TWI579495B - Surgical light and LED lighting module thereof - Google Patents

Description

Surgical lamp and its LED light source module

The present invention relates to a surgical light, and more particularly to a surgical light comprising an LED light source module.

Please refer to Taiwan Patent Application No. 090202724, "Improved Structure of Surgical Lamp Shadowless Mirror", an improved structure of a surgical lamp shadowless mirror, which is mainly composed of a plurality of three-dimensional arc-shaped mirrors. The center line is formed by a 360-degree horizontal connection. Therefore, any cross-section of the shadowless mirror orthogonal to the center line is a regular polygon (but the edge of the polygon can be a curve), but includes the center thereof. The longitudinal section of the line orthogonal to any three-dimensional arc surface is an arc symmetrical to the center line of the mirror; the arc of the single side is a continuous arc defined by two to five high-order polynomial equations, and the mirror uses different optical paths Reflects light onto the illumination plane.

The surgical lamp of the above-mentioned prior art uses a halogen lamp as a light source. Since the light emitted by the halogen lamp is full-circumferential and the illumination angle is large, please refer to the first figure of the prior art, and the design of the reflector of the prior art. Deep and wide, the interior uses a large number of mirrors to make full use of the light emitted by the halogen lamp to form a shadowless spot in the working area, but because the energy consumed by the halogen lamp is large, and the energy consumed is mostly released in the form of heat, The heat generated by the surgical lamp often causes discomfort to the surgeon and may cause the temperature of the patient's wound to rise and affect the treatment. Therefore, how to replace the halogen lamp with the low-energy LED lamp as the light source of the surgical lamp is the development goal of the current surgical lamp. The light emitted by the LED lamp is only half-circumferential and has strong directivity, and only has an illumination angle of about 120 degrees. Therefore, if the LED is used instead of the halogen lamp and used in a conventional mirror, the shape cannot be formed into a circular shape. The spot light and the illuminance are also low, so that the surgical lamps currently using the LED light source are mostly designed to redesign the mirrors suitable for the LED light source, but for the hospital, it is extremely expensive to replace all the surgical lights in the hospital with the LED surgical lights. The cost and the large number of discarded reflectors, in addition to causing environmental burdens, also reduce the willingness of hospitals to replace surgical lights.

The main purpose of the present invention is to reflect the light emitted by the LED light source by the concentrating cover, and the reflected light is focused by the concentrating lens and then irradiated to the reflecting member, and the reflecting member reflects the light to the concentrating cover, and finally condenses the light. The concentrating light forms a high-illumination shadowless spot, and the LED light source module can be applied to a conventional concentrating hood.

The LED light source module of the surgical lamp of the present invention comprises an LED illumination source, a concentrating hood, a concentrating lens and a reflecting component, wherein the LED illuminating source emits a light, and the concentrating hood surrounds the LED illuminating source And the light emitted by the LED illumination source is reflected by an inner surface of the concentrating cover, the concentrating lens is disposed at an opening of the concentrating cover, and the light reflected by the inner surface of the concentrating cover passes through Through the concentrating lens and being focused by the concentrating lens, the reflecting member and the concentrating lens have a spacing, the light is focused by the concentrating lens to the reflecting member, and the reflecting member is configured to reflect the condensed light The light focused by the lens.

The invention can directly apply the traditional LED lamp to the traditional reflector by the structure of the LED light source module, which can increase the hospital's willingness to completely replace the LED surgical lamp, and can also reduce the result of replacing the LED surgical lamp. Environmental burden.

1 is a perspective view of a surgical light 10 according to an embodiment of the present invention. The surgical light 10 includes a reflector 20 and an LED light source module 100. The reflector 20 has a reflective portion 21 and a cavity. The reflector 22 is disposed in the accommodating space 22, and the reflector 20 is reflective by a conventional halogen lamp. The cover portion has a plurality of mirrors for reflecting and focusing the light.

