JP4603339B2 - Lighting apparatus and lighting system using the same - Google Patents

Description

  The present invention relates to a lighting fixture and a lighting system using the same.

  Conventionally, multiple lighting fixtures with straight tube fluorescent lamps are used as the light source, and multiple lighting fixtures are arranged inside the building so that the fluorescent lamps of each lighting fixture are arranged in a row, and the ceiling and walls are There is provided an illumination system that illuminates (see, for example, Patent Document 1).

Here, when the fluorescent lamps are arranged in a line, the shadow of the socket portion is formed on the indirect light irradiated on the irradiated surface such as the ceiling or the wall, and it is partially dark. Therefore, as shown in FIGS. 7 (a) and 7 (b), a socket block 20 including a lamp socket 21 for mounting a straight tube fluorescent lamp La on an instrument body 10 fixed to a fixed surface; In the lighting fixture B in which the ballast 30 that holds the lighting circuit of the fluorescent lamp La is attached in the elongated case 31, the longitudinal direction of the case 31 and the longitudinal direction of the fluorescent lamp La are substantially parallel to the fixed surface. Conventionally, a crossing in a plane is proposed. Then, by using a plurality of such lighting fixtures B and arranging the lighting fixtures B so that the end portions in the longitudinal direction of the fluorescent lamps La overlap each other between the adjacent lighting fixtures, the socket portion becomes dark. Conventionally, a lighting system has been proposed in which the brightness uniformity of the irradiated surface is improved.
JP 2003-281902 A

  In the lighting system using the above-described lighting fixture, the longitudinal direction of the fluorescent lamp La is oblique with respect to the longitudinal direction of the ballast 30 in a plane substantially parallel to the fixed surface in order to avoid the socket portion from becoming dark. Since the socket block 20 and the ballast 30 are arranged so as to intersect with each other, the width direction of the lighting fixture B is shorter than that in the case where the ballast 30 and the fluorescent lamp La are arranged so that the longitudinal direction is substantially parallel. There was a problem that the dimension in the left and right direction in FIG. 7B was increased, and a large space was required to attach the lighting fixture B.

  Moreover, since the fluorescent lamp La is exposed in the above-described lighting fixture B, there is a problem that it takes time to wipe and clean the fluorescent lamp La. Moreover, since the instrument main body 10 is used by being installed on the surface to be fixed, and the fixing method is limited to one way, it cannot cope with various architectural lighting.

  The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a lighting device that has a high degree of brightness uniformity on the surface to be irradiated and requires a small space for mounting. And providing a lighting system using the same. In addition to the above object, an object of the invention of claim 3 is to provide a luminaire with reduced cleaning effort. Furthermore, an object of the invention of claim 6 is to provide a luminaire capable of realizing architectural lighting in accordance with the purpose of use in addition to the above-mentioned purpose.

In order to achieve the above object, the invention of claim 1 is directed to a lamp socket for mounting a straight fluorescent lamp, a ballast in which a lighting circuit for a fluorescent lamp is held in a vertically long case, and a fluorescent lamp. An instrument body for mounting and holding the lamp socket and the ballast on the main surface so that the longitudinal direction and the longitudinal direction of the ballast are parallel to each other so that one end side of the fluorescent lamp in the longitudinal direction is farther from the case than the other end side. In addition, the longitudinal direction of the fluorescent lamp and the longitudinal direction of the case intersect obliquely in the same plane, and the center position of the case in the longitudinal direction of the case is shifted to one end side with respect to the central position in the longitudinal direction of the fluorescent lamp. Thus, the lamp socket and the ballast are arranged.

