JPS6219019B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a discharge lamp device.

The purpose of this is to install a movable deflection body inside the discharge tube, and by moving this deflection body, the discharge path can be controlled and the main light distribution to be directed in any direction, which is called polarized light distribution, can be easily achieved. It is an object of the present invention to provide a discharge lamp device which is capable of improving the efficiency, changing the light color, and improving the toning effect.

Embodiments of the present invention will be described in detail below with reference to the drawings.

First of all, FIGS. 1 to 5 show a first embodiment of the present invention, and in this embodiment, inside the discharge tube,
A deflection plate as a deflection body is disposed over substantially the entire length of the discharge tube, and the deflection plate is movable on the inner diameter of the discharge tube.

In FIG. 1, 1 is a discharge tube, and slide holders 2 formed along the inner diameter of the discharge tube 1 are disposed near both ends thereof. This slide holder 2 has leg pieces 2a that come into contact with the tube wall, and a pair of base pieces 2c that form a slide groove 2b. is inserted, and this deflection plate 3 is movable on the inner diameter of the discharge tube 1. In addition, in the figure, 4 is an electrode.

The deflection plate 3 has a length that spans approximately the entire length of the discharge tube 1, and is a flat plate with an approximately rectangular outer shape whose width is approximately 1/2 of the inner diameter of the discharge tube 1, and is made of glass, ceramic, metal, or the like. It consists of

FIG. 2 is a modification of FIG. 1. In this example, magnetic material 5 is attached near both ends of the deflection plate 3 in the length direction, and the outside of the discharge tube 1 is coated to correspond to the magnetic material 5. A magnet 6 is placed on the
By rotating it approximately 180 degrees around the discharge tube 1 or by moving it up and down on a plane parallel to the surface of the deflection plate 3, its magnetic attraction force is applied to the magnetic body 5, and the deflection The plate 3 is configured to be moved up and down along the inner diameter of the discharge tube 1. Here, the position and number of the magnetic bodies 5 are not limited to the illustrated example, but by providing them near both ends in the length direction of the deflection plate 3 and arranging the magnets 6 corresponding thereto, Since the deflection plate 3 is supported at both longitudinal ends and then moved, the deflection plate 3 can be moved smoothly. The magnets 6 may be either permanent magnets or electromagnets. If electromagnets are used, a pair of them are placed at radially opposite positions outside the discharge tube 1, and the deflection is achieved by alternately turning them on and off. The plate 3 can be moved.

By making the deflection plate 3 movable on the inner diameter of the discharge tube 1 in this manner, various types of light distribution are possible as described below.

That is, as shown in FIG.
If it is placed above the discharge tube 1, the impedance will be high on the left and right sides of the deflection plate 3 in the cross section of the discharge tube 1, so that the discharge will occur in a wide cross-sectional space, that is, in the cross section of the discharge tube 1. The main discharge region 7 occurs downward from the center of the discharge tube 1, and as shown in the light distribution curve a in the figure, the main light distribution is obtained below the discharge tube 1, while a moderate light distribution is also obtained above. be.

Figure B shows a case where the deflection plate 3 is moved below the cross section of the discharge tube 1 using the magnet 6, contrary to the case of A described above, and the light distribution curve a is also upward, contrary to the case of A. The main focus is on the distribution of light to.

Figures C and D show, for example, that a pair of magnets 6 are disposed at radially opposite positions outside the discharge tube 1, and their magnetic fields are applied to the deflection plate 3, thereby increasing the magnetic attraction force of the magnets 6. A case is shown in which the deflection plate 3 is disposed approximately at the center inside the discharge tube 1 by making them counterbalance each other. In this case, other magnetic field generating means or adjacent conductors (none of which are shown) are arranged outside the discharge tube 1 in the left and right direction of the deflection plate 3, and by operating these, the main discharge region 7 can be It can be formed on the right or left side of the deflection plate 3, as shown in FIG.

As described above, by moving the deflection plate 3 on the inner diameter of the discharge tube 1, the discharge path can be freely controlled, and various light distribution patterns can be created that can freely change the light distribution characteristics in the vertical and horizontal directions of the discharge tube 1. In addition, it has the advantage of improving efficiency compared to ordinary lamps by promoting diffusion recombination of charges to the tube wall through deflection discharge using the deflection plate 3, and by reducing self-absorption in the emission spectrum. have

FIG. 4 shows a structure in which the color of light is variable in addition to the structures shown in FIGS. 1 to 3 described above.

