JPH0364802A - Luminaire - Google Patents

Abstract

PURPOSE:To hinder a view of a lamp image from the back by coating an optical multilayer film for transmitting the infrared rays and for selectively reflecting the visible radiation on the surface of a reflecting material opposite to a lamp. CONSTITUTION:A base plate 3 of a reflecting material 2 is made of a synthetic resin film of which both surfaces are smooth, and sand blasting is treated on one surface thereof to form a rough surface, and a reflecting surface is set in response to the spot type flux distribution or the flat type flux distribution, and an optical multilayer film 4 is formed on this reflecting surface. The film thickness and the film layer of the optical multilayer film 4 is set so as to transmit the infrared rays and selectively transmit and reflect the visible radiation and convert the reflected light from the color temperature of a lamp 1 to the high color temperature. A die is formed in rotary secondary curved surface and the smooth surface 5 side is used as a reflecting surface to form a luminaire having the spot light type flux distribution, and the rough surface 6 side is used as a reflecting surface to form a luminaire having the flat light type flux distribution. The transmitted light of the back side of the reflecting material 2 is thereby diffused to prevent the glare, and the complementary color is seen to improve the color efficiency.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a spotlight-type lighting fixture that can be used in commercial facilities such as stores.

(Prior art) Spotlight-type lighting equipment uses a reflector made of a translucent material, such as a glass substrate, on which an optical multilayer film that transmits infrared rays and reflects visible light is formed. A device that reduces the amount of carbon dioxide has been proposed and put into practical use.

In order to create a spotlight with focusing properties, the reflecting surface of the reflector is formed into a smooth surface, and an optical multilayer film is formed on this surface. In addition, in a floodlight that provides diffusivity, the reflective surface of the reflector is formed into a rough surface similar to a matte surface of aluminum, and an optical multilayer film is formed on this surface.

If the reflective surface of the reflector is formed as a smooth surface, the back surface of the reflector is sandblasted or otherwise roughened to prevent the image of the lamp from being seen from the back side. Many of these have also been developed and put into practical use.

(Problem to be solved by the invention) However, in the case where the reflector is formed of glass and the substrate of the molded reflector is shaped like a spotlight, the reflective surface is made smooth and an optical multilayer film is coated on the surface. In addition, in the case of a flood light type, the reflecting surface is formed into a rough surface, and a dedicated type of reflector is required for each, resulting in inconveniences such as troublesome manufacturing.

Furthermore, in the case where the back side of the spotlight-shaped reflector is formed to have a rough surface, there are disadvantages such as additional manufacturing steps such as sandblasting, and high cost.

The present invention has been made in consideration of the above-mentioned circumstances, and is a lighting device that can easily produce a spotlight-type or floodlight-type reflector and prevent glare by preventing the lamp image from being seen from the back. The purpose is to provide

[Structure of the Invention] (Means for Solving the Problems) The lighting fixture of the present invention is made of a light-transmitting synthetic resin with one side formed as a smooth surface and the other side formed as a rough surface. ,
Infrared rays are transmitted through the surface facing the lamp.

It is characterized by being coated with an optical multilayer film that selectively reflects visible light.

(Function) By using a reflector with a smooth surface formed with an optical multilayer film and used as a reflective surface, the lighting device of the present invention can be configured as a lighting device with a spotlight-shaped light distribution that has a focusing property. Of the light emitted from the lamp, infrared rays are transmitted through the optical multilayer film and the substrate, and visible light is reflected by the optical multilayer film.

Since the other side of the reflector, that is, the back side, is formed with a rough surface, the transmitted light is diffused on the back side and the lamp image is not visible from the back side, making it possible to prevent glare. can.

In addition, by using a reflector with a rough surface formed with an optical multilayer film and used as a reflective surface, a lighting fixture with diffused flood light type light distribution can be constructed.

The roughening of the reflective surface results in diffused light, making it difficult to see the lamp image from the back side of the reflector, effectively preventing glare.

Then, the reflector can be selected using a type of mold, since the substrate part of the translucent synthetic resin is made smooth on one side and roughened on the other side, and can be used as a reflective surface in accordance with the desired light distribution. It is possible to form a reflective surface in a transparent manner, and manufacturing is also easy.

(Example) Embodiments of the present invention will be described with reference to FIGS. 1 to 4.

1 is a lamp, and this lamp 1 is, for example, a low voltage (7) 1
It is a 2V100W halogen lamp.

Reference numeral 2 denotes a reflector, and the reflector 2 includes a substrate portion 3 made of a transparent synthetic resin and a reflective surface of the substrate portion 3 that selectively transmits and reflects infrared light and visible light. It is formed with an optical multilayer film 4. The substrate portion 3 of the reflector 2 has one side 5 formed as a smooth surface and the other side 6 formed as a rough surface. In this embodiment, the reflector 2 is formed by forming a substrate part 3 made of polyimide resin film with a thickness of 125 μm into a rotationally quadratic curved surface, and a surface facing the lamp 1 is made of titanium oxide (T i02 ) and Silicon oxide (
An optical multilayer film 4 is formed by alternately laminating Si02).

