CN201764297U - Surgical lamp and its lighting unit - Google Patents

Abstract

The utility model relates to an operating lamp, which is formed by a plurality of lighting units, a fixed seat, a lamp body focusing device and a lamp shell. The lighting unit is designed in a modularized way, and can quickly focus and adjust a plurality of LED light source groups and reflectors, so that each lighting unit receives and focuses light into an integrated light beam; in addition, after the plurality of lighting units are combined with the lamp shell, the left and right inclination angles of the lighting units are adjusted by adjusting the height difference between at least two pivoting parts at the outer ends of the lighting units and the supporting piece, so that the light beams can be accurately adjusted to pass through the center of the lamp body. Furthermore, the adjustment of the lamp body focusing device enables each lighting unit to change the elevation angle of the inner end, and the integrated light beam can be adjusted to the projection position at will in the horizontal direction to adjust the irradiation area.

Description

Surgical lights and their lighting units

technical field

The utility model relates to an operating lamp, in particular to an operating lamp capable of quickly reflecting and focusing a plurality of LED light source groups. In particular, the present invention further includes a lighting unit for an operating light. the

Background technique

According to the surgical operation, the operating light is an indispensable and important instrument for providing illumination. At present, the known structures of general operating lamps can be divided into single light source single reflector structure and multi-light source structure. The single light source single reflector structure adopts a single light source with high power such as 150W, such as a halogen lamp or a gas discharge lamp ( High Intensity Discharge (HID for short) is a light source that is reflected and concentrated by a reflector to achieve the purpose of use. The multi-light source structure uses multiple light sources with a power of 30-50W, such as halogen lamps or gas discharge lamps to form multiple beams, and then concentrates the beams on one projection surface through structural adjustment to achieve the purpose of use; When the light source structure is implemented, multiple light sources can be installed in a single lamp body, or individual light sources can be formed into a small lamp body, and then multiple small lamp bodies can be assembled into a large lamp body. the

With the continuous research and development of high-brightness LEDs, LEDs have been used in surgical lamps. Since the individual power of LEDs is only about 1.5W-3W, it is much smaller than the aforementioned halogen lamps or gas discharge lamps. Therefore, LEDs can only provide sufficient illumination by adopting a multi-light source structure, which will lead to a much more complicated structure of the LED surgical lamp than the aforementioned single light source, single reflector structure and multi-light source structure. the

In fact, the light temperature emitted by LEDs is extremely low, which is very suitable for the needs of surgical lighting. At the same time, the color rendering and color temperature of LEDs are becoming more and more mature. It can focus and adjust the focus (adjust the irradiation area), so it cannot adopt a fixed beam angle like LED street lights or general lighting. In addition, LED surgical lights need multi-directional LEDs to converge together, so it is impossible to use large integrated LED light sources, such as For LED street lights, the reason for this lies in the fact that a large light source cannot be converted into a light beam that meets the requirements. Therefore, in practical application, LED surgical lights need to use many small LED light sources, which will lead to structural complexity. the

Furthermore, the temperature of the light emitted by the LED is extremely low, but the heat generated by itself must be able to be effectively guided out, otherwise the heat storage exceeds the rated operating temperature of the LED, which will cause rapid deterioration of the LED, reduce the luminous flux, or even burn out. Thus affecting the service life. Therefore, how to effectively dissipate the heat generated by dozens of LEDs is an important issue that must be solved in the design of LED surgical lights. the

In particular, the light projected by the LED is a kind of light with a strong direction. At present, turning it into an effective light beam and applying it to the surgical lamp is nothing more than two ways of collecting light by lens and reflecting light by reflector. Among them, the lens method is more direct and the structure is relatively simple, but because the lens method emits a point-like strong light directly, it will be extremely dazzling when the medical staff look directly at the lamp body; while the reflective light collection can project the direct light of the LED On the reflector, and through the special design of the reflective surface, such as a small square surface, the reflected light is uniformly formed into a beam and projected, so when the medical staff look directly at it, it is the light of a reflective surface, not a point-like strong light. Therefore, from the above description, it can be understood that the reflective light collection method of the mirror is better than the lens light collection method, but the installation of so many mirrors, adjustment control, and heat dissipation problems are problems that the relevant industry needs to overcome. the

Utility model content

In view of this, the main purpose of the present utility model is to provide a surgical light, the lighting unit of the surgical lamp has the function of quickly reflecting and focusing a plurality of LED light source groups through a modular design; The irradiation area can be focused and adjusted at any time within a distance to meet the needs of surgical lighting. the

