KR101320605B1 - Medical lighting device - Google Patents

Abstract

PURPOSE: A lighting device for medical treatment can control the focusing distance with a simple lever operation, thereby efficiently lighting the device according to medical operations and surroundings. CONSTITUTION: A plurality of LED modules (100) are symmetrically arranged along circular lines with different radius. The LED module comprises a printed circuit board (110), an LED (120), a first divergent lens (130) and a reflector (140). The reflector surrounds the circumference of the first divergent lands and LED. A board lens (200) includes a plurality of focusing lenses (210) arranged on the LED modules and a second divergent lens. A lever is arranged at the center of the board lens and rotates the same.

Description

Medical lighting device

The present invention relates to a medical lighting device, and to a medical lighting device that can easily adjust the focusing distance of the illumination light, and can efficiently perform appropriate lighting according to various environments and procedures or surgery.

LED light sources used as light sources for dental or medical lighting have several properties that make them desirable as light sources for dental applications. First, the light emitter is compact. As a result, the proximal end of the dental lighting device may be very close to the emitter and may surround the light source. Secondly, LEDs emit very little heat forward (although no heat is emitted backwards). This makes it possible not only to use transparent plastics for the construction of dental lighting systems, but also to use single or multiple glass elements. Molded plastics and glass allow for more complex shapes, providing greater optical design freedom. Finally, LEDs are efficient, but do not provide as much total light as conventional light sources. For this reason, the light guide portion needs to be very efficient.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the shape of the conventional dental LED lighting fixture (FIG. 1 (a)), and the lens combination schematic diagram of a light source. As shown in FIG. 1, a conventional medical lighting device uses a combination of an LED lamp and an optical lens to improve brightness and clarity of light illuminated on a surgical site, and provides light of an LED light source and a light source that provide light. It comprises a lens for adjusting, a rotating unit for rotating the light irradiation unit, and the like. However, the combination of such lenses is not only expensive, but also has to adjust the distance of the lens for each LED module, there is a problem that the structure is very complicated.

Figure 2 is a schematic diagram showing the lighting principle of a conventional LED lighting fixture. As shown in Fig. 2, the hemispherical shape housing is composed of a reflector which overlaps a plurality of LEDs in the center and is arranged in an illumination direction and reflects the light emitted from the LEDs on the side part. More specifically, by using a plurality of light emitting diodes, the structure can be variously adjusted color rendering, illuminance and color temperature, reflector, light source module having a stepped cross-section to reflect the light source and the incident light to the array light source module And an elevating lower portion for elevating and lowering vertically. However, the conventional LED luminaire shown in Figure 2 has the disadvantage that the focus cannot be changed.

3 is a view showing a focusing structure principle of a conventional LED lighting fixture. As shown in Fig. 3, the light path of the conventional luminaire is based on a curved housing having a radius equal to the distance to the irradiation point. In this case, since the optical module and are to be placed separately, the manufacturing step is not easy, and because of the characteristics of the curved surface, there is a problem in that the overall thickness becomes thick.

As such, the conventional luminaire has a disadvantage in that the lens array for illumination is very complicated or there is no adjusting mechanism for focusing at a specific distance, and the unit structure is complicated and the unit price is very high.

Utility Model Registration 20-0463715 (A)

An object of the present invention to solve the above problems is to provide a lighting device that can easily adjust the focusing distance of the illumination light, and can efficiently perform the appropriate illumination according to various environments and procedures or surgery.

A feature of the present invention for solving the above problems is a printed circuit board, an LED mounted on the printed circuit board, a first diffuser lens positioned above the LED, and the side circumference of the LED and the first diffused lens A plurality of LED modules wrapped and symmetrically disposed at the centers along circular lines having different radii, the reflectors configured to reflect light incident from the LEDs having a vertically larger diameter; Located on top of the plurality of LED modules, a plurality of focus lenses and a plurality of circular grooves are formed on the top surface is formed in the radial direction at intervals from the center, a plurality of circular grooves, the lower line on the circular line of the LED module A plate lens having a plurality of second diffusion lenses disposed in the plate lens; And a lever extending in the center of the plate lens and rotating the plate lens.

Preferably, the first diffusion lens has a dome-shaped structure, and the second diffusion lens is disposed on a circular line line having the same number and the same number as the LED module, and the LED module is formed at the center thereof. Three LED modules are arranged at the same angle in the center on the circular line of one radius, and each of the two LED modules is arranged at the same angle as the three LED modules on the circular line of the second radius larger than the first radius. It is preferable to arrange nine LED modules at equal intervals in a circular line of a third radius larger than two radii.

