JPS6029162B2 - Light source installation device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a light source support device that can be submerged in water, and more particularly to such a device used in fountains, swimming pools, and the like.

Several different types of submersible light source skirting devices are available which are widely used inside fountains to enhance the presentation of fountains and inside swimming pools to provide night illumination light.

A sealed beam device is particularly effective as a light source that can be immersed in water. Sealed beam devices typically have a concave reflective surface made of glass and coated with silver to reflect light. The front of the sealed beam device is glass,
It can have a contoured surface to produce a focused or diffuse beam of light. Sealed beam devices that can be immersed in water tend to be somewhat large in size to match the dimensions of the sealed beam. Unfortunately"
Sealed beam equipment is not readily available throughout the world, and in some cases does not offer all the voltage ranges used worldwide. Therefore, it is somewhat restrictive to design a light source device that uses a sealed beam and can be immersed in water. Another form of submersible lighting is the standard incandescent light bulb.

However, incandescent light bulbs have a low luminous intensity. Another form of lighting that provides high luminous intensity is what is commonly referred to as a quark halogen bulb.

Quar halogen light bulbs usually have an elongated cylindrical shape;
It is housed in a quartz bulb, within which the filament is placed in halogen gas. The light generated from this light source has a very high luminous intensity. However, the light source temperature during operation is, for example, 927-98.
700-18000F), which is very high. When such a light source is mounted in a submersible light source skirting device, the reflective surface, usually formed by a separate dish inserted inside the housing, becomes overheated. The reflective surface becomes burnt or discolored to the extent that its reflectivity is significantly reduced, thus impairing the luminous intensity of the light source. Quartz halogen light sources have been used for lighting swimming pools.

In this case, the bulb housing is submerged in water to cool the housing. A40 is an example of such pool lighting.
There is a type 0 hemming device, which is manufactured by PEM Fountain Co., Ltd. (P
EN Fountain Company). This installation device has a frustoconical housing,
A light source is arranged inside this housing. Heat from the light source heating the flat frustoconical surface is dissipated by conduction into the pool water. The position of the light source is fixed with respect to the flat surface of the housing. The submersible light source skirting device of the present invention solves the above problems by providing a compact light source whose intensity of light can be easily adjusted from a spotlight to a flood light.

The submersibly sealed light source skirting device has an hourglass shape with a concave light-reflecting surface on the upper interior and a flared flange portion on the lower side with a constricted neck with reduced material volume at the interconnection of the two. Includes fin ball housing.

A light source socket support is removably attached to the flared flange portion of the housing. The light source socket support is sealingly joined to the flared flange portion of the housing. An elongated high intensity, high temperature operating quartz halogen bulb is replaceably mounted in a light source socket secured to a light source socket support. The housing has a hole in the constricted neck at the bottom of the reflective surface, which hole is aligned with the light source socket. An elongated light source extends through the hole into the space defined by the reflective surface, where the longitudinal axis of the light source coincides with the principal axis of the concave reflective surface. The device further includes a transparent cover for the open end of the housing that is sealingly attached to the housing via a rubber gasket. The housing is submerged in water during use, so that when exposed to the high temperatures generated by the operating shaft bulb, the surrounding water cools and maintains a reflective column of concave light-reflecting surfaces.

Further, the concave light-reflecting surface has a circumferential lip portion on the inner circumferential side of the rubber gasket, which protrudes above the rubber gasket and forms an upper continuous portion of the concave light-reflecting surface. The location of the light source socket is predetermined by the length of the elongated bulb in positioning the bulb with respect to the concave reflective surface to provide the desired degree of focused light.

The light source socket support can be made interchangeable to allow various bulb positions with respect to the concave reflective surface.

The housing may be cast from metal, such as bronze, and has a machined concave surface.

The concave surfaces can be chrome plated to reflect light. The cooling provided by the water surrounding the housing prevents discoloration and damage to the chrome-plated reflective surfaces. One of the major considerations for all submersible light source devices is to ensure that water never comes into contact with the electrical wiring to the light source attachment device.