  According to the present invention, the longitudinal direction of the fluorescent lamp and the longitudinal direction of the case are obliquely intersected in the same plane so that one end side in the longitudinal direction of the fluorescent lamp is farther from the case than the other end side. When the lighting fixtures are arranged side by side so that the ballasts are arranged in a row, the lighting fixtures can be arranged so that the end portions in the longitudinal direction of the fluorescent lamps overlap with each other. It is possible to prevent shadows from being partially darkened. Moreover, since the lamp socket and the ballast are arranged so that the center position of the case in the longitudinal direction of the case is shifted to one end side with respect to the center position in the longitudinal direction of the fluorescent lamp, the center position of the case is the fluorescent lamp. Compared with the case where the fluorescent lamp and ballast are arranged so as to be substantially the same position as the center position of the lamp, the portion where the fluorescent lamp and the ballast overlap in the direction of arrangement of the fluorescent lamp and the ballast (this direction is referred to as the short direction) The size of the lighting fixture in the short direction can be reduced, and the space required for mounting the lighting fixture can be reduced.

  According to a second aspect of the present invention, in the first aspect of the invention, there is provided a reflecting member that has heat shielding properties and reflects light emitted from one fluorescent lamp to one side in the arrangement direction of the fluorescent lamp and the ballast to the opposite side. It is characterized by.

  According to the present invention, the light irradiated from one side of the arrangement direction from the fluorescent lamp is reflected to the opposite side by the reflecting member. Therefore, the light from the fluorescent lamp is collected on the opposite side of the arrangement direction and irradiated in this direction. The amount of emitted light can be increased, and the uniformity of the brightness of the irradiated surface is improved. Further, the heat generation of the fluorescent lamp can be shielded by the reflecting member, and the heat of the fluorescent lamp can be prevented from conducting in the direction opposite to the direction in which light is desired to be irradiated.

  The invention of claim 3 is characterized in that, in the invention of claim 2, a translucent cover attached to the instrument body so as to surround the fluorescent lamp is provided, and a reflecting member is arranged inside the cover.

  According to this invention, since the fluorescent lamp is covered with the translucent cover, it is possible to prevent dust from adhering to the fluorescent lamp, and it is only necessary to wipe the cover at the time of cleaning. effective. Moreover, since the reflecting member is arranged inside the cover, the heat transmitted to the cover can be reduced by the reflecting member blocking the heat generated by the fluorescent lamp.

  According to a fourth aspect of the present invention, in the third aspect of the present invention, the cover is provided with holding means for integrally holding the reflecting member, and the cover can be mounted 180 degrees opposite to the longitudinal direction of the fluorescent lamp. The attachment means to provide is provided in the instrument main body.

  According to the present invention, since the cover holding the reflecting member can be attached in the opposite direction by 180 degrees by the attaching means, the reflecting direction by the reflecting member can be easily changed only by changing the attaching direction of the cover, and Since the reflecting member is disposed on the side opposite to the direction in which light is desired to be emitted, the side to be shielded by the reflecting member is not mistaken.

  According to a fifth aspect of the present invention, in the third or fourth aspect of the invention, the traveling direction of light irradiated from the fluorescent lamp in a direction substantially perpendicular to the arrangement direction on the inner side surface of the cover is substantially parallel to the arrangement direction and reflected. An uneven surface of the prism that is bent so as to approach the direction opposite to the member is formed.

  According to the present invention, the amount of light irradiated in the direction reflected by the reflecting member can be increased by bending the direction of light by the concave and convex surfaces of the prism formed on the inner side surface of the cover. There is an effect that the uniformity of the brightness is further improved. In addition, since the uneven surface of the prism is formed on the inner surface of the cover, the surface of the cover can be flattened and the surface can be easily cleaned.

  According to a sixth aspect of the present invention, in any one of the first to fifth aspects of the present invention, the instrument body protrudes in a direction substantially perpendicular to the main portion of the plate-like main portion to which the lamp socket and the ballast are attached. And an insertion hole through which a fixing screw for screwing the instrument main body to the fixed surface is provided in the main portion and the side portion.