In addition, preferably, in the plate lens, the length of the inclined structure may be shortened in the radial direction from the center, and the inclination angle of the inclined structure may be increased in the radial direction from the center.

In addition, it is preferable that each of the circular second diffusion lenses has a larger area than the LED module.

The present invention can easily adjust the focusing distance of the illumination light by simply rotating the lever, it is possible to provide an illumination device that can efficiently perform the appropriate illumination according to various environments and procedures or surgery.

In addition, it is possible to efficiently illuminate a variety of colors and a variety of LED light by a combination of a simple configuration, not only to implement a high-quality illumination light, but also has a great advantage that can lower the unit price because of the simple configuration.

1 is a view showing the shape of the conventional dental LED lighting fixture (Fig. 1 (a)), the lens combination of the light source,
2 is a schematic diagram showing the lighting principle of a conventional LED lighting fixture,
3 is a view showing a focusing structure principle of a conventional LED lighting fixture,
4 is a view showing the configuration of a medical lighting apparatus according to an embodiment of the present invention,
5 is a view showing the structure of a plate lens in the configuration of a medical lighting apparatus according to an embodiment of the present invention,
6 is a schematic diagram showing a lens structure and a lighting principle of a medical lighting apparatus according to an embodiment of the present invention,
7 is a schematic diagram showing the structure and illumination principle of the second diffusion lens in the plate lens of the medical lighting apparatus according to an embodiment of the present invention,
8 is a schematic diagram showing the rotation of the plate lens of the medical lighting apparatus according to an embodiment of the present invention,
9 is a photograph showing the result of the illumination light focused by the plate lens rotation operation of the medical lighting apparatus according to an 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. In addition, parts denoted by the same reference numerals throughout the specification represent the same components.

The expression "and / or" is used herein to mean including at least one of the components 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 of the present invention will be described in detail with reference to the drawings.

4 is a view showing the configuration of a medical lighting apparatus according to an embodiment of the present invention. Fig. 4A shows the arrangement of the LED module, and Fig. 4B shows the structure of the LED module and the shape of the plate lens.

As shown in FIG. 4, the medical lighting device according to the embodiment of the present invention includes a printed circuit board, an LED 120 mounted on the printed circuit board 110, and a second light source disposed on the LED 120. 1 diffuser lens 130 and a reflector 140 surrounding the side circumferences of the LED and the first diffuser lens 130 and reflecting light incident from the LED 120 having a structure of increasing diameter in a vertically upward direction. To be, a plurality of LED modules 100 are arranged symmetrically in the center along the circular line with different radii; Located on the plurality of LED modules 100, the focus lens 210, the upper surface is formed in the radial direction from the center in the radial direction at intervals, and a plurality of circular grooves are formed, the LED on the lower surface A plate lens 200 provided with a plurality of second diffusion lenses 230 disposed on a line line of the module; And a lever 300 extending in the center of the plate lens 200 and configured to adjust a focus for rotating the plate lens 200.

As described above, the embodiment of the present invention is the LED module 100 disposed in a plurality of circular lines at the center, the plate lens 200 and the diffusion lens and the focus lens 210 are combined on the LED module 100 and the Consists of a lever 300 that can rotate the plate lens 200, to improve the lighting efficiency of the light generated from the LED module 100, and to change the focus to a specific distance, easy according to a variety of environments and procedures The present invention proposes a medical lighting apparatus capable of focusing illumination.

The LED module 100 includes a printed circuit board 110, a LED mounted on the printed circuit board 110, a first diffusing lens 130 for diffusing light emitted from the LED, and the light emission on a circular base plate. The plurality of LED modules 100 composed of the reflector 140 reflecting the light is arranged in a symmetrical arrangement at the center in a circular line having a different radius from the center of the base plate.

Here, the structure of the LED module 100 is, as shown in Figure 4 (b), the light emitted from the LED is diffused by the first diffusion lens 130 of the dome-shaped structure located above the LED, the diffused light Among the light toward the side portion is reflected by the reflector 140 of the structure inclined back to the side shape of the bowl is illuminated to the front. And, as shown in Figure 4 (a), the arrangement structure of the LED module 100 is arranged symmetrically in the center along the circular lines of different radii from the center of the circular base plate, to achieve a uniform illumination light And it is possible to implement a stable illumination light even in the change of rotation.

