JP2871028B2 - lighting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial application field) The present invention relates to a lighting fixture in which a plurality of reflecting members, such as a reflector and a louver, are vertically provided in a lighting fixture main body. The present invention relates to a lighting device that achieves a further reduction.

(Prior Art) In recent years, lighting fixtures with louvers and the like are frequently used as indoor lighting fixtures for disposing displays such as OA equipment, and the lighting fixture 1 shown in FIG. 3 can be considered as an example.

Although this lighting fixture 1 is not conventionally known, for example, a plurality of pairs of front and rear sockets 2 and 2 are attached to the inside of a flat box-shaped fixture main body 1 fixed to a ceiling or the like, for example, on the left and right sides. , Each of which has a fluorescent lamp 3 in the form of a straight tube.

By attaching a grid-like louver 4 as a reflector below the mounting position of the fluorescent lamps 3, 3 in the lower end of the opening of the main body 1 in the figure, the fluorescent lamps 3, 3 can be viewed directly. In addition to preventing glare and protecting the eyes, the fluorescent lamps 3,3 are prevented from being directly reflected on the VDT (Visual Display Terminal) of OA equipment, that is, the display, and obstructing their visibility. It is controlling light.

The louver 4 includes a vertical louver blade 4a extending along the axial direction to partition between the two fluorescent lamps 3 and outside of each of them, and a plurality of horizontal louver blades 4b orthogonal to the vertical louver blade 4b. It is assembled and assembled.

In order to simplify the mounting of the louver 4 to the apparatus main body 1, the vertical louver blade 4a is divided into two upper vertical louvers by a dividing line 6 which substantially coincides with the upper end of the horizontal louver blade 4b in the drawing.
7, 7 and one lower louver 8 are vertically divided.

(Problems to be Solved by the Invention) However, in such a lighting fixture, the dividing line 6 is within a range of a light shielding angle θ ₀ of, for example, about 30 °, and furthermore, each of the joining lines substantially on the dividing line 6 Since a minute gap is formed at the joint between the joining flange 7a of the upper vertical louver 7 and the joining flange 8a of the lower louver 8, light is diffusely reflected at this joint and shines, for example, VDT (visual).
There is a problem that it is reflected on the screen of the display terminal as a white horizontal line or the like, causing glare and reducing the visibility of the VDT screen.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a lighting device that can further reduce glare.

[Configuration of the invention]

(Means for Solving the Problems) The present invention is configured as follows to solve the problems.

A first reflector having an open end at a lower portion; an upper open end facing the lower open end of the reflector; and a second reflector having a lower open end facing the upper open end; A lamp and a luminaire body for arranging the first and second reflection pairs such that opposing ends of the reflectors are located at positions exceeding the light-shielding angle of the lamp. Lighting equipment.

(Operation) Since the opposing ends of the first and second reflectors are located beyond the light-blocking angle of the lamp, light reflected at the opposing ends is blocked by a part of the reflector.

For this reason, it is possible to prevent the light reflected at the opposite end portions of the first and second reflector members from being reflected on the VDT or the like, and to prevent glare, thereby further reducing glare.

(Embodiment) An embodiment of the present invention will be described below with reference to FIG. 1 and FIG.

FIG. 2 is a perspective view of one embodiment of the present invention. In the figure, a lighting fixture 11 has a pair of front and rear sockets 13 and 13 inside a flat box-shaped fixture main body 12 fixed to, for example, a ceiling or the like.
A plurality of straight fluorescent lamps 14, 14 are detachably mounted on these sockets 13, and these fluorescent lamps 14,
A louver 15 serving as a reflector is provided around or below 14.

As shown in FIG. 1, the instrument body 12 has a top plate 12 therein.
A mounting plate 12b substantially parallel to a is fixed by welding, caulking, or the like.

The louver 15 is made of aluminum, resin, etc.
Each of the outer louver blades 15a and the outer louver blades 15a extending substantially in parallel with the axial direction between the outer louver blades 4 and a plurality of horizontal louver blades 15b orthogonal to the outer louver blades 15a are arranged on a lattice. The dividing line 16 vertically divides, for example, two upper vertical louvers 17, 17 as a first reflector and one lower vertical louver 18 as a second reflector.

