CN104214681A - Ceiling type gas discharge lamp - Google Patents

Abstract

A suspended ceiling type gas discharge lamp comprising: the reflecting surface of the reflector is a curved surface formed by a parabola rotating for a circle around a symmetry axis, the focal length of the parabola is 37 +/-2 millimeters, the light outlet of the reflector is circular, the light outlet is formed by two ends of the parabola, and the symmetry axis is the optical axis of the reflector; a gas discharge light source mounted on top of the reflector and located on an optical axis of the reflector; built-in anti-dazzle grid installs the light-emitting port department at the reflector, including first cylinder light screen, second cylinder light screen and two connecting plates, the diameter of second cylinder light screen is greater than the diameter of first cylinder light screen to second cylinder light screen and first cylinder light screen cover are established together, and the one end of connecting plate is passed behind the second cylinder light screen with the outer peripheral edge connection of first cylinder light screen, and the other end is connected with the plane of reflection of reflector. The ceiling type gas discharge lamp can prevent glare and has small influence on the light distribution effect.

Description

Ceiling-mounted gas discharge lamps

【Technical field】

The invention relates to a lighting fixture, in particular to a ceiling-mounted gas discharge lamp.

【Background technique】

Ceiling-type gas discharge lamps are used in the way of lighting in the sky and are installed on the top of the building. Because the light-emitting surface of the ceiling-type gas discharge lamp is downward, pedestrians walking under the lamp can easily see the gas discharge light source of the ceiling-type gas discharge lamp when they look up. Because the luminous flux of the gas discharge light source is large, it is easy to hurt human eyes. The existing technology is only through The edge of the reflector of the lamp itself intercepts the light, and the irradiation angle of the ceiling type gas discharge lamp itself is generally 80°~45°, that is to say, the lamp is installed at a height of 12 meters, and people are 10 meters away from the lamp on the horizontal plane. The head-up viewing angle is 90°), you can see the light source illuminant of the ceiling-mounted gas discharge lamp, which is harmful to the eyes.

Although some traditional ceiling-mounted gas discharge lamps are shielded by anti-glare grilles, they greatly change the original light distribution effect.

【Content of invention】

In view of the above situation, it is necessary to provide a ceiling-mounted gas discharge lamp which can prevent glare and has little influence on the light distribution effect.

A ceiling-mounted gas discharge lamp comprising:

A reflector whose reflective surface is a curved surface formed by a parabola rotating around the axis of symmetry, the focal length of the parabola is 40 ± 2 mm, the light outlet of the reflector is circular, and the light outlet is formed by the parabola two ends are formed, and the axis of symmetry is the optical axis of the reflector;

A gas discharge light source is installed on the top of the reflector, and the gas discharge light source is positioned on the optical axis of the reflector; the power of the gas discharge light source is 250 watts, and the length of the illuminant of the gas discharge light source is 31.5 ± 2 mm, the diameter of the illuminant is 12.5 ± 2 mm; and

The built-in anti-glare grille is installed at the light exit of the reflector, and the built-in anti-glare grille includes a first cylindrical shading plate, a second cylindrical shading plate, a third cylindrical shading plate and two a connecting plate, the diameter of the second cylindrical light shielding plate is larger than the diameter of the first cylindrical light shielding plate, and smaller than the diameter of the third cylindrical light shielding plate, and the third cylindrical light shielding plate is The shading plate, the second cylindrical shading plate and the first cylindrical shading plate are sleeved together sequentially, and one end of the connecting plate passes through the third cylindrical shading plate and the second cylindrical shading plate. After the cylindrical shading plate is connected with the outer periphery of the first cylindrical shading plate, the other end is connected with the reflecting surface of the reflector; the first cylindrical shading plate, the second cylindrical shading plate and the two ends of the third cylindrical light shielding plate are light inlet and light outlet respectively, and the light outlets of the first cylindrical light shielding plate, the second cylindrical light shielding plate and the third cylindrical light shielding plate are all It is flush with the light outlet of the reflector; the height of the second cylindrical shading plate is smaller than the height of the first cylindrical shading plate and greater than the height of the third cylindrical shading plate.