To this end, all submersible light source skirting devices are sealed. Heat build-up is a problem because the equipment is sealed. Typically, this heat is dissipated via a light source tailing device submerged in water. As mentioned above, heat dissipation becomes a greater problem when using high temperature bulbs. A rigid concave reflective surface attached to the light source according to the present invention is integrated with the housing, where heat is quickly conducted away from the reflective surface, thereby avoiding discoloration due to overheating and maintaining the shine of the reflective surface. Referring to Figure 1, roughly 12
A fountain nozzle and pump 10 are generally shown powered to eject upward into the air a stream of fountains indicated by . As can be seen, the flow of such a fountain can reach a height of several meters over the course of the fountain's operation, and can also vary in height. Various types of submersible light source skirting devices 14 are provided for illuminating and adding color to fountain streams. Each light source installation device is
It can be mounted in a variety of ways, for example on a stand connected to the lamp housing. A suitable waterproof power supply box 18 for power supply to the light source attachment device 14
This is done by a cable 16 coupled to. As you can see, varying focal lengths of the light beam are required as the height of the fountain stream changes. Referring to FIG. 2, the light source damage device 14 is shown in an exploded state.

The light source skirting device includes a housing 20 defining a concave reflective surface 22 therein. A hole 24 is located at the bottom of the concave reflective surface, which hole is aligned with a socket 25 for a light bulb 76. Light bulb 76 is in hole 2
4 extends through and into the space formed by the concave reflective surface. The longitudinal axis 29 of the bulb coincides with the major axis 23 of the concave reflective surface 22 of the reflective surface 22. Light source socket support 26
is a light source socket 25 fixed to a light source socket support.
have.

The electrical cable 16 passes inside the bottom 28 of the light source socket and is sealed inside the bottom of the support 26 through a standard compression washer-screw nut arrangement 301. Socket support 26 is adapted to sealingly couple to flared flange portion 32 of light source housing 20 . The closed end of the housing, indicated graphically at 34, is sealingly coupled to a protective transparent cover portion 36. A rubber gasket 38 covers the flange portion 40 of the transparent protective cover and is clamped to the housing by a compression ring 42 to form a seal with the top of the housing. The assembly of these components is shown in detail in FIG. From FIG. 2, it can be seen that the light source skirting device is horizontally constructed to facilitate disassembly and assembly for bulb replacement or socket replacement.

Additionally, the light source socket support 26 is easily removable from the flared flange portion of the housing 20 to facilitate replacement of the support. Referring to FIG. 3, a cross-section of the assembled light source skirting device 14 is shown.

Light source housing 20 can be formed from a variety of rigid materials. However, for submersible applications, the preferred material is bronze. The housing is made by casting and has an internal surface 2 to provide the desired concave shape.
2 can be machined. After machining to make the surface light reflective, the smooth surface 22 is chrome plated. As previously mentioned and as clearly shown in FIG.
The socket 25 is aligned with the socket 25 fixed to the socket 25 .

The bulb 76 has a high temperature resistant ceramic portion 46 that screws into the ceramic receptacle 48 of the bulb socket 25. The bulb may be of the quaff halogen type, in which the bulb envelope is quat and the filament 50 of the bulb is immersed in halogen gas. The color of the light beam from the light source can be changed via the protective cover 36. The protective cover can be of various colors to provide the desired shine, such as green, blue, red, yellow, and purple. A gasket 38 is attached to the lens cover 3 to ensure that the light source skirting device with the closing end 34 of the housing is sealed.
It covers the flange twill portion 40 of No. 6.

A compression ring 42 is used to clamp gasket 38 against ledge 52 of housing 20. The ledge 52 has a recess 54 for receiving the gasket 38. A plurality of V-shaped grooves 56 are provided on the surface of the recessed portion 54. By attaching the bolt 58 to the threaded hole 60 of the protrusion 52, the rubber gasket 38 is inserted into the groove 56.
compressed into the interior of the light source housing to form a seal and strengthen the seal to prevent water from entering the light source housing. A light source socket support 26 is configured to sealingly mate with the bottom of the housing 20 to seal the bottom of the light source skirting device.

