JPS6028154A - Display element - Google Patents

Abstract

PURPOSE:To obtain a display element with a high light output by housing a fluorescent lamp in a container provided with a lens on one end of an untransparent cylindrical body and a base section having a protruded connecting terminal on the other end. CONSTITUTION:Since a lens section 3 is formed on a cylindrical section 2, even when a fluorescent lamp 7 bent in a U-shape and having a small portion usable for a luminous display section is used, the luminous display section 11 is expanded by the lens section 3, the effective luminous area is increased, thereby the light quantity is also increased. Moreover, the inner surface of the cylindrical body 2 is formed in a reflection surface A, thus the light radiated from the inner side of the luminous display section 11 or a straight tube section is repeatedly reflected and diffused by the inner surface of the cylindrical body 2 and is guided to the lens section 3, thus the light from areas other than the luminous display section 11 can be also utilized effectively. In addition, ventilation can be excellently performed through ventilation holes 12, 12 provided near the base section 5 and near the lens.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a display element suitable for use in an electronic display device or a display.

Letters and ii outdoors! It has been proposed to use fluorescent lamps, which require relatively little quenching power and have relatively high brightness, as display elements for use in electronic display devices that display Il images, guide signs, displays, etc. - Conventionally, in the case of a device using a fluorescent lamp as a display element, for example, the one described in Japanese Utility Model Publication No. 48-23343, a straight tube-shaped fluorescent lamp is bent into a U-shape, and this bent part is used as a light-emitting display. When you look at this thing from the front,
The light-emitting display portion is shaped like a single character, and the light-emitting area (hereinafter referred to as effective light-emitting area) that can be used as the light-emitting display portion of the arc tube portion of the fluorescent lamp is small. therefore,
There is a disadvantage that the amount of light per unit area decreases, and the visibility of the display is poor, especially during the daytime. Further, it is known that when the light temperature of a fluorescent lamp is within the range of 0.degree. C., the display surface brightness is high and the luminous efficiency is good. Therefore, if a platform with a display device installed outdoors or a fluorescent lamp serving as a display element is exposed to the outside air, the surface temperature of the bulb will drop below the appropriate range, resulting in a low light output.
; This may cause problems such as failure and instability.

For this reason, as seen in Japanese Patent Application No. 58-4806, a fluorescent lamp is housed in a cylindrical body with a translucent cover on the front, a vent is provided in the cover and the cylindrical body, and the surface of the lamp bulb is A display device has been proposed in which the temperature of the coldest part of the display can be maintained within an appropriate range with high display brightness.

This product is known to be able to maintain the bulb surface temperature of the fluorescent lamp within an appropriate range to some extent, but since the light-transmitting cover does not have light-controlling properties, Those using fluorescent lamps that are shaped like letters have a small effective light emitting area, a small light layer, and poor visibility, which cannot be overcome.Also, this type of lamp does not have ventilation in the transparent cover exposed in front of the display device. 1], there is a risk that dust or water may enter the cylinder and have an adverse effect on lamps, lighting devices, etc., so improvements are desired.

The present invention has been made in consideration of the above-mentioned circumstances, and it is possible to increase the effective light emitting area even when using a straight tube fluorescent lamp or a fluorescent lamp whose light emitting display part is in the shape of a single character. It is an object of the present invention to provide a display element that can effectively prevent the intrusion of water droplets, control the surface temperature of a lamp bulb within an appropriate range, and obtain a high light output.

Next, the present invention will be explained in detail. As mentioned above, it is known that fluorescent lamps are used as display elements for electronic display devices, displays, guidance displays, and the like.

However, those constructed from fluorescent lamps without display elements have the above-mentioned practical problems.

1-However, fluorescent lamps consume relatively little power and have high brightness, allowing for a large effective light-emitting area.Furthermore, the temperature of the lamp bulb surface can be maintained within an appropriate range, making them easy to handle. The present invention is based on the knowledge that a fluorescent lamp can be fully utilized as a display element if it can be easily made and can prevent the intrusion of water droplets, dust, etc.

The present invention provides a lens portion at one end of a non-transparent cylindrical body portion,
A container is formed by providing a cap portion with a connecting terminal protruding from the other end, and a fluorescent lamp is housed in the container, and a space is provided near the lens portion excluding the lens portion and in the vicinity of the cap portion of the container. A display element is formed by forming a plurality of vent holes.

In the present invention, even if the fluorescent lamp is bent into a straight tube shape or a U-shape and the portion used as the light emitting display portion is small, the effective light emitting area can be increased by the lens portion. Furthermore, since the lamp is housed in a light-impermeable cylindrical body, light from sources other than the light-emitting display section can be effectively used, protecting the fluorescent lamp and making it easy to handle.

Furthermore, since the vent is formed on the outside of the lens, the fluorescent lamp is not directly exposed to the outside air, and the surface temperature of the lamp bulb can be maintained within an appropriate range. This prevents intrusion and adverse effects on the lamp.

In the present invention, the cylindrical body of the container may be made of any material, but for example, it is formed of a cylindrical body of a transparent synthetic resin with a lens portion integrally formed at one end, and the outer surface is coated with an opaque coating. , and the inner surface can be configured as a reflective surface.

Further, the cylindrical body of the container may be made of metal, such as aluminum, and may be provided with a lens portion at one end. Furthermore, the lens portion can be constructed of a focusing lens made of a convex lens, for example. Further, the fluorescent lamp may be a tube-shaped fluorescent lamp, and the middle portion may be bent into a U-shape to form the bent portion as a light-emitting display portion. Further, it can be formed near the side part and the other end of the cylindrical body part to be illuminated. Further, the ventilation hole on the other end side can be formed to penetrate through the base part.