  According to the present invention, by using the fixing screw that is fixed and fixed so that the surface of the main part to which the lamp socket and the ballast are attached is vertically upward, or passed through the insertion hole of the main part so as to be vertically downward. Choose from multiple methods to fix the fixture body, such as by screwing it to the underside of furniture or screwing it to the ceiling surface using a fixing screw passed through the side insertion hole so that it faces horizontally. It is possible to achieve architectural lighting suitable for the purpose of use.

  A seventh aspect of the present invention provides the device main body according to any one of the first to sixth aspects, wherein connection terminals for connecting a power supply line for supplying a commercial power source to the lighting circuit are provided on both sides of the case in the longitudinal direction of the case. It is characterized by having arranged each.

  According to the present invention, since the connection terminals for connecting the power supply lines are respectively arranged on both sides in the longitudinal direction of the case in the fixture body, a plurality of lighting fixtures are arranged so that the ballasts are arranged in a line. In such a case, there is an effect that the wiring work of the feeder line can be easily performed by feeding and wiring to a plurality of lighting fixtures, with one connection terminal used for power connection and the other connection terminal used for feed wiring.

  The invention of claim 8 comprises a plurality of the lighting fixtures according to any one of claims 1 to 7, wherein the longitudinal directions of the cases of the lighting fixtures are aligned on the same straight line, and between the neighboring lighting fixtures. The lighting fixtures are arranged so that the ends in the longitudinal direction of the fluorescent lamps overlap each other.

  According to the present invention, in each lighting fixture, the longitudinal direction of the fluorescent lamp and the longitudinal direction of the case are obliquely intersected in the same plane so that one end side in the longitudinal direction of the fluorescent lamp is farther from the case than the other end side. Therefore, when multiple lighting fixtures are arranged side by side so that the ballasts are arranged in a line, the lighting fixtures are arranged so that the end portions in the longitudinal direction of the fluorescent lamps overlap each other between the adjacent lighting fixtures. It is possible to realize an illumination system in which the shadow of the lamp socket is made and partial darkening is prevented. Further, in each lighting fixture, the lamp socket and the ballast are arranged so that the center position of the case in the longitudinal direction of the case is shifted to one end side with respect to the center position in the longitudinal direction of the fluorescent lamp. Compared to the case where the center position is approximately the same as the center position of the fluorescent lamp, the size where the case and the fluorescent lamp overlap in the short direction can be increased to reduce the short dimension of the lighting fixture. In addition, it is possible to realize an illumination system that reduces the space required for mounting the luminaire.

  According to the first aspect of the present invention, the longitudinal direction of the fluorescent lamp and the longitudinal direction of the case are obliquely intersected in the same plane so that one end side in the longitudinal direction of the fluorescent lamp is farther from the case than the other end side. Therefore, when a plurality of lighting fixtures are arranged side by side so that the ballasts are arranged in a row, the lighting fixtures can be arranged so that the end portions in the longitudinal direction of the fluorescent lamps overlap each other between adjacent lighting fixtures, It is possible to prevent the lamp socket from being shadowed and partially darkening. Moreover, since the lamp socket and the ballast are arranged so that the center position of the case in the longitudinal direction of the case is shifted to one end side with respect to the center position in the longitudinal direction of the fluorescent lamp, the center position of the case is the fluorescent lamp. Compared with the case where it is arranged so as to be substantially the same position as the center position of the lamp, the portion where the case and the fluorescent lamp overlap in the short direction can be enlarged, and the size of the lighting device in the short direction can be reduced. There is an effect that the space required for mounting can be reduced.