The arrangement is preferably symmetrical along circular lines of different radii at the center. This is to increase the uniformity of the illumination light, and as shown in FIG. 4A, three LEDs are symmetrically disposed on the circular line of the first radius, and the circular lines of the second radius larger than the first radius are symmetrically disposed. Arrangement, but it is possible to symmetrically arrange two LEDs on the line line connecting the three LED modules from the center, nine LED modules 100 in a circular line of a third radius larger than the second radius It is also possible to arrange at equal intervals. In addition, of course, if the arrangement for the efficiency and uniformity of the lighting is possible.

And, as shown in Figure 4 (b), the plate lens 200 is installed on the LED module 100, the plate lens 200 is formed in the top surface is formed in the radial direction at intervals from the center at intervals. The focus lens 210 and a plurality of circular grooves are formed, and the lower surface includes a second diffusion lens 230 disposed at the same position as the LED module 100. Here, the inclined structure is a structure in which the light reflected by the reflector 140 is focused on the object, and the second diffusion lens 230 is configured to diffuse the light focused by the inclined structure again at the position of the LED module 100. We propose a structure that can focus on distance.

5 is a view showing the structure of the plate lens 200 of the configuration of the medical lighting apparatus according to the embodiment of the present invention. As shown in FIG. 5, the plate lens 200 proposes a structure capable of implementing selective and efficient lighting in a medical procedure by diffusing and focusing light generated from the LED module 100.

First, looking at the inclined structure that performs the focusing function in the plate lens 200, Figure 5 (a) shows a side view of the plate lens 200 is formed with an inclined structure, Figure 5 (b) shows a plan view. As shown in (a) of FIG. 5, the inclined structure is formed in a plurality of spaced intervals in the radial direction from the top surface, which is the light reflected from the reflector 140 of the LED module 100 is switched back to the illumination direction To perform a focusing function. That is, the LED light reflected by the reflector 140 in the illumination direction is switched by the inclined angle.

In addition, the length of each of the plurality of inclined structures in the plate lens 200 may be shorter from the center to the radial direction, and the inclination angle of the inclined structure is preferably increased from the center to the radial direction. Since the incidence angle reflected from the reflector 140 and incident to the inclined structure of the plate lens 200 increases as the distance from the center increases, the inclined angle of the inclined structure must be large in the radial direction, and the length must also be short in the illumination direction. This is because the light generated by the LED module 100 can be switched by focusing.

In addition, as shown in FIG. 5C, a plurality of second diffusion lenses 230 having a plurality of grooves formed in a circle shape identical to that of the LED module 100 is formed on the lower surface of the plate lens 200. At the center, a lever 300 capable of rotating the plate lens 200 is installed. In this structure, the plate lens 200 is rotated by the lever 300, and the second diffusion lens 230 is placed at the same position on the LED module 100 as the plate lens 200 rotates. It becomes possible.

When the plate lens 200 is rotated by the operation of the lever 300 and the position of the first diffusion lens coincides with the upper part of the LED module 100, the LED light is diffused again by the concave groove, which does not coincide. More diffused illumination light is produced than in the case, allowing a longer distance to be focused. That is, the focusing distance can be easily selected by the rotation operation of the plate lens 200.

6 is a schematic diagram showing a lens structure and a lighting principle of a medical lighting apparatus according to an embodiment of the present invention. FIG. 6A is a diagram illustrating an optical system of an LED module including a first diffusing lens on a printed circuit board, and FIG. 6B is a schematic diagram showing a structure of a focus lens and an illumination principle in a plate lens.

In the embodiment of the present invention, it is possible to focus the irradiation surface by introducing a plate lens optical system, and the structure of the central axis of each optical module is finally matched to the irradiation surface by varying the shape of the portion near and far from the center. Indicates.

As shown in (a) of FIG. 6, the LDE module is symmetrically disposed at the center on one circular PCB substrate to achieve uniformity of illumination, and the LED module is an optical system including an LED, a first diffusion lens, and a reflector. This is a structure to increase the lighting efficiency. And, as shown in Figure 6 (b), in the embodiment of the present invention by forming a plate lens having a focal lens 210 formed at regular intervals in a circular band structure having a tilt angle in the radial direction from the center, An optical structure in which light emitted from two LED modules 100 can be easily focused at a specific distance is proposed.