In order to achieve the aforementioned purpose, the technical means adopted by the utility model is to provide an operating light, which includes:

A plurality of lighting units, each lighting unit has a base plate, a plurality of LED light source groups are installed on the surface of the base plate, each LED light source set has a pair of light-transmitting holes on the surface of the base plate, and a connecting bridge is arranged between each light-transmitting hole, which is used to To install LEDs; there is a reflector on the top of each LED light source group, and there are at least two focusing devices between the reflector and each pair of light-transmitting holes. The inclination angle of the mirror enables each lighting unit to reflect and collect light and focus it into a collective beam, and project it to the predetermined projection point of each lighting unit;

A fixed seat, with a chamber in the center, and a plurality of chutes are provided at equal angles around the periphery, and each chute is inserted into the connecting part protruding from the inner end of the lighting unit;

A focusing device, which is to insert the upper part of a knob into the bottom of the fixed seat, and after a synchronously rotating screw is sleeved in the chamber, the top of the knob is combined with an end seal; a lifting ring is sleeved on the In addition to the screw rod, the lifting ring is combined with the connecting part of the inner end of each lighting unit, and at least one guide rod is provided between the lifting ring and the screw rod; when the handle is turned, each guide rod moves along the rotating screw rod. It is converted into a linear motion, so that the inner end of each lighting unit can be adjusted to tilt the elevation angle, so as to adjust the irradiation area of the collective light beam of each lighting unit;

A lamp housing, the center of the top inner wall is connected and fixed by the fixing seat, and the bottom plate extending inward from the bottom of the periphery of the lamp housing is used to connect the outer edge of each lighting unit. the

A fixing seat is further provided in the center of the connecting bridge, and the metal seat plate on the bottom surface of the LED is fixed on the top surface of the fixing seat. the

Wherein the connecting bridge and the bottom surface of the fixing seat are connected with a metal heat dissipation block with the same cross-sectional shape. the

Wherein the outer edge of each lighting unit further includes at least two pivotal joints, and the bottom plate of the lamp housing corresponds to the positions of the pivotal joints, and supports with finely adjustable height are protruded, and each support is sleeved in the pivotal joints; by adjusting the pivotal joints The height difference from the support member is used to change the left and right inclination angles of each lighting unit, so that the collective light beams of each lighting unit can accurately pass through the center of the handle. the

The secondary purpose of the utility model is to provide a lighting unit for an operation lamp, the lighting unit has the function of quickly reflecting and focusing multiple LED light source groups through a modular design. the

In order to achieve the aforementioned purpose, the technical means adopted by the utility model is to provide a lighting unit for operating lights, which includes:

A base plate with a plurality of LED light source groups installed on its surface, each LED light source group has a pair of light-transmitting holes on the surface of the substrate, and a connecting bridge is provided between each light-transmitting hole, which is used to install LEDs;

The number corresponds to the reflectors of the LED light source group, and each reflector is arranged on the top of the LED light source group, and at least two focusing devices are arranged between the reflector and each pair of light holes;

By adjusting each focusing device to change the distance between the reflector and the LED, and then adjust the inclination angle of the reflector, the lighting unit reflects, collects and focuses light into a collective light beam, which is projected to a predetermined projection point of the lighting unit. the

Wherein the center of the connecting bridge is further provided with a fixed seat, and the metal seat plate on the bottom surface of the LED is fixed on the top surface of the fixed seat. the

Wherein the connecting bridge and the bottom surface of the fixing seat are connected with a metal heat dissipation block with the same cross-sectional shape. the

The beneficial effect of the utility model is that the operating light can focus and adjust the irradiation area at any time within a certain distance to meet the needs of the operating lighting. In addition, the lighting unit has the ability to quickly reflect and integrate multiple LED light source groups through modular design. Focused features. the

Description of drawings

For further revealing the concrete technical content of the present utility model, please refer to accompanying drawing at first, wherein:

Fig. 1 is the three-dimensional exploded view of the utility model lighting unit;

Fig. 2 is the three-dimensional view after the lighting unit of the present invention is assembled;

Fig. 3 is the sectional view taken along line A-A of Fig. 2;

Figure 4 is a sectional view of the focus adjustment of the lighting unit of the present invention;

Figure 5 is a three-dimensional exploded view of the utility model surgical lamp;