  According to the invention of claim 8, in each lighting fixture, the longitudinal direction of the fluorescent lamp and the longitudinal direction of the case are in the same plane so that one end side in the longitudinal direction of the fluorescent lamp is farther from the case than the other end side. In the case where a plurality of lighting fixtures are arranged side by side so that the ballasts are arranged in a row, the lighting fixtures are arranged so that the end portions in the longitudinal direction of the fluorescent lamps overlap each other between adjacent lighting fixtures. Thus, it is possible to realize a lighting system in which the shadow of the lamp socket is made and partial darkening is prevented. Further, in each lighting fixture, the lamp socket and the ballast are arranged so that the center position of the case in the longitudinal direction of the case is shifted to one end side with respect to the center position in the longitudinal direction of the fluorescent lamp. Compared to the case where the center position is approximately the same as the center position of the fluorescent lamp, the size where the case and the fluorescent lamp overlap in the short direction can be increased to reduce the short dimension of the lighting fixture. In addition, it is possible to realize an illumination system that reduces the space required for mounting the luminaire.

  The top view of the lighting fixture A of this embodiment is shown to Fig.1 (a), and a side view is shown to FIG.1 (b), respectively. Further, FIG. 2 shows a side view in which the lighting fixture A is partially broken.

  This lighting fixture A includes a socket block 20 having a lamp socket 21 for attaching a straight tube fluorescent lamp La to a fixture main body 10 attached to a mounted portion such as a ceiling or a wall, and an elongated case. A ballast 30 in which a lighting circuit (not shown) of the fluorescent lamp La is held by 31 is attached so that the longitudinal direction of the fluorescent lamp La and the longitudinal direction of the ballast 30 are parallel to each other.

  The instrument body 10 is formed by bending a sheet metal to form a rectangular plate-shaped main portion 11 and a side portion 12 protruding in a direction (upward) substantially perpendicular to the main portion 11 from one side edge along the longitudinal direction of the main portion 11. It is prepared as one. A cover portion 13 having a substantially L-shaped side view and having tips of both side pieces connected to the upper ends of the main portion 11 and the side portion 12 is detachably attached to the instrument body 10. And the ballast 30 is arrange | positioned in the space enclosed by the main part 11, the side part 12, and the cover part 13, and the socket block 20 is arrange | positioned in the outer side. Further, the main portion 11 of the instrument main body 10 has insertion holes 14 and 15 for inserting a fixing screw (not shown) outside the cover portion 13 and other than the portion where the socket block 20 is attached. It is penetrating. In addition, a pair of insertion holes 16 and 17 for inserting a fixing screw and a cable insertion hole 18 for introducing a feeder line are also provided on the side portion 12 of the instrument body 10 in a portion other than the portion facing the ballast 30. And is penetrating.

  The socket block 20 has a mounting base 22 formed by bending an elongated sheet metal, and lamp sockets 21 and 21 are attached to both ends of the mounting base 22 in the longitudinal direction.

  A case 31 of the ballast 30 is formed in a bowl shape with both ends opened, and a circuit board 32 made of a printed wiring board is held inside. The circuit board 32 is mounted with components of a conventionally known lighting circuit that lights the fluorescent lamp La, and the circuit board 32 and the lamp sockets 21 and 21 are electrically connected via a cable 33. ing. Reference numeral 34 in FIG. 2 is a connection terminal for connecting the cable 33 to the circuit board 32. In FIG. 2, the cable 33 is omitted. Further, the appliance body 10 is provided with connection terminals CN1 and CN2 for connecting power supply lines (not shown) for supplying commercial power to the lighting circuit on both sides in the longitudinal direction of the case 31, respectively. The connection terminals CN1 and CN2 and the circuit board 32 are electrically connected via cables 35 and 35, respectively.

  The socket block 20 and the ballast 30 are mounted side by side on the main surface of the main portion 11 so that the longitudinal directions thereof are parallel to each other, and one end side in the longitudinal direction of the fluorescent lamp La (the left side in FIG. 1A). The longitudinal direction of the fluorescent lamp La and the longitudinal direction of the case 31 are obliquely intersected in the same plane (in a plane substantially parallel to the main portion 11) so as to be farther from the case 31 than on the other end side (right side). In addition, the socket block 20 and the ballast 30 are arranged so that the center position of the case 31 is shifted to one end side (left side) with respect to the center position of the fluorescent lamp La in the longitudinal direction of the case 31.