That is, in the cross section of the discharge tube 1, a warm white phosphor 8a such as calcium halophosphate having a color temperature of about 3000 is applied to the upper semicircular part of the inner peripheral surface of the discharge tube, and on the other hand, the lower semicircular part has a color temperature of about 3000. Daylight-colored phosphor 8b like calcium halophosphate with approximately 7000 〓
Apply. However, as shown in FIG. 4A, the magnet 6
If the deflection plate 3 is placed above the inside of the discharge tube 1, the downward light distribution will be the main component, and the color temperature will be approximately 6000 to approximately 6000.
A daylight color of 6500㎜ can be obtained, and if the deflection plate 3 is placed below as shown in FIG. Therefore, it is also possible to use different color temperatures depending on the season.

Furthermore, in correspondence with the above-mentioned FIG. 3, the inner peripheral surface of the discharge tube 1 is divided into four equal parts as shown in FIG.
d. By separately painting the green phosphor 8e on the lower side and the blue phosphor 8f on the left, the main discharge area 7 is created as the deflection plate 3 moves up and down as shown in FIG. A smooth change in light color from blue to red can be realized by the transition of , and a discharge lamp device can be provided that enables interesting color toning.

In this way, in this first embodiment, the deflection plate 3 as a deflection body is inserted inside the discharge tube 1, and this deflection plate 3 is made movable on the inner diameter of the discharge tube 1, so that the structure is extremely simple. This allows for arbitrary polarized light distribution based on the control of the discharge path, easy switching of the main irradiation direction, improved efficiency, and a simple construction of a variable color lamp that can freely change the light color. It has the advantage of increasing interest, comfort, and economy.

Next, based on FIGS. 6 to 8, the second embodiment of the present invention will be described.
An example will be explained.

In this embodiment, instead of the deflection plate movably formed on the inner diameter of the discharge tube in the first embodiment, one long edge is pivoted on a part of the inner peripheral surface of the discharge tube, It has a substantially flap-shaped deflection plate whose other long edge is a free end and which is entirely swingable inside the discharge tube.

First, in FIG. 6, 1 is a discharge tube as described above, and 8 is a phosphor uniformly coated on the inner peripheral surface of the discharge tube 1. Reference numeral 9 denotes a deflection plate as a deflection body, which has a length spanning almost the entire length of the discharge tube 1, a width of about 1/2 to about 3/4 of the inner diameter of the discharge tube 1, and an outer diameter of It has a flat, generally rectangular shape, and is made of glass, ceramic, etc., as described above.
A pair of pivot protrusions 9a are connected in the vicinity of both ends in the longitudinal direction of one long edge of the deflection plate 9, and the pivot protrusions 9a are connected to the inner peripheral surface of the discharge tube 1 near both ends in the tube length direction. Each of the deflection plates 9 is latched to a support portion 10 provided in a part thereof, so that the deflection plate 9 can swing in a substantially flap shape inside the discharge tube 1 with the other long edge as a free end. In addition, in the figure, 11 is a stem,
12 is a cap having a cap pin 13, 14 is a lead-in wire, and 15 is an electrode filament whose surface is coated with an electron radioactive substance. Furthermore, a predetermined amount of mercury and rare gas are sealed inside the discharge tube 1.

Although not shown, at least a portion of the deflecting plate 9 is coated with a magnetic material, or the deflecting plate 9 is coated with a magnetic material.
At least a part of the magnetic material is made of magnetic material,
As shown in FIG. 7, due to the magnetic attraction of the magnetic material by the magnet 6 disposed outside the discharge tube 1,
The deflection plate 9 is made swingable within the discharge tube 1 around the long edge on the side of the pivot projection 9a.

