CN114388343A - Ceramic metal halide lamp assembly for enhancing illumination - Google Patents

Abstract

An enhanced illumination ceramic metal halide lamp assembly provides a ceramic metal halide lamp that can illuminate at high temperatures, extend service life, and improve color temperature, color rendering, and lighting effect; the lamp assembly includes a transparent vessel forming a vacuum; inside the vessel, a plurality of ceramic arc tubes are connected by two U-shaped coupling mechanisms, the coupling mechanisms being electrically conductive and resilient to provide an electrically conductive and cushioned gap between the ceramic arc tubes; it provides a stable 630W double ended ceramic metal halide lamp having a rated voltage of about 200V and a rated current of 3A when illuminated because the ceramic arctube produces 630W of power, with resilient mounting brackets extending between the ceramic arctube and the inside surface of the vessel to help stabilize the ceramic arctube within the elongated vessel.

Description

Ceramic metal halide lamp assembly for enhancing illumination

Technical Field

The invention belongs to the technical field of ceramic metal halide lamps, and particularly relates to a ceramic metal halide lamp assembly for enhancing illumination.

Background

Ceramic metal halide lamps, which are lamps with metal halide as the light source, have a luminous efficiency about 10% -20% higher than that of the conventional metal quartz halide, generally use ceramic instead of the quartz of the conventional metal halide lamps because the ceramic arc tube allows higher arc tube temperature, resulting in better efficacy, color rendering and color stability; and secondly, the arc is generated between tungsten electrodes which are packaged in the ceramic arc tube, and the ceramic arc tube contains a mixture of various gases and metal halide salt, so that when the ceramic arc tube is heated, the ceramic arc tube can evaporate the metal salt to form plasma, further enhancing the light generated by the arc and simultaneously reducing the power consumption of the emitted light.

Ceramic metal halide lamps have higher luminous efficiency than incandescent and fluorescent lamps because a larger portion of their radiation is visible light rather than heat from conventional radiation; ceramic metal halide lamps are more resistant to corrosive metal halide salts generated within the arc tube than standard quartz metal halide lamps, and therefore ceramic arc tubes can be operated at higher temperatures than quartz metal halide tubes, thereby improving some of the high performance parameters, such as: lumen maintenance (10% to 30% improvement), color shift of the lamp, emission stability, Color Rendering Index (CRI), and dimming, among others.

Ceramic metal halide lamps also have limitations in that the light output of all metal halide lamps is reduced and power consumption is increased over their entire operating life; in addition, ceramic metal halide lamps are prone to damage to their ceramic arc tubes from shock and buffer forces, resulting in their inability to adequately stabilize the ceramic arc tubes inside the tubes, and in these prior lamps, color temperature, color rendering, luminous efficiency were also not optimal, and they did not provide a stable output of 630W.

Disclosure of Invention

Therefore, the invention provides a lamp assembly capable of solving the above problems, and the specific technical scheme is as follows:

an enhanced lighting ceramic metal halide lamp assembly, the assembly comprising: a lamp assembly, a transparent vessel, an inner surface, an outer surface, a pair of sealed electrically conductive ends, an inner vessel, a plurality of ceramic arc tubes, an electrode, a first wire, a U-shaped coupling mechanism, a mounting bracket, a first end (124a), a second end, a second wire; under the ingenious matching of the structural components, a double-ended ceramic metal halide lamp can be formed.

2. Further, a plurality of ceramic arc tubes (112a-c) are disposed in the inner vessel (110) of the transparent vessel (102), the ceramic arc tubes (112a-c) being filled with an ionizable gas mixture; inside the ceramic arc tube (112a-c) a ballast is arranged, which ballast comprises at least one electrode capable of generating an arc by means of an ionizable gas mixture; a first wire (118) extends between a pair of sealed conductive ends (108a-b) of the transparent container (102) and is adapted to carry current through the ballast, wherein the ballast may be an electronic ballast or an electromagnetic ballast.

