KR20120016848A - Medical lighting apparatus - Google Patents

Medical lighting apparatus Download PDF

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Publication number
KR20120016848A
KR20120016848A KR1020100079332A KR20100079332A KR20120016848A KR 20120016848 A KR20120016848 A KR 20120016848A KR 1020100079332 A KR1020100079332 A KR 1020100079332A KR 20100079332 A KR20100079332 A KR 20100079332A KR 20120016848 A KR20120016848 A KR 20120016848A
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KR
South Korea
Prior art keywords
source module
light source
light
light emitting
reflector
Prior art date
Application number
KR1020100079332A
Other languages
Korean (ko)
Inventor
홍기태
Original Assignee
(주)에스디엠
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)에스디엠 filed Critical (주)에스디엠
Priority to KR1020100079332A priority Critical patent/KR20120016848A/en
Publication of KR20120016848A publication Critical patent/KR20120016848A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/02—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for adjustment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/503—Cooling arrangements characterised by the adaptation for cooling of specific components of light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/60—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/20—Lighting for medical use
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
    • F21Y2107/70—Light sources with three-dimensionally disposed light-generating elements on flexible or deformable supports or substrates, e.g. for changing the light source into a desired form
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

PURPOSE: A lighting device for medical treatment is provided to improve collection efficiency by focusing light emitted from a light emitting diode by using a light source module. CONSTITUTION: A light source module(110) is composed of a body portion, a lamp part(120), and a cap part(116). A plurality of light emitting diodes is installed in the lamp part. The cap part is located in the upper side of the body portion and covers hollow. A reflector(130) is connected to the light source module through a connecting rod. The reflector reflects light emitted from the light emitting diode to an extension direction of the light source module. An elevating portion is located in the upper side of the reflector. The elevating portion perpendicularly moves up and down light source module about the reflector.

Description

Medical Lighting Apparatus}

The present invention relates to a lighting device, and more particularly to a medical lighting device using a light emitting diode.

As is already known, the shadowless lamp is intended to illuminate the affected area with uniform brightness so that shadows by a surgeon such as a doctor or assistant performing surgery on the affected part of the patient on the operating table do not occur.

Figure 1 (a) and Figure 1 (b) is an external view showing an example of a conventional muyeongyeong lamp.

As shown in FIG. 1 (a), the conventional general lampless lamp has a configuration in which a plurality of light bulbs 12 are arranged on the surface of the light body 11, and the light emitted from each light bulb 12 has a different angle direction. By illuminating the affected area, the shadow generated by the light from one light bulb is canceled by the light from the other light bulb, thereby preventing the occurrence of shadow by the operator.

In addition, referring to FIG. 1 (b) showing another conventional lightless lamp, one or two light bulbs 22 are disposed in the light housing 21 as light sources, and the light from the light bulb 22 is collected. After the light beam was enlarged by the light beam, the enlarged light beam was refracted by the outer lens 24 provided on the front surface of the light housing 21, and light was emitted from the outer lens 24 in a diffused state to illuminate the affected part. .

But the lampless lamp of Figure 1 (a) is troublesome to maintain. There is a problem in that the power consumption for lighting the plurality of light bulbs 12 is large, and the lightless lamp of FIG. 1 (b) makes it difficult to uniformly inject light having an extended luminous flux to the outer lens 24, and the radial direction of the lightless lamp is difficult. And it is difficult to design the outer lens 24 for obtaining uniform light distribution characteristics in the circumferential direction.

In addition, halogen lamps or plasma lamps are used for the shadowless lamps. However, halogen lamps have a high calorific value, and when the patient is irradiated to the affected area for a long time, blood vessels expand and bleeding is increased. The operator has a problem that the work fatigue increases due to the local temperature rise, and there is a problem that it is not easy to adjust the color temperature and color rendering of the light necessary to perform the correct procedure. Likewise, plasma lamps have a problem of high cost and complicated structure.

The present invention has been made in view of the above point, using a light emitting diode (LED) is good energy conversion efficiency, easy to control the color temperature and color rendering of light, to provide a medical lighting device that can increase the endurance life. The purpose.