As shown in FIGS. 7A and 7B, this action can be achieved by arranging the magnet 6 on the right or left side of the figure with the pivot point of the deflection plate 9 as a boundary, so that the deflection plate 9 can respond to the attraction action of the magnet 6. Therefore, it is stabilized by swinging to the right or left side, and the deflection plate 9 forms a discharge path that divides the cross-sectional area of the discharge tube 1 into two, wide and narrow. Generally, in this type of discharge phenomenon, if there are multiple discharge paths in the discharge tube 1, the path with the lowest discharge impedance (for example, the path with the largest discharge cross section)
It has the property of passing through. Therefore, when the deflection plate 9 is located at the position shown in FIG. 7A, the main discharge area 7 is unevenly distributed in the lower left, and conversely, in the figure 7B, the main discharge area 7 is unevenly distributed in the lower right. Depending on the position of the deflection plate 9 within the discharge tube 1, a light distribution characteristic biased in a specific direction can be obtained. Note that b in the figure indicates a light distribution curve.

In addition, such deflected discharge promotes the diffusion and recombination of charges within the tube to the tube wall and reduces self-absorption in the emission spectrum, thereby improving efficiency and making the lamp as a whole more efficient than a normal lamp.

In FIG. 8, in place of the phosphor 8 in FIG. 6, phosphors 8g and 8h of different types with different luminescent colors are placed on the right semicircle and left semicircle of the inner peripheral surface of the discharge tube 1, respectively.
are applied respectively. For example, 8g of phosphor
When the phosphor 8h is blue and the phosphor 8h is red, the main discharge region 7 can be unevenly distributed on the left and right sides of the deflection plate 9 depending on the swinging position of the deflection plate 9, and various colors such as red, blue, and a mixture thereof can be produced. Light can be irradiated in a desired direction. Incidentally, the phosphors 8g and 8 in FIG.
Of course, the type of h and the position where it is applied are not limited to the examples mentioned above, and it can be further improved by increasing the number or changing the area ratio to which it is applied.
A wide variety of toning effects can be obtained.

As described above, according to the second embodiment, since the deflection plate 9 as a deflection body can be swung in a substantially flap shape inside the discharge tube 1, the discharge path can be controlled as in the first embodiment. This method has various effects such as being easy to perform, facilitating polarized light distribution, improving efficiency, and configuring the light color to be variable.

Next, FIGS. 9 to 12 show a third embodiment of the present invention, in which a deflection tube as a deflection body is arranged eccentrically along the length direction of the discharge tube. The deflection tube can be rotated eccentrically within the discharge tube.

In FIG. 9, 1 is a discharge tube, 11 is a stem,
Reference numeral 15 denotes an electrode filament, and a central axis 16 that coincides with the axis of the discharge tube 1 is installed between the stems 11 at both ends of the discharge tube 1 . Further, a deflection tube 17 as a deflection body having a diameter of approximately 1/2 of the inner diameter of the discharge tube 1 is disposed inside the discharge tube 1 along the longitudinal direction of the tube. The central pivot 16 passes through and is fixed along the wall, and the deflection tube 17 can eccentrically rotate within the discharge tube 1 about the central pivot 16.

Although not shown in FIG. 9, magnetic materials are coated on appropriate positions inside and outside the deflection tube 17, for example, on a portion of the inner peripheral surface near both ends of the deflection tube 17 in the tube length direction. As in the first embodiment, the magnet 6 is disposed outside the discharge tube 1 so as to correspond to the magnetic material, and by rotating the magnet 6 around the discharge tube 1, the magnetic attraction force is applied to the magnetic body. It is configured so that the deflection tube 17 can be rotated by acting on the magnetic material.

However, as shown in FIG. 10, when the deflection tube 17 is positioned above the cross-section of the discharge tube 1 by the action of the magnet 6, the discharge tends to occur in a wider cross-sectional space with low discharge impedance. Therefore, the main discharge region 7 is formed below the deflection tube 17. That is, one magnet 6 is placed around the discharge tube 1.
By rotating, the main discharge area 7 moves 360 degrees around the central axis 16, and the magnet 6
By rotating the deflection tube 17, the discharge path can be freely controlled and a desired polarized light distribution can be obtained. In addition, in FIG. 10, c is a light distribution curve.

Furthermore, as shown in FIG.
An incandescent phosphor 8i is provided, and a daylight to blue-white phosphor 8j with a color temperature of approximately 7000 or more is placed in the lower semicircle.
At the same time, by coating the outer surface of the deflection tube 17 with a phosphor 8k having a color temperature of approximately 5000〓, if the main discharge region 7 is unevenly distributed at the position shown in FIG. Light distribution is the main focus, and the luminescence is mainly daylight with a color temperature of about 6000 to about 6500, where the blue color predominates. On the other hand, when the deflection tube 17 is rotated 180 degrees and positioned below the discharge tube 1 as shown in FIG. It is possible to obtain mainly warm white light emission.