Referring to FIGS. 2 and 3 , the LED light source module 100 includes an LED illumination source 110 , a concentrating cover 120 , a concentrating lens 130 , a reflector 140 , a fixed disk 150 , and a mounting bracket 160 . 2 and 3, the fixing plate 150 is coupled to the reflector 20 and located in the accommodating space 22. In the embodiment, the fixing plate 150 is coupled to the reflector 20 by screws or other suitable coupling members. For the combination, please refer to the figures 2, 3 and 4, the fixing plate 150 has a mounting surface 151 and a bonding surface 152 opposite to the mounting surface 151. The bonding surface 152 faces the reflector 20, wherein the LED illumination source 110 The concentrating cover 120 and the fixing base 160 are coupled to the mounting surface 151 of the fixing plate 150. The concentrating cover 120 surrounds the LED illuminating source 110. In this embodiment, the LED illuminating source 110, the concentrating light The cover 120 and the fixing base 160 are assembled to the fixing plate 150 by screws or other suitable coupling members. The LED illumination source 110 is a wafer array composed of a plurality of LED chips, and the collecting cover 120 and the fixing base 160 are high. Made of molecular material, in this embodiment made of ABS resin, but the invention is not limited thereto, wherein Poly mask 120 has an inner surface 121 and an opening 122, a metal plating layer on the inner surface 121 to reflect light.

Referring to FIGS. 3 and 4 , the fixing base 160 has a ring wall 161 surrounding the concentrating cover 120 , wherein the ring wall 161 has a mounting portion 161 a , and the collecting lens 130 is mounted on the ring wall 161 . The mounting portion 161a is disposed in the opening 122 of the concentrating cover 120. In the embodiment, the condensing lens 130 is made of transparent acryl to pass light and focus. The reflecting member 140 and the collecting lens 130 have a spacing D. In the embodiment, the reflecting member 140 is made of ABS resin, and the surface of the reflecting member 140 is plated with a metal layer to reflect light.

Referring to FIGS. 2 and 3 , the LED illumination source 110 is configured to emit a light, but since the LED illumination source 110 is a semi-circumferential light, part of the light emitted by the LED illumination source 110 is irradiated to the collection cover 120. The inner surface 121 of the concentrating cover 120 is plated with a metal layer, so that part of the light emitted by the LED illuminating source 110 is reflected by the inner surface 121 of the concentrating cover 120 to the collecting lens. 130, to make full use of the light emitted by the LED light source 110. A part of the light emitted by the LED light source 110 is directly irradiated to the collecting lens 130. In order to make the light of different angles emitted by the LED light source 110 reflect to the collecting lens 130, please refer to FIG. 5 . Preferably, the inner surface 121 of the collecting mask 120 has a first a surface 121a and a second surface 121b connected to the first surface 121a. The first surface 121a is located between the LED light source 110 and the second surface 121b. The first surface 121a and the second surface 121b have a surface between the first surface 121a and the second surface 121b. An angle θ1, the angle θ1 is between 90 degrees and 180 degrees. In the embodiment, the angle θ1 is 173 degrees to optimize the reflection effect, and further, due to the LED light source 110 The directionality of the light is strong. In order to avoid the obvious bright spot on the spot formed, please refer to FIG. 6 . Preferably, the axial section of the concentrating cover 120 is a polygon. In this embodiment, the concentrating light is concentrated. The axial cross-section of the cover 120 is a hexagon, or in other embodiments, may be a polygonal shape of other shapes.

Referring to FIGS. 2 and 3, the light reflected by the inner surface 121 of the concentrating mask 120 or the light emitted by the LED illuminating source 110 passes through the concentrating lens 130 and is focused by the collecting lens 130. Referring to FIG. 3, in order to reflect the inner surface 121 of the concentrating cover 120 or the light emitted by the LED illuminating source 110, the illuminating lens 130 has a first curved surface 131 and a second curved surface 132, the first curved surface 131 faces the LED illumination source 110, and the second curved surface 132 faces the reflective member 140. The curvature of the first curved surface 131 is different from the curvature of the second curved surface 132. The curvature of the first curved surface 131 of the condensing lens 130 is greater than the curvature of the second curved surface 132. In this embodiment, the radius of curvature of the first curved surface 131 is 40 mm, and the radius of curvature of the second curved surface 132 It is 50 mm.