The dividing line 16 is set slightly inward (upper in FIG. 1) than the inner end (upper end in FIG. 1) of the horizontal louver blade 15b and extends over the entire length of the vertical louver blade 15; 17
At the lower end in the figure and the upper end of the lower vertical louver 18 in the figure, connecting flanges 17a and 18a are formed respectively.
With the upper and lower vertical louvers 17, 18 facing each other with the a and 18a facing each other or approaching each other,
It is fixed to.

The dividing line 16 is formed at the outer peripheral side of the louver 15 by a joining portion of both joining flanges 17a, 18a joined in a vertical direction, and a V-shaped tip portion of a vertical louver blade 15a between the two fluorescent lamps 14, 14. The angle θ between the dashed line in the figure connecting the center of the lower surface in the figure and the horizontal line in contact with the center of the lower surface of the V-shaped tip is set to form, for example, about 35 °, and the light shielding angle of 30 °
It is set to an angle greater than °.

Therefore, it is possible to prevent the light reflected on the inner surface of the joint between the two joint flanges 17a and 18a from being reflected on a screen such as a VDT.

Each of the arc-shaped upper vertical louvers 17 is attached to the mounting plate 12 by a plurality of decorative screws 12c at the upper ends at both ends in the longitudinal direction.
It is tightened and fixed to the inner surface of b.

Lower vertical louvers 18 are provided the one side plate thereof, for example the opening lower end 18b ₁ of the left side plate 18b a plurality of hooking brackets 19 at its longitudinal ends, respectively.

Each hook 19 is bent at the tip 19a of the metal strip into a downward hook shape, and the tip 19a is inserted into a hook hole 20 drilled at the lower end of the opening of the instrument body 12, respectively. Further, they are slightly projected outward.

Therefore, the hook 19 is inserted into the hook hole 20 as shown in FIG. The free end (the right end in FIG. 1) of the lower vertical louver 18 can be rotated about the portion as a fulcrum.

Then, the right side plate 18c on the rotation end side of the lower vertical louver 18
Of the opening lower end 18c ₁ at its longitudinal ends it is provided with a stop member 21, respectively.

Each stopper 21 slightly lowers a lower end portion 21a which is a free end portion of a spring plate formed of a metal strip having elasticity,
It is formed on the operation end.

Then, the operation end 21a of each stopper 21 is pushed inward as shown by the arrow in FIG. 1 against the spring force, so that the locking tongue piece 21b and the locking hole 22 are locked. It can be released and, conversely, locked again by stopping its holding.

That is, the hook 10 and the stopper 21 are connected to the device body 12.
The lower louver 18 can be removably attached to the instrument main body 12 by inserting and locking it into the hook holes 20 and the locking holes 22.

This embodiment as described above, since setting the dividing line 16 to a position beyond the light shielding angle theta _0, joint flange 17a, the light reflected by the inner surface of 18a is glare on the VDT, that the glare is produced Can be prevented.

〔The invention's effect〕

As described above, according to the present invention, since the opposing end of the first and second reflectors facing each other is located beyond the light-blocking angle of the lamp, the light reflected at the opposing end of the reflector is provided. Can be shielded from light and reflected on, for example, a VDT or the like, and glare can be prevented from occurring, and glare on the screen can be prevented.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view taken along the line II of FIG. 2, FIG. 2 is a perspective view of an embodiment of a lighting fixture according to the present invention, and FIG. 3 is a longitudinal sectional view of a conventional lighting fixture with louvers. 11: lighting equipment, 12: equipment body, 14: fluorescent lamp, 15: louver, 16: dividing line, 17: upper vertical louver (light control member), 18
... Lower vertical louver (light control member).

Claims (1)

(57) [Claims] A first reflector having an open end in a lower portion; an upper open end opposed to the lower open end of the reflector; and a second reflector having a lower open end opposed to the upper open end. A luminaire main body for arranging the lamp and the first and second reflectors such that opposing ends of the reflectors are located at positions exceeding the light-shielding angle of the lamp; Lighting equipment characterized by being.