3. Further, two U-shaped coupling mechanisms (120a-b) are integrated onto the first wire (118), the two U-shaped coupling mechanisms (120a-b) connecting each ceramic arc tube (112a-c) to one sealed conductive end (108a-b) of the vessel, the two U-shaped coupling mechanisms (120a-b) being made of a conductive material, the two U-shaped coupling mechanisms (120a-b) being generally resilient so that the two U-shaped coupling mechanisms (120a-b) provide a conductive and buffer gap between the ceramic arc tube (112a-c) and the sealed conductive end (108a-b) of the vessel; and at least one fixed support (122a-c) defined by a first end (124a) and a second end (124b), the first end (124a) engaging an inner surface (104) of a transparent vessel (102) for stabilizing the ceramic arctube (112a-c), the second end (124b) engaging the ceramic arctube (112 a-c).

4. Further, the lamp assembly comprised a 630 watt double ended ceramic metal halide lamp and operated at a rated voltage and rated current of 200V and 3A, respectively; two wires are connected to a pair of sealed conductive ends (108a-b) of the transparent container (102), and the transparent container (102) is a cylindrical glass tube made of quartz glass.

5. Further, a ceramic arctube constructed of polycrystalline alumina having a maximum operating temperature of up to 700 degrees fahrenheit, said ceramic arctube filled with an ionizable gas mixture of mercury vapor and at least one metal halide, and an arc evaporating the gas mixture to produce illumination; the ceramic arctube produced about 630 watts of power when illuminated.

Compared with the prior art, the invention has the beneficial effects that:

the ceramic metal halide lamp can enhance illumination, can achieve stable 630W rated working power with the help of components, can provide higher illumination intensity, and improves color temperature, color rendering property and luminous efficiency; the double ended ceramic metal halide lamp also provides two conductive and resilient U-shaped coupling mechanisms connecting each ceramic arc tube to one sealed conductive end of the vessel to provide a conductive and buffer gap between the ceramic arc tubes.

Drawings

The invention will now be described, by way of example, with reference to the accompanying drawings, in which:

FIG. 1 shows a perspective view of an exemplary enhanced illumination ceramic metal halide lamp assembly according to an embodiment of the present invention;

FIG. 2A illustrates a lamp operating life diagram showing the practical use of a lamp assembly according to an embodiment of the present invention;

FIG. 2B illustrates a wavelength diagram of enhanced illumination that a lamp assembly according to an embodiment of the present invention is capable of producing over a broad spectrum of wavelengths;

FIG. 2C illustrates a second wavelength diagram representing enhanced illumination that can be produced by a lamp assembly over a broad wavelength spectrum in accordance with an embodiment of the present invention;

FIG. 3A illustrates a table of performance data listing experimental data for a lamp assembly in accordance with an embodiment of the present invention;

fig. 3B illustrates an electrical characteristic table according to one embodiment of the present invention, which sets the nominal lamp power to 630W.

FIG. 3C illustrates a physical description table referencing physical characteristics of the vessel and ceramic arctube, in accordance with an embodiment of the present invention;

fig. 4 illustrates a top view of an exemplary ceramic arctube connected by two U-shaped coupling mechanisms according to an embodiment of the present invention, with like reference numerals referring to like parts throughout the various views of the drawing figures.

The following detailed description is merely exemplary in nature and is not intended to limit the described embodiments or the application and uses of the described embodiments, as the words "exemplary" or "illustrative" refer to "serving as an example, instance, or illustration," any embodiment described herein as "exemplary" or "illustrative" is not necessarily to be construed as preferred or advantageous over other embodiments, as all embodiments described below are provided as exemplary embodiments to enable one skilled in the art to make or use the embodiments of the disclosure and are not intended to limit the scope of the disclosure as defined by the claims, for purposes of description herein, the terms "upper," "lower," "left," "rear," "right," "front," "vertical," "horizontal," and derivatives thereof are intended to be relative to the invention and are not intended to be limited by the prior art, the background, summary, or any expressed or implied theory presented in the following detailed description. It is also to be understood that the specific devices and processes illustrated in the attached drawings, and described in the following specification are simply exemplary embodiments of the inventive concepts defined in the appended claims, and therefore, specific dimensions and other physical characteristics relating to the embodiments disclosed herein are not to be considered as limiting, unless the claims expressly state otherwise.

