KR101511664B1 - lighting source module for medical treatment - Google Patents

Abstract

The present invention relates to a medical illumination light source module, comprising: a substrate; A plurality of LEDs mounted on the substrate in a matrix form; And a plurality of bowl-shaped reflectors, each of the LEDs being positioned at the center of the bottom and reflecting the light generated from the LEDs, And a vertical blocking unit for blocking the vertical light generated from the LED, the upper blocking unit being spaced apart from the LED.
The medical illumination light source module according to the present invention removes bright light spots caused by vertical light generated from a plurality of LEDs, and forms a wide focus area at a certain distance, , The uniformity of the illumination light pattern is high, the color separation phenomenon can be reduced, the illumination efficiency can be enhanced, and the manufacturing cost can be reduced with a simple structure.

Description

[0001] Lighting source module for medical treatment [

The present invention relates to a light source module for a medical illumination, and more particularly, to a medical illumination light source module having high illumination light pattern uniformity, less color separation, and high illumination efficiency.

In addition to light energy that converts electrical energy into light energy, it can be used to identify objects in the dark, and in recent years, it has also been used to produce indoor decorations and a cozy atmosphere. Such illumination lamps are manufactured in various forms, and conventionally, a lighting apparatus using an incandescent lamp or a fluorescent lamp has been mainly used.

Although incandescent lamps are inexpensive to manufacture, there is a lot of heat generated in converting electric energy into light energy. Recently, the use of fluorescent lamps has been avoided. Fluorescent lamps have a higher energy conversion efficiency than incandescent lamps, There is a problem of short life span.

In order to solve these problems, LED (Light Emitting Diode) has recently been developed which can obtain a high illuminance with a semi-permanent lifetime. It has advantages such as fast processing speed of LED semiconductors and low power consumption, and is becoming a next-generation strategic product due to its environment-friendly and energy-saving effect.

An LED device is a junction of p-type and n-type semiconductors. When a voltage is applied, the LED device combines electron and hole to emit energy corresponding to the bandgap of the semiconductor in the form of light. Optoelectronic device. Recently,

LEDs have been developed and can be used in a variety of applications such as large outdoor signs for outdoor use, traffic lights, automobile instrument panels, home appliances, neon signboards, medical equipment, warning and guidance lights and so on.

FIG. 1 is an exploded perspective view of an illumination lamp shown in FIG. 1, and FIG. 3 is an exploded perspective view of the illumination lamp shown in FIG. 1. FIG. Sectional view partially showing the illumination lamp shown.

As shown in the drawing, the illumination lamp using the LED, which is the first preferred embodiment of the present invention, includes a fixing member 11 fixed to a wall of a ceiling or the like and having a fastening bolt 11a projected on the other side thereof, And a fastening bolt 11a having a rectangular frame shape is inserted

A frame 12 having a through hole 12a formed therein and having a stabilizer 13 connected to an external power source in an internal accommodating space and a frame 12 provided at each of four corners of the frame 12, A fixing bracket 13 formed with pairs of fixing holes 13a and 13a and formed with a fastening hole 13b penetrating along the central portion thereof and a spacer plate 13 having opposite ends inserted into the insertion groove 13a of the opposing fixing bracket 13 And a female screw 16a passing through the four corners of the frame 12 and fastened to the bolts 15 protruding through the fastening holes 13b of the fastening bracket 13 is formed at the center of the fixing bracket 13, And a plurality of LEDs 21 which are electrically connected to the ballast 13 and emit light are mounted on one side and the fastening bolts 11a are passed through A printed circuit board 20 in which a through hole 20a is formed and a magnet 22 is mounted on four corners of the other side, And is attached to one side of the printed circuit board 20 on which the LED 21 is mounted and is surrounded by the respective LEDs 21 and is inclined so as to form a square cone having its cross section gradually enlarged centering on the LED 21 A reflective plate 23 on which a true reflection surface 23a is formed and a transmissive member 25 on which the printed circuit board 20 is embedded and through which light is transmitted and which has a through hole 25a through which the fastening bolt 11a passes, And a fixing plate 26 which is fastened to an end of the fastening bolt 11a and has a female screw 26a formed at the center thereof so as to fix the transmission member 25 thereto.

The transmissive member 25 may be formed of a translucent body, a variety of colors may be printed, or a rugged surface may be provided so that light may be irregularly reflected. However, the transmissive member 25 may be formed of a flat transparent body, do.

