JPS6132992A - Illuminator - 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 Technical Field of the Invention The present invention relates to a lighting fixture whose lighting conditions can be remotely controlled using an optical remote control transmitter.

Technical Background and Problems Conventionally, transmitters for performing this type of remote control have directional control signals. Therefore, the lighting device must be operated toward the lighting device to be controlled, and the receiver that receives the signal is generally exposed on the outside of the lighting device. The reason for this is to prevent the influence of the lamp light and the attenuation of the control signal, but in order to expose it to the outside of the lighting equipment, it cannot receive the signal from the transmitter. A special structure and space are required to facilitate the lighting, and the appearance of the lighting equipment is unavoidably unsightly.

OBJECTS OF THE INVENTION The object of the present invention is to provide a lighting device that is easy to operate by remote control and does not damage the appearance of the device.

SUMMARY OF THE INVENTION In the present invention, since the receiver is built into the lighting cover together with the lamp, the receiver is not exposed to the outside, so the appearance of the appliance is not spoiled. Since it is a diffusion cover that diffuses light, if the signal light emitted by the directional optical remote control transmitter is within the range of the lighting cover, the lighting cover will diffuse the signal light and send the signal light to the receiver. Because the device transmits information, remote operation is easy, and the structure of the device is simple.

Embodiments of the Invention First, a fixture body 2 such as a chassis is provided on a ceiling surface 1, and a lighting cover 3 is detachably attached to this fixture body 2. This illumination cover 3 is a diffusion cover having light diffusing properties as shown in A of FIG. 2, and is different from a cover without light diffusing properties as shown in FIG. 2B. That is,
What is shown in FIG. 2 is a directivity graph showing the operating distance (m) with respect to the incident angle θ of the illumination cover 3 (the incident angle of the signal light from the optical remote control transmitter, which will be described later). A plurality of lamps 4 are attached to the lower surface of the appliance main body 2 inside such a lighting cover 3.

Further, a receiver 6 for receiving signal light from an optical remote control transmitter 5 is attached to the lower surface of the instrument main body 2 to which the lamp 4 is attached. This receiver 6 does not operate even when it receives the light from the lamp 4, but operates when it receives specific light from the optical remote control transmitter 5. That is, the optical remote control transmitter 5 generates a specific pulse signal, such as a pulse signal generated by a xenon flash, and the signal light is directional.

In such a configuration, when controlling the lighting, the operator operates the optical remote control transmitter 5 from below to radiate a light signal toward the fixture. If this optical signal hits the lighting cover 3,
Even if the direction is not toward the receiver 6, the illumination cover 3 serving as a diffusion cover diffuses the signal light and transmits it to the receiver 6. Therefore, even if the optical remote control transmitter 5 has directivity, it is not necessary to strictly target the receiver 6 with the optical signal, and it is sufficient to irradiate it roughly toward the instrument. Moreover, since the receiver 6 can receive the light diffused by the illumination cover 3 if the light-receiving surface of the receiver 6 faces the illumination cover 3, the installation position can be easily selected.

Further, since the light to which the receiver 6 responds is not lamp light, the installation location of the receiver 116 can be freely selected without considering the relationship with the lamp 4. That is, there is no need to provide a shielding plate or the like between the lamp 4 and the lamp 4. Therefore, the device structure is extremely simple.

Effects of the Invention As described above, the present invention provides a receiver that operates in response to an optical signal from an optical remote control transmitter inside the lighting cover that covers the lamp, and makes the lighting cover a diffusion cover that has light diffusing properties. If the light from the directional optical remote control transmitter illuminates the lighting cover, even if the light is not directed toward the receiver, it can be diffused and transmitted to the receiver for operation. Since the receiver does not operate with lamp light, there is no need to consider the positional relationship with the lamp, and since the receiver is installed inside the lighting cover, there is no risk of damaging the appearance of the appliance.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a longitudinal sectional side view, and FIG. 2 is a characteristic diagram showing the directivity of the lighting cover. 3... Lighting cover, 4... Lamp, 5... Optical remote control transmitter, 6... Receiver

Claims (1)

[Claims] A receiver that does not operate with lamp light but generates a control signal in response to a specific pulse signal from a directional optical remote control transmitter is installed inside a lighting cover that covers the lamp, and the lighting cover is attached to a receiver that generates a control signal in response to a specific pulse signal from a directional optical remote control transmitter. A lighting device characterized by having a cover.