Referring to FIGS. 2 and 3, the light of the LED light source 110 is focused by the collecting lens 130 to the reflecting member 140. The reflecting member 140 is configured to reflect the light focused by the collecting lens 130 to the reflector. Referring to FIG. 3, preferably, the reflector 140 is a cone having a vertex angle θ2 between 30 degrees and 178 degrees, and The distance D between the reflector 140 and the collecting lens 130 is between 0.1 cm and 135 cm, so that the light focused by the collecting lens 130 can be uniformly reflected to the reflector 20. The reflecting portion 21 is further reflected by the reflecting portion 21 to a working surface (not shown) to form a circular spot having no shadow. In the present embodiment, the apex angle θ2 is 112.62 degrees, and the pitch D is 3.75 cm.

Referring to FIGS. 2, 3 and 4, the LED light source module 100 further includes a mounting bracket 170 and a handle 180. The mounting bracket 170 has a first end 171 and a second end 172. The first end 171 is coupled to the first end 171. The mounting surface 151 of the mounting plate 150 is coupled to the second end 172 of the mounting bracket 170 to fix the distance between the reflecting member 140 and the collecting lens 130. The handle 180 For the doctor to hold, to adjust the irradiation position of the surgical lamp 10, in addition, the surgical lamp 10 can be provided with electronic components (not shown) connected to the LED illumination source 110 to control the surgical lamp 10 The brightness of the light is either turned on or off.

By adopting the structure of the LED light source module 100, the conventional LED lamp can be directly applied to the traditional reflector, which can increase the hospital's willingness to completely replace the LED surgical lamp, and can also reduce the LED surgical lamp replacement. Environmental burden.

The scope of the present invention is defined by the scope of the appended claims, and any changes and modifications made by those skilled in the art without departing from the spirit and scope of the invention are within the scope of the present invention. .

10‧‧‧Surgical light
20‧‧‧Reflector
21‧‧‧Reflection Department
22‧‧‧ accommodating space
100‧‧‧LED light source module
110‧‧‧LED light source
120‧‧‧ concentrator
121‧‧‧ inner surface
121a‧‧‧ first surface
121b‧‧‧second surface
122‧‧‧ openings
130‧‧‧ Concentrating lens
131‧‧‧First surface
132‧‧‧Second surface
140‧‧‧reflector
150‧‧‧ fixed disk
151‧‧‧Installation surface
152‧‧‧ joint surface
160‧‧‧ fixed seat
161‧‧‧ Ring wall
161a‧‧‧Installation Department
170‧‧‧ Mounting frame
171‧‧‧ first end
172‧‧‧ second end
180‧‧‧Handle θ1‧‧‧ angle θ2‧‧‧ top angle
D‧‧‧ spacing

Figure 1 is a perspective view of a surgical lamp in accordance with an embodiment of the present invention. Figure 2 is a cross-sectional view of the surgical light in accordance with an embodiment of the present invention. Figure 3 is a cross-sectional view of an LED light source module in accordance with an embodiment of the present invention. Figure 4 is an exploded perspective view of the LED light source module in accordance with an embodiment of the present invention. Figure 5 is a radial cross-sectional view of a concentrating mask in accordance with an embodiment of the present invention. Figure 6 is an axial cross-sectional view of a concentrating mask in accordance with an embodiment of the present invention.

