JPH0475204A - Bulb type fluorescent lamp device - Google Patents

Abstract

PURPOSE:To enhance the center luminousity of a bulb type fluorescent lamp device and prolong the life of the device by constituting a case of a tubular portion and a large diameter portion having a reflecting surface provided in its inner face, and disposing within a specified range the connecting portion of the tubular portion to the large diameter portion which extends from the sealing end of a fluorescent lamp. CONSTITUTION:A case 2 is formed in such a manner as being broadened with an angle of inclination theta = 45 deg. from its 45-mm position corresponding to 54.2% of the length of a nonlinear fluorescent lamp, and has a maximum diameter of 104mm. A reflecting film 7 is formed on the inner surface of the case 2 and a radiation opening 8 is kept open. An effective reflection surface 9 is extended from a point located between 30 and 80% of the length of the nonlinear fluorescent lamp 1. The center luminousity of the fluorescent lamp is thus enhanced. The cost of the fluorescent lamp is reduced because of the absence of an outer tube globe and the process of forming the reflecting film may be unnecessary according to the material of the case 2, which further reduces the cost; besides, the radiation opening is kept open, thereby preventing the life of the lamp from being shortened by thermal effects.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a compact fluorescent lamp device.

2. Description of the Related Art Conventionally, reflector light bulbs have been used in places that require high ceilings or spot lighting, such as those often found in stores and hotels. However, recently, compact fluorescent lamps have come into use due to their power saving and long lamp life.

Further, as shown in FIG. 3, a compact fluorescent lamp device having a spherical glue flap type outer tube globe l is also used in some cases. In the figure, 1 is a non-linear fluorescent lamp, 2 is a case, 6 is a base, 7 is a reflective film, and 8 is an irradiation port.

Problems to be Solved by the Invention However, when a normal compact fluorescent lamp device is used in a place with a high ceiling or where spot lighting is required, the central luminous intensity is low, so the light emitted from near the irradiated object (floor, product, etc.) There was a problem that the illuminance was insufficient.

This is because the light emitted from the compact fluorescent lamp device is distributed in a way that there is more light in the side direction than in the direction directly below.

Therefore, in order to improve the central luminous intensity, some of the above-mentioned flafter type compact fluorescent lamp devices are used, but this compact fluorescent lamp device has a reflective surface on the side of the sealing part of the non-linear fluorescent lamp. Due to its location, it is not very effective. This is because the light emitting area on the side of the sealing part of a non-linear fluorescent lamp is smaller than that on the tip side of the bending part, and the amount of light emission decreases due to the electrodes in the sealing part. In addition, if a reflective film is provided on the inner surface of the sealing part of the spherical outer tube globe, the focal point of the reflective film will be too close to the non-linear fluorescent lamp, and the light will not be converged but will be diffused. There was a problem in that the desired effect could not be obtained unless the outer diameter of the tube was increased.

In addition, it has been proposed to change the shape of the outer tube globe so that the reflective surface is located in the area with good luminous efficiency to increase the central luminous intensity (Japanese Patent Laid-Open No. 1-30460).
In this case, there was a problem in that it was costly, and since it was covered with an outer bulb, heat was trapped inside, leading to a short lifespan of the non-linear fluorescent lamp.

The present invention has been made in view of the above points,
We provide a compact compact fluorescent lamp device that has improved light distribution characteristics, improved irradiation efficiency and center luminous intensity, and eliminates the outer tube globe to significantly reduce costs and extend the lifespan. be.

Means for Solving the Problems The compact fluorescent lamp device of the present invention comprises a non-linear fluorescent lamp and a case of a light bulb cap material that holds the fluorescent lamp and is attached to a holder that houses a lighting device. In the compact fluorescent lamp device, the case has a cylindrical part and a large-diameter part connected to the cylindrical part and larger in diameter than the cylindrical part, and an irradiation lamp opening at a tip of the large-diameter part. a reflective surface is provided on the inner surface of at least the large-diameter portion of the case, and the large-diameter portion is shaped to reflect light emitted from the fluorescent lamp toward the irradiation port; When the length from the sealed end of the lamp to the tip of the bent part of the fluorescent lamp is l, the connecting part between the cylindrical part and the large diameter part is 30 mm from the sealed end to the tip of the bent part of the fluorescent lamp. % to 80%.

Function: As mentioned above, the tip of the non-linear fluorescent lamp has a larger light emitting area without the reduction in the amount of light emitted by the electrodes compared to the sealed portion.

According to the present invention, by reflecting the light toward the irradiation port on the reflective surface, it is possible to irradiate the object to be irradiated with converged light.