However, in the case of such a conventional LED lighting source, in the area where it is necessary to form a uniform illumination light for a specific point, There has been a problem that uniformity of the illuminated surface is deteriorated due to the illumination in which the bright spots appear in the conventional LED illumination lamp and the color separation phenomenon is severe. The conical reflection surface has a problem that it is difficult to focus on a specific area because a reflection area of a plurality of LED lights is widened.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the problems described above to provide a medical illumination light source module capable of reducing the color separation phenomenon and improving the illumination efficiency and reducing the manufacturing cost by a simple structure It is.

According to an aspect of the present invention, A plurality of LEDs mounted on the substrate in a matrix form; And a plurality of bowl-shaped reflectors, each of the LEDs being positioned at the center of the bottom and reflecting the light generated from the LEDs, And a vertical blocking unit for blocking the vertical light generated from the LED, the upper blocking unit being spaced apart from the LED.

Preferably, the reflective portion is a boundary portion in which adjacent reflection portions overlap at least a part of at least a pair of rims, and the boundary portion is concave. The reflection surface reflecting light in the reflection portion is preferably horizontal and / Or a plurality of curved grooves having a plurality of curvature radii in the vertical direction are formed side by side so that an asymmetric pattern is formed in which the reflective surface is composed of a plurality of surfaces.

Preferably, the vertical blocking portion is fixedly connected to two legs extending from a lower end of the reflective portion, and the vertical blocking portion may block the vertical light generated in the LED in a disc shape, The vertical blocking portion may be a hemispherical convex surface on the lower surface, and the convex surface may be coated with a reflective material that reflects light generated from the LED to the side.

In addition, it is preferable that the reflector is composed of a rectangular support plate and a plurality of bowl-shaped reflectors which are open at the bottom and concave at the bottom of the support plate, and the reflector is formed such that the reflector pairs, Direction.

The medical illumination light source module according to the present invention removes bright light spots caused by vertical light generated from a plurality of LEDs, and forms a wide focus area at a certain distance, , It is possible to form illumination light with high pattern uniformity and little color separation phenomenon, increase the efficiency of illumination, and reduce manufacturing cost by simple structure.

1 is a perspective view showing an illumination lamp using a conventional LED as disclosed in a Korean Utility Model '20 -0413523'
Fig. 2 is an exploded perspective view of the illumination lamp shown in Fig. 1,
Fig. 3 is a sectional view partially showing the illumination lamp shown in Fig. 1,
4 is a structural coupling diagram of a medical illumination light source module according to an embodiment of the present invention,
5 is a view illustrating the structure of a reflector in a medical illumination light source module according to an embodiment of the present invention,
FIG. 6 is a schematic view showing various examples of the pattern shape of the inner surface of the reflector in the medical illumination light source module according to the embodiment of the present invention,
FIG. 7 is a schematic view illustrating a function and an embodiment of the vertical blocking unit of the reflection unit in the medical illumination light source module according to the embodiment of the present invention,
8 is a schematic diagram of illumination of irradiation light formed through the medical illumination light source module according to the embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish it, will be described with reference to the embodiments described in detail below with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. The embodiments are provided so that those skilled in the art can easily carry out the technical idea of the present invention to those skilled in the art.

In the drawings, embodiments of the present invention are not limited to the specific forms shown and are exaggerated for clarity. Also, the same reference numerals denote the same components throughout the specification.

The expression "and / or" is used herein to mean including at least one of the elements listed before and after. Also, singular forms include plural forms unless the context clearly dictates otherwise. Also, components, steps, operations and elements referred to in the specification as " comprises "or" comprising " refer to the presence or addition of one or more other components, steps, operations, elements, and / or devices.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the drawings.

4 is a structural coupling diagram of a medical illumination light source module according to an embodiment of the present invention. As shown in FIG. 4, the medical illumination light source module according to the embodiment of the present invention includes a substrate 100; A plurality of LEDs 200 mounted on the substrate 100 in the form of a matrix; And a plurality of bowl-shaped reflectors (310) coupled to the substrate (100), each of the LEDs (200) being positioned at the bottom of the bottom and reflecting light generated from the LEDs The reflector 300 is disposed at the center of the bottom of the reflector 310 and extends from the lower portion of the reflector 310. The reflector 300 is spaced apart from the LED 200, .