  In this way, the longitudinal direction of the fluorescent lamp La and the longitudinal direction of the case 31 are obliquely intersected in the same plane so that one end side in the longitudinal direction of the fluorescent lamp La is farther from the case 31 than the other end side. As shown in FIG. 6, when a plurality of lighting fixtures A1, A2, A3,... Are arranged side by side so that the stabilizers 30 are arranged in a line, the end portions in the longitudinal direction of the fluorescent lamp La between adjacent lighting fixtures A1. Can be arranged so that they overlap each other, and the shadow of the lamp socket 21 is formed on the irradiated surface, and it can be prevented from partially appearing dark.

Moreover, the lamp socket 21 and the ballast 30 are arranged so that the center position CL1 of the case 31 is shifted to one end side (left side) with respect to the center position CL2 of the fluorescent lamp La in the longitudinal direction of the case 31. Therefore, the arrangement direction (short direction) of the fluorescent lamp La and the ballast 30 is compared with the case where the central position CL1 of the case 31 is arranged so as to be substantially the same position as the central position C L2 of the fluorescent lamp La. , The portion where the case 31 and the fluorescent lamp La overlap can be enlarged to reduce the dimension in the short direction of the lighting fixture A as much as possible, and the space required for mounting the lighting fixtures A1.

  In the present embodiment, since the connection terminals CN1 and CN2 are arranged on both sides in the longitudinal direction of the case 31 in the main part 11 of the fixture body 10, a plurality of lighting fixtures A1,. Are arranged so that one connection terminal CN1 (CN2) is used for power supply connection and the other connection terminal CN2 (CN1) is used for feed wiring, connection terminals CN1 of adjacent lighting fixtures A1,. By electrically connecting the CNs 2 via the feeder line 36, the feeder line can be sent and wired to the plurality of lighting fixtures A1,..., And the feeder line can be easily wired. In the example shown in FIG. 6, the power supply line 36 is drawn from both sides of the instrument body 10 in the longitudinal direction, but the power supply line may be drawn through the cable insertion hole 18 provided in the side portion 12.

  Furthermore, in this embodiment, the transparent cover 40 which has translucency is attached to the attachment base 22 of the socket block 20 so that the circumference | surroundings of the fluorescent lamp La may be enclosed (refer FIG. 2). The cover 40 is made of a resin molded product, and is formed in a substantially U-shape in a side view by an elongated plate-like upper plate 41 and side plates 42 and 43 protruding downward from both side edges along the longitudinal direction of the upper plate 41. Outer flanges 44 and 44 project from the lower edges of the outer surfaces of the side plates 42 and 43 toward the outside.

  Here, the mounting base 22 is formed with an elastic locking piece 23 that locks with one outer flange 44 by bending one side edge along the longitudinal direction upward, and the other side along the longitudinal direction. Locking claws 24 and 24 that lock with the other outer flange 44 are formed by cutting and raising part of the side edge. Thus, when the cover 40 is attached to the attachment base 22, one outer flange 44 of the cover 40 is inserted into the engaging claws 24, 24 obliquely from the upper side and hooked with the engaging claws 24, 24. When the opposite side of the cover 40 is pushed into the mounting base 22 side, the elastic locking piece 23 is pushed outward by the other outer flange 44. Thereafter, the opposite side of the cover 40 is further pushed into the mounting base 22 side, so that the outer flange 44 exceeds the elastic locking piece 23 and the outer flange 44 is held between the elastic locking piece 23 and the upper surface of the mounting base 22. Thus, the cover 40 can be easily attached to the attachment base 22. When removing the cover 40, if the opposite side of the cover 40 is pulled away from the mounting base 22, the elastic locking piece 23 is pushed outward by the outer flange 44, and the outer flange 44, the elastic locking piece 23, Since the locked state is released, the cover 40 can be easily removed. Thus, since the cover 40 can be attached and detached using the elasticity of the elastic locking piece 23, the attachment and detachment work of the cover 40 can be easily performed. Here, the elastic locking piece 23 and the locking claw 24 constitute mounting means for mounting the cover 40 to the mounting base 22 (the instrument body).