Fig. 6 is a partially enlarged cross-sectional view of the utility model after the operating lamp is assembled;

Fig. 7 is the top view of the utility model operating light;

Fig. 8 is a schematic diagram of focusing of the utility model surgical lamp;

9 and 10 are cross-sectional views of the operating light of the present invention before and after focusing. the

Detailed ways

As shown in FIGS. 1 and 5 , the utility model operating lamp is composed of a plurality of lighting units 1 , a fixing base 2 , a focusing device 3 , and a lamp housing 4 . the

Wherein, each lighting unit 1 has a geometric shape, such as a fan-shaped substrate 11, and a plurality of LED light source groups 12 are installed on the surface of the substrate 11. As shown in FIG. Shaped, such as semicircular light-transmitting holes 121, each pair of light-transmitting holes 121 has a connecting bridge 122, and in order to provide the accommodating and positioning of the LED 124 described later, a circular fixing bridge 122 is provided in the center of the connecting bridge 122. seat 123, and LED 124 is glued on an aluminum seat plate 125, and it passes through known connector 126, for example screw passes this seat plate 125 and fixing seat 123, and is further locked on a connecting bridge 122 and fixing seat 123 is an aluminum heat dissipation block 127 with the same cross-sectional shape, and the surface of the heat dissipation block 127 is provided with known heat dissipation fins to increase the heat dissipation area. Therefore, the heat energy generated when the LED 124 emits light can pass through the seat plate 125, the connecting bridge 122 and the fixing seat 123, and spread to the substrate 11 and the heat dissipation block 127, so as to prevent the LED 124 from exceeding the rated operating temperature, thereby prolonging the service life. the

Wherein, since each connecting bridge 122 can not be designed too wide in order to allow the reflected light beam to pass through, thereby forming a heat conduction bottleneck, so each connecting bridge 122 can be bent upward and/or downward on both sides of the light beam traveling direction to form a heat dissipation folding wall 122a. Furthermore, the two sides of the fan-shaped base plate 11 can be bent to form a vertical fold 11a respectively. The function is that, in addition to increasing the strength of the base plate 11, the heat dissipation area of the base plate 11 can be increased, and it does not take up space. And can increase the advantage of heat dissipation performance. the

Furthermore, a curved reflector 13 is provided on the top of each LED light source group 12, and at least two focus devices 14 are arranged between the reflector 131 and each pair of light-transmitting holes 121, and each focus device 14 is a fixing member 141, such as The bolts pass through the preset positioning holes 11b on the periphery of each pair of light-transmitting holes 121, and are locked and connected with a joint member 142, such as a nut, so that the fixing member 141 is vertically arranged on the periphery of each pair of light-transmitting holes 121; Body 143, for example, a spring is sleeved on the joint 142 of the fixing member 141, and then the perforation 131 with a diameter larger than the diameter of the fixing member 141 and a moderate gap is sleeved on the fixing member 141, so that the bottom of the periphery of the reflecting mirror 13 After the edge adjoins the elastic body 143 , finally, a rotating member 144 , such as an embossed knob, is screwed to the fixing member 141 , so that the reflector 13 is supported by the elastic body 143 . As shown in FIG. 2 and FIG. 3 , it is a perspective view and a cross-sectional view of the illumination unit 1 of the present invention after the assembly of the lighting unit 1 without focus adjustment of the reflector 13 . the

As shown in Figure 4, if the focus adjustment of individual LED light source groups 12 and reflector 13 is desired, the operator only needs to rotate the rotating member 144 to lock into the depth of the fixing member 141, so as to control the focus of the reflector 13 and the LED 124 The distance can control the beam angle of each beam; because the perforation 131 of the reflector 13 is greater than the fixing part 141, it can allow at least two support points (perforation 131) of the reflector 13 to lock into the difference in depth, so that the angle of the reflector 13 can be adjusted arbitrarily The angle of inclination is so that the light beam of the LED 124 is reflected by the reflector 13, and then projected to the predetermined projection point of each lighting unit 1, such as the position 1 meter directly below the point B shown in Fig. 1 and Fig. 2, so that the lighting unit 1 The six individual light beams of the six groups of LED light source groups 12 are combined into one collective light beam. the

In order to make each lighting unit 1 can be combined into an operating light, a connecting portion 15 is stretched out at its inner end, and at least two pivotal joints 16 are provided at the outer end, as shown in FIGS. 1 and 2 , each pivotal joint 16 is A pivot hole 161 is defined at the outer edge of the base plate 11 , and a circular arc-shaped pivot cover 162 is attached to the top surface thereof. The combination of the connecting portion 15 and the pivot portion 16 will be further disclosed below. the