10‧‧‧Surgical light

20‧‧‧Reflector

21‧‧‧Reflection Department

22‧‧‧ accommodating space

100‧‧‧LED light source module

110‧‧‧LED light source

120‧‧‧ concentrator

130‧‧‧ Concentrating lens

140‧‧‧reflector

150‧‧‧ fixed disk

160‧‧‧ fixed seat

170‧‧‧ Mounting frame

180‧‧‧Handle

Claims (11)

An LED light source module for a surgical lamp, comprising: an LED illumination source for emitting a light; a concentrating cover surrounding the LED illumination source, wherein the light emitted by the LED illumination source is used by the concentrator The inner surface is reflective; a concentrating lens having a first curved surface and a second curved surface, the first curved surface facing the LED illuminating source, the curvature of the first curved surface being different from the curvature of the second curved surface, the concentrating lens Provided in an opening of the concentrating cover, wherein the light reflected by the inner surface of the concentrating cover penetrates the focusing lens and is focused by the condensing lens; and a reflecting member is interposed between the condensing lens and the concentrating lens Having a spacing, the light is focused by the collecting lens to the reflecting member, the reflecting member for reflecting the light focused by the collecting lens, the second curved surface of the collecting lens facing the reflecting member. The LED light source module of the surgical lamp of claim 1, wherein the concentrating section has a polygonal cross section. The LED light source module of the surgical light of claim 1 or 2, wherein the inner surface of the concentrating cover has a first surface and a second surface connecting the first surface, the first surface Located between the LED illumination source and the second surface, the first surface and the second surface have an angle between 90 degrees and 180 degrees. The LED light source module of the surgical lamp of claim 1, wherein the curvature of the first curved surface of the collecting lens is greater than the curvature of the second curved surface. The LED light source module of the surgical lamp of claim 1, comprising a fixed disk, wherein the fixed disk has a mounting surface, wherein the LED light source and the collecting cover are coupled to the LED light source module Mounting surface. The LED light source module of the surgical lamp of claim 1, wherein the distance between the reflecting member and the collecting lens is between 0.1 cm and 135 cm. The LED light source module of the surgical lamp of claim 1, wherein the reflecting member is a cone, and the reflecting member has an apex angle between 30 degrees and 178 degrees. An LED light source module for a surgical lamp, comprising: an LED illumination source for emitting a light; a concentrating cover surrounding the LED illumination source, wherein the light emitted by the LED illumination source is used by the concentrator The inner surface is reflective; the fixed disk has a mounting surface, wherein the LED light source and the concentrating cover are coupled to the mounting surface; and a fixing base is coupled to the mounting surface of the fixing plate, the fixing seat has a ring wall, the ring wall surrounds the concentrating cover, the ring wall has a mounting portion; a concentrating lens is disposed at one of the openings of the concentrating cover, and the concentrating lens is mounted on the mounting portion of the ring wall, The light reflected by the inner surface of the concentrating mask penetrates the concentrating lens and is focused by the condensing lens; and a reflecting member has a spacing from the condensing lens, and the ray is concentrated by the condensing lens The lens is focused to the reflective member for reflecting the light focused by the collecting lens. An LED light source module for a surgical lamp, comprising: an LED illumination source for emitting a light; a concentrating cover surrounding the LED illumination source, wherein the light emitted by the LED illumination source is used by the concentrator Internal surface reflection; a fixed disk having a mounting surface, wherein the LED light source and the concentrating cover are coupled to the mounting surface; and a mounting frame having a first end and a second end, the first end Combining the mounting surface of the fixed disk; a collecting lens disposed in one of the openings of the collecting cover, wherein the light reflected by the inner surface of the collecting cover penetrates the collecting lens and is used by the collecting lens Focusing; and a reflecting member coupled to the second end of the mounting frame, the reflecting member and the collecting lens have a spacing, the light is focused by the collecting lens to the reflecting member, the reflecting member is used for The light that is focused by the collecting lens is reflected. The LED light source module of the surgical lamp of claim 9, wherein the distance between the reflecting member and the collecting lens is between 0.1 cm and 135 cm. A surgical light comprising an LED light source module of a surgical light according to any one of claims 1 to 10, and a reflector having a light reflecting portion and an accommodating space, the reflective portion surrounding In the accommodating space, the LED light source module is coupled to the reflective portion and received in the accommodating space, wherein the light is reflected by the reflective member of the LED light source module to the reflective portion.