A ceiling-mounted gas discharge lamp comprising:

A reflector whose reflective surface is a curved surface formed by a parabola rotating around the axis of symmetry, the focal length of the parabola is 37 ± 2 mm, the light outlet of the reflector is circular, and the light outlet is formed by the parabola two ends are formed, and the axis of symmetry is the optical axis of the reflector;

a gas discharge light source mounted on top of the reflector, and the gas discharge light source is located on the optical axis of the reflector; and

The built-in anti-glare grille is installed at the light outlet of the reflector, and the built-in anti-glare grille includes a first cylindrical shading plate, a second cylindrical shading plate and two connecting plates, and the second cylindrical shading plate The diameter of the cylindrical light shielding plate is larger than the diameter of the first cylindrical light shielding plate, and the second cylindrical light shielding plate and the first cylindrical light shielding plate are sheathed together, and the connecting plate One end passes through the second cylindrical shading plate and is connected to the outer periphery of the first cylindrical shading plate, and the other end is connected to the reflecting surface of the reflector; the first cylindrical shading plate and The second cylindrical shading plate is respectively a light inlet and a light outlet, and the light outlets of the first cylindrical shading plate and the second cylindrical shading plate are all flush with the light outlet of the reflector; The height of the second cylindrical shading plate is smaller than the height of the first cylindrical shading plate.

The built-in anti-glare grille of the above-mentioned suspended ceiling gas discharge lamp adopts two sections of shading panels with different heights, namely the first cylindrical shading panel and the second cylindrical shading panel, the shading angles of which are different, and each cylindrical shading panel The light outlet of the plate is flush with the light outlet of the reflector, thereby effectively controlling the irradiation angle of the ceiling-type gas discharge lamp and avoiding glare; moreover, the built-in anti-glare grille used in the above-mentioned ceiling-type gas discharge lamp does not have too much effect on light distribution. big impact. Therefore, the above-mentioned ceiling-mounted gas discharge lamp can prevent glare and has little influence on the light distribution effect.

In one of the embodiments, the two connecting plates are arranged along the diameter of the second cylindrical shading plate, and are symmetrically arranged compared with the first cylindrical shading plate.

In one embodiment, the end of the connecting plate connected to the reflective surface of the reflector is arc-shaped, and matches the shape of the reflective surface of the reflector.

In one embodiment, the power of the gas discharge light source is 150 watts, and the illuminant of the gas discharge light source is spherical with a diameter of 20±1 mm.

In one embodiment, the diameter of the light outlet of the reflector is 325±5 mm, and the length of the reflector is 178.42±5 mm.

In one of the embodiments, the width of the connecting plate is substantially equal to the height of the second cylindrical light shielding plate.

In one embodiment, an installation hole is provided on the top of the reflector, and the gas discharge light source passes through the installation hole.

In one embodiment, the mounting hole is circular, and its opening radius is 45±5 mm.

In one embodiment, the shading angle of the second cylindrical shading plate is 47.59±2 degrees to 36.95±2 degrees, and the shading angle of the first cylindrical shading plate is 36.95±2 degrees to 15.37± 2 degrees.

In one of the embodiments, the free end of the housing of the gas discharge light source is opposite to the light entrance of the first cylindrical shading plate, and there is a distance therebetween.

【Description of drawings】

Fig. 1 is an axial sectional view of a ceiling-mounted gas discharge lamp according to an embodiment of the present invention;

Fig. 2 is a perspective view of the built-in anti-glare grille of the ceiling-mounted gas discharge lamp shown in Fig. 1;

Fig. 3 is a top view of the built-in anti-glare grille of the ceiling-mounted gas discharge lamp shown in Fig. 1;

Fig. 4 is a side view of the built-in anti-glare grille of the ceiling-mounted gas discharge lamp shown in Fig. 1;

Fig. 5 is a side view from another angle of view of the built-in anti-glare grille of the ceiling-mounted gas discharge lamp shown in Fig. 1;

Fig. 6 is a schematic diagram of the irradiation angle when the ceiling-mounted gas discharge lamp shown in Fig. 1 does not use a built-in anti-glare grid;

Fig. 7 is a schematic diagram of the irradiation angle when the ceiling-mounted gas discharge lamp shown in Fig. 1 adopts a built-in anti-glare grille;

Fig. 8 is a light distribution curve of the ceiling-mounted gas discharge lamp shown in Fig. 1 without a built-in anti-glare grille;

Fig. 9 is a light distribution curve of the ceiling-mounted gas discharge lamp shown in Fig. 1 when a built-in anti-glare grille is used.

【Detailed ways】

In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Please refer to FIG. 1 , a ceiling-mounted gas discharge lamp 100 according to an embodiment of the present invention includes a reflector 110, a gas discharge light source 120 and a built-in anti-glare grid 130, and the reflector 110 is used to reflect the light emitted by the gas discharge light source 120 to the built-in The anti-glare grille 130 is projected through the built-in anti-glare grille 130 .

The reflection surface of the reflector 110 is a curved surface formed by rotating a parabola around the axis of symmetry. The focal length of the parabola is 37 ± 2 mm. The light outlet of the reflector 110 is circular, and the light outlet is formed by two ends of a parabola, and the axis of symmetry is the optical axis of the reflector 110 .