As shown in Figures 5 to 6, the utility model surgical light further includes a fixing seat 2, the top of which is combined with the lamp housing 4, a hollow chamber 21 is provided in the center of the fixing seat 2, and a plurality of The chute 22 and each chute 21 can be inserted into the connecting portion 15 of an individual lighting unit 1 so as to be combined with the lifting ring 36 of a focusing device 3 . the

The focusing device 3 is to insert the upper section of a knob 31 into the bottom of the fixing base 2, and connect a screw 32 in the chamber 21, so that the screw 32 can rotate synchronously with the knob 31; the top of the knob 31 is combined with one end The seal 33 is, for example, a screw cap. A gasket 34 is preferably combined between the end seal 33 and the screw rod 32 to prevent the end seal 33 from being separated from the knob 31 . In order to provide smooth rotation of the handle 31 and the screw rod 32 , a thrust bearing 35 is respectively provided between the handle 31 and the fixing base 2 , and between the fixing base 2 and the screw rod 32 . the

Wherein, the screw rod 32 is provided with a lifting ring 36, and a plurality of positioning grooves 361 are provided on the top surface of the screw rod 32 at equal angles. The top surface of the ring 36 prevents each connecting portion 15 from axially deviating from the corresponding positioning groove 361 . Now, after at least one guide rod 363 passes through the chute 22 and the lifting ring 36 provided in the longitudinal direction of the fixed seat 2, each guide rod 363 and a coupling part 364, such as a nut, are locked to make the guide rod The inner end of 363 is inserted into the groove of the screw rod 32 (as shown in FIG. 9 ). the

There is a concave portion 41 in the center of the top surface of the lamp housing 4 , and the bottom surface thereof is fixedly connected with the fixing base 2 , wherein the concave portion 41 can be closed by a cover 411 . The bottom plate 42 extending inward from the bottom of the periphery of the lamp housing 4 corresponds to the position of the pivot joint 16 at the outer end of each lighting unit, and each protrudes a support 43 whose height can be finely adjusted, such as a ball shaft. The top of the support 43 is sleeved on the pivot joint. The hole 161 is connected to the pivot cover 162 so that the outer end of each lighting device 1 is pivoted and supported on the support member 43 on the bottom plate 42 , while the connecting portion 15 at the inner end is fixedly connected to the lifting ring 36 . Wherein, each supporting member 43 is locked on the supporting member 43 by a connecting member 431, such as a bolt passing through the bottom plate 42, and in order to change the inclination angle of the outer end of each lighting unit 1, each supporting member 43 and the bottom plate 42 can be selectively At least one rising spacer 432 is socketed on the ground. the

The outer edge of each lighting unit further includes at least two pivot joints 16, and the bottom plate of the lamp housing 4 corresponds to the positions of the pivot joints 16, and supports 43 that can be finely adjusted in height are protruded, and each support 43 is sleeved on the pivot joints. 16; by adjusting the height difference between the pivot joint 16 and the support member 43, the left and right inclination angles of each lighting unit can be changed, so that the collective light beams of each lighting unit 1 can accurately pass through the center of the rotary handle 31. the

In particular, the bottom opening of the bottom plate 42 of the lamp housing 4 can be further equipped with a transparent lampshade 44, and the center of the lampshade 44 is provided with a through hole 441, so that the bottom of the fixing seat 2 can protrude, and a joint 442, such as a nut and A washer 443 is combined with the bottom of the fixing seat 2, so that the knob 31 protrudes from the bottom of the lampshade 44, so as to facilitate the operation of the medical personnel. Wherein, a decorative ring 45 is combined with the periphery of the lampshade 44 to modify the handover position with the bottom of the lamp housing 4 . the

Please refer to Fig. 7, which is a top view of the operating lamp of the present utility model. Six fan-shaped lighting units 1 are installed in the lamp housing 4. The inner ends of each lighting unit 1 are connected to the focusing device 3, and the two outer ends The pivotal portion 16 is supported on the supporting member 43 of the bottom plate 42 of the lamp housing 4 . That is, taking the lighting unit 1 at the center on the left side as an example, the center point of the fixing base 2 forms a Y axis and an X axis vertically and horizontally. the