Furthermore, the fluorescent lamp may be formed with a phosphor film that emits light of red, green, blue, etc., and may be configured to emit the desired color of light by itself. It may also be constructed by forming the outer surface and applying a color coating to the outer surface. In this way, it can be used as a color display element. Furthermore, the lens portion may have the same color as the luminescent color of the fluorescent lamp.

Next, embodiments of the present invention will be described with reference to the drawings. 1 and 2 show a first embodiment of the invention. 1 is a container, and this container 1 is made of translucent lumber, for example, a translucent synthetic resin, in a cylindrical shape (-:l), and the outer surface is coated with opaque paint A. A lens part 3 provided integrally with the cylindrical body part 2 at one end of the cylindrical body part 2, and a base part 5 formed by protruding two-pronged prongs 4, 4 at the other end of the cylindrical body part 2. It is possible to form the VI of the C1 cylindrical body part 2 on the reflective surface 6 by, for example, painting it white.

Further, the lens portion 3 is formed of a convex lens and has a diameter of 1/2.

Reference numeral 7 denotes a fluorescent lamp, and this fluorescent lamp 7 has a glass bulb 8 with four tube sizes, and a light film P is connected to the inside of the glass bulb 8.
0.005 to 0.0.
A single discharge path 9 is formed by filling with mercury at a pressure of 0.06 mm Hg and argon gas at a pressure of several mm Hg, and is sealed with filament electrodes 10 and 10 provided at both ends.b). In this way, this fluorescent lamp 7 has an intermediate tone bulb bent into a U-shape to form a light emitting display section 11:2 at the bent portion, and each electrode 10', 1.0 is connected to a connection terminal of the container 1. 4, 4, and the light emitting display section 11 is housed in the container 1 facing the lens section 5. 12.12... are a plurality of vent holes formed in the container 1, and these vent holes 12
, 12. are formed apart from each other near the lens, excluding the lens portion 3, and near the base portion 5).

In this embodiment, one vent hole 12, 11 is formed on the circumferential side of the lens portion 3 side of the main body portion 2 (1≦14), and one vent hole is formed on the circumferential side of the other end side of the cylindrical rest portion 2. I am an individualized Jt.

According to the embodiment of the present invention described above (-), the cylindrical xylem 2
Since the lens portion 3 is formed at The light emitting area expands, the effective light emitting area becomes larger, and the amount of light increases.Furthermore, since the inner surface of the cylindrical body part 2 is formed into a reflective surface A, the light i emitted from the inside of the light emitting display part 11 and the straight tube part is The light is repeatedly reflected and diffused on the inner surface of the cylindrical body part 2 and guided to the lens part 3, and light other than the light emitting display part 11 can also be effectively used. The ventilation holes 12, 12 provided provide good ventilation (two steps can be performed).The cylindrical body portion 2 is made of synthetic resin, and the connection terminal 4.4 connected to the fluorescent lamp 8 protrudes from the base portion 5. Since the fluorescent lamp 7 is protected by the cylindrical rest part 2 and is well prevented from being damaged, the fluorescent lamp 7 can be easily attached to a connecting device (not shown) such as a socket connected to the connecting terminals 4, 4. This can be done reliably by holding the shaped body part 2, and it can be easily attached to and detached from the connecting device.

FIGS. 3 and 4 show a second embodiment of the present invention, and the same parts as in the first embodiment are given the same reference numerals and their explanation will be omitted. In this second embodiment, the cylindrical body part 2 of the container 1 is formed of a metal cylindrical body, for example, aluminum, and a lens part 3 is provided at one end, and a base part 5 is provided at the other end.
is formed. Then, as a fluorescent lamp 7,
A straight tube type fluorescent lamp is housed in the cylindrical body part 2 along the axial direction, and vent holes 12 and 12 are formed in the cylindrical body part 2.

Since this uses a straight tube type fluorescent lamp 8, it is easy to manufacture the lamp. Furthermore, since the cylindrical body 2 of the container 1 is made of metal, it has high mechanical strength and is easy to handle.

As described in detail above, the present invention has a fluorescent lamp housed in a container having a lens provided at one end of a non-transparent cylindrical rest and a cap portion with a connecting terminal protruding from the other end. Even if the fluorescent lamp has a small portion used as a light-emitting display section, the effective light-emitting area can be increased by the lens section, and the display effect can be further improved. Also,
Since the lamp is housed in an opaque cylindrical body, light from sources other than the light emitting display can be used effectively, the fluorescent lamp is protected, and it can be easily and reliably connected to and removed from connection devices such as sockets. It's six. (2) Since the vent is formed in a location other than the lens, the fluorescent lamp is not exposed directly to the outside air, and the surface temperature of the lamp bulb can be maintained within an appropriate range, while also preventing water droplets, dust, etc. Intrusion is well prevented.

[Brief explanation of the drawing]

The drawings show embodiments of the display element of the present invention, FIGS. 1 and 2 are a front view and a side sectional view of the first embodiment, and FIGS. 3 and 4 are a front view of the second embodiment. and a side sectional view. 1... Capacity 2... Cylindrical part 3... Lens part 5... Base part 4.4... Connection terminal 7... Fluorescent lamp 12,
12...Vent patent applicant Toshiba Toso Co., Ltd. Agent Patent attorney Ono 1) Yoshihiro

Claims (1)

[Claims] (1) Non-transparent cylindrical body part 2 This cylindrical body part includes a lens part provided at one end of the cylindrical body part and a base part provided at the other end of the cylindrical body part and formed with a protruding connection terminal. With a certain condition. a fluorescent lamp housed in the container and having a quasi-pole connected to the connection terminal; a plurality of vent holes formed at intervals in the vicinity of the lens part of the container excluding the lens part and in the vicinity of the base part; A display element comprising: