JPH0642399B2 - Lighting equipment - Google Patents

Description

Description: TECHNICAL FIELD OF THE INVENTION The present invention relates to a lighting device capable of remotely controlling a lighting state using an optical remote control transmitter.

TECHNICAL BACKGROUND AND ITS PROBLEMS Conventionally, a lighting device in which this type of remote control is performed is generally provided so that the receiver is exposed on the outer surface of the lighting fixture. The reason for this is to prevent the receiver from being affected by the lamp light and to prevent the control signal from being attenuated.However, in order to expose it to the outer surface of the luminaire, the signal from the transmitter must be used. It is inevitable that the appearance of the luminaire deteriorates because it requires a special structure and space to make it easier to receive.

The control signal of the optical remote control transmitter is an optical signal in which control information is pulsed, and this optical signal is transmitted from the transmitter so as to have directivity. That is, in the optical signal transmitted from this transmitter, the emission direction with the highest radiant intensity is optically set. Therefore, when controlling the lighting equipment, it is necessary to aim and operate the transmitter so that the transmitting direction of the transmitter matches the target direction of the receiver.

By the way, when performing remote control operation of a lighting fixture attached to the ceiling surface, if you operate the optical remote control transmitter from a remote place in the room,
That is, the incident direction of the optical signal is incident on the luminaire in an inclined state. As described above, when the optical signal is incident on the lighting device while being inclined, the receiver may not operate, and the remote control operation may not be reliably performed.

An object of the present invention is to provide a lighting device in which remote control operation can be performed reliably and the appearance of a lighting fixture is not spoiled.

In order to achieve the above object, the present invention provides an optical remote control transmitter for transmitting an optical signal composed of directional pulsed infrared light, visible light, etc., a lamp and an operation with this lamp light. Although not provided, a receiver that operates by receiving an optical signal is provided, and an instrument body configured to control the lamp by the operation of the receiver, and the instrument body is attached to the receiver and the lamp over the instrument body. Provided is a lighting device including a lighting fixture including a lighting cover having a light diffusing property.

Action In the lighting device of the present invention, the receiver is provided in the fixture body inside the lighting cover together with the lamp, so the receiver is not visible from the outside of the lighting fixture.

Also, the lighting cover has a light diffusing property for the illumination light, but since it also has a diffusing effect on the optical signal, even if the optical remote control transmitter or receiver has a directivity, Is substantially improved by the lighting cover. That is, since the directivity is widened, the reaching distance of the optical signal to the receiver is extended.

Further, it is not necessary to strictly set the transmission direction of the optical remote control transmitter to the target direction of the receiver, and the transmission may be roughly directed to the lighting equipment.

First, a fixture body 2 such as a chassis is attached to the ceiling surface 1, and the fixture body 2 and the lighting cover 3 constitute a lighting fixture. A plurality of lamps 4 and a receiver 6 that operates by receiving an optical signal transmitted from an optical remote control transmitter 5 are attached to the lower surface of the device body 2 by the operation of the receiver 6. Performs control such that the lamp 4 blinks and dims. A lighting cover 3 is detachably attached to the fixture body 2 so as to cover the lamp 4 and the receiver 6. The lighting cover 3 is a light diffusing cover having a light diffusing property.

What is shown in FIG. 2 is an operating distance showing the maximum remote distance at which the receiver 6 can operate with respect to the incident angle θ to the lighting cover 3 (the incident angle of the optical signal transmitted from the optical remote controller transmitter described later). It is a characteristic diagram. A is a light diffusing lighting cover, B
Shows the operating distance characteristics of the lighting cover without light diffusion.

In the case of the illumination cover having no light diffusing property (for example, a transparent illumination cover) shown in B, most of the optical signal is incident on the illumination cover because the optical signal passes through the illumination cover without being diffused. Is injected inside. When the optical signal is incident from directly below the instrument body 2 at an incident angle of 0 °, the maximum operating distance extends, but when the incident angle θ increases, the maximum operating distance sharply decreases.

In the case of the illumination cover having the light diffusing property shown in A, since the optical signal is diffused and transmitted through the illumination cover, the optical signal is also incident on the illumination cover in a direction other than the incident direction. Therefore, even if the incident angle θ becomes large and the optical signal is incident on the luminaire with the incident direction inclined, the maximum operating distance does not change much.

The receiver 6 does not operate even when receiving the light of the lamp 4, and operates by receiving a specific optical signal from the optical remote controller transmitter 5. That is, the optical remote controller transmitter 5
Is a light source having a xenon flash, for example, and emits a specific pulse signal in which control information is pulsed, and the receiver 6 uses a filter or the like to emit light having a desired wavelength (for example, infrared light).
It is intended to receive only. Further, the optical remote controller transmitter 5 is optically designed so that the optical signal is transmitted with directivity.