Please refer to Fig. 8 to Fig. 10, before leaving the factory, the two pivot joints 16 at the outer end of the lighting unit 1 in the center of the left side are adjusted by the height difference of the support member 43 to adjust the left and right inclination angle of the lighting unit 1 so that the light beam can be concentrated In the Y-axis projection direction, it can be accurately adjusted to the projection point C (shown in FIG. 8 ) passing through the center of the lamp body (that is, the center of the knob 31 ). The adjustment method of the remaining five lighting units 1 is the same as the above. Through this adjustment mechanism, the collective light beams of each lighting unit 1 on the operating light can be accurately projected to the place of use to meet the requirements of surgical lighting. the

When the operating light is installed in the operating room, when the medical staff turns the knob 31, the guide rod 363 can be converted into a linear motion along the rotating screw rod 32. At this time, the inner ends of each lighting unit 1 follow the The lifting ring 36 moves upwards or downwards synchronously, so that each lighting unit 1 can be adjusted by tilting the elevation angle of the inner end, and the collective light beam of each lighting unit 1 can be adjusted to the projection position along the X axis at will, so as to adjust the focus (adjust the irradiation) area). the

Therefore, through the implementation of the present utility model, the enhanced effect is that the modular design of the lighting unit can quickly adjust the focus of multiple LED light source groups and reflectors, so that each lighting unit can reflect, collect and focus light into a set light beam; in addition, when multiple lighting units are combined with the lamp housing, the height difference between at least two pivot joints at the outer end of each lighting unit and the support member is adjusted to adjust the left and right tilt angles of the lighting unit, so that each collective light beam can be accurately The adjustment to pass through the center of the lamp body. Furthermore, by adjusting the focusing device of the lamp body, each lighting unit changes the elevation angle of the inner end, so that the collective light beam can be adjusted to the projecting position in the horizontal direction at will, so as to adjust the irradiation area. the

In particular, the LED light source group of each lighting unit of the present invention can use the heat dissipation folding walls bent upward and/or downward on both sides of the connecting bridge to increase the heat dissipation area without affecting the passage of the reflected light beam; especially, The bottom of the connecting bridge can be combined with a cooling block with the same cross-section; and the two sides of the substrate can be bent into vertical folds, which can not only increase the strength of the substrate, but also increase the heat dissipation area of the substrate, which is unprecedented for similar products. A masterpiece never seen before. the

What the utility model discloses is a kind of preferred embodiment, and all partial changes or modifications originating from the technical idea of the utility model and easily deduced by those familiar with the technology do not depart from the utility model scope of claims. the

Claims (16)