In addition, by using a shaded light source module to focus the light emitted from the light emitting diode to improve the light collecting efficiency, and to provide a medical lighting device with a high cooling efficiency using a water cooling method.

Medical lighting apparatus according to the present invention provided to achieve the above object is formed in the hollow core-shaped body portion, the lower end of the body portion is provided with a plurality of light emitting diodes installed, and the upper end of the body portion A light source module composed of a cap part covering a hollow; An elliptic hemispherical reflector inserted into the light source module through a central coupling hole and configured to reflect light emitted from the light emitting diode in an extension direction of the light source module; And an elevating portion provided above the reflector to move the light source module up and down with respect to the reflector by operating a gear.

Here, the shade of the light source module is provided with a flexible PCB on the outer surface, it is preferable that a plurality of light emitting diodes are arranged along the circumferential direction of the flexible PCB.

In addition, the body portion of the light source module is formed with a plurality of wire insertion holes in the longitudinal direction, it is preferable to supply power to the light emitting diode of the shade portion through the wire provided in the wire insertion hole.

In addition, the light source module is provided with a separate diaphragm in the hollow center to form a first flow path connected to an inflow pipe formed on one side of the cap part, and a second flow path connected to a discharge pipe formed on the other side of the cap part. It is preferable to cool by a cooling medium flowing through the flow path.

In particular, the lifting unit driving motor; A main gear operated by receiving power from the drive motor; A hollow cone plate-type auxiliary gear formed of a screw hole in which the body part of the light source module is inserted into and rotated in contact with the main gear; And a sliding guide part fixedly spaced apart from the upper side of the auxiliary gear by a predetermined distance and slidingly contacting the guide groove formed along the longitudinal direction of the light source module body part to support the light source module to vertically slide. It is preferable to include;

In addition, the body portion of the light source module is formed with a screw line on the outer peripheral surface, the screw hole and the screw hole of the auxiliary gear, it is preferable that the linear movement in the vertical direction during the operation of the lifting unit.

According to the medical lighting apparatus according to the present invention, the energy conversion efficiency is good by using a light emitting diode (LED), the color temperature and color rendering of the light can be easily controlled, and the durability life can be increased. In addition, the light emitted from the light emitting diodes may be focused by using a shaded light source module to provide a high light condensing efficiency, and a medical lighting apparatus having a high cooling efficiency may be provided using a water cooling method. In addition, there is an effect that the structure is simple and easy to design and manufacture.

1 (a) and 1 (b) is an external view showing an example of a conventional Muyeong lamp,
2 is an internal perspective view of a medical lighting apparatus according to an embodiment of the present invention,
3 is a cross-sectional view of FIG.
4 is a view illustrating a state in which light emitted from a light emitting diode of the medical lighting apparatus of FIG. 2 is projected through a reflector;
5 is an exploded perspective view of the inside of the medical lighting apparatus shown in FIG.
6 is an enlarged perspective view of the light source module of FIG. 2;
7 is a cross-sectional view of FIG.
8 is an enlarged perspective view illustrating the light source module and the lifting unit of FIG. 2;
9 and 10 are cross-sectional views illustrating the elevated state of FIG. 8.

The above objects, features and other advantages of the present invention will become more apparent by describing the preferred embodiments of the present invention in detail with reference to the accompanying drawings. Hereinafter, a medical lighting apparatus according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. For the purposes of this specification, like reference numerals in the drawings denote like parts unless otherwise indicated.

2 is an internal perspective view of a medical lighting apparatus according to an embodiment of the present invention, Figure 3 is a cross-sectional view of Figure 2, Figure 4 is a state in which light emitted from the light emitting diode of the medical lighting device of Figure 2 is projected through a reflector. 5 is an exploded perspective view of the inside of the medical lighting apparatus shown in FIG. 2, FIG. 6 is an enlarged perspective view of the light source module of FIG. 2, and FIG. 7 is a sectional view of FIG. 6.

2 to 7, the medical lighting apparatus according to an embodiment of the present invention includes a light source module 110, a reflector 130, and a lifting unit 140 for moving the light source module 110.