Housing 20 includes an outwardly flared flange portion 32 having a flat ledge 62 . The light source socket support 26 includes a flange 64 having a recess 66 for receiving a rubber ring 68. By vertically attaching the threaded bolt 70 to the threaded hole 72 of the ledge 62, the ring 68 is compressed against the ledge 62, sealing the light source socket support 26 against the flared base 32 of the light source housing 20. . The radiation is produced by the use of a quark halogen light source.

If a rubber gasket, such as neoprene rubber, is directly exposed to this radiation, the rubber gasket material will deteriorate and become ineffective as a seal. To prevent this rubber gasket from deteriorating, a reflective surface 22 machined into the interior of the housing 20 includes a recessed surface 54 that extends above the recessed surface 54 to reflect radiation from the light source 26 to prevent it from directly impinging on the gasket material 38. Lip portion 7 extending along the entire circumference of surface 22
form 4. Since the light source skirting device 14 is completely sealed, it can be safely immersed in water.

The light source housing 2 has a wall 21 which can be cast from freon as described above. this wall 2
1 has essentially the same thickness around the part providing the reflective surface 22. When the housing 20 is submerged in water,
Heat from the light bulb 76 heats the reflective surface 22 and is therefore conducted from the reflective surface 22 down the wall 21 and into the surrounding cooling water. This direct conduction of heat from the reflective surface 22 ensures that the chrome plated surface does not overheat to maintain its brightness. Chrome is less durable but much cheaper than iron plating. Therefore, the housing embodied in accordance with the present invention allows for the use of easily replaceable high temperature light bulbs 76 with water cooled concave reflective surfaces.
The housing 20 has an hourglass-shaped cross section with a constriction neck 33 at the interconnection of the light reflecting portion 21 and the flared flange portion 32. Since the volume of the material is reduced at the capital 33, the flared flange portion 32 is removed from the arm portion 21.
This can significantly reduce the temperature of the support holding the electrical wiring. Heat conducted to the flared portion is removed by surrounding cooling water. The position of the light bulb 76 can be varied with respect to the focal point of the concave reflective surface 22 to vary the degree of focus of the light emitted from the light source tailing device.

Changing the bulb position relative to reflective surface 22 can be accomplished in a variety of ways. For example, as shown in FIG.
Can be used internally. Using a long bulb does not mean that all of the emitted light will be in focus. This creates a kind of floodlight. The construction of the light source footing system is the same as in FIG. 3, as are the same numbers used to indicate the parts of the light source mounting system. The light source socket 25 is fixed to the light source socket support by a threaded bolt 44. The positioning of the socket 25 with respect to the reflective surface 22 is determined by the position of the ledge 78 of the socket 26. By changing the position of this shelf 78 with respect to reflective surface 22, the position of bulb 76 can be changed. As shown in FIG. 5, two different positions for the shelf are shown at 78 and 78a.

For the same light bulb 76, the position shown at 76 when the light source socket 25 is attached to the shelf 78 of the light source support and the position shown at 76 when the light source socket 25 is attached to the shelf 78 of the socket support 26a.
It has two positions, with a second position 76a shown in dashed lines when attached to the top 8a and a second position 76a shown in dashed lines. Providing compatible light source socket supports 26 allows for various positions of light source 76 with respect to reflective surface 22 depending on the degree of light focus desired. Thus, it is necessary to make only one housing for the light source skirting device, and the positioning of the bulb with respect to the reflective surface 22 is effected by changing the length of the bulb or the light source socket support.
As shown in FIG. 5, another feature of the light source socket 26 is that it retains an o-ring seal 66.

Only the position of the ledge of the socket 78 can be changed. The ground terminal 80 is the same in the various types of sockets, where the lead wires to the light source socket 25 remain the same and are shown at 82 and 84 in FIG.
In accordance with the present invention, the present arrangement, which allows the use of high temperature operating bulbs, provides a selected degree of light focus V point in the range from floodlights to spotlights without replacing reflective surface portions.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the fountain pool, showing the lighting system. FIG. 2 is an exploded partial arrangement view of a light source mounting device according to a preferred embodiment of the present invention; FIG. 3 is a cross-sectional view of the assembly of the light source mounting device of FIG. 2; and FIG. 4 is a view showing bulbs of different lengths. FIG. 5 is a cross-sectional view of the installed light source mounting device, and FIG. 5 is a cross-sectional view of the light source footing device showing two positions for the same length of light bulb set by two different light socket supports.
14...Light source skirting device, 20...Light source bulb housing, 22...Light reflecting surface, 24...
... Hole, 25 ... Light source socket, 26.
...Light source socket support body, 36...Transparent cover, 76, 76a...Elongated light source bulb. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5