Detailed Description

The invention is further illustrated with reference to the following figures:

the following detailed description is merely exemplary in nature and is not intended to limit the described embodiments or the application and uses of the described embodiments, as the words "exemplary" or "illustrative" refer to "serving as an example, instance, or illustration," any embodiment described herein as "exemplary" or "illustrative" is not necessarily to be construed as preferred or advantageous over other embodiments, as all embodiments described below are provided as exemplary embodiments to enable one skilled in the art to make or use the embodiments of the disclosure and are not intended to limit the scope of the disclosure as defined by the claims, for purposes of description herein, the terms "upper," "lower," "left," "rear," "right," "front," "vertical," "horizontal," and derivatives thereof are intended to be relative to the invention and are not intended to be limited by the prior art, the background, summary, or any expressed or implied theory presented in the following detailed description. It is also to be understood that the specific devices and processes illustrated in the attached drawings, and described in the following specification are simply exemplary embodiments of the inventive concepts defined in the appended claims, and therefore, specific dimensions and other physical characteristics relating to the embodiments disclosed herein are not to be considered as limiting, unless the claims expressly state otherwise.

An enhanced lighting ceramic metal halide lamp assembly 100 is referenced in the drawings, and the enhanced lighting ceramic metal halide lamp assembly 100, hereinafter referred to as a "lamp assembly" 100, provides a metal halide lamp that operates in this manner and operates in a high temperature environment for lighting, is capable of extended service life, and is capable of improved color temperature, color rendering, and luminous efficiency.

The lamp assembly 100 provides a transparent vessel 102 within which a vacuum is formed; and a plurality of ceramic arc tubes 112a, 112 b; the U-shaped coupling mechanisms 120a, 120b are connected by two U-shaped coupling mechanisms 120a, 120b, the U-shaped coupling mechanisms 120a, 120b being electrically conductive and resilient to provide electrical conductivity and a buffer gap between the ceramic arctubes, the plurality of ceramic arctubes 112a-b, the distal end 102 of the transparent vessel, and the lamp assembly 100 being further unique in that it ensures stable operation of a 630 watt, double ended ceramic metal halide lamp; electrical parameters of about 200V and 3A during illumination; the lamp assembly 100 employs mounting brackets 122a, 122b to help stabilize the resiliency of the ceramic arc tubes 112a-b within the transparent vessel 102.

These added features may extend the useful life of the ceramic arctubes 112a-b, thereby enhancing the lighting effect of the lamp assembly 100, while operating at high temperatures up to 700 degrees Fahrenheit, demonstrating operating stability in harsh operating environments; meanwhile, the energy-saving work and the color temperature, the color rendering property and the luminous efficiency after the emission optimization can be promoted. Lamp assembly 100 is also effective in significantly reducing reactions with the ionizable gas mixture contained therein; the lamp assembly 100 may be operated at higher temperatures to improve performance and light quality characteristics such as lumen maintenance, color and emission stability of the lamp, color rendering index, dimming, etc. parameters.

As shown in FIG. 1, the lamp assembly 100 includes a transparent vessel 102, the vessel 102 being formed of an inner surface 104, an outer surface 106, a pair of sealed, electrically conductive ends 108a-b, and an inner vessel 110; sealed conductive ends 108a-b, sufficiently conductive to conduct electrical current through the interior volume, the inner container 110 being sealed and forming a vacuum; in some embodiments, the container 102 may have a generally cylindrical shape, although other shapes are possible.

In one non-limiting embodiment, the transparent container 102 is a glass tube having a length of no more than 388 mm and a diameter of no more than 32.5 mm, and is made primarily of quartz glass, which is effective for passing light in an optimal manner, while other superior performance materials that are transparent may also be used.

The lamp 100 assembly also includes a plurality of ceramic arc tubes 112a-b (FIG. 4); ceramic arc tubes 112a-b are disposed within the transparent vessel 102 of the inner vessel 110, the ceramic arc tubes 112a-b being filled with an ionizable gas mixture that may include mercury vapor and at least one metal halide; in one non-limiting embodiment, the ceramic arctubes are made primarily of polycrystalline alumina, and in other embodiments, different ceramic-based materials may be used to make the ceramic arctubes 112 a-b.

In one non-limiting embodiment, the lamp 100 assembly provides that the ballast 114 is placed inside the ceramic arc tube 112a, -b; the ballast 114 may also include an electronic ballast or an electromagnetic ballast; in another embodiment, the ballast 114 includes at least one electrode 116 that generates an arc through the ionizable gas mixture, which can be used to vaporize the gaseous mixture, thereby creating a plasma to create a lighting effect in the ceramic arc tubes 112 a-b.