As described above, in the embodiment of the present invention, a plurality of bowl-shaped reflectors 310 are mounted on a substrate 100 arranged side by side with a plurality of LEDs 200, A vertical blocking part 330 for blocking vertical light of the LED 200 is formed on the upper part of the LED 200 at the center of the lower end of the reflective part 310, The present invention proposes a light source module which removes the bright points generated in the vertical light and has high uniformity of the illumination light pattern and little color separation phenomenon.

 4, the substrate 100 includes a PCB 100, a plurality of LEDs 200 arranged in a matrix form, and a reflector 300 coupled to the upper surface of the substrate 100 to be. The reflector 300 is a core structure of the present invention. The reflector 300 includes a rectangular support plate, a plurality of reflectors 300 formed on the support plate such that the LED 200 is convex in direction, And a vertical blocking unit 330 extending from a lower portion of the reflective unit 310 and spaced apart from the upper portion of the LED 200 and blocking vertical light generated by the LED 200 .

That is, in the illumination light source module according to the embodiment of the present invention, the light in the vertical direction among the light generated from the plurality of LEDs 200 is blocked by the vertical blocking portion 330 through the reflector 300, Side light irradiated to the side surface is reflected by a reflector that is an inner surface of the reflector 310 and is forward irradiated.

FIG. 5 is a view showing a structure of a reflector 300 of a medical illumination light source module according to an embodiment of the present invention. 5, the reflector 300 includes a rectangular support plate and a plurality of bowl-shaped reflectors 310 having open bottoms. The reflector 310 has a plurality of 'A' And a vertical cut-off part 330 which is separated from the bottom part in the upward direction and blocks the vertical light generated from the LED 200 located at the lower part.

The inner surface of the reflector 310, i.e., the inner surface of the reflector 310, has a curved groove 315 having a plurality of radii of curvature, It is preferably formed in a horizontal and / or vertical direction. This is because when the side light generated by the LED 200 is reflected by the reflector and the reflection surfaces are smoothly uniformed, the probability that a shadow appears due to blocking of the vertical light by the vertical blocking unit 330 is increased , It is preferable to form a plurality of reflection surfaces so that the inclination angles of the reflection surfaces may be slightly different.

The reflective portion 310 may have a structure in which a pair of reflective portions 310 having a boundary portion adjacent to each other are arranged side by side in a horizontal direction. The boundary portion may have a concave shape to lower the boundary of the reflective portion 310, It is possible to increase the uniformity of the pattern and reduce the color separation phenomenon by making the LED 200 light overlap each illumination region.

6 is a schematic view showing various examples of the pattern shape of the inner surface of the reflector 310 in the medical illumination light source module according to the embodiment of the present invention. 6, the reflector, which is the inner surface of the reflector 310 that reflects the light generated from the LED 200 in the illumination light source module according to the embodiment of the present invention, has a curved groove 315 having a plurality of curvature radii (FIG. 5A), or vertically (FIG. 5B), or horizontally and vertically (FIG. 5C) .

When the curved grooves are formed in various patterns, the reflection surfaces form reflection surfaces having different tilting angles, thereby increasing the dispersion effect of the LED 200 reflected light, thereby increasing the uniformity of the pattern and reducing the color separation phenomenon. .

That is, when the inner side surface is formed smoothly, the illumination light is irradiated to the illumination area by being constantly reflected according to the angle of the side light irradiated by the LED 200, so that the illumination light pattern of the illumination area is formed by the vertical cut- There is a high possibility that a circular shadow is formed and a donut-shaped illumination light is formed, so that the uniformity of the pattern is deteriorated and a color separation phenomenon occurs. Therefore, in order to form a plurality of reflection surfaces having different reflection angles with respect to the inner surface of the reflector 310, curved grooves 315 having a plurality of curvature counter-rotations are arranged horizontally and / or vertically Thereby improving the dispersion effect of the reflected light to remove the shadows at the center, thereby providing a uniform illumination light pattern and reducing the color separation phenomenon.

7 is a schematic diagram showing functions and embodiments of the vertical blocking unit 330 of the reflecting unit 310 in the medical illumination light source module according to the embodiment of the present invention. 7, the vertical blocking portion 330 formed on the upper portion of the LED 200 may be a disk shape (FIG. 7A) or a hemispherical shape (FIG. 7B) .

As shown in FIG. 7 (a), the disc-shaped vertical blocking portion 310 is spaced apart from the upper portion of the LED 200 through two 'A' shaped legs connected to the open bottom edge of the reflecting portion 310, The structure in which the LEDs 330 are formed cuts off the vertical light generated from the LED 200, thereby eliminating bright light spots at the center of the illumination region formed through the vertical light. The formation of the shadow due to the removal of bright light spots can be achieved by allowing the side light to be fused with the illumination light in the focal length region by the reflector of the reflection unit 310.

