JPS6316501A - Lighting fixture for hospital room - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a lighting fixture for a hospital room, particularly for a hospital room with 4 to 6 beds, which is suitable for ceiling lighting when there is a passageway in the center. .

[Conventional technology]

A hospital room with about 4 to 6 beds usually has a passageway in the center of the room, and the beds are arranged so that the patients' feet face each other on the side of the passageway.

Ceiling lighting fixtures are installed above the passageway. The above-mentioned lighting equipment, which is especially designed as a lighting equipment for a hospital room, is generally an indirect lighting equipment that primarily distributes light in a horizontal or upward direction in order to reduce glare on patients. The above lighting equipment for hospital rooms avoids stimulation to the patient as much as possible, and
! Since consideration was given to providing sufficient light, the light distribution downward was about 10%, and as shown in FIG. 5, the light was blocked in the 45'' direction.

[Problem that the invention seeks to solve]

The above lighting equipment for hospital rooms is suitable when the patient is resting, but depending on the patient's condition, the patient may require examination or emergency treatment, especially at night. In such cases, high illuminance directly below is required, and the above-mentioned lighting equipment cannot provide light distribution downward, which may cause inconvenience in medical treatment. Therefore, there is a need for a lighting fixture that normally provides horizontal and upward light distribution suitable for a person's rest, and can increase downward light distribution as needed.

[Means for solving problems]

Under normal conditions, 80-90% horizontally and upwardly
It emits a luminous flux of 100%, and the light distribution in the direction directly below is suppressed to 20" to 20" to obtain soft lighting that is mainly indirect light.However, by installing a movable reflector on the lighting equipment, the brightness directly below is reduced for treatment and treatment. When necessary, by operating the movable reflector, the light distribution characteristics of the lighting fixture are changed to increase the illuminance directly below.

[Effect]

The illuminating device for a hospital room according to the present invention includes a louver or a semi-translucent cover on the lower surface of the illuminating device, a side surface of the illuminating device being open or covered with a translucent cover, and a fluorescent lamp attached to the illuminating device. A reflecting plate is provided above the fluorescent lamp, and a movable reflecting plate curved along the optical axis of the fluorescent lamp is attached to be rotatable about the optical axis. therefore,
By positioning the movable reflector below the fluorescent lamp, the illuminance directly below is suppressed and light distribution is increased in the horizontal and upward directions.In addition, in a two-lamp lighting fixture, the movable reflector is placed to the side of the fluorescent lamp. By moving to .

In a single-lamp lighting fixture, the movable reflector is moved above or near the top of the fluorescent lamp.

Direct illumination or downward illumination can be increased.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

Fig. 1 is an external perspective view showing an embodiment of the illumination device for a hospital room according to the present invention, Fig. 2 is a partial sectional view of the above embodiment, and Fig. 3 is a diagram showing the state when illuminating in the horizontal direction. , (a) is a partial view, (b) is a vertical light distribution curve diagram, and Figure 4 is a diagram showing the state when irradiating directly below. (a) is a partial view, ( b) is a vertical light distribution curve diagram. In FIGS. 1 and 2, a louver 2 is provided at the center of the lower surface of a two-lamp fluorescent lighting fixture 1, and a translucent cover 3 is provided on the side surface of the lighting fixture 1.
A reflecting plate 5 having a substantially V-shaped cross section is provided above the fluorescent lamp 4, and a movable reflecting plate 6 curved along the optical axis of the fluorescent lamp 4 is rotated about the optical axis. The rotary knob 7 of the movable reflector plate 6 is provided on the outer end face of the luminaire 1. In this embodiment, one side of each of the V-shaped reflecting plates 5 is constructed with a double curved surface, but the shape is not limited to the E-shape, and in the case of a fluorescent lighting fixture, a flat plate may be used. Further, in this embodiment, the reflecting plate 5 and the movable reflecting plate 6 are specular reflecting plates in order to increase reflection efficiency. As shown in FIG.
~ When installed on the central aisle of a 6-bed hospital room, it blocks light in the direction of the eyes of the patient 7 (45° to 60° from directly below lighting fixture 1), and reduces the luminous flux directly below by 10 to 20%. And 80~
It was possible to obtain 90% horizontal and upward indirect luminous flux.

The position of the movable reflector 6 and the approximate vertical light distribution characteristics in this case are shown in FIGS. 3(a) and 3(b). In the case of a single-lamp fluorescent lighting fixture, by positioning the movable reflector 6 below the fluorescent lamp 4, it is possible to suppress the luminous flux directly below and obtain indirect light upward and horizontally. .

Next, when brightness directly below is required for the treatment or treatment of a person, operate the rotary knob 7 provided at the end of the lighting fixture 1 as shown in Fig. 4 (a). As shown in FIG. Since it is reflected by 5 and goes directly below, the horizontal and upward luminous flux is 20
~30%, and the luminous flux directly below could be increased to 70~80%. An outline of the vertical light distribution characteristics in this case is shown in Figure 4 (
In the case of the single-lamp lighting fixture shown in b), by adjusting the movable reflector so that it is located above or near the top of the fluorescent lamp, the luminous flux in the direct or downward direction can be increased. Effects of the Invention] As described above, the lighting equipment for a hospital room according to the present invention has the following advantages.

A louver or a semi-translucent cover is provided on the bottom surface of the fluorescent lighting fixture, the side surface of the lighting fixture is open or covered with a transparent cover, a reflector is provided above the fluorescent lamp, and the optical axis of the fluorescent lamp is By attaching a movable reflector curved along the axis so as to be rotatable around the optical axis, the ratio of the luminous flux directed upward and horizontally to the luminous flux directed directly below, of the light irradiated by the lighting equipment, can be adjusted. Since it can be adjusted freely, it is possible to obtain a lighting fixture for a hospital room that can provide illumination that corresponds to the time of bed rest and the time of therapeutic treatment.

[Brief explanation of the drawing]

Fig. 1 is an external perspective view showing an embodiment of the illumination device for a hospital room according to the present invention, Fig. 2 is a partial sectional view of the above embodiment, and Fig. 3 is a diagram showing the state when illuminating in the horizontal direction. , (a) is a partial cross-sectional view, (b) is a vertical light distribution curve diagram, and Figure 4 is a diagram showing the state when irradiating directly below, (a) is a partial cross-sectional view, (b) 5 is a vertical light distribution curve diagram, and FIG. 5 is a diagram showing the illumination state of the hospital room lighting equipment in the hospital room. DESCRIPTION OF SYMBOLS 1... Fluorescent lighting fixture, 2... Louver, 3... Translucent cover, 4... Fluorescent lamp, 5... Reflector, 6...
・Movable reflector. $3 Figure.

Claims (1)

[Claims] 1. Provide a louver or semi-translucent cover on the bottom surface of the fluorescent lighting fixture, open the side surface of the lighting fixture or cover it with a transparent cover, and provide a reflector above the fluorescent lamp. A lighting fixture for a hospital room in which a movable reflector curved along the optical axis is attached so as to be rotatable around the optical axis.