2 to 7, the light source module 110 is formed at the lower end of the hollow rod-shaped body portion 112 and the body portion 112 in which the hollow hole 114 is formed in the center, and a plurality of light emitting diodes 125 are formed. Installed caps 120, the body portion 112 is provided on the upper end is composed of a cap portion 116 to cover the hollow hole 114.

Body portion 112 of the light source module 110 is formed with a plurality of wire insertion holes 111 in the longitudinal direction, the wire (not shown) inserted into the wire insertion hole 111 is connected to the hat shade portion 120, The light emitting diodes 125 of the shader 120 are driven by receiving power from the outside by the wires. Body portion 112 of the light source module 110 is preferably formed of a metal material having good heat dissipation. In addition, the body portion 112 of the light source module 110 has a thread line 115 formed on its outer circumferential surface in order to interact with the elevating portion 140.

The shade 120 of the light source module 110 is provided with a flexible PCB on the outer surface thereof, and a plurality of light emitting diodes 125 are arranged along the circumferential direction of the flexible PCB.

The flexible PCB combines ductility characteristics with a conventional PCB to enable three-dimensional wiring, and is suitable for electronic products that are miniaturized. In the present invention, the role of wiring for supplying power and the light emitting diode 125 are mechanically controlled. It plays a role of fixing. A circuit pattern for transmitting power and control signals to the light emitting diodes 125 is formed in the flexible PC, and the circuit pattern may be formed on an upper surface, a lower surface, or both of the flexible PC, in the case of the flexible PC of the present invention. Since the hatch 120 is formed integrally with the thermocompression or vapor deposition method on the upper portion, it is preferable that a circuit pattern is formed only on one surface of the flexible PC.

It is also possible to use a PC for LED, which is a heat dissipation function unlike a general PC, and it requires a function to block the LED because it is accompanied by a lot of heat while emitting light, and thus a PC for a LED As the substrate, an aluminum heat sink of metal material is used. In other words, instead of heat-sensitive epoxy resins, aluminum is used as the heat sink, and white products can be used instead of green solder resists for energy efficiency.

 The light emitting diodes 125 apply to each of the light emitting diode chips mounted with a light emitting diode chip that emits light of different colors of red (R), green (G), blue (B), and yellow (Y). Lead pins are installed to drive independently. The lead pin of the light emitting diode is connected to the flexible PC to control the driving current of the light emitting diode chip.

The number and size of the light emitting diodes 125 arranged on the shade 120 of the light source module 110 may be selected in consideration of the shape of the product to be applied and the brightness required at the installation location. In addition, by applying a phosphor on the surface of the light emitting diode 125 it is possible to further improve the brightness.

Looking at Figure 7, the light source module 110 is provided with a separate plate 122 in the center of the hollow hole (114). The hollow hole 114 is separated on both sides around the diaphragm 122, and the one side space (hole) divided by the diaphragm 122 is a cap part 116 provided at the upper end of the body part 112 of the light source module 110. Is connected to the inlet pipe 117 formed on one side of), the other space (hole) divided by the diaphragm 122 is connected to the discharge pipe 118 formed on the other side of the cap portion 116. When the one side space (hole) connected to the inflow pipe 117 is called the first flow path 126, and the other side space (hole) connected to the discharge pipe 118 is called the second flow path 127, when a cooling medium is supplied from the outside, The cooling medium flows along the first flow path 126 of the light source module 110 through the inflow pipe 117 of the cap part 116 (A direction), and reaches the flow path 128 formed in the shade 120. After (B direction), it flows along the 2nd flow path 127 (C direction), and is discharged | emitted outside through the discharge pipe 118 of the cap part 116. FIG.

In order to prevent leakage to the outside during the inflow and outflow of the cooling medium, the inner surface of the cap portion 116 and the bottom surface of the shade portion 120 of the light source module 110 are treated with a silicon packing 119. Cooling medium generally means water.