In addition, as shown in FIG. 12, the inside of the discharge tube 1 is divided into four equal parts as in the case of FIG.
By painting the phosphors 8l, 8m, 8n, and 8o in different colors of blue, the main discharge area 7 moves with the eccentric rotation of the deflection tube 17, resulting in a smooth light color change from blue to red. is obtained, and the toning effect is also high.
It is preferable that the inner circumferential surface of the deflection tube 17 be coated with a white phosphor or a simple reflective or diffusive coating.

In this way, also in the third embodiment, the discharge tube 1
By providing the deflection tube 17 as a deflection body whose inner part can be rotated eccentrically, efficiency can be improved due to polarized light distribution and an increase in charge diffusion and recombination rate based on the uneven distribution of the main discharge region 7. It has advantages such as being able to make the light color variable.

As explained above, according to the present invention, a movable deflection body, that is, the deflection plate 3 or 9, or the deflection tube 17, having a length extending over substantially the entire length of the discharge tube in the longitudinal direction of the discharge tube is disposed inside the discharge tube. By moving these deflectors in various ways, the main discharge area can be set arbitrarily, making it easy to polarize the main light in any direction with an extremely simple configuration. This has the effect of improving light distribution characteristics and improving efficiency.

Furthermore, by coating the inner circumferential surface of the discharge tube with multiple types of phosphors, the light color can be easily changed, making it possible to use lighting according to the season and improving the color toning effect, making it both economical and useful. It has advantages such as being able to improve sexual performance.

[Brief explanation of the drawing]

1 to 5 show a first embodiment of the present invention, in which FIG. 1A is a cross-sectional view, FIG. 2B is a partially omitted perspective view, and FIGS. A partially omitted perspective view showing a modification of the figure, FIGS. 3A to 3D are explanatory views for showing light distribution characteristics, and FIGS.
B is a sectional view showing another modification, FIG. 5 is a sectional view showing another modification, and FIGS. 6 to 8 show a second embodiment of the present invention. A is a cross-sectional view along the inner diameter direction, B is a cross-sectional view along the tube length direction, FIG. 9 to 12 show a third embodiment of the present invention, and FIG. 9A is a sectional view taken along the inner diameter direction, and FIG. 10 are explanatory diagrams for showing light distribution characteristics, FIGS. 11A and 11B are sectional views showing a modification of FIG. 9, and FIG. 12 is a sectional view showing another modification. be. 1... Discharge tube, 7... Main discharge area, 3, 9...
Deflection plate, 16...center axis, 17...deflection tube.

Claims (1)

[Scope of Claims] 1. A movable deflection body having a length extending over substantially the entire length of the discharge tube is disposed inside the discharge tube, and the main discharge area is moved according to the position of the deflection body. A discharge lamp device comprising: 2. As a deflection body, a deflection plate having a substantially rectangular outer shape with a width of approximately 1/2 of the inner diameter of the discharge tube is formed, and the deflection plate is placed between the opposing tube walls of the discharge tube on the inner diameter of the discharge tube. The discharge lamp device according to claim 1, which is movable. 3 As a deflector, the width should be approximately 1/2 to the inner diameter of the discharge tube.
A deflection plate having a substantially rectangular outer shape with a diameter of about 3/4 is formed, one long edge of the deflection plate is pivoted to a part of the inner peripheral surface of the discharge tube, and the other long edge is pivoted to a part of the inner circumferential surface of the discharge tube. 2. The discharge lamp device according to claim 1, wherein the free end is swingable in a substantially flap shape inside the discharge tube. 4. Claim 1, in which a deflection tube is formed along the longitudinal direction of the discharge tube as a deflection body, and the deflection tube is eccentrically rotatable inside the discharge tube about the axis of the discharge tube. The discharge lamp device described. 5. Claims 1 and 5, in which the inner peripheral surface of the discharge tube is painted with a plurality of types of phosphors having different color temperatures, and the light color is changed by moving the main discharge area as the deflector moves. The discharge lamp device according to item 2, 3, or 4.