As shown in FIG. 7 (b), a downwardly convex hemispherical shape (see FIG. 7 (b)), which is spaced apart from the upper portion of the LED 200 through two 'A' shaped legs connected to the lower open edge of the reflector 310 The structure in which the vertical cut-off portion 335 is formed proposes a structure in which the vertical light generated from the LED 200 is reflected to the side through the convex surface coated with the reflective material and then forwardly irradiated by the reflector on the side.

The embodiment shown in FIG. 7 (b) differs from the embodiment of FIG. 7 (a) in that the vertical blocking portion 335 does not originally block the vertical light generated from the LED 200, And the reflected light L reflected by the side light of the LED 200 is emitted as well as the reflected light L reflected by the side surface of the LED 200 ) The reflected light L 'by the vertical light can be utilized as a light source again, thereby enhancing the illumination efficiency and increasing the brightness or illumination of the illumination area.

8 is a schematic diagram of illumination of irradiation light formed through the medical illumination light source module according to the embodiment of the present invention. 8 (b) is a plan view of a light source module according to an embodiment of the present invention, in which the reflective portion 310 is adjacent to the light source module, FIG. 5 is a schematic view showing focusing and superimposing areas in an illumination pattern formed between a pair of light sources and a light source spaced apart from each other.

8 (a), in the case of a single light source, although the illumination pattern is formed according to the shape of the light source and the reflector 300, the uniformity of the illumination light is somewhat deteriorated. However, It is clearly shown that no shadow is formed by the light. It can clearly be seen that a bright illumination pattern is formed in the central portion where the overlapping portion is formed by the effect of reflecting and dispersing the side light of the LED 200 by the reflector of the reflection portion 310.

As shown in FIG. 8 (b), in the case of the Asymmetric modules arranged in a plurality of light sources, two types can be analyzed. The upper diagram is a schematic diagram of the reflector 310 in the illuminating light source module according to the embodiment of the present invention, The illumination pattern formed by a pair of light source modules partially overlapping each other with the boundary portion formed therebetween, and the schematic view of the lower side represents an illumination pattern formed between the light source modules spaced apart.

It can be seen that a pair of light source modules having a boundary portion is formed with a larger number of overlapping regions, a focal length is shortened, a focal distance between the separated light source modules becomes long, and a portion overlapping in the focal distance region It can be seen that a lot is formed.

The illumination light source module according to the embodiment of the present invention has a wide focus area at a certain distance, more light of the light source is dispersed and overlapped to thereby enhance the uniformity of the illumination light pattern, There is a great merit that not only a small amount of high illumination light can be formed but also a lighting efficiency is increased and a manufacturing cost is reduced by a simple structure.

While the invention has been shown and described with respect to the specific embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. Anyone with it will know easily.

100: substrate, 200: LED, 300: reflector,
310: reflection part, 330: vertical blocking part

Claims (8)

Board;
A plurality of LEDs mounted on the substrate in a matrix form; And
A plurality of LEDs arranged in the center of the bottom of the LEDs to reflect the light emitted from the LEDs, and a plurality of LEDs extending from the bottom of the LEDs, And a vertical blocking unit connected to the upper portion of the LED to block vertical light generated by the LED and to be fixedly connected to two legs extending from a lower end of the reflective portion,
The reflector may include a plurality of curved grooves having a plurality of different radii of curvature in a horizontal and / or vertical direction and formed in parallel on the reflective surface for reflecting light, Wherein the light source module is formed in a pattern.
The method according to claim 1,
The reflector includes:
Wherein at least a pair of adjacent rims constitute an overlapping boundary portion, and the boundary portion has a concave shape.
delete delete 3. The method according to claim 1 or 2,
The vertical cut-
And blocks the vertical light generated in the LED in a disc shape.
3. The method according to claim 1 or 2,
The vertical cut-
Wherein the lower surface is a hemispherical convex surface, and the convex surface is coated with a reflective material that reflects light generated from the LED to the side.
The method according to claim 6,
The reflector includes:
A rectangular support plate,
And a plurality of bowl-shaped reflectors formed on the bottom of the support plate and recessed below the support plate.
8. The method of claim 7,
The reflector includes:
And three pairs of the reflection portions formed with the concave boundary portions are arranged in the lateral direction at regular intervals.

Images