JPH117821A - Annular fluorescent light fixture - Google Patents

Abstract

(57) Abstract: An annular fluorescent lamp device with high light efficiency, in which light loss due to a filler 26 and a lamp holder 12 is reduced. An instrument body is provided. The apparatus includes a double annular annular fluorescent lamp 20 arranged on the lower surface side of the apparatus main body 10. The apparatus main body 10 includes a plurality of lamp holders 12 extending downward and elastically removably holding the annular fluorescent lamp 20. The annular fluorescent lamp includes a small diameter ring 22 and a large diameter ring 24 having different ring diameters. The annular fluorescent lamp 20 includes a plurality of fillers 26 that fill the gap between the small-diameter ring 22 and the large-diameter ring 24 and connect the locations. In the present invention, each lamp holder 1
2 is made to match the position where the filler 26 is arranged.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an annular fluorescent lamp apparatus having a double annular annular fluorescent lamp.

[0002]

2. Description of the Related Art An annular fluorescent lamp fixture having a structure including a fixture body and a double annular annular fluorescent lamp disposed on the lower surface side of the fixture body is known. The apparatus body includes a plurality of lamp holders extending downward and resiliently and removably holding the annular fluorescent lamp. The annular fluorescent lamp includes a small diameter ring and a large diameter ring having different ring diameters. The annular fluorescent lamp includes a plurality of fillers that fill the gap between the small-diameter ring and the large-diameter ring and connect the locations. The holding position of each of the lamp holders is different in the location of the filler.

[0003]

Each of the lamp holders shields the light of the annular fluorescent lamp at that location and forms a dark portion. In addition, each of the fillers blocks light at the location and forms a dark portion. For convenience of explanation, the former is defined as a lamp holder dark area, and the latter is defined as a filler dark area. In the conventional device, each lamp holder dark portion and each filler dark portion are present together. In other words, it is full of dark areas. For this reason, the light efficiency decreases. An object of the present invention is to alleviate the degree of reduction in light efficiency due to each dark portion and increase light efficiency.

[0004]

The instrument of the present invention comprises an instrument body. The apparatus includes a double annular annular fluorescent lamp arranged on a lower surface side of the apparatus main body. The apparatus body includes a plurality of lamp holders extending downward and resiliently and removably holding the annular fluorescent lamp. The annular fluorescent lamp includes a small diameter ring and a large diameter ring having different ring diameters. The annular fluorescent lamp includes a plurality of fillers that fill the gap between the small-diameter ring and the large-diameter ring and connect the locations. In the present invention, the holding position by each of the lamp holders is matched with the location of the filler. According to the present invention, the positions of the dark portion of the lamp holder and the dark portion of the filler are adjusted to achieve high light efficiency. Filler dark areas are dark dark areas, and other areas are bright light areas. According to the present invention, the lamp holder is arranged in a dark portion avoiding a bright portion. Although the lamp holder blocks light, it is more advantageous in terms of light efficiency to block a small amount of light in a dark portion than to block a large amount of light in a bright portion.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. The illustrated annular fluorescent lamp device includes a device main body 10. The apparatus includes a double annular annular fluorescent lamp 20 arranged on the lower surface side of the apparatus main body 10. The apparatus main body 10 includes a plurality of lamp holders 12 extending downward and elastically removably holding the annular fluorescent lamp 20. The annular fluorescent lamp includes a small diameter ring 22 and a large diameter ring 24 having different ring diameters. The annular fluorescent lamp 20 includes a plurality of fillers 26 that fill the gap between the small-diameter ring 22 and the large-diameter ring 24 and connect the locations. In the present invention, the holding position of each lamp holder 12 is matched with the location of the filler 26. Supplement the explanation.
The lamp holders 12 are made of a metal spring, have a total of three lamps, and are arranged radially at intervals of 120 degrees. Filler 26
Are three, and are arranged radially at intervals of 120 degrees. The small-diameter ring 22 and the large-diameter ring 24 are connected at a base 28 and each filler 26. Reference numeral 14 denotes a lamp socket connected to the end of the lamp wiring cord 16 extending from the appliance body 10, and is connected to the base 28. Each lamp holder 1
2 forms a lamp holder dark part, and the filler 26 forms a filler dark part. The lamp holder dark part of the present invention is formed at the place of the filler dark part. Therefore, the total number of dark portions is reduced by half. The lamp holder 12 blocks the light emitted from the annular fluorescent lamp 20, which is a dark portion of the filler, and since the total amount of emitted light is originally small, the amount of light blocked or absorbed by the lamp holder 12 is reduced. , It is advantageous in terms of light efficiency.

[0006]

According to the present invention, the lamp holder dark area is overlapped with the filler dark area. According to this, light loss due to the filler and the lamp holder is reduced, and a ring-shaped fluorescent lamp device with high light efficiency is obtained.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of the device of the present invention.

FIG. 2 is a bottom view of the device main body viewed from below.

[Explanation of symbols]

10: instrument body, 12: lamp holder, 20: annular fluorescent lamp, 22: small diameter ring, 24: large diameter ring, 26: filler

Claims (1)

[Claims] 1. An apparatus main body (10) comprising a double annular annular fluorescent lamp (20) disposed on the lower surface side of the apparatus main body (10), wherein the apparatus main body (10) extends downward. A plurality of lamp holders (12) for resiliently and removably holding the annular fluorescent lamp (20), wherein the annular fluorescent lamp (20) has a small diameter ring (22) and a large diameter ring having different ring diameters. (24), the annular fluorescent lamp (20) includes a plurality of fillers (26) which are filled in gaps between the small-diameter ring (22) and the large-diameter ring (24) and connect the portions. An annular fluorescent lighting device characterized in that the holding position of the lamp holder (12) is matched with the location of the filler (26).