JPH0719045Y2 - lighting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a lighting fixture.

[Conventional technology]

Illumination including an appliance body having an opening and a lamp inside the opening, a louver provided in the opening, and a reflection plate disposed on the back side of the lamp of the appliance body. I have equipment.

[Problems to be solved by the device]

However, in this luminaire, due to the distance between the lamps and the number of lamps, less light is incident on the louver surface of the louver, with its back facing the lamp at a position distant from the lamp, resulting in uneven brightness on the louver surface and poor uniformity. It had the drawback of being ugly.

Therefore, an object of the present invention is to provide a lighting device capable of reducing the uneven brightness on the louver surface.

[Means for Solving the Problems]

The luminaire of the present invention is provided with an instrument main body having an opening and a lamp inside the opening, a louver provided in the aperture, and a rear side of the lamp of the instrument main body. A reflector is provided, and a curved auxiliary reflector is provided on a side portion of the reflector to illuminate a louver surface of the louver facing away from the lamp.

[Action]

According to the configuration of this invention, the direct light of the lamp passes through the hole of the louver and is incident on the louver surface, the reflector and the auxiliary reflector. Then, the reflected light reflected by the reflector passes through the hole of the louver and is incident on the louver surface. The light reflected by the auxiliary reflector enters the louver surface of the louver with its back facing the lamp located away from the lamp. The reflected light of the light incident on the louver surface is emitted in the direction regulated by the louver surface.

In this way, the curved auxiliary reflector that illuminates the louver surface with its back turned to the lamp that is far from the louver lamp is provided, so that even the louver surface, which is a parabolic surface, allows sufficient light to enter the upper end side. As a result, the louver surface can be illuminated sufficiently and uniformly, uneven brightness can be sufficiently prevented, and the uniformity can be improved and the appearance can be improved.

〔Example〕

An embodiment of the present invention will be described with reference to FIGS. 1 and 2. That is, this lighting fixture includes the fixture body 1, the louver 2, the reflector 3, and the auxiliary reflector 4.

The instrument body 1 has an opening 5 and a lamp 6 inside the opening 5. This instrument body 1 is attached to the ceiling,
The opening 5 faces the lower surface. The lamp 6 is a straight tube fluorescent lamp as an example. 7 is a ballast.

The louver 2 is provided in the opening 5. This louver 2
Is formed as a parabolic surface that reflects incident light passing through a focal point (not shown) vertically downward.

The reflector 3 is arranged on the back side of the lamp 6 of the instrument body 1.

The auxiliary reflection plate 4 is disposed on the side portion of the reflection plate 3 and is attached to the louver 2.
The louver surface 8a of the louver surface 8 which faces away from the lamp 6 at a position away from the lamp 6 is reflected. The auxiliary reflection plate 4 of the embodiment is integrally formed on the side portion of the reflection plate 3 and is bent in a bent state.

In this lighting device, the direct light of the lamp 6 passes through the hole 9 of the louver 2 and is incident on the louver surface 8, the reflector 3 and the holding reflector 4. Then, the reflected light reflected by the reflection plate 3 is the louver 2.
In addition to passing through the hole 9, the light enters the louver surface 8. The light reflected by the auxiliary reflection plate 4 is incident on the louver surface 8a of the louver 2 with its back facing the lamp 6 located away from the lamp 6. The reflected light incident on these louver surfaces 8 and 8a is reflected by the louver surfaces 8 and 8a.
It is injected in the direction regulated by. As described above, since the auxiliary reflection plate 4 is provided, it is possible to prevent uneven brightness of the louver surfaces 8 and 8a as compared with the conventional example, and the uniformity is improved and the appearance is improved.

Furthermore, a part of the reflected light of the auxiliary reflection plate 4 directly passes through the louver 2 and is irradiated downward, which contributes to the improvement of the efficiency of the device together with the light incident on the louver surface 2.

The auxiliary reflection plate 4 may be formed separately from the reflection plate 3.

[Effect of device]

According to the luminaire of the present invention, since the curved auxiliary reflector for illuminating the louver surface with its back facing the lamp of the louver is provided at the position away from the lamp, the parabolic louver surface also has its upper end side. Since the light can be sufficiently incident, the louver surface can be illuminated sufficiently and uniformly, the uneven brightness can be sufficiently prevented, the uniformity can be improved, and the appearance can be improved.

[Brief description of drawings]

FIG. 1 is a schematic sectional view of an embodiment of the present invention, and FIG. 2 is an enlarged partial sectional view of a louver. 1 ... Instrument body, 2 ... Louver, 3 ... Reflector plate, 4 ... Auxiliary reflector plate, 5 ... Opening part, 6 ... Lamp, 8a ... Louver surface

Claims (1)

[Scope of utility model registration request] 1. A device main body having an opening and a lamp provided inside the opening, and a louver provided in the opening.
A reflector plate disposed on the back side of the lamp of the instrument body, and a louver face disposed on the side of the reflector plate and having its back faced to the lamp at a position away from the lamp. Lighting equipment with a curved auxiliary reflector.