A compound structure for projecting and pagoda type lamp

Abstract: The present invention relates to a compound structure for projecting and pagoda type lamp which is permitted for the selection of its lighting manners by virtue of a change in its assembly, and particularly to a projecting type lamp or pagoda type lamp for radial lighting comprising a reflective mirror assembly with double-sided electroplated ball face or with polyface or specific curve resembling a ball face to give a effect of concave converging or convex divergent subject to the face against the bulb and depending on the assembly of each element of the lamp.

Description: This invention relates to a multi-purpose lamp, and in particular to a multi-purpose lamp which can perform as a projecting lamp and/or as a pagoda lamp. Conventional lighting fixtures, in order to meet the needs of the environment to be lighted, in general include two categories of lamps: a pagoda lamp and a projecting lamp. For example, these types of lamp are described in US-A-4 645 980. Both lamps are quite different and, as described, are not replaceable nor combinable. Thus, in the pagoda lamp, the light emitted is spread radially, while in the projecting lamp the light emitted is sent in one particular direction. Other known lamps are described in US-A-4 768 139 and US-A-4 096 555. The aim of the invention is to provide a multi-purpose lighting fixture which can serve as a pagoda lamp and a projecting lamp, performing in combination or separately. The present invention provides a convertible, multi-purpose lamp for outdoor use, the lamp comprising a pole for insertion into the ground, a support mounted on the pole, a bulb within the support and substantially enclosed therein, a lens mounted on the support above the bulb, shade means mounted on the support and spaced therefrom above the lens, and a reflective mirror assembly comprising at least a first parabolic reflector which is mounted on the support and disposed below the bulb with the concave face of the first parabolic reflector facing the bulb, characterised in that the lamp elements are compatible for conversion from a first arrangement in which the shading means is constituted by a pagoda-type shade, and a second parabolic reflector is mounted on the support above the lens substantially parallel with the first parabolic reflector and with the convex face of the second parabolic reflector facing the lens; to a second arrangement in which the shading means is constituted by a ring-type shade, and the second parabolic reflector is removed; or to a third arrangement in which the shading means is constituted by a pagoda-type shade and a ring-type shade, and the second parabolic reflector is mounted on the support above the lens substantially parallel with the first parabolic reflector and with the convex face of the second parabolic reflector facing the lens, and further characterised in that the first and second parabolic reflectors are double-sided reflective. The present invention will be more fully understood from the ensuing description of a preferred embodiment which is provided with reference to the accompanying drawings in which: FIG. 1 is an exploded view of a multi-purpose lamp constructed in accordance with the invention; FIG. 2 is a longitudinal sectional view of the assembly of Fig. 1, and shows a pagoda lamp implementation; FIG. 3 is a longitudinal sectional view of the assembly of Fig. 1, and shows a projecting lamp implementation; FIG. 4 is a view of the combined type pagodaprojecting lamp of the present invention, along with a partial longitudinal section of a ring-type shade; FIG. 5 is an exploded perspective view of a pair of convex-concave reflectors of the present invention; FIG. 6 is a view of the reflectors of Fig. 7, having a plurality of circumferentially-spaced facets; FIG. 7 is an embodiment of the present invention showing the convex surfaces of the reflectors, wherein the lower reflector has a plurality of circumferentially-spaced facets; and FIG. 8 is an embodiment of the present invention showing the upper reflector having a plurality of circumferentially-spaced facets. Referring to the drawings, FIG. 1 shows a multi-purpose lamp comprising a pole 101, a support 102 mounted on the pole, a bulb 107 within, and substantially enclosed by, the support, a lens 104 mounted on the support above the bulb, a pagoda type shade 105, a ring type shade 106, and a reflective mirror assembly 113 constituted by a first, concave reflector mounted within the support below the bulb, and a second, convex parabolic reflector mounted on the pagoda type shade. The pole 101 is fluted for insertion into the ground. To facilitate insertion, the pole 101 also includes a sharpened lower portion 109 and a wide upper portion 110. Its upper portion 110 is provided with a gear 100 for connection with the support 102, and for the angular adjustment of the support relative to the vertical axis of the pole 101. The gear 100 provides a swivel adjustment, incremental via gear teeth 112. The support 102 has a cooperating arcuate gear 115. The gear teeth 112 lock the gear 100 and the gear 115 in a selected angular position. A restraining collar 103 is provided for housing the upper portion 110 of the pole 101, to fix the joint between the support 102 and the pole. The support 102 receives the bulb 107, a socket and power cord connection (not shown), the first reflector 113, a spring 114, the gear 115, the lens 104 and a shade (or shades) 105, 106. The lens 104, being mounted above the bulb 107, may include a coloured filter lens, thus providing light emitted from the bulb to be coloured as desired. The lamp shade can be of two types: the pagoda-type shade 105 and the ring-type shade 106. The pagoda-type shade 105 is mounted on the support 102 with the help of supporting posts 116. The second reflector 113 is mounted on the shade 105 and is disposed between the lens 104 and the shade 105. The lamp shade can also be of a ring-type. The ring-type shade 106, being mounted on the support 102, provides circumferential focusing of the light emitted radially. Based on aforesaid elements and design, the inventor of the present invention can fabricate pagoda and projecting lamps as shown in FIGS. 2 and 3. FIG. 2 shows the multi-purpose lamp of the present invention performing as a pagoda lamp (only the pagoda-type shade 105 is used). As shown, in this implementation, the restraining collar 103 holds the support 102 vertically with respect to the ground. The convex surface 120 of the second reflector 113 receives light from the bulb 107 to create a divergent pattern of light. The concave surface 121 of the first reflector 113 creates a convergent pattern of light emitted from the bulb 107. FIG. 3 shows the multi-purpose lamp of the present invention performing as a projecting lamp (only the ring-type shade 106 is used). Referring to FIG. 3 the restraining collar 103 is pressed down and is not engaged with the support 102. The support 102 is angled relative to the pole 101. The first reflector 113 receives light from the bulb 107 by its concave surface 121, and reflects this light in a convergent pattern. The ring-type shade 106 focuses this light. When desired, the multi-purpose lamp will perform a combined function of both the pagoda and projecting lamps. FIG. 4 shows the lamp, using both types of shade 105, 106, wherein the ring-type shade 106 is mounted directly onto the support 102, and the pagoda-type shade 105 is mounted on the support 102 via the supporting posts 116 above the ring-type shade 106. In this implementation, the light focused by the ring-type shade 106 is received by the convex surface 120 of the second reflector 113 and reflected in a divergent pattern. The reflectors 113 are polished or electroplated. FIGS. 5 to 8 show a plurality of circumferentially-spaced facets 122 on the surfaces 120, 121 of at least one of the reflectors 113 provided in order to increase the variety of the light patterns. FIG. 5 shows particularly the convex-concave reflectors 113 which include both convex and concave surfaces convenient for manufacturing.