In this embodiment, the substrate part 3 of the reflector 2 is formed by sandblasting one side of a synthetic resin film with smooth surfaces on both sides to form a rough surface, and reflects the light according to a spot type light distribution or a flat type light distribution. A surface is set, and an optical multilayer film is formed on this reflective surface.

In this embodiment, the optical multilayer film 4 transmits infrared rays emitted from the lamp 1, selectively transmits and reflects visible light, and converts this reflected light into a color temperature higher than that of the light from the lamp 1. For example, the film thickness should be irradiated with white light of 4,000 μm.

The membrane layer is set.

Further, the substrate portion 3 of the reflector 2 has a brownish color due to its material.

7 is a socket for the lamp 1, and 8 is a support for this socket 7. Reference numeral 9 denotes a storage tube that stores the support base 8; 10 denotes an arm that has one end fixed to the storage tube 9 and the other end fixed to a frame 11 provided on the front surface of the reflector 2;
It is made up of books. Reference numeral 12 denotes a fixture rotatably provided on one of the arms lθ, and a mounting portion 13 is provided at the tip of this fixture 12 for attachment to, for example, a ceiling surface.

Next, the operation of this embodiment will be explained with reference to FIGS. 2 and 3. In order to form a lighting fixture with a spotlight-type light distribution that provides focal light, as shown in FIG. Then, an optical multilayer film 4 is applied to the reflective surface by a conventional method. A lighting fixture is formed by optically opposing the reflecting surface of the reflector 2 thus formed to the lamp 1.

Then, when the lamp 1 is turned on, part of the visible light emitted from the lamp 1 is reflected by the optical multilayer film 4 of the reflector 2, and the complementary color of the reflected light is transmitted through the reflector 2 together with infrared rays. In this example, the reflected light is white with a high color temperature,
The complementary color of the reflected light is blue, which is absorbed by the substrate portion 3 and becomes orange. The other surface of the reflector 2 In this embodiment, the back side is formed to be a rough surface, so the light that passes through the reflector 2 is diffused on the back side, making it difficult to see the lamp image and allowing direct viewing. Moreover, the complementary color light appears pale and brings about a color effect.

In addition, in order to form a lighting fixture with a flood light type light distribution that provides diffusivity, the rough surface 6 side of the substrate portion 3 of the reflector 2 shown in FIG. An optical multilayer film 4 is applied to the reflective surface by a conventional method. A lighting fixture is formed by optically opposing the reflecting surface of the reflector 2 thus formed to the lamp 1.

When the lamp 1 is turned on, part of the visible light emitted from the lamp 1 is diffusely reflected by the optical multilayer film 4 of the reflector 2, and the complementary color of the reflected light is reflected on the reflector 2 along with infrared rays.
Transparent. At this time, since the opposite side of the reflector 2 is formed with a rough surface 6, it is diffusely reflected, and the lamp image becomes difficult to see on the back side of the reflector 2, allowing direct irradiation, and the complementary color light appears pale. to create a color effect.

Although the present invention has been described in detail with respect to the above embodiments, the present invention allows various other embodiments. For example, the lamp may be a compact high intensity discharge lamp.

Further, the reflector may be formed of a film such as Teflon or polyetherimide.

[Effects of the Invention] As detailed above, the present invention provides a reflector made of a light-transmitting synthetic resin with one side formed as a smooth surface and the other side formed as a rough surface. Since the surface number is coated with an optical multilayer film that transmits infrared rays and reflects visible light, it is possible to form a reflector that matches the desired light distribution by selecting a type of reflector substrate, which facilitates manufacturing. In addition, the transmitted light on the back side of the reflector is diffused, the lamp image becomes visible, glare is prevented, complementary color light is visible, and the color effect can be improved.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is an enlarged sectional view of a part of the reflector substrate, and FIG. 2 is an enlarged view of a part of the reflector with the smooth surface of the reflector substrate as a reflective surface. 3 is an enlarged sectional view of a part of the reflector in which the rough surface of the reflector substrate is a reflective surface, and FIG. 4 is a side view of a part of the lighting device in section. 1...Lamp, 2...Reflector. 3... Substrate part of reflector, 4... Optical multilayer film. 5...Smooth surface, 6...Rough surface.

Claims (1)

[Claims] (1) A lamp; A reflector disposed optically opposite to the lamp; The reflector is a transparent transparent material having a smooth surface on one side and a rough surface on the other surface. 1. A lighting device characterized in that it is made of a photosensitive synthetic resin and has an optical multilayer film that transmits infrared rays and selectively reflects visible light on the surface facing the lamp.