Lighting device

Abstract

The utility model provides a lighting device, which is characterized in that a first optical module, a second optical module and a third optical module of the lighting device adopt modularized and integrated optical element design, so that a plurality of circular light spots exist in one optical module. The equal array combination of the first optical module, the second optical module and the third optical module is utilized to obtain more circular light spot superposition combination modes, so that the circular light spots on the surgical field area are superposed more uniformly, and diversified illumination requirements can be met.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to a lighting device. Background Art

[0002] The surgical shadowless lamp is a medical device used to provide lighting in the operating room. The surgical field is a specific area that needs to be illuminated and paid attention to during surgery. The surgical shadowless lamp adopts a dispersed arrangement of multiple light sources to eliminate or reduce the shadows generated in the surgical field, thereby providing clear and uniform lighting. The surgical shadowless lamps currently on the market have improved assembly efficiency through modular light source design. However, traditional surgical shadowless lamps can only provide conventional superimposed light spots to the surgical field. Several light spots are superimposed and unevenly distributed, resulting in limited types of superimposed light spots and a single size, which makes it difficult to meet diverse lighting needs. Utility Model Content

[0003] The technical purpose of the present utility model is to provide a lighting device, aiming to solve at least one problem raised in the background technology.

[0004] In order to solve the above technical problems, the utility model is implemented as follows: a lighting device includes a plurality of lighting modules;

[0005] Each of the illumination modules includes a plurality of optical modules, each of the optical modules includes N illumination units (N is a natural number and N≥3) formed in one piece, each of the illumination units forms a one-to-one corresponding circular light spot on a surgical field area at a preset distance from the light-emitting surface, and among the N circular light spots formed by any one of the optical modules, two of the circular light spots at least partially overlap;

[0006] The optical module is a plurality of first optical modules, at least one second optical module and at least one third optical module; in the same illumination module, the first optical modules and the second optical modules are arranged at equal angles on the arc; on the outer arc track of each second optical module, the third optical module and the second optical module are arranged in an equal angle array; wherein the circular light spots of any adjacent first optical module and second optical module, the adjacent second optical module and third optical module, and the adjacent two first optical modules are at least partially overlapped to form a light spot pattern on the surgical field area;

[0007] The illumination modules are distributed at equal angles along the same circular trajectory, so that the light spot patterns are arranged in an equal angle array on the surgical field region with the center of the surgical field region as the center of the circle, and adjacent light spot patterns at least partially overlap.

[0008] Further, the first optical module, the second optical module and the third optical module each include a first illumination unit, a second illumination unit and a third illumination unit formed in one piece;

[0009] The light emitting surfaces of the first light unit, the second light unit and the third light unit are located in the same plane, and the distance from the center of the first light unit to the center of the second light unit is equal to the distance from the first light unit to the center of the third light unit.

[0010] Further, the first illumination unit, the second illumination unit and the third illumination unit are used to form a first circular light spot, a second circular light spot and a third circular light spot on the surgical field area respectively;

[0011] The centers of the first circular light spot, the second circular light spot and the third circular light spot are on the same straight line.

[0012] Furthermore, the centers of the second circular light spot and the third circular light spot overlap.

[0013] Furthermore, the diameters of the second circular light spot and the third circular light spot are different.

[0014] Furthermore, a light-transmitting plate is disposed on the second illumination unit and / or the third illumination unit, and the light-transmitting plate is used to adjust the diameter of the light spot so that the diameters of the second circular light spot and the third circular light spot are different.

[0015] Furthermore, the centers of the multiple first circular light spots corresponding to the multiple first optical modules are located at the center of the surgical field area, and the centers of the multiple second circular light spots corresponding to the multiple first optical modules and the centers of the multiple third circular light spots are located on a circular trajectory with the center of the surgical field area as the center.

[0016] Furthermore, centers of the circular light spots formed by the second optical module and the third optical module in the surgical field are on the same straight line.

[0017] Further, the centers of the first circular light spots corresponding to the plurality of second optical modules and the plurality of third optical modules overlap.

[0018] Furthermore, in the lighting device, at least three lighting modules are distributed at equal angles along the same circular trajectory.