Claims: A convertible, multi-purpose lamp for outdoor use, the lamp comprising a pole (101) for insertion into the ground, a support (102) mounted on the pole, a bulb (107) within the support and substantially enclosed therein, a lens (104) mounted on the support above the bulb, shade means (105, 106) mounted on the support and spaced therefrom above the lens, and a reflective mirror assembly (113) comprising at least a first parabolic reflector which is mounted on the support and disposed below the bulb with the concave face of the first parabolic reflector facing the bulb, characterised in that the lamp elements are compatible for conversion from a first arrangement in which the shading means is constituted by a pagoda-type shade (105), and a second parabolic reflector is mounted on the support above the lens substantially parallel with the first parabolic reflector and with the convex face of the second parabolic reflector facing the lens; to a second arrangement in which the shading means is constituted by a ring-type shade (106), and the second parabolic reflector is removed; or to a third arrangement in which the shading means is constituted by a pagoda-type shade (105) and a ring-type shade (106), and the second parabolic reflector is mounted on the support above the lens substantially parallel with the first parabolic reflector and with the convex face of the second parabolic reflector facing the lens, and further characterised in that the first and second parabolic reflectors are double-sided reflective. A lamp as claimed in claim 1, wherein the pole (101) is fluted. A lamp as claimed in claim 1 or claim 2, wherein the reflectors (113) have respective surfaces, each of which is polished. A lamp as claimed in any one of claims 1 to 3, wherein the reflectors (113) are electroplated. A lamp as claimed in any one of claims 1 t 4, wherein at least one of the reflectors (113) has a plurality of circumferentially-spaced facets (122), thereby providing a multiple radial diffusion of the light emitted from the lamp. A lamp as claimed in any one of claims 1 to 5, wherein adjustment means (100) is provided for angularly adjusting the support (102) relative to the axis of the pole (101). A lamp as claimed in claim 6, wherein the adjustment means includes a gear (100) on the pole and a cooperating arcuate gear (115) on the support (102), and means for locking the gears in a selected angular position of the support relative to the axis of the pole. A lamp as claimed in claim 7, further comprising a restraining collar (103) between the support (102) and the pole (101).

Inventors: YANG JERRY SHUN CHANG, YANG, JERRY SHUN CHANG
Applicants: YANG JERRY S C, YANG, JERRY SHUN CHANG
Application year: 1993
Main classification: F21P1
IPC codes: F21S8, F21Y101, F21V21