KR200255614Y1 - Apparatus for reading film builted-in backlight unit - Google Patents

Abstract

The present invention relates to a medical film reading device with a built-in backlight unit for reading a medical film using a light source emitted by a backlight unit, the present invention is a frame, a backlight unit configured in the frame and It is composed of a film holder which is installed in the film holder housing installed in the longitudinal direction on the upper one side end of the frame.

Description

Medical film reader with built-in backlight unit {APPARATUS FOR READING FILM BUILTED-IN BACKLIGHT UNIT}

The present invention relates to a medical film reading device with a built-in backlight unit for reading a medical film using a light source emitted by a backlight unit.

Referring to FIGS. 1A and 1B, a medical film reading apparatus using a hot cathode fluorescent lamp as a light source according to the related art is described. First, the film reading apparatus 114 includes a hot cathode fluorescent lamp 102 used as a light source on an inner bottom surface of the frame 100. A plurality of fixed installations, the film cathode surface 104 made of acrylic for placing the film on the hot cathode fluorescent lamp 102 is installed. At this time, the film mounting surface 104 is provided at a predetermined distance from the hot cathode fluorescent lamp 102 in order to reduce the illuminance deviation from the hot cathode fluorescent lamp 102.

Subsequently, a film holder housing 106 extends and is formed on one end of the frame 100, and the film holder 108 is formed in the film holder housing 106 to fix the film in the film insertion direction 112. The film holder 108 is made of a sponge 110 or a roller (not shown).

As described above, the medical film reading apparatus using the conventional hot cathode fluorescent lamp has a problem in that a large amount of power is consumed because a plurality of hot cathode fluorescent lamps must be installed, and also a large number of hot cathode fluorescent lamps must be installed.

In addition, the conventional medical film reading apparatus using a hot cathode fluorescent lamp has a problem that the volume is increased because a constant distance must be maintained between the hot cathode fluorescent lamp and the film rough surface in order to reduce the roughness deviation from the hot cathode fluorescent lamp.

An object of the present invention devised to solve the above problems is to provide a medical film reading device with a built-in backlight unit for reading a medical film using a light source emitted by the backlight unit.

In addition, an object of the present invention is to provide a medical film reading device with a built-in backlight unit having a compact design that can be made thin by using the backlight unit as a light source generator.

Another object of the present invention is to provide a medical film reading device with a built-in backlight unit that can reduce the power consumption by using the backlight unit as a light source generator.

Figure 1a is a cross-sectional view showing a state of the prior art in front view, Figure 1b is a-a 'cross-sectional view of FIG.

Figure 2 is a cross-sectional view showing a front view of the medical film reading apparatus of the present invention.

3A is a cross-sectional view taken along line a-a 'of FIG. 2 showing a backlight unit according to the present invention, and FIG. 3B is a cross-sectional view taken along line a-a' of FIG. 2 showing another embodiment of a light guide plate.

4 is a cross-sectional view taken along the line b-b 'of FIG. 2 showing the inverter installed in the frame according to the present invention;

5 is a cross-sectional view showing a state in which the inverter of the medical film reading device of the present invention is installed from the outside.

<Explanation of symbols for the main parts of the drawings>

2: Medical film reader 4: Backlight unit 6: Frame

8: Cold cathode fluorescent lamp 10: Fluorescent lamp housing 12: Reflective sheet

14: Light guide plate 16: Diffusion plate 18: Pattern

20: V-cutting shape 22: Inverter 24: Inverter frame

26: power supply 28: electromagnetic wave shield 30: film holder housing

32: film holder 34: film insertion direction 36: spherical shape

According to a feature of the present invention for achieving the above object, it comprises a frame, a backlight unit configured in the frame, and a film holder installed in the film holder housing installed in the longitudinal direction at one upper end of the frame The backlight unit may include a light guide plate installed in the frame, a cold cathode fluorescent lamp installed in a longitudinal direction at both end surfaces of the light guide plate, a reflective sheet provided below the light guide plate, and a diffuser installed above the light guide plate. It consists of plates.

In addition, a pattern is formed on the bottom surface of the light guide plate to uniformly distribute the light over the entire area of the screen. The pattern is a V-cutting shape or a spherical shape, and is connected to the cold cathode fluorescent lamp inside the frame. And an inverter for supplying power. At this time, the inverter is mounted in the inverter frame, the inside of the inverter frame is coated with an electromagnetic shielding agent.

On the other hand, the inverter may be mounted outside the frame to be connected to the cold cathode fluorescent lamp to drive, the film holder may be made of a silicon material.

These objects, features and advantages of the present invention will be more readily understood by reference to the accompanying drawings and the following detailed description. In addition, this embodiment is only illustrative for the purpose of understanding and not intended to limit the present invention.

The present invention relates to a medical film reading device with a built-in backlight unit for reading a medical film using a light source emitted by a backlight unit.

First, the backlight unit 4 is embedded in the frame 6, and the frame 6 is molded by plastic injection, and a metal or aluminum material may be used. In addition, the backlight unit 4 includes a cold cathode fluorescent lamp 8, a fluorescent lamp housing 10, a reflective sheet 12, a light guide plate 14, and a diffusion plate 16.

