JPH062509U - lighting equipment - Google Patents

Abstract

(57) [Abstract] [Purpose] To reduce the overall height of the device relative to the opening size of the device and to improve the efficiency of the device. [Constitution] The total height H of the main body 1 is made lower than in the conventional case, and the reflection plate 4 disposed between the lamps 3 is formed so as to project from the lower end of the main body 1 by L dimension. The louvers 5 arranged along the longitudinal direction of the lamp 3 are also arranged so as to project by the L dimension, like the reflector 4. Further, a light shielding plate 8 is provided outside the lamp 3, and the light shielding angle θ of the lamp 3 is obtained by the light shielding plate 8. In order to improve the accommodation of the reflection plate 4 in the longitudinal direction, the tapered portion 9 is formed so that the end of the reflection plate 4 is inclined inward from the lower end of the instrument. By forming the tapered portion 9 on the reflection plate 4, problems in appearance and design are solved.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an embedded lighting fixture installed on a ceiling surface.

[0002]

[Prior art]

 FIG. 2 shows a conventional embedded luminaire having a light blocking angle θ. A ballast 2 is arranged on the ceiling surface of a box-shaped main body 1 having an opened lower surface, and two straight tube-shaped lamps 3 are arranged side by side. A reflecting plate 4 having a substantially V-shaped cross section is arranged between the lamps 3, and a plurality of louvers 5 are arranged below the lamp 3 along the longitudinal direction of the lamp 3. ing. In addition, sockets 6 for mounting the lamps 3 are provided on the inner side surfaces of both sides of the main body 1.

The height of this type of lighting fixture is regulated, and the lighting fixture is arranged so as to be embedded in the opening on the ceiling surface. Here, in FIG. 2, H indicates the total height of the luminaire, and W indicates the total width of the luminaire. Further, side pieces 7 for installation at the opening edge portion of the ceiling surface are projected on both sides of the lower portion of the main body 1, and the amount of projection is W '.

By constructing the lighting fixture in this way, a light-shielding angle θ is formed.

[0005]

[Problems to be solved by the device]

 In the case of the conventional luminaire shown in FIG. 2, the total height H of the luminaire is determined by the tube diameter of the lamp 3 and the dimensions of W and W'above. However, there is a problem that it is difficult to restrict the height (reduce the height of the device).

FIG. 3 shows another conventional example. As a measure in the case where the H dimension and the W and W ′ dimensions are regulated as shown in the figure, the louvers 5 are arranged below the lamp 3 in a grid pattern. , The light shielding angle θ may be obtained, but the height of the louver 5 can be restricted (that is, the smaller the H dimension, the lower the height of the louver 5 and the finer the pitch of the louver 5). There was a problem of inefficiency.

The present invention has been made in view of the above points, and provides an illuminating device for reducing the overall height of the device with respect to the opening size of the device and improving the efficiency of the device. It is provided.

[0008]

[Means for Solving the Problems]

 The present invention is a lighting fixture in which the total height of the fixture is regulated so that the light is shielded at a certain angle in the lamp. Is provided with a light-shielding plate for shielding light at a predetermined angle, and a taper portion is formed by inclining the end portion of the reflection plate inward from the lower end of the instrument.

[0009]

[Action]

 Thus, the lower part of the reflector plate is projected from the lower end of the device by a predetermined dimension, and the light shielding plate that blocks the light from the lamp at a predetermined angle is provided, so that the device has a constant light shielding angle. The overall height of the equipment can be reduced with respect to the opening size of the equipment, and the construction efficiency can be reduced. Furthermore, the efficiency of the equipment can be improved. By forming the tapered portion to be used, the design of the device can be improved.

[0010]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows an embodiment of the present invention, in which the luminaire has a regulated height H, full widths W and W ', and a predetermined light-shielding angle [theta]. It should be noted that members having the same functions as those of the conventional example shown in FIG.

The main body 1 is formed to have a lower overall height H than the conventional example, and the reflection plate 4 arranged between the lamps 3 is formed and arranged so as to project from the lower end of the main body 1 by L dimension. Further, the louvers 5 arranged at predetermined intervals along the longitudinal direction of the lamp 3 are also arranged so as to project by an L dimension like the reflector plate 4. Light-shielding plates 8 are arranged outside the lamp 3 along the longitudinal direction of the lamp 3. The light blocking angle of the lamp 3 is obtained by the light blocking plate 8.

Further, in order to improve the accommodation of the reflection plate 4 in the longitudinal direction, as shown in FIG. 1B, the end of the reflection plate 4 is inclined inward from the lower end of the instrument (main body 1). By forming the tapered portion 9 and forming the tapered portion 9 on the reflection plate 4, problems in appearance and design are solved. The louver 5, the light shielding plate 8 and the reflection plate 4 are integrally connected.

With this structure, the total height H, the total width W, and W ′ of the fixture are regulated, and in a lighting fixture having a constant light-shielding angle θ, the total height of the fixture can be reduced with respect to the opening size of the fixture. It is possible to reduce the construction work, and improve the efficiency and design of the equipment.

[0014]

[Effect of device]

 As described above, the present invention is a lighting fixture in which the total height of the fixture is regulated and the lamp is shielded at a certain angle, and the lower part of the reflector is projected by a predetermined dimension from the lower end of the fixture. A light-shielding plate that shields the light from the lamp at a predetermined angle is provided, and the end of the reflector is tapered to inward from the lower end of the fixture. By projecting more light by a predetermined size and by disposing a light blocking plate that blocks the light from the lamp at a predetermined angle, it is possible to reduce the overall height of the device with respect to the opening size of the device by providing a constant light blocking angle. As a result, the work efficiency can be reduced, and the efficiency of the equipment can be improved. Furthermore, by forming the taper part that inclines the end of the reflector from the lower end of the equipment to the inside, To improve the design of In which an effect that can.

[Brief description of drawings]

FIG. 1A is a cross-sectional view of a lighting fixture according to an embodiment of the present invention,
(B) is a cross-sectional view of a main part.

2A is a cross-sectional view of a conventional lighting fixture, and FIG. 2B is a cross-sectional view of a main part.

FIG. 3A is a cross-sectional view of another conventional lighting fixture,
(B) is a cross-sectional view of a main part.

[Explanation of symbols]

 1 Main body 3 Lamp 4 Reflector 5 Louver 8 Light shield 9 Tapered part θ Light shield angle

Claims (1)

[Scope of utility model registration request] 1. In a lighting fixture in which the total height of the fixture is regulated so that the lamp shields light at a certain angle, the lower part of the reflector is projected from the lower end of the fixture by a predetermined dimension, and the light from the lamp is projected. An illuminating device comprising: a light-shielding plate that shields light at a predetermined angle; and a taper part that is formed by inclining an end of the reflecting plate inward from a lower end of the device.