Specifically, in the illustrated embodiment, the diameter of the light outlet of the reflector 110 is 325±5 mm, and the length of the reflector 110 is 178.42±5 mm. Wherein, the diameter of the light outlet of the reflector 110 and the length of the reflector 110 can be set according to the focal length of the parabola and the length and diameter of the reflector of the gas discharge light source 120 .

Further, an installation hole is provided on the top of the reflector 110 , and the gas discharge light source 120 passes through the installation hole of the reflector 110 . Preferably, the mounting hole is circular, and its opening radius is 45±5mm. The opening radius of the installation hole can be set according to the diameter of the gas discharge light source 120 .

The gas discharge light source 120 is accommodated in the reflector 110 and installed on the top of the reflector 110 . The gas discharge light source 120 is located on the optical axis of the reflector 110 . Specifically, in the illustrated embodiment, the luminous body of the gas discharge light source 120 is spherical, and the diameter of the luminous body is 20±1 mm.

Please refer to FIG. 2 to FIG. 5 together, the built-in anti-glare grille 130 is installed at the light outlet of the reflector 110 . The built-in anti-glare grille 130 includes a first cylindrical light shielding plate 131 , a second cylindrical light shielding plate 132 and two connecting plates 134 . The diameter of the second cylindrical light shielding plate 132 is greater than the diameter of the first cylindrical light shielding plate 131, and the second cylindrical light shielding plate 132 and the first cylindrical light shielding plate 131 are sleeved together, and one end of the connecting plate 134 After passing through the second cylindrical shading plate 132 , it is connected to the outer peripheral edge of the first cylindrical shading plate 131 , and the other end is connected to the reflective surface of the reflector 110 . The two ends of the first cylindrical light shielding plate 131, the second cylindrical light shielding plate 132 and the third cylindrical light shielding plate 133 are light inlet and light outlet respectively, and the first cylindrical light shielding plate 131 and the second cylindrical light shielding plate 131 and the second cylindrical light shielding plate The light outlets of the cylindrical shading plate 132 are all flush with the light outlets of the reflector 110 . The height of the second cylindrical light shielding plate 132 is smaller than the height of the first cylindrical light shielding plate 131 .

Specifically, in the illustrated embodiment, the two connecting plates 134 are arranged along the diameter of the second cylindrical light-shielding plate 132 , and are arranged symmetrically with respect to the first cylindrical light-shielding plate 131 . Since the two connecting plates 134 are arranged symmetrically, they can stably install the built-in anti-glare grid 130 in the light outlet of the reflector 110 .

Further, the end of the connecting plate 134 connected to the reflective surface of the reflector 110 is arc-shaped, and matches the shape of the reflective surface of the reflector 110 . Since the shape of the end of the connecting plate 134 matches the shape of the reflective surface of the reflector 110 , the built-in anti-glare grid 130 is just clamped in the light outlet of the reflector 110 .

Further, the width of the connecting plate 134 is smaller than the height of the second cylindrical light shielding plate 132 , so that the connecting plate 134 will not affect the light shielding effect of the second cylindrical light shielding plate 132 .

In other embodiments, the width of the connecting plate 134 is substantially equal to the height of the second cylindrical light shielding plate 132, and the built-in anti-glare grille 130 and the height of the built-in anti-glare grille 130 can be raised as soon as possible without affecting the light shielding effect of the second cylindrical light shielding plate 132. The connection strength of the reflector 110.

Further, the power of the gas discharge light source 120 is 150 watts, and the free end of the casing of the gas discharge light source 120 is opposite to the light entrance of the second cylindrical light shielding plate 132 , and there is a distance therebetween. Specifically, in the illustrated embodiment, the gas discharge light source 120 is Osram POWERBALL (energy ball) HCI-T150W/942NDL PB, a European standard 150W light source.

Please refer to FIG. 6 , which is a schematic diagram of the light output effect of the ceiling-mounted gas discharge lamp 100 of the present invention without the above-mentioned built-in anti-glare grille 130 . It can be seen from the figure that the irradiation angle is relatively large and glare is likely to occur. Please refer to FIG. 7 , which is a schematic diagram of the light emitting effect of the ceiling-mounted gas discharge lamp 100 of the present invention using the above-mentioned built-in anti-glare grille 130 , and the irradiation angle can be reduced through the built-in anti-glare grille 130 .

Please refer to Fig. 1, the above-mentioned built-in anti-glare grille 130 adopts three sections of shading plates with different heights, that is, the first cylindrical shading plate 131 and the second cylindrical shading plate 132, and the shading angles are different, for example, in the figure In the embodiment, the shading angle of the second cylindrical shading plate 132 is 47.59±2 degrees to 36.95±2 degrees, and the shading angle of the first cylindrical shading plate 131 is 36.95±2 degrees to 15.37±2 degrees. It can be seen from this that the irradiation angle of the ceiling-mounted gas discharge lamp 100 is reduced to within 31 degrees, that is, the angle at which personnel on the ground can see the light source is reduced to within 31 degrees. Only when the personnel on the ground walk directly under the lamp and raise their head can they see the gas discharge light source 120 and feel the glare. Normally, when walking under the above-mentioned ceiling type gas discharge lamp 100, they will not feel glare due to raising their head horizontally. to glare.