1. A surgical light, characterized in that it comprises: A plurality of lighting units, each lighting unit has a base plate, and a plurality of LED light source groups are installed on the surface of the base plate, and each LED light source set has a pair of light-transmitting holes on the surface of the base plate, and a pair of light-transmitting holes is provided between each pair of light-transmitting holes for installing LEDs. The connecting bridge; the top of each LED light source group is provided with a reflector, and at least two focusing devices are arranged between the reflector and each pair of light transmission holes. The inclination angle of each lighting unit makes each lighting unit reflect and collect light and focus it into a collective beam, and project it to the predetermined projection point of each lighting unit; A fixing seat, a housing chamber is provided in the center, and a plurality of chutes are provided equiangularly around the periphery for the insertion of the connecting portion protruding from the inner end of the lighting unit; A focusing device, which is to insert the upper section of a knob into the bottom of the fixed seat, and after a screw rod that can rotate synchronously is sleeved in the chamber, the top of the knob is combined with an end seal; a lifting ring is sleeved on the screw rod In addition, the lifting ring is combined with the connecting part of the inner end of each lighting unit, and at least one guide rod is provided between the lifting ring and the screw rod; when the handle is turned, each guide rod moves along the rotating screw rod. It is converted into a linear motion, so that the inner end of each lighting unit can be adjusted to tilt the elevation angle, so as to adjust the irradiation area of the collective light beam of each lighting unit; A lamp housing, the center of the top inner wall is connected and fixed by the fixing seat, and the bottom plate extending inward from the bottom of the periphery of the lamp housing is used to connect the outer edge of each lighting unit. 2. The operating light according to claim 1, wherein a fixing seat is further provided in the center of the connecting bridge, and the metal seat plate on the bottom surface of the LED is fixed on the top surface of the fixing seat. 3. The operating light according to claim 2, wherein a metal cooling block with the same cross-sectional shape is connected to the connecting bridge and the bottom surface of the fixing seat. 4 . The operating light according to claim 1 , wherein two sides of the connecting bridge are bent upward and/or downward to form a heat dissipation folding wall, and each side of the base plate is bent to form a vertical folding edge. 5. The operating light according to claim 1, wherein the focusing device has a fixing part, which is fixed and protrudes from the predetermined positioning holes around the periphery of each pair of light-transmitting holes, and an elastic body sleeve After being installed on the fixing part, the perforation with the inner diameter of the reflector being larger than the outer diameter of the fixing part is sleeved on the fixing part, so that the bottom edge of the reflecting mirror is adjacent to the elastic body, and finally a rotating part is combined with the fixing part, so that The mirror is supported by an elastic body. 6 . The operating light according to claim 1 , wherein a gasket is further combined between the screw rod and the end seal, and a thrust bearing is respectively provided between the knob and the fixing base, and between the fixing base and the screw rod. 7. The operating light according to claim 1, wherein a plurality of positioning grooves are provided at equal angles on the top surface of the lifting ring, and after each positioning groove is used for the connection part of the lighting unit to be sleeved, another end cover is combined with the light unit. Lift ring top surface. 8. The operating light according to claim 1, wherein the outer edge of each lighting unit further includes at least two pivot joints, and the bottom plate of the lamp housing protrudes from the positions of the pivot joints to be finely adjustable in height, And each support piece is sleeved in the pivot joint; by adjusting the height difference between the pivot joint and the support piece, the left and right inclination angles of each lighting unit can be changed, so that the collective light beams of each lighting unit can accurately pass through the center of the handle. 9. The operating light according to claim 8, wherein each pivotal portion defines a pivotal hole on the outer edge of the base plate of each lighting unit, and a circular arc-shaped pivotal cover is attached to the top surface thereof; and the supporting The part is a ball shaft, the top of which is sleeved in the pivot hole and the pivot cover; wherein, each support part passes through the bottom plate with a connecting part, and is locked to the support part, and each support part and the bottom plate can be selectively disconnected. Install or connect at least one heightening spacer. 10. The operating light according to claim 1, wherein the bottom opening of the bottom plate of the lamp housing is further equipped with a transparent lampshade, and a through hole is opened in the center of the lampshade for the bottom of the fixing seat to protrude, and a combined The piece is combined with the bottom of the holder. 11. A lighting unit for an operating light, characterized in that it comprises: A substrate, on which a plurality of LED light source groups are installed on the surface, each LED light source group has a pair of light-transmitting holes on the surface of the substrate, and a connecting bridge for installing LEDs is provided between each light-transmitting hole; The number corresponds to the reflectors of the LED light source group, and each reflector is arranged on the top of the LED light source group, and at least two focusing devices are arranged between the reflector and each pair of light-transmitting holes; By adjusting each focusing device to change the distance between the reflector and the LED, and then adjust the inclination angle of the reflector, the lighting unit reflects, collects and focuses light into a collective light beam, which is projected to a predetermined projection point of the lighting unit. 12. The lighting unit for operating lights as claimed in claim 11, wherein a fixing seat is further provided in the center of the connecting bridge, and the metal seat plate on the bottom surface of the LED is fixed on the top surface of the fixing seat. 13. The lighting unit for operating lights as claimed in claim 12, wherein a metal cooling block with the same cross-sectional shape is connected to the connecting bridge and the bottom surface of the fixing base. 14. The lighting unit for operating lights as claimed in claim 11, wherein both sides of the connecting bridge are bent upwards and/or downwards to form heat dissipation folding walls, and the two sides of the substrate are respectively bent to form A vertical hem. 15. The lighting unit for operating lights as claimed in claim 11, wherein the focusing device has a fixing part, which is fixed and protrudes from the predetermined positioning holes around the periphery of each light-transmitting hole. An elastic body is sheathed on the fixing part, and then the perforation with a peripheral inner diameter larger than the fixing part's outer diameter is sheathed on the fixing part, so that the bottom edge of the reflecting mirror is adjacent to the elastic body, and finally a rotating part is combined with the fixing part The fixing part makes the reflector supported by the elastic body. 16. The lighting unit for operating lights according to claim 11, wherein the inner edge of the lighting unit is provided with a rod-shaped connecting portion, while the outer edge has at least two pivot joints, each pivot The connecting portion defines a pivot hole on the outer edge of the base plate, and an arc-shaped pivot cover is installed on the top surface thereof. the

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