In addition, since the case is used as a reflective surface, there is no need for an outer tube globe, reducing costs, and since it does not completely cover the fluorescent lamp, it prevents heat from building up and shortening the life of the fluorescent lamp. I can do it.

Further, in the present invention, the connecting portion between the cylindrical portion and the large diameter portion is
% to 80%, but the connecting part between the cylindrical part and the large diameter part was
If it is less than 0%, the light emitted from the fluorescent lamp will not converge in any direction (for example, directly downward). On the other hand, 8 of l
If it exceeds 0%, the light emitted from the fluorescent lamp will be reflected and absorbed within the cylindrical part, and no light will come out from the irradiation port.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings.

As shown in FIGS. 1 and 2, the compact fluorescent lamp device according to the embodiment of the present invention includes a non-linear fluorescent lamp 1, a holder 3 holding it, a case 2 joined to this boulder, The main components are a ballast 4 provided inside the case, a starter 5, and a cap 6 attached to the case 2. Fluorescent lamp 1, ballast 4. The electrical connections of the starter 51 and the base 6 are conventional. The shape of case 2 is 45 mm, which is 54.2% of the length of non-linear fluorescent lamp 1, which is 83 mm.
It has a spread of an inclination angle θ#45° from the position of mm, and the maximum diameter is 4+nm.

A reflective film 7 (for example, an aluminum vapor-deposited film or plating) is formed on the inner surface of the case 2 (in this embodiment, an aluminum vapor-deposited film), and the irradiation port 8 is left open.

In this embodiment, the position of the effective reflecting surface 9 was set at 52.4%, but in addition, the position of the effective reflecting surface 9 was set at 30% to 30% of the length l of the non-linear fluorescent lamp 1.
Any point between 80% is acceptable.

Furthermore, if the case 2 is made of a material with high reflectance, such as white or mirror-like, the case itself becomes a reflective surface, so processing such as aluminum vapor deposition is not necessary.

A 17 watt compact fluorescent lamp device was fabricated by incorporating a 13 watt non-linear fluorescent lamp 1 with the above configuration into a case 2 with a reflective film 7 formed on the inner surface, and the results of measuring the light distribution characteristics are shown below. Shown in the table.

At the same time, a conventional reflector-type compact fluorescent lamp device with a maximum diameter of 120 plates and a T17 as a reference example are also installed.
A 17W compact fluorescent lamp installation with a W diffusion globe was also measured.

(Left below) From the table above, the product of the present invention has a
An improvement in central luminosity can be seen.

In addition, since there is no outer tube globe, costs are reduced, and depending on the material of the case 2, there is no need for reflective film molding, further reducing costs.In addition, since it is open, the lifespan is shortened due to the influence of heat. can be prevented.

Effect of the invention According to the present invention, the following effects can be obtained.

■Compared to the conventional glue-on bulb type fluorescent lamp device, it is smaller and larger, and the center luminous intensity is improved.

■ Since there is no outer tube globe, costs are reduced and heat is not trapped, extending the lifespan.

■ Depending on the material of the case, there is no need for reflective film fabrication processes such as aluminum vapor deposition, which can reduce costs.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a compact fluorescent lamp device according to an embodiment of the present invention, FIG. 2 is a bottom view, and FIG. 3 is a front view of a conventional self-ballasted fluorescent lamp device. 1... Non-linear fluorescent lamp, 2... Case, 3... Holder, 4... Ballast, 5...
... Starter, 6 ... Mouthpiece, 7 ...
... Reflection film, 8 ... Irradiation port, 9 ... Effective reflection surface. Name of agent: Patent attorney Shigetaka Awano and 1 other person! Non-direct order ■Dog fluorescent light diagram diagram

Claims (1)

[Claims] In a compact fluorescent lamp device comprising a non-linear fluorescent lamp and a case with a light bulb base that holds the fluorescent lamp and is attached to a holder housing a lighting device, the case has a cylindrical portion and The case has a large diameter part that is connected to the cylindrical part and has a larger diameter than the cylindrical part, an irradiation port is provided at the tip of the large diameter part, and a reflective surface is provided on at least the inner surface of the large diameter part of the case. , the large diameter portion is shaped to reflect light emitted from the fluorescent lamp toward the irradiation port, and the length from the sealed end of the fluorescent lamp to the tip of the bent portion of the fluorescent lamp is When is l, the connecting part between the cylindrical part and the large diameter part is arranged so as to be located within a range of 30% to 80% of the length l from the sealed end. Features a compact fluorescent lamp device.