Referring to Figures 3 and 4, the reflector 130 is formed in the shape of an ellipsoidal hemispherical lampshade, one side is opened, a coupling hole for inserting the light source module 110 in the center is formed. The inner reflective surface of the reflector 130 reflects the light emitted from the plurality of light emitting diodes 125 provided in the shade portion 120 of the light source module 110 in the extending direction of the light source module 110. The reflective surface may be formed smoothly, or a plurality of divided band-shaped reflective zones may be formed in a stepped cross-sectional shape. It is preferable that the inclination of the reflecting surface is formed at 45 ° to 50 ° with respect to the central axis direction of the reflector 130.

The reflector 130 may be formed of aluminum having high reflectance and good heat dissipation. In addition, it is a matter of course that the coating of the inner surface of the reflector 130 with high reflectivity nickel, silver, and the like can be applied. In this case, it is preferable that the inner surface of the reflector 130 is applied with a low surface roughness by using a polishing machine.

In addition, a condenser lens or flat glass may be additionally provided to collect light reflected from the reflective surface of the reflector 130 toward the front.

The reflector 130 having the structure as described above has a good direction change efficiency to the front, so that the area of the reflecting surface does not have to be large, thereby making the structure slim.

8 is an enlarged perspective view illustrating the light source module 110 and the lifting unit 140 of FIG. 2, and FIGS. 9 and 10 are cross-sectional views illustrating a lifting state of FIG. 8.

Referring to Figure 5 or Figures 8 to 10, looking at the lifting unit 140 installed in the medical lighting apparatus according to an embodiment of the present invention in detail as follows.

Lifting unit 140 is provided on the top of the reflector 130 to operate the gear to raise and lower the light source module 110 vertically along the central axis of the reflector 130, due to the operation of the lifting unit 140 The beam size of the module 110 is adjusted.

The lifting unit 140 is driven by the driving motor 141, the driving motor 141, the main gear 143 for rotational operation, the auxiliary gear 144 and the sliding guide for rotational operation in contact with the main gear 143. Member 146.

The drive motor 141 is provided at one upper side of the reflector 130 to supply power to the main gear 143 connected to the lower end of the drive motor 141. The driving motor 141 is driven by applying power, and the power supplied to the driving motor 141 may use a general power source and a rechargeable battery supplied to a home or a business place.

The hollow park plate-shaped main gear 143 is installed at the front end of the motor shaft 142 of the driving motor 141, and the auxiliary auxiliary gear 144 made of the hollow park plate-like core gear 143 is the main gear 143. It is rotatably installed in a state of being engaged to one side of the. As a gear applied to the present invention, a parallel shaft gear having parallel center axes of gears engaged with each other, a helical gear, a rack gear, and the like can be used.

The auxiliary gear 144 is formed with a screw hole 145 so that the body portion 112 of the light source module 110 is inserted and moved. Here, the screw thread 115 formed on the outer circumferential surface of the body 112 of the light source module 110 and the screw hole 145 of the auxiliary gear 144 are screwed, and the light source module 110 when the lifting unit 140 is operated. Is moved vertically.

The sliding guide member 146 is fixed to the upper side of the auxiliary gear 144 by a predetermined interval, and the rotation of the body portion 112 so that the body 112 of the light source module 110 can be vertically slid. The sliding guide part 149 is formed to protrude in the sliding hole 148 in the center so that the light source module 110 slides vertically.

In detail, when the main gear 143 and the auxiliary gear 144 are operated, the thread line 115 formed on the body 112 of the light source module 110 and the screw hole 145 of the auxiliary gear 144 may be used. The screw coupled to the light source module 110 is moved, the guide groove 113 formed along the longitudinal direction of the body portion 112 of the light source module 110 is the sliding guide portion 149 of the sliding guide member 146. Is in contact with sliding. At this time, since the auxiliary gear 144 is fixed, only the body 112 of the light source module 110 is vertically moved, and the sliding guide part 149 supports the light source module 110 to perform a linear movement in the vertical direction. Function.

Meanwhile, a separate housing may be further coupled to the outside of the reflector 130, and the structure may be configured to actually use the medical lighting device to which the housing is coupled. In addition, a structure in which a plurality of medical lighting devices according to the present invention are installed so as to be spaced apart from each other may be applied.