In such a configuration, when performing lighting control, the operator operates the optical remote controller transmitter 5 below the lighting equipment to emit an optical signal toward the lighting equipment. When this optical signal is incident on the illumination cover 3, the illumination cover 3 having diffusivity diffuses the optical signal and transmits it into the illumination cover even if the incident direction is not the direction toward the receiver 6. The signal reaches the light receiving surface of the receiver 6 at a good incident angle.

Here, an experimental result in which the maximum operating distance is compared between the case where the diffusing lighting cover 3 is used for the lighting fixture and the case where the lighting cover 3 is not used is shown. A lighting fixture having a height of 0.1 m including the lighting cover 3 was attached to the ceiling surface 1 having a height of 2.4 m, and the optical remote control transmitter 5 was operated at a height of 1.0 m from the floor surface. Then, the optical remote control transmitter 5 is operated at the same floor surface gradually away from the floor surface point (reference value point) directly below the instrument body 2, and the point at which the receiver 6 is most distant from the reference point is used as a reference. It was measured as the maximum operating distance from the point.

The results are shown in Table 1 below.

The material of the lighting cover at this time was acrylic resin, and the lighting cover whose surface was light-diffused was used, but the material of the lighting cover may be glass, and the light-diffusion processing is a transparent material with a granular shape diffusion. It may be a mixture of materials. The wavelength of the optical signal is infrared light of about 940 nm, and the optical remote control transmitter 5
An LED was used as a light source.

From the above experimental results, it can be seen that the maximum operating distance is longer in the optical remote control lighting device using the diffusing lighting cover. This is because the optical signal is diffused by the lighting cover, so even if the angle of incidence on the lighting cover is large, the diffusion component of the optical signal that is incident in the direction orthogonal to the light receiving surface of the receiver is generated by the light diffusion. It is conceivable that parts such as a lamp provided in the instrument body will not be hidden and the incidence of the optical signal on the receiver will not be blocked.

That is, if the light-receiving surface of the receiver 6 faces the illumination cover 3, the receiver 6 can receive the optical signal diffused by the illumination cover 3, and the reaching distance of the optical signal to the receiver 6 is extended. Therefore, the installation position of the lighting fixture can be easily selected, and the receiver 6 can be reliably operated to perform the remote control operation. Moreover, even if the optical remote control transmitter 5 has directivity, it is not necessary to strictly set the transmission direction to the target direction of the receiver 6, and it is only necessary to roughly transmit to the device.

Further, since the light to which the receiver 6 responds is not the lamp light, it is possible to freely select the installation location of the receiver 6 on the instrument body 2 without considering the relationship with the lamp 4.
That is, it is not necessary to provide a shielding plate or the like with the lamp 4. Therefore, the instrument structure is extremely simple.

EFFECTS OF THE INVENTION The illumination device of the present invention includes an optical remote control transmitter that emits an optical signal composed of directional pulsed infrared light, visible light, etc., a lamp, and an optical signal that does not operate with this lamp light An instrument body provided with a receiver for receiving and operating, and configured to control the lamp by the operation of the receiver, and a light diffusive device attached to the instrument body over the receiver and the lamp Since the lighting fixture including the lighting cover is provided, even if the optical signal is incident on the lighting fixture at an inclination, the directivity of the optical signal is diffused by the lighting cover, so that the light signal is received by the receiver. The reach distance can be extended and the remote control operation can be reliably performed.

Even if the direction of the optical remote control transmitter is not toward the receiver, the directivity of the optical signal is diffused, so the optical remote control transmitter can be operated roughly toward the lighting equipment. The operation can be simplified.

Furthermore, since the receiver is provided in the fixture body inside the lighting cover together with the lamp, the receiver is not visible from the outside of the lighting fixture, and the appearance of the fixture is not impaired.

[Brief description of drawings]

The drawings show one embodiment of the present invention. FIG. 1 is a vertical sectional side view, and FIG. 2 is an operating distance characteristic diagram showing a maximum remote distance at which a receiver can operate. 3 ... Lighting cover, 4 ... Lamp, 5 ... Optical remote control transmitter, 6 ... Receiver

Claims (1)

[Claims] 1. An optical remote control transmitter that emits a directional pulsed optical signal; a lamp and a receiver that does not operate with the lamp light but operates by receiving the optical signal. A luminaire including a main body of a fixture configured to control the lamp by the operation of the main body, and a light diffusing lighting cover attached to the main body of the receiver to cover the receiver and the lamp. A lighting device characterized by the above.