  A reflective plate 45 is detachably attached to the cover 40 along the inner surface of one side plate 43. The reflection plate 45 is formed in a strip shape from a well-known resin material having a heat shielding property, and is formed in white so that the reflectance with respect to visible light is increased. Insertion grooves 43a and 43b are formed on both upper and lower sides of the inner surface of the side plate 43. By inserting the reflection plate 45 into the insertion grooves 43a and 43b from one end side of the cover 40, the reflection plate 45 is covered with the cover 40. Are integrally held. Here, holding means for holding the reflecting plate 45 integrally is formed by the insertion grooves 43a and 43b. A plurality of concave and convex surfaces 46 constituting a prism are formed on the inner side surface (the surface facing the fluorescent lamp La) of the other side plate 42 and the upper plate 41 of the cover 40.

  Thus, in a state where the cover 40 is attached to the attachment base 22, the fluorescent lamp La mounted on the lamp socket 21 and the reflector 45 held by the cover 40 are arranged in the arrangement of the fluorescent lamp La and the ballast 40. The light that is juxtaposed in the direction and irradiated from the fluorescent lamp La to the reflection plate 45 side (one side in the arrangement direction) is reflected to the opposite side by the reflection plate 45, so that the light from the fluorescent lamp La is opposite to the arrangement direction. Thus, the amount of light irradiated in this direction can be increased, and the brightness uniformity of the irradiated surface can be increased. The light emitted from the fluorescent lamp La to the upper side (direction substantially perpendicular to the arrangement direction) is lowered by the uneven surface 46 of the upper plate 41 and the side plate 42, that is, substantially parallel to the arrangement direction and opposite to the reflection plate 45. Therefore, the amount of light irradiated in this direction can be increased, and the brightness uniformity of the irradiated surface can be further increased. 2 indicates a light distribution pattern in which the light distribution is controlled by the reflector 45 and the prism.

  Here, since the fluorescent lamp La is covered by the translucent cover 40, it is possible to prevent dust from adhering to the fluorescent lamp La, and it is only necessary to wipe the cover 40 at the time of cleaning. . Moreover, since the uneven surface 46 of the prism is formed on the inner surface of the cover 40, the surface of the cover 40 can be formed flat, and the surface can be easily cleaned. In addition, since the reflection plate 45 is disposed inside the cover 40, the heat transmitted to the cover 40 can be reduced by the reflection plate 45 blocking heat generated by the fluorescent lamp La. In addition, the cover 40 holding the reflecting plate 45 hooks and locks the outer flange 44 provided on one side plate 42, 43 to the locking claw 24, and the outer flange 44 provided on the other side plate 43, 42. Since it is attached to the mounting base 22 by being locked to the elastic locking piece 23, the direction of the cover 40 can be mounted 180 degrees opposite to the longitudinal direction of the mounting base 22 (that is, the fluorescent lamp La), By simply changing the mounting direction of the cover 40, the reflection direction by the reflection plate 45 can be easily changed, and the reflection plate 45 is disposed on the opposite side to the direction in which light is desired to be emitted. Don't make a mistake.

  The lighting fixture A of the present embodiment has the above-described configuration, and a lighting system using the lighting fixture A will be described below. This lighting fixture A is an architectural lighting fixture that is arranged inside a building to illuminate the ceiling and walls, and various construction states are shown in FIGS.