As shown in Figs. 2 and 3A, the backlight unit 4 in the frame 6 receives the light emitted from the cold cathode fluorescent lamp 8 using a transparent acrylic panel to uniformly distribute the light over the entire screen area. A light guide plate 14 for distributing is installed.

A pattern 18 having a predetermined area and a shape for uniformly diffusing the amount of light is formed on the bottom surface of the light guide plate 14, and the shape of the pattern 18 is a breaking shape 20. ) Or a screen printing method, it is formed into a spherical shape 36 (see FIG. 3B), the size of which gradually increases as the distance from the cold cathode fluorescent lamp 8 increases.

In addition, fluorescent lamp housings 10 (or reflecting plates), which serve to reflect light emitted from the cold cathode fluorescent lamp 8, are respectively provided at both end surfaces of the light guide plate 14 in the longitudinal direction, and the fluorescent lamp housing 10 ) Is made of '' 'shaped to surround the cold cathode fluorescent lamp (8).

In addition, each of the fluorescent lamp housing 10 is provided with a cold cathode fluorescent lamp 8 for emitting light in the longitudinal direction, one end in the frame 6, the inverter frame 24 is provided separately, Inverter frame 24 is equipped with an inverter 22 connected by wires to each of the cold cathode fluorescent lamps 8 (see FIG. 4 attached).

The inverter 22 converts the DC power supplied through the power supply 26 into AC power to supply the cold cathode fluorescent lamp 8, so that the cold cathode fluorescent lamp 8 is turned on.

At this time, the inverter frame 24 is integrally formed with the frame 6, the power supply 26 is connected to the outside of the frame 6 as shown in FIG.

In addition, the inside of the inverter frame 24 is coated with an electromagnetic wave shield 28, thereby reducing the electromagnetic wave generated by the inverter 22 is operated by a voltage of about 1000 volts AC and a power of several tens of kilohertz. give.

Subsequently, a lower portion of the light guide plate 14 is provided with a reflective sheet 12 which reflects light exiting to the bottom surface of the light guide plate 14 and returns the light back to the light guide plate 14, and the light guide plate 14 is provided. A diffusion plate 16 is fixedly installed by an adhesive member at an upper portion of the light guide plate 14 to scatter light emitted from the surface of the light guide plate 14 in a predetermined direction so as to spread evenly over the surface of the light guide plate 14.

Meanwhile, referring to aa 'cross-sectional view shown in FIG. 2, the film holder housing 30 is integrally formed in the longitudinal direction on one side end of the frame 6, and the film holder housing 30 is formed in the film holder housing 30. The film holder 32 is installed in the longitudinal direction to insert the film seated on the diffusion plate 16 in the film insertion direction 34 so as to be fixed to the film holder 32. At this time, the film holder 32 is made of a silicon material, the material is soft and durable.

In addition, as shown in FIG. 5, an inverter 22 connected to each cold cathode fluorescent lamp 8 installed at both ends of the frame 6 may be installed externally, and the inverter 22 is connected to the frame 6. In the case of installing inside, it is possible to implement a clean design aesthetically, and when installed outside the frame 6, there is an ease of simply replacing the inverter 6 without disassembling the frame 6 when replacing the inverter 22.

Accordingly, the present invention uses a backlight unit as a light source of the medical film reading apparatus, so that the thickness of the medical film reading apparatus can be made thin, thereby implementing a medical film reading apparatus having a compact design.

In addition, the present invention can not only reduce the power consumption by replacing a plurality of fluorescent lamps with a backlight unit, but also has the effect of emitting bright white light using a small number of lamps.

Claims (10)

delete Frame, A backlight unit configured in the frame; Consists of a film holder which is installed in the film holder housing installed in the longitudinal direction at the upper end of the frame, The backlight unit is A light guide plate installed in the frame; Cold cathode fluorescent lamps which are respectively provided in the longitudinal direction on both side end portions of the light guide plate; A reflection sheet installed below the light guide plate; Medical film reading device with a built-in backlight unit, characterized in that consisting of a diffusion plate installed on top of the light guide plate. The method of claim 2, Medical film reading device with a built-in backlight unit, characterized in that the bottom surface of the light guide plate is formed with a pattern that uniformly distributes the light over the entire screen area. The method of claim 3, wherein The pattern is a medical film reading device with a built-in backlight unit, characterized in that the cutting shape. The method of claim 3, wherein Medical pattern reading device with a built-in backlight unit, characterized in that the pattern is a spherical shape. The method of claim 2, The medical film reading device with a built-in backlight unit, characterized in that the frame further comprises an inverter connected to the cold cathode fluorescent lamp to supply power. The method of claim 6, The inverter is a medical film reading device with a built-in backlight unit, characterized in that mounted in the inverter frame. The method of claim 7, wherein The inside of the inverter frame is a medical film reading device with a built-in backlight unit, characterized in that the coating with an electromagnetic wave shield. The method according to claim 1 or 2, A medical film reading device with a built-in backlight unit, characterized in that the inverter is configured to be connected to the cold cathode fluorescent lamp to be driven outside the frame. The method of claim 1, The film holder is a medical film reading device with a built-in backlight unit, characterized in that consisting of a silicon material.