Claims (1)

Claims: 1. An hourglass-shaped light source bulb housing with a concave light-reflecting surface on the upper interior and a flared flange portion on the lower side and a constricted neck with reduced material volume at the interconnection of the two; a light source socket support removably attached to the flared flange portion of the light source bulb housing, the light source socket support being sealingly coupled to the flared flange portion of the light source bulb housing; an elongated high-intensity, high-temperature-operating quartz halogen light source bulb replaceably mounted in the light source socket secured to the light source socket support, the light source bulb housing in the retracted neck at the bottom of the light reflective surface and in the light source socket; having a hole in alignment with the light source socket, the device further comprising a transparent cover for the open end of the light source bulb housing hermetically attached to the light source bulb housing via a rubber gasket; A light source mounting device, wherein the elongated light source bulb extends through the hole into the space defined by the light reflective surface, and wherein the longitudinal axis of the elongated light source bulb is aligned with a major axis of the concave light reflective surface. and the light source bulb housing is in direct contact with water during use to cool and maintain the concave light reflective surface exposed to high temperatures generated by the light source bulb during operation; The inner peripheral surface of the rubber gasket has a circumferential lip that protrudes above the rubber gasket and forms an upper continuation of the concave light-reflecting surface, and the light source mounting device is configured to adjust the length of the light source bulb and the light source socket. A light source mounting device configured to provide differently focused light by positioning the light source with respect to the concave light reflective surface. 2. The light source mounting device of claim 1, wherein the light source socket support to which the light source socket is secured is configured to determine the positioning of the light source bulb with respect to the light reflecting surface. 3. The light source socket support has a recess for fixing the light source socket, the light source socket support is replaceable with a plurality of other similar light source socket supports, and the light source socket support has a recess for fixing the light source socket; Claims characterized in that the supports are arranged at different distances from the hole in the light source bulb housing of the shelf portion, and the support bodies are configured such that the distance between the supports provides a desired change in the degree of focusing of the light. The light source installation device of Section 2. 4. The extent to which the light is focused ranges from a spot light effect to a flood light effect, and if the flood light effect is desired, the elongated light source bulb is placed slightly above the periphery of the widest part of the concave light-reflecting surface. 2. A light source installation device according to claim 1, which is configured to extend up to a maximum of 100 ft. 5. A patent in which the transparent cover comprises a peripheral flange portion covered by the rubber gasket, and clamping means provided for clamping the rubber gasket to the light source bulb housing to seal the transparent cover to the light source bulb housing. A light source installation device according to claim 1. 6. The light source bulb housing includes a hanging flared flange portion to which the socket support is hermetically coupled to prevent water intrusion, and when the flared flange portion and the socket support are immersed in water; A light source installation device according to claim 1, which is configured to be cooled to prevent overheating of electrical wiring. 7. Claim 1, wherein the light source bulb housing is made of cast metal with the concave surface machined, and the machined surface is chromed to effectively reflect the light emitted from the light source bulb. Light source installation equipment. 8. The light source installation device according to claim 7, wherein the light source bulb housing is cast from bronze. 9. The light source bulb housing is configured to have a substantially uniform wall thickness in the area of the light reflective portion such that conduction of heat to surrounding water cools the chromed concave light reflective surface. A light source installation device according to claim 7 or 8. 10. The light source installation device of claim 1, wherein the elongated light source bulb is a light bulb having a threaded base for screwing into a correspondingly threaded light source socket. 11 the light source bulb housing has a recessed portion for receiving the rubber gasket, the recessed portion having a sealing surface provided with a plurality of circumferential grooves to enhance the sealing of the rubber gasket to the light source bulb housing; A light source installation device according to claim 1, comprising: