KR100259788B1 - Lamp using halide gas valve and method of the valve coating - Google Patents

Abstract

PURPOSE: A lamp using halide gas valve and a coating method of the same are provided to be capable of excellently displaying colors, shielding ultraviolet ray to prevent the denaturation of an object to be illuminated, lengthening the life of a bulb by promoting the recycling cycle of a halide lamp, and reducing firing danger by reducing heating value. CONSTITUTION: A bulb has a constant shape by hard glass material, and a filament within the bulb is electrically connected to an external lead terminal through a Mo thin film. A plurality of dielectric multi thin films are alternately coated on a surface of the bulb, and selectively transmits lights in accordance with the wavelength of the lights and reflects the reminder lights toward the interior of the bulb, thereby forming a halide cycle. Preferably, TiO2 and SiO2 are used as the material of the multi thin films.

Description

Lighting fixture using halogen bulb and coating method of this bulb

The present invention relates to a luminaire using a halogen bulb and a coating method of the bulb, and more particularly, to allow only the light of a desired color to be irradiated on the subject to diversify the production of space, and to block ultraviolet rays. The present invention relates to a luminaire and a coating method of a bulb used in the luminaire to prevent deterioration and to extend the life of the bulb by increasing the halogen cycle.

Lighting fixtures have the effect of creating a more luxurious and quiet atmosphere by cozily creating spaces in the interior field, giving psychological stability and increasing color.

In many cases, these luminaires use halogen lamps that can withstand high temperatures and have little blackening of the pipe walls, which use tungsten halides that are transparent and easy to evaporate.

When the tungsten halide mentioned above is heated to a high temperature of 2000 degrees or more by convection, the tungsten halide is decomposed and tungsten is returned to the filament and the halogen is diffused.

When the halogen reaches the wall of the tube, it again undergoes a halogen regeneration cycle that catches tungsten and returns it to the filament. This regeneration cycle is known to greatly affect the life of the lamp.

However, halogen lamps used in lighting fixtures can play a role as lighting fixtures when various colors can be produced. Therefore, in most cases, colored light is coated on the inner surface of the reflective member to be combined with the bulb, and the light emitted from the bulb is reflected. By allowing it to be reflected from the coating surface, the light of the desired color is obtained.

This method tends to deteriorate the subject by the ultraviolet light because no means for blocking the ultraviolet light emitted from the bulb is devised.

In addition, since the light energy emitted from the bulb cannot be blocked, the halogen regeneration cycle does not proceed satisfactorily, resulting in a decrease in efficiency and shortening the life of the bulb.

In addition, since ultraviolet rays penetrate the bulb and collide with the reflecting member, the reflecting member is brought to a considerably high temperature, and there is a risk of fire when used as a luminaire.

In addition, conventional halogen lamps do not only emit the desired color from the bulb, but because all the light is emitted and then color is output in the color coated on the reflective member, color rendering (color rendering) is deteriorated and fatigue is aggravated. It also causes psychological anxiety.

The present invention has been invented to solve the problems of the prior art as described above, the object of the present invention is excellent in color output, blocking the ultraviolet rays to prevent the deterioration of the subject, to facilitate the regeneration cycle of the halogen lamp The present invention provides a luminaire using a halogen bulb and a coating method of the bulb, which can extend the life of the bulb and reduce the risk of fire by reducing the amount of heat generated.

A luminaire for realizing the object of the present invention as described above is a bulb having a filament therein electrically connected to an external power source, and coated on the surface of the bulb to selectively light according to the wavelength of light It includes a multi-layer dielectric thin film that transmits the light and the remaining light is reflected back into the bulb to achieve a halogen cycle, and a half-season member combined with the bulb to reflect the light from the bulb to the object side.

1 is a front view of a bulb according to the present invention.

2 is a perspective view of a reflecting member used in the present invention.

3 is a side cross-sectional view of a lighting device according to the present invention.

4 is a front view of a bulb that may be used in another embodiment of the present invention.

5 is a view for explaining the bulb coating method according to the present invention.

6 is a functional diagram for explaining that the bulb according to the present invention transmits only light of a desired color.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 is a side view of a halogen lamp used in a luminaire according to the present invention, and Fig. 2 is a perspective view of a reflecting member to which the halogen lamp is coupled, and the bulb 2 is of a constant shape made of a hard glass material such as quartz glass. The filament 4 positioned in the inner space of the bulb is electrically connected to the external lead terminal 8 through the thin plate 6 made of molybdenum.

In the portion where the molybdenum thin plate 6 is located, the bulb is pressed so that the lead terminal 8 and the welded portion cannot be separated by flow or the like.

The present invention provides a color discrimination means capable of transmitting only light of a desired color to the outer surface of the bulb 2 as described above.

Such color screening means may consist of a plurality of colored layers, in which the plurality of dielectric multilayer thin films 10, 12 alternate from the surface of the bulb 2, as can be understood from the partial enlarged view of FIG. Coated with.

These multilayer thin films 10 and 12 may be TiO ₂ and SiO ₂ . The present embodiment is not limited to these materials, and titanium-based metal oxides or silicon-based metal oxides may be used.