  FIG. 3 shows a construction state at the time of cove lighting, and the fixture body 10 is fixedly mounted on an overhanging portion 52 having an L-shaped cross section protruding above the building wall 51 with a gap from the ceiling 50. . The instrument body 10 may be screwed to the overhanging portion 52 using fixing screws inserted through the insertion holes 14 and 15 of the main portion 11, or may be fixed to the overhanging portion 52 using other fixing methods. You may do it. During the cove illumination, the fixture body 10 is fixed so that the ballast 30 is disposed on the wall 51 side and the socket block 20 is disposed on the opposite side of the wall 51 from the wall 51. The cover 40 is attached to the attachment base 22 so that the reflecting plate 45 is positioned between the fluorescent lamp La and the ballast 30. At this time, the light emitted from the fluorescent lamp La is applied to the ceiling surface through a gap between the tip of the overhang portion 52 and the ceiling 50. The light emitted from the fluorescent lamp La toward the wall 51 is reflected by the reflector 45 in the direction opposite to the wall 51, and the light emitted upward from the fluorescent lamp La is lowered by the uneven surface 46 of the cover 40. Therefore, it is possible to increase the light irradiated to the central portion of the ceiling 50 through the gap between the tip of the overhang portion 52 and the ceiling 50, and to increase the uniformity of the brightness of the irradiated surface.

  FIG. 4 shows a construction state at the time of cornice illumination, and the back surface of the main part 11 is brought close to the side surface (the surface facing the wall 51) of the descending wall 53 suspended from the ceiling 50 with a gap between the wall 51 and the wall 51. The instrument main body 10 is arranged, and the instrument main body 10 is fixed by screwing a fixing screw 60 passed through the insertion holes 16 and 17 of the side portion 12 into the ceiling portion. At the time of cornice illumination, the fixture body 10 is fixed so that the ballast 30 is arranged on the ceiling 50 side and the socket block 20 is arranged on the opposite side of the ceiling 50 to the ballast 30. The cover 40 is attached to the attachment base 22 so that the reflecting plate 45 is positioned between the fluorescent lamp La and the ballast 30. At this time, the light irradiated from the fluorescent lamp La is irradiated to the wall 51, but the light irradiated from the fluorescent lamp La toward the ceiling 50 is reflected downward by the reflecting plate 45 and further horizontally from the fluorescent lamp La. Since the light irradiated on one side of the direction (opposite to the down wall 53) is bent downward by the uneven surface 46 of the cover 40, the light irradiated on the lower wall 51 of the lighting fixture A is increased and irradiated. The uniformity of surface brightness can be increased. In the case of cornice illumination, since the fluorescent lamp La is disposed below the ballast 30, the reflecting plate 45 is disposed above the fluorescent lamp La, and the reflecting plate 45 generates heat from the fluorescent lamp La. It is possible to prevent the cover 40 and the construction material (ceiling 50) from being adversely affected.

  Further, FIG. 5 shows a construction example in the case of being used under the furniture, and the lighting apparatus A is attached to the lower surface of the furniture 55 attached with the back surface in contact with the wall 51 with a gap provided between the floor 54 and the floor 54. Attach and irradiate the floor 54 with light from the lower surface of the furniture 55 to perform indirect illumination. The appliance main body 10 has the fixing screw 60 inserted through the insertion holes 14 to 17 in the furniture 55 and the wall 51 in a state where the main portion 11 and the side portion 12 are in contact with the lower surface of the furniture 55 and the wall 51, respectively. It is fixed to the lower surface of the furniture 55 by screwing. In the case of lighting under furniture, the fixture body 10 is fixed so that the ballast 30 is arranged on the wall 51 side and the socket block 20 is arranged on the opposite side of the wall 51 from the wall 51. The cover 40 is attached to the attachment base 22 so that the reflecting plate 45 is positioned between the fluorescent lamp La and the ballast 30. At this time, the light emitted from the fluorescent lamp La is applied to the central portion of the floor 54 through a gap between the lower surface of the furniture 55 and the floor 54, but is applied to the wall 51 side from the fluorescent lamp La. The reflected light is reflected in the opposite direction by the reflector 45, and the light irradiated downward from the fluorescent lamp La is bent to the opposite side of the wall 51 by the uneven surface 46 of the cover 40. It is possible to increase the irradiated light and increase the uniformity of the brightness of the irradiated surface.