In one non-limiting embodiment, a wire 118 may extend between a pair of sealed conductive ends 108a-b, the wire 118 in the transparent container 102 carrying current through the ballast 114 to energize the electrode 116.

In one non-limiting embodiment, the lamp assembly 100 further includes two second wires 126a, 126b connected to the sealed conductive ends 108a and 108b, the wires 126a, 126b carrying current to the ends of the first wire 118.

In one non-limiting embodiment, the ceramic arctubes 112a-b produce about 630 watts of power when illuminated; the ceramic arctube is rated at about 200V and rated at about 3A (fig. 3C) when illuminated; an illumination color rendering index between 80 and 96; the polycrystalline alumina composition of the ceramic arctube 112a-b is effective to increase the operating temperature so that the ceramic arctube reaches a maximum temperature 112a-b of approximately 700 degrees fahrenheit.

The actual use of lamp assembly 100 is reflected in FIGS. 2A-2C; particularly those ceramic arc tubes 112a-b and vessel 102; as shown in fig. 2A, the use of a 630 watt double ended ceramic metal halide lamp may extend the useful life of the lamp 100 assembly; the cushioning effect provided by the U-shaped coupling mechanisms 120a, 120 also prevents the bulb from shortening the life of the lamp due to jolts during assembly, thereby improving the average operating life of the lamp, as can be seen in fig. 2A, the curve transitions from a 100% reduction to about 78% reduction with a smooth slope, such flat slopes indicating that the life of the ceramic arctube 112A-b is greater than that of conventional metal halide lamps known in the art; fig. 3A is a table of performance data showing that the nominal average life of lamp assembly 100 is approximately 10000 hours.

In fig. 2B, the wavelength plot 202 shows that the enhanced illumination of the lamp assembly 100 is capable of producing light over a wide spectral range, as shown, with the intensity of the light peaking at a wavelength of about 600 nanometers, although higher intensity light may also be produced at shorter wavelengths (about 500 nanometers), the plot 204 shows greater intensity between 500nm and 600nm wavelengths, so that the majority of the energy is concentrated at 600 nanometers, with these best wavelength modes corresponding to the structural design of the ceramic arc tubes 112 a-B.

FIGS. 3A-3C illustrate the specifications of the lamp 100 assembly; particularly those ceramic arc tubes 112a-b and transparent vessel 102; performance data table 300 lists experimental data for lamp assembly 100 (fig. 3A); the results show that after 100 hours of operation, the initial lumen at rated power is about 78500LM, the rated mean life is about 10000 hours, the preheating time is 7 minutes, the correlated color temperature is 3100K, the color rendering index is greater than or equal to 90, the operation position is HOR +/-15 degrees, the PAR value (photosynthetically active radiation) (380-780nm) is 12000 mu mol/s, and the light effect is 125 LM/w.

In fig. 3B, the electrical characteristic table 302 refers to a lamp power rating of 630W, which is consistent with the use of a 630 watt double-ended ceramic metal halide lamp, which has a voltage rating of about 200V and a current rating of about 3A.

The physical description table 304 of FIG. 3C refers to the physical characteristics of the transparent vessel 102 and the ceramic arc tubes 112 a-b; the vessel 102 has a length of up to 388 mm, a diameter of up to 32.5 mm, and pulse positions (electrical angles) of 60 ° -90 ° and 240 ° -270 °; the maximum temperature of the ceramic arctubes 112a-b can reach approximately 700 degrees fahrenheit, the model name of the bulb tested is T32.5, the bulb is made primarily of quartz glass and has a transparent bulb appearance.

In fig. 4, lamp assembly 100 also provides two U-shaped coupling mechanisms 120a, 120 b; the wires of the two U-shaped coupling mechanisms 120a-b are indispensable; two U-shaped coupling mechanisms 120a-b connect each ceramic arc tube 112a-b above one of the sealed conductive ends 108a, 108b, which connection function reduces the tension on the first wire 118; thereby establishing a more robust interconnection between the ceramic arc tubes 112a-b and the components on the first wire 118.