Please refer to Fig. 8 and Fig. 9. Through simulation verification, the addition of the built-in anti-glare grille 130 has no great influence on the light distribution effect. Among them, Fig. 8 shows that the ceiling-type gas discharge lamp 100 of the present invention does not adopt the above-mentioned built-in anti-glare As for the light distribution effect of the grid 130 , FIG. 9 shows the light distribution effect of the above-mentioned built-in anti-glare grid 130 in the ceiling type gas discharge lamp 100 of the present invention.

The built-in anti-glare grille 130 of the above-mentioned suspended ceiling type gas discharge lamp 100 adopts two sections of shading plates with different heights, that is, the first cylindrical shading plate 131 and the second cylindrical shading plate 132, the shading angles are different, and each circle The light outlet of the cylindrical light-shielding plate is flush with the light outlet of the reflector 110, thereby effectively controlling the irradiation angle of the ceiling-type gas discharge lamp 100 and avoiding glare; The grid 130 does not have much influence on the light distribution effect. Therefore, the above-mentioned ceiling-mounted gas discharge lamp 100 can prevent glare and has little influence on the light distribution effect.

The above-mentioned embodiments only express several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but should not be construed as limiting the patent scope of the present invention. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (10)

1. A ceiling-mounted gas discharge lamp, characterized in that it comprises: A reflector whose reflective surface is a curved surface formed by a parabola rotating around the axis of symmetry, the focal length of the parabola is 37 ± 2 mm, the light outlet of the reflector is circular, and the light outlet is formed by the parabola two ends are formed, and the axis of symmetry is the optical axis of the reflector; a gas discharge light source mounted on top of the reflector, and the gas discharge light source is located on the optical axis of the reflector; and The built-in anti-glare grille is installed at the light outlet of the reflector, and the built-in anti-glare grille includes a first cylindrical shading plate, a second cylindrical shading plate and two connecting plates, and the second cylindrical shading plate The diameter of the cylindrical light shielding plate is larger than the diameter of the first cylindrical light shielding plate, and the second cylindrical light shielding plate and the first cylindrical light shielding plate are sheathed together, and the connecting plate One end passes through the second cylindrical shading plate and is connected to the outer periphery of the first cylindrical shading plate, and the other end is connected to the reflecting surface of the reflector; the first cylindrical shading plate and The second cylindrical shading plate is respectively a light inlet and a light outlet, and the light outlets of the first cylindrical shading plate and the second cylindrical shading plate are all flush with the light outlet of the reflector; The height of the second cylindrical shading plate is smaller than the height of the first cylindrical shading plate. 2. The ceiling-mounted gas discharge lamp according to claim 1, wherein the two connecting plates are arranged along the diameter of the second cylindrical shading plate, and compared with the first cylindrical shading plate The visors are arranged symmetrically. 3. The ceiling-mounted gas discharge lamp according to claim 2, characterized in that, the end of the connecting plate connected to the reflective surface of the reflector is arc-shaped, and is in line with the shape of the reflective surface of the reflector match. 4. The ceiling-mounted gas discharge lamp according to claim 2, wherein the power of the gas discharge light source is 150 watts, and the illuminant of the gas discharge light source is spherical with a diameter of 20±1 mm. 5. The ceiling-mounted gas discharge lamp according to claim 4, wherein the diameter of the light exit of the reflector is 325±5 mm, and the length of the reflector is 178.42±5 mm. 6. The ceiling-mounted gas discharge lamp according to claim 1, wherein the width of the connecting plate is substantially equal to the height of the second cylindrical light-shielding plate. 7. The ceiling-mounted gas discharge lamp according to claim 1, wherein an installation hole is provided on the top of the reflector, and the gas discharge light source passes through the installation hole. 8. The ceiling-mounted gas discharge lamp according to claim 7, wherein the installation hole is circular, and the opening radius thereof is 45±5 mm. 9. The ceiling-mounted gas discharge lamp according to claim 8, characterized in that, the shading angle of the second cylindrical shading plate is 47.59±2 degrees to 36.95±2 degrees, and the shading angle of the first cylindrical shading plate The shading angle of the board is 36.95±2 degrees to 15.37±2 degrees. 10. The ceiling-mounted gas discharge lamp according to claim 1, wherein the free end of the housing of the gas discharge light source is opposite to the light entrance of the first cylindrical shading plate, and there is a distance therebetween.