  Thus, since the lighting fixture A of this embodiment is provided with the insertion holes 14-17 for inserting a fixing screw in the main part 11 and the side part 12 of the instrument main body 10, in the insertion holes 14-17. It can fix to a to-be-fixed surface by the above-mentioned three attachment methods using the inserted fixing screw 60, and can respond to the architectural lighting according to the purpose use.

The lighting fixture of this embodiment is shown, (a) is a top view, (b) is a side view. It is a side view which fractures | ruptures same as the above. It is a construction drawing in the case of performing cove illumination using the same as above. It is a construction drawing in the case of performing cornice illumination using the same as above. It is a construction drawing at the time of attaching the same to the lower surface of furniture. It is explanatory drawing of the illumination system using two or more same as the above. The conventional lighting fixture is shown, (a) is a top view, (b) is a side view.

Explanation of symbols

A lighting fixture 10 fixture body 21 lamp socket 30 ballast 31 case La fluorescent lamp

Claims (8)

A lamp socket for mounting a straight tube fluorescent lamp, a ballast in which a lighting circuit for the fluorescent lamp is held in a vertically long case, and the longitudinal direction of the fluorescent lamp and the longitudinal direction of the ballast are parallel to each other An instrument body for mounting and holding the lamp socket and the ballast on the main surface ,
The longitudinal direction of the fluorescent lamp and the longitudinal direction of the case obliquely intersect in the same plane so that one end side in the longitudinal direction of the fluorescent lamp is farther from the case than the other end side, and the longitudinal direction of the case The lamp fixture and the ballast are arranged such that the center position of the case in the direction is shifted toward the one end side with respect to the center position in the longitudinal direction of the fluorescent lamp.   The lighting apparatus according to claim 1, further comprising a reflecting member that has heat shielding properties and reflects light emitted from the fluorescent lamp to one side in the arrangement direction of the fluorescent lamp and the ballast to the opposite side.   The lighting apparatus according to claim 2, further comprising a translucent cover attached to the apparatus main body so as to surround the fluorescent lamp, and the reflecting member is disposed inside the cover.   A holding means for integrally holding the reflecting member is provided on the cover, and an attachment means for allowing the cover to be attached in a direction opposite to the longitudinal direction of the fluorescent lamp by 180 degrees is provided on the instrument body. The lighting fixture according to claim 3.   A traveling direction of light emitted from the fluorescent lamp in a direction substantially perpendicular to the arrangement direction is bent on the inner side surface of the cover so as to be substantially parallel to the arrangement direction and close to a direction opposite to the reflecting member. The lighting fixture according to claim 3 or 4, wherein an uneven surface of the prism is formed.   The appliance body is integrally provided with a plate-like main portion to which the lamp socket and the ballast are attached, and a side portion protruding in a direction substantially perpendicular to the main portion. The lighting fixture according to any one of claims 1 to 5, wherein an insertion hole for inserting a fixing screw for screwing the fixture main body to the attachment portion is provided.   In the said instrument main body, the connection terminal which connects the electric power feeding line for supplying a commercial power source to the said lighting circuit was each arrange | positioned at the both sides of the longitudinal direction of the said case. Lighting equipment described in one.   A plurality of lighting fixtures according to any one of claims 1 to 7, wherein the longitudinal directions of the cases of the respective lighting fixtures are aligned on the same straight line, and the ends in the longitudinal direction of the fluorescent lamps between adjacent lighting fixtures A lighting system in which each lighting fixture is arranged so that the parts overlap each other.

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