment, only the main louver 8 can be seen and the secondary louver 9 can not be seen, so the design is neat and looks left-right and front-back symmetrical. Can be used without a sense of incongruity.
[0025]
Since the lamp socket 4 does not emit light, the instrument body 2 becomes dark. However, the louver in the vicinity of the lamp socket 4 is separated from the sub louver 9 and has a large louver opening, so that light is emitted almost uniformly from any louver opening. The luminance unevenness of the louvers is small.
[0026]
Furthermore, since the light shielding angle θ is different in the two directions, the louver mounting direction can be appropriately changed according to the orientation of the bed 21. In addition, when the configuration is such that the light shielding angle θ is the same in both directions, for example, L ₄ = L ₅ , attachment in any direction is possible.
[0027]
A second embodiment of the present invention is shown in FIGS. This is because in the first embodiment, the height of the auxiliary louvers 9a to 9c is such that a shielding angle that blocks direct light from the light source 1 from an imaginary point A below the instrument, for example, near the eyes of the patient 22, can be secured. Is gradually lowered from the lamp socket 4 side to the non-lamp socket side. That is, when the height of each sub louver 9 is sequentially set to L ₆ , L ₇ , L ₈ from the sub louver 9 c on the front end side of the light source 1 to the sub louver 9 a on the lamp socket 4 side, L ₆ <L ₇ <L ₈ . . If it does in this way, it will become the form which the light ray of the light-shielding angle by each sublouver 9 converged to A point, as shown in FIG. Other configurations are the same as those of the first embodiment.
[0028]
A third embodiment of the present invention is shown in FIG. This is obtained by removing the cross louver 10 in the first embodiment, and the same reference numerals are given to the common parts.
[0029]
【The invention's effect】
According to the lighting apparatus of claim 1, when a person lies down below the apparatus and looks up at the apparatus, a deep shading angle is obtained by the auxiliary louver, and the direct light of the lamp is not visible, so no glare is felt, Since the distance between the main louvers can be secured widely and the height of the main louver can be kept low, the cost can be reduced and the instrument efficiency can be improved over the instrument efficiency when there is no secondary louver.
[0030]
In addition, when a person lays down and looks up at a device instead of looking up at the device, only the main louver can be seen and the secondary louver can not be seen. Can be used.
[0031]
According to the lighting fixture of claim 2 , in addition to the same effect as in claim 1 , the lamp socket does not emit light and the fixture main body becomes dark. However, the louver in the vicinity thereof is separated from the secondary louver and has a large opening. Therefore, light can be emitted almost uniformly from any louver opening, and luminance unevenness among the louvers is small.
[0032]
According to the lighting apparatus of the third aspect, the same effect as in the first aspect can be obtained.
[0033]
According to the lighting fixture of claim 4 , in addition to the same effect as in claim 1, claim 2 or claim 3 , if the light shielding angle is the same in both directions, it can be attached in any direction after construction, When the light shielding angles are different in the two directions, the louver mounting direction can be appropriately changed according to the orientation of the bed after construction.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a first embodiment of the present invention.
FIG. 2 is a longitudinal sectional view of FIG.
FIG. 3 is a side view of the bed in use as seen from the side.
FIG. 4 is a cross-sectional view of a second embodiment.
FIG. 5 is a side view of the bed in use as seen from the side.
6A and 6B show a third embodiment, in which FIG. 6A is a sectional view and FIG. 6B is a longitudinal sectional view thereof.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Light source 2 Instrument body 3 Louver 4 Lamp socket 5 Light-guiding opening 8 Main louver 9 Sub louver 10 Crossing louver

Claims (4)

A light source, an instrument body having a light-guiding opening that houses the light source and emits light from the light source, and a louver provided in the light-guiding opening, the louvers having substantially the same height and a predetermined interval And a sub louver provided between the main louvers , wherein the sub louver is lower than a height of the main louver, and a lower end of the sub louver is higher than a lower end of the main louver. The upper ends of the main louvers and the upper ends of the sub louvers are positioned at substantially the same height, and the sub louvers face each other so that the sub louvers form a deep light shielding angle in one direction of the arrangement. A luminaire placed on one side of the main louver . The light source is a single-piece lamp, and the light source and its lamp socket are arranged in the arrangement direction of the main louver and the sub louver, and the lamp socket side is arranged on the non-adjacent side of the main louver and the sub louver. lighting device according to claim 1, characterized in that the. Luminaires of the main claim 1, wherein the louver equal height cross louver is arranged in a direction orthogonal to the main louver. The lighting device according to claim 1, 2, or 3, wherein the louver can be attached to the device main body in an inverted state rotated by 180 ° about an opening direction axis of the light guide opening .

Images