In one embodiment, the two U-shaped coupling mechanisms 120a-b are defined by an electrically conductive material and are resilient, which may include tensioned metal blades or other materials that create a damping oscillation at the surface of the ceramic arc tubes 112a-b, which provides the advantage of both the U-shaped coupling mechanisms 120a-b providing electrical conductivity and a damping gap between the ceramic arc tubes 112 a-b.

In FIG. 1, the lamp assembly 100 further provides at least one fastening bracket 122a, 122b to help secure the stable position of the ceramic arctube 112a-b within the transparent vessel 102; the mounting brackets 122a-b positionally normalize the first end 124a, the second end 124b, the first end 124a engaging the transparent container 102 of the inner surface 104; the second end 124b engages the ceramic arc tube 112 a-b; in one embodiment, the mounting brackets 122a-b have an elongated shape with arcuate ends such that the first ends 124a are bent inward; the second end 124b may still maintain a radial path that coincides with the ceramic arctube 112 a-b.

These and other advantages of the invention will be further understood and appreciated by those skilled in the art by reference to the above written description, claims and appended drawings.

Since many modifications, variations and changes in detail can be made to the described preferred embodiment of the invention, it is intended that all matter contained in the foregoing description and shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense. Accordingly, the scope of the invention should be determined by the appended claims and their legal equivalents.

Claims (5)

1. An enhanced lighting ceramic metal halide lamp assembly, the assembly comprising: a lamp assembly (100), a transparent vessel (102), an inner surface (104), an outer surface (106), a pair of sealed conductive ends (108a) (108b), an inner vessel (110), a plurality of ceramic arc tubes (112a) (112b), a ballast (114), an electrode (116), a first wire (118), a U-shaped coupling mechanism (120a) (120b), a mounting bracket (122a) (122b) (122c), a first end (124a), a second end (124b), a second wire (126a) (126 b); under the ingenious matching of the structural components, a double-ended ceramic metal halide lamp can be formed.

2. An enhanced lighting ceramic metal halide lamp assembly according to claim 1, wherein: a plurality of ceramic arc tubes (112a-c) disposed in the inner vessel (110) of the transparent vessel (102), the ceramic arc tubes (112a-c) filled with an ionizable gas mixture; inside the ceramic arc tube (112a-c) a ballast is arranged, which ballast comprises at least one electrode capable of generating an arc by means of an ionizable gas mixture; a first wire (118) extends between a pair of sealed conductive ends (108a-b) of the transparent container (102) and is adapted to carry current through the ballast, wherein the ballast may be an electronic ballast or an electromagnetic ballast.

3. An enhanced lighting ceramic metal halide lamp assembly according to claim 1, wherein: two U-shaped coupling mechanisms (120a-b) are integrated onto the first wire (118), the two U-shaped coupling mechanisms (120a-b) connecting each ceramic arctube (112a-c) to one sealed conductive end (108a-b) of the vessel, the two U-shaped coupling mechanisms (120a-b) being made of a conductive material, the two U-shaped coupling mechanisms (120a-b) being generally resilient so that the two U-shaped coupling mechanisms (120a-b) provide conductivity and a buffer gap between the ceramic arctube (112a-c) and the sealed conductive end (108a-b) of the vessel; and at least one fixed support (122a-c) defined by a first end (124a) and a second end (124b), the first end (124a) engaging an inner surface (104) of a transparent vessel (102) for stabilizing the ceramic arctube (112a-c), the second end (124b) engaging the ceramic arctube (112 a-c).

4. An enhanced lighting ceramic metal halide lamp assembly according to claim 1, wherein: the lamp assembly comprises a 630-watt double-ended ceramic metal halide lamp, and the rated voltage and the rated current are 200V and 3A respectively when the lamp assembly works; two wires are connected to a pair of sealed conductive ends (108a-b) of the transparent container (102), and the transparent container (102) is a cylindrical glass tube made of quartz glass.

5. An enhanced lighting ceramic metal halide lamp assembly according to claim 1, wherein: ceramic arctubes composed of polycrystalline alumina, having a maximum operating temperature of up to 700 degrees fahrenheit, filled with an ionizable gas mixture composed of mercury vapor and at least one metal halide, and the arc vaporizes the gas mixture to produce illumination; the ceramic arctube produced about 630 watts of power when illuminated.

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