The titanium-based metal oxide is a material having a high refractive index of light, and the silicon-based metal oxide is a material having a low refractive index of light. Therefore, the use of such a material is required for the color (refractive index) of light emitted from the filament. It is possible to obtain the effect of transmitting only the light of the bulb to the outside of the bulb. A description of this refractive index will be understood through FIG. 6 described later.

The refractive index of TiO ₂ is about 2.3, the refractive index of SiO ₂ is 1.46, and the light emitted from the filament has the characteristic that the wavelength of light having each color gradually increases from the infrared side to the ultraviolet side. By properly adjusting the thickness of the light can transmit only the desired color.

The method of coating the dielectric multilayer thin films 10 and 12 includes a container 22 containing a titanium-based material and a container containing a silicon-based material in the chamber 20 as shown in FIG. 24), the heat generating means 26 made of a heater is placed inside the chamber, and the power is supplied to the chamber to heat the interior of the chamber from about 300 ° C to 400 ° C. Extract and draw a vacuum from about 10 ^-5 Torr to 10 ^-6 Torr.

In such a vacuum state, the high frequency heater 30 heats one of the vessels containing the metal oxide so that the metal oxide, for example, TiO ₂ contained in the vessel, is evaporated.

Since the metal oxide evaporated by this method can be scattered to the upper side of the chamber, by placing the bulb inside the upper side of the chamber, the metal oxide is coated on the inner surface of the bulb.

At this time, since the amount of coating will increase in the bottom side in the state where the metal oxide is located in the upper side of the chamber, the bulb may be rotated by rotating the jig 34 holding the bulb through the rotation driving means 32 such as a motor. Coating can be carried out with a uniform thickness over the entire outer peripheral surface of (2).

After the coating is made, the coating may be performed in the same manner as described above while heating the vessel not evaporated by the high frequency heating means to evaporate the metal oxide.

At this time, the titanium-based and silicon-based metal oxides must be alternately heated to form a layer having a high refractive index and a low refractive index.

In this manner, a plurality of dielectric thin films may be provided on the surface of the bulb 2 as shown in FIGS. 1 and 6.

Such dielectric multilayer thin films 10 and 12 may have light having the smallest wavelength length when light emitted from the light source 36 is transmitted through the bulb 2 to the outside, as can be understood through FIG. 6. 2) does not penetrate the thin film coated closest and is refracted to enter the bulb 2 again.

The light with the next smaller wavelength is then refracted by the thin film layer and reentering into the bulb. In this way the light passing through the outermost thin film layer can be purple, orange or red, for example.

This can be changed to any thickness and by coating several layers of the dielectric thin film layer so that only light of a desired color can be transmitted.

In this case, since the ultraviolet rays do not pass through the layers because the wavelength is small, the ultraviolet rays are irradiated onto the subject, thereby preventing the subject from being deteriorated.

The present invention can be used as a luminaire capable of irradiating only a desired light in a desired direction by being used in combination with a bulb having such a dielectric multilayer thin film and a reflecting member 40 as shown in FIG.

Reflecting member 40 provided in this embodiment is made of a large portion of the exposed portion exposed to the atmosphere side, the inner reflection surface is composed of a plurality of inclined surfaces 42 to irradiate the light from the bulb at a constant angle. Has a configuration.

As described above, when the bulb 2 provided in the present embodiment is coupled to the reflective member 40 as shown in FIG. 3 and used as a lighting device, the reflective member 40 does not transmit a lot of light energy as described above. The light energy received by 40 is much smaller than before.

Therefore, it is possible to solve the problems that may be caused by heating to a high temperature by light energy as in the prior art.

4 illustrates a bulb according to another embodiment of the present invention, in which the dielectric thin film layer is the same, but a black layer (eg, carbon) that can block all light transmission at the tip of the bulb 2 is shown. 44) is coated so that all light from the bulb can be irradiated to the subject side only through the reflecting member.

This is particularly advantageous than the bulb of the above-described embodiment when irradiating light toward the subject as a luminaire.

As described above, the lighting fixture using the halogen bulb according to the present invention can increase the color distribution with a high distribution ratio on the subject surface from the visual point of view, and can use only the light of a desired color for lighting, so the color output is excellent and psychological The effect is to maximize the sense of stability.

In addition, it can block ultraviolet rays, minimizing the deterioration of the subjects irradiated by the light for a long time, and reflecting light energy can increase the inherent halogen cycle of the bulb, which can increase the life of the bulb. In addition, since a large amount of light energy is blocked, the reflective member is not heated to a high temperature, thereby reducing the risk of fire that may occur in a lighting fixture.

Claims (3)

A bulb having a filament electrically connected to an external power source therein, and coated on the surface of the bulb to selectively transmit light according to the wavelength of light, and the other light is reflected back into the bulb to generate a halogen cycle. And a halogen bulb including a dielectric multilayer thin film and a half member which is combined with the bulb and reflects light emitted from the bulb to the object side. The luminaire of claim 1, wherein the distal end of the bulb uses a halogen bulb coated with a black layer. While vacuuming the interior of the chamber with a constant internal space, an uncoated bulb is placed inside the upper side of the chamber, rotated and one of the two materials placed inside the chamber is rotated at a high frequency outside the chamber. A method of coating a bulb of a luminaire using a halogen bulb that is heated to allow evaporation to be coated on the outer surface of the bulb, and then another material is evaporated in the same manner to be coated on the first coated surface.

Images