7 is a schematic diagram showing the structure and illumination principle of the second diffusion lens in the plate lens of the medical lighting apparatus according to the embodiment of the present invention. As shown in FIG. 7, the structure of the second diffuser lens 230 is formed on the rear surface of the plate lens to propose a structure in which the irradiation pattern can be enlarged. By allowing the expansion and adjustment of the pattern by the rotation of the lens, there is an advantage that can be easily adjusted without the need for a separate component compared to the conventional mechanical adjustment.

That is, by arranging a plurality of second diffusion lenses 230 having a plurality of groove structures on a circular line line in which the LED module is disposed on the bottom surface of the plate lens positioned on the plurality of LED modules disposed on the printed circuit board, Since the number of the second diffused lenses 230 coinciding with the LED module is changed by the rotation of the lever provided in the center of the plate lens, the degree of diffusion of the illumination light by the second diffused lens is changed, thereby selectively spreading or You can adjust the pattern. The number and positions of the second diffusion lenses 230 may be appropriately selected as necessary, and the positions and numbers of the LED modules may be equally formed.

8 is a schematic diagram showing the rotation operation of the plate lens 200, Figure 9 is a photograph showing the result of the illumination light focused by the rotation operation of the plate lens 200. 8 and 9, the basic positions of the LED module 100 and the second diffusion lens 230 are not the same, and the LED light generated by the LED module 100 is the plate lens 200. Most of the focus lens 210 (tilt structure) of the () passes through, so the focusing area is narrow.

However, when the lever 300 is rotated about 60 degrees, the LED module 100 and the second diffusion lens 230 are placed at the same position, and the light generated by the LED module 100 is diffused again, thereby increasing the focal length. Will be longer. As shown in FIG. 9, it can be seen that the illumination light is further diffused when rotated by 60 degrees.

For example, in the dental lighting device, even when the illumination light is irradiated to the oral cavity, the small size of the oral cavity does not allow much light to flow into the oral cavity. Although low, using the lighting device according to an embodiment of the present invention, it is possible to easily adjust the focusing can perform a good lighting function for medical procedures or surgery.

Thus, the embodiment of the present invention can easily adjust the focusing distance of the illumination light only by the simple rotation of the lever 300 can provide an illumination device that can efficiently perform the appropriate illumination according to various environments and procedures or surgery. Will be. In addition, a combination of the first diffusion lens 130, the reflector 140, the focus lens 210 of the plate lens 200, and the second diffusion lens 230 may efficiently illuminate LED lights having various colors and various arrangements. It is possible to implement a high-quality illumination light, and there is an advantage that the configuration can be simple to lower the unit cost.

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: LED module, 110: printed circuit board, 120: LED, 130: first diffusion lens,
140: a collector, 200: a plate lens, 210: a focus lens, 230: a second diffusion lens,
300: lever

Claims (7)

One printed circuit board;
LEDs mounted on the printed circuit board, a first diffusion lens positioned above the LEDs, and light incident from the LEDs having a diameter vertically upwardly wrapped around side surfaces of the LEDs and the first diffusion lenses. Comprising a reflector for reflecting, a plurality of LED modules are arranged symmetrically in the center along a circular line having a different radius;
Located on top of the plurality of LED modules, a plurality of focus lenses and a plurality of circular grooves are formed on the top surface is formed in the radial direction at intervals from the center, a plurality of circular grooves, the lower line on the circular line of the LED module A plate lens having a plurality of second diffusion lenses disposed in the plate lens; And
And a lever extending and installed in the center of the plate lens, the lever rotating the plate lens.
The method of claim 1,
The first diffusion lens is a medical illumination device, characterized in that the domed structure.
3. The method of claim 2,
The second diffusing lens is a medical lighting device, characterized in that arranged on the line line of the same number and the same position as the LED module.
The method of claim 1,
The LED module,
Three LED modules are arranged in a circular line of a first radius in the center at the same angle in the center,
Two each at the same angle as the three LED modules in a circular line of a second radius larger than the first radius,
Medical lighting apparatus characterized in that the nine LED modules are arranged at equal intervals in a circular line of a third radius larger than the second radius.
The method of claim 1,
In the plate lens,
Medical lighting apparatus, characterized in that the length of the inclined structure is shortened in the radial direction from the center.
The method of claim 5,
In the plate lens,
Medical inclination device, characterized in that the inclination angle of the inclined structure is increased in the radial direction from the center.
The method of claim 1,
And each of the circular second diffusion lenses has a larger area than the LED module.

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