According to the medical lighting apparatus according to the present invention, the energy conversion efficiency is good by using a light emitting diode (LED), the color temperature and color rendering of the light can be easily controlled, and the durability life can be increased. In addition, the light emitted from the light emitting diodes may be focused by using a shaded light source module to provide a high light condensing efficiency, and a medical lighting apparatus having a high cooling efficiency may be provided using a water cooling method. In addition, there is an effect that the structure is simple and easy to design and manufacture.

While preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described specific embodiments. That is, those skilled in the art to which the present invention pertains can make many changes and modifications to the present invention without departing from the spirit and scope of the appended claims, and all such appropriate changes and modifications are possible. Equivalents should be considered to be within the scope of the present invention.

110: light source module 111: wire insertion hole
112: body 113: guide groove
114: hollow hole 115: screw thread
116: cap portion 117: inlet pipe
118: discharge pipe 119: silicone packing
120: hat shade 122: plate
125: light emitting diode 126: first flow path
127: second euro 130: reflector
140: lifting portion 141: drive motor
142: motor shaft 143: main gear
144: auxiliary gear 145: screw hole
146: sliding guide member 148: sliding hole
149: sliding guide part

Claims (6)

A light source module including a hollow core-shaped body portion, a bottom portion formed at a lower end of the body portion, and a hat shade portion in which a plurality of light emitting diodes are installed, and a cap portion provided at an upper end of the body portion to cover the hollow;
An elliptic hemispherical reflector inserted into the light source module through a central coupling hole and configured to reflect light emitted from the light emitting diode in an extension direction of the light source module; And,
And a lifting unit provided above the reflector to move the light source module vertically up and down with respect to the reflector by operating a gear. According to claim 1, wherein the shade of the light source module
A flexible PCB is provided on an outer surface, and a plurality of light emitting diodes are arranged along the circumferential direction of the flexible PCB. According to claim 1 or 2, wherein the body portion of the light source module
A plurality of wire insertion holes are formed along the longitudinal direction, and the medical lighting device, characterized in that to supply power to the light emitting diode of the hat shade portion through the wire provided in the wire insertion hole. The method of claim 1, wherein the light source module
A separate diaphragm is provided in the center of the hollow to form a first flow path connected to an inflow pipe formed on one side of the cap part, and a second flow path connected to a discharge pipe formed on the other side of the cap part, and a cooling medium flowing through the first and second flow paths. Medical lighting apparatus characterized in that the cooling by. According to claim 1, wherein the lifting unit
Drive motor;
A main gear operated by receiving power from the drive motor;
A hollow cone plate-type auxiliary gear formed of a screw hole in which the body part of the light source module is inserted into and rotated in contact with the main gear; And,
A sliding guide member fixed to the upper side of the auxiliary gear at a predetermined interval and slidingly contacting the guide groove formed along the longitudinal direction of the light source module body part to support the light source module to vertically slide; Medical lighting apparatus comprising a. 6. The method according to claim 1 or 5,
The body portion of the light source module is formed with a screw line on the outer circumference, the screw hole and the screw hole of the auxiliary gear, medical lighting device, characterized in that the linear movement in the vertical direction during the operation of the elevating unit.
KR1020100079332A 2010-08-17 2010-08-17 Medical lighting apparatus KR20120016848A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100079332A KR20120016848A (en) 2010-08-17 2010-08-17 Medical lighting apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100079332A KR20120016848A (en) 2010-08-17 2010-08-17 Medical lighting apparatus

Publications (1)

Publication Number Publication Date
KR20120016848A true KR20120016848A (en) 2012-02-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020100079332A KR20120016848A (en) 2010-08-17 2010-08-17 Medical lighting apparatus

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115854306A (en) * 2022-11-23 2023-03-28 深圳技术大学 Embedded movable lighting lamp for jewelry finish machining

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115854306A (en) * 2022-11-23 2023-03-28 深圳技术大学 Embedded movable lighting lamp for jewelry finish machining

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