JPH0648667Y2 - lighting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a lighting fixture, and more particularly to a lighting fixture having an upward light distribution.

[Conventional technology]

In the case of lighting equipment, the heat generated in the lamp is usually most directly above the lamp. If a translucent panel is placed directly above the lamp, the surface temperature of the translucent panel is expected to exceed 200 ° C depending on the conditions of the lamp, etc., and not only the translucent panel itself may be deformed or deteriorated, but also combustible materials. If you touch the hot part of the translucent panel, there is a risk of fire in the worst case.

Therefore, as in the lighting fixture described in Japanese Utility Model Laid-Open No. 62-201424 shown in FIG. 6, the incandescent lamp 4 is attached to the lamp socket 3 fixed in the fixture main body 2 mounted on the mounting surface 1 such as a wall. Attach it, screw in a plastic globe 5 as a translucent panel to the main body 2, and attach the incandescent lamp 4
Conventionally known is a lighting fixture in which a heat shield 6 is provided between the globe 5 and the above-mentioned globe 5 to take measures against temperature.

[Problems to be solved by the device]

However, in the lighting device as described above, the heat shield 6 is simply provided between the incandescent lamp 4 and the globe 5, and not only the shadow of the heat shield 6 appears on the upper surface of the globe 5, There is a problem that the shadow of the heat shield 6 is also reflected on the ceiling and the like, which impairs the appearance.

The present invention has been made in view of the above background, and an object of the present invention is to provide a lighting fixture capable of taking measures against the temperature directly above the lamp without impairing the appearance.

[Means for Solving the Problems]

The luminaire according to the present invention is a luminaire in which the upper part of a lamp mounted on the lamp body is covered with a translucent panel, and a heat shield is provided between the lamp and the translucent panel to cover the lamp directly above. In addition to being diffusive, a reflector is provided to reflect a part of the light from the lamp onto the translucent panel directly above the heat shield.

〔Example〕

1 to 5 show an embodiment of the present invention, which will be described below with reference to the drawings.

This luminaire is a so-called upper light luminaire, which is a bracket type that is mounted with the wall as the mounting surface 1 and has upward light distribution. Mounting part mounted on mounting surface 1 such as a wall
An arm 11 extending substantially forward is provided on the front surface of 10, and a lamp 12 is provided on the upper surface near the tip of the arm 11.

A terminal block 13 for connecting a power supply wire is installed in the mounting part 10, and an arm is attached to a lamp socket 14 installed in the lamp fixture 12.
The halogen lamp 15 mounted in the lamp socket 14 is connected by wiring through the inside of the lamp 11, and is turned on.

The lamp 12 has a lamp socket in a lamp body 16 having an elliptic bowl shape having a long axis extending in a direction substantially along the mounting surface 1 and having an upper surface opened.
14 is attached, and a halogen lamp 15 is mounted so that its long axis is substantially aligned with the direction of the long axis of the lamp body 16 so that the filament position is substantially the center of the lamp body 16. A diffusive translucent panel 17 having a shape in which four corners of a rectangle are dropped is attached to the lamp body 16 so as to cover the upper opening of the lamp body 16 with a thumbscrew 18 in a detachable manner. Further, the lamp body 16 is provided with a reflection plate 19 which covers the lower side and the side of the halogen lamp 15 and emits light upward. On the inner surface of the diffusive translucent panel 17, there is provided a heat shield 20, which is a rectangular shape having a length substantially equal to the length of the diffusive translucent panel 17 and slightly wider than the width of the halogen lamp. Separated from the optical panel 17, both ends are in contact with the diffusive translucent panel 17 and are attached by the bushings 21.

In this lighting fixture, since the heat shield 20 is located directly above the halogen lamp 15 in use, the heat generated by the halogen lamp 15 may be blocked by the heat shield 20 and the diffusive translucent panel 17 may overheat. Absent. Also, at this time, the halogen lamp of the heat shield 20
Although the temperature directly above 15 is considerably high, the heat shield 20 has a long length, so that heat is dissipated into the air up to both ends contacting the diffusive translucent panel 5, and a local high temperature part may occur. It is possible to prevent the occurrence of problems due to high temperatures.

In this luminaire, as shown in FIG. 4, the light emitted from the halogen lamp 15 and reflected by the reflection plate 19 is also applied to the diffusive translucent panel 17 directly above the heat shield 20 and diffused. Since the light is diffused by the permeable light-transmitting panel 17, a shadow is unlikely to occur on the diffusive light-transmitting panel 17 and the irradiation surface such as the ceiling, and the aesthetic appearance is not impaired.

Further, in this luminaire, since the heat shield 20 is attached to the diffuse translucent panel 17 by the bushing 21, the knob screw 18 is loosened when the lamp is replaced, etc.
If you remove, you can also remove the heat shield 20 at the same time,
Good workability.

[Effect of device]

Since the present invention is configured as described above, it does not create a shadow on the diffusive translucent panel or the irradiation surface, so that it does not spoil the aesthetics and takes temperature countermeasures without raising the temperature of the panel directly above the lamp too much. It is possible to provide a lighting device capable of performing the above.

[Brief description of drawings]

1 to 5 show an embodiment of the present invention. FIG. 1 is a sectional front view of a lamp, FIG. 2 is a side view,
FIG. 3 is a plan view, FIG. 4 is a cross-sectional side view of a main part, and FIG. 5 is an exploded perspective view of the main part showing a mounting state of the heat shield and the diffusive translucent panel. FIG. 6 is a side view of a conventional example of the present invention in a use state in which a main part is broken. 1 ... Mounting surface, 12 ... Lamp fixture, 14 ... Lamp socket,
15 …… halogen lamp, 16 …… lamp body, 17 …… diffusive translucent panel, 19 …… reflector, 20 …… heat shield.

Claims (1)

[Scope of utility model registration request] 1. A luminaire in which a lamp installed in a lamp body is covered with a translucent panel, and a heat shield is provided between the lamp and the translucent panel to cover the lamp directly above the translucent panel. In addition, the luminaire is provided with a reflection plate for reflecting a part of the light from the lamp on the translucent panel directly above the heat shield.