[0019] Compared with the prior art, the lighting device in the utility model has the following beneficial effects: the first optical module, the second optical module and the third optical module adopt a modular and integrated optical element design, so that one optical module has multiple circular light spots. The equal-space array combination of the first optical module, the second optical module and the third optical module is used to obtain more circular light spot superposition combinations, so that the circular light spots on the surgical field area are superimposed more evenly, which can meet the diverse lighting needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the layout of the lighting device in some embodiments of the utility model;

[0021] Figure 2 is a schematic structural diagram of the first illumination unit, the second illumination unit and the third illumination unit at two different viewing angles in some embodiments of the utility model;

[0022] Figure 3 A schematic diagram of the coordinate position relationship of the first illumination unit, the second illumination unit and the third illumination unit in some embodiments of the present utility model;

[0023] Figure 4 Schematic diagram of light irradiation of the first illumination unit, the second illumination unit and the third illumination unit when the preset distance is D=1000mm in some embodiments of the present invention;

[0024] Figure 5 It is a schematic diagram of the coordinate position relationship of the light spots formed on the surgical field area when the preset distance D=1000mm is set between the first illumination unit, the second illumination unit and the third illumination unit in some embodiments of the present invention;

[0025] Figure 6 is a schematic diagram of the distribution of the second circular light spot and the third circular light spot in some embodiments of the utility model;

[0026] Figure 7 It is a structural schematic diagram of a first illumination unit, a second illumination unit and a third illumination unit in some embodiments of the utility model from a viewing angle;

[0027] Figure 8 is a schematic diagram of the layout of the lighting module in some embodiments of the utility model;

[0028] Fig. 9 Schematic diagram of light irradiation and light spot distribution of the first optical module of the lighting module in some embodiments of the utility model when the preset distance is D=1000mm;

[0029] Fig.10 yes Fig. 9A schematic diagram of the distribution of light spots formed on the irradiated surface by the first optical module of the illumination module;

[0030] Fig.11 is a schematic diagram of the distribution of light spots formed on the irradiated surface by the first optical module in the illuminating device in some embodiments of the utility model;

[0031] Fig.12 Schematic diagram of light irradiation and light spot distribution when the preset distance of the lighting module is D=1000mm in some embodiments of the utility model;

[0032] Fig.13 yes Fig.12 A schematic diagram of the light spot distribution of the first optical module, the second optical module and the third optical module of the illumination module;

[0033] Fig.14 is a schematic diagram of the distribution of light spots formed on the irradiated surface by the second optical module in the illuminating device in some embodiments of the utility model;

[0034] Fig.15 yes Figure 8 Schematic diagram of the superposition of light spots formed by the lighting device in the surgical field.

[0035] In the accompanying drawings, each figure mark represents: 1, lighting device; 10, lighting module; 11, first optical module; 12, second optical module; 13, third optical module; 21, first illumination unit; 21a, first circular light spot; 22, second illumination unit; 22a, second circular light spot; 23, third illumination unit; 23a, third circular light spot; 30, PCB board; 40, light-transmitting plate; C, center of surgical field area; S, light. DETAILED DESCRIPTION

[0036] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the utility model, and cannot be understood as limiting the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential", "radial" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0039] Example:

[0040] See also Figures 1 to 15 , in this embodiment, a lighting device includes a plurality of lighting modules 10;

[0041] Each lighting module 10 includes a plurality of optical modules, each optical module includes N integrated illumination units (N is a natural number and N≥3), each illumination unit forms a one-to-one corresponding circular light spot on the surgical field area at a preset distance from the light emitting surface, and among the N circular light spots formed by any optical module, two circular light spots at least partially overlap;

[0042] The optical module is a plurality of first optical modules 11, at least one second optical module 12 and at least one third optical module 13; in the same illumination module 10, the first optical modules 11 and the second optical modules 12 are arranged at equal angles on the arc; on the outer arc track of each second optical module 12, the third optical module 13 and the second optical module 12 are arranged in an equal angle array; wherein the circular light spots of any adjacent first optical module 11 and second optical module 12, the adjacent second optical module 12 and third optical module 13, and the adjacent two first optical modules 11 at least partially overlap, forming a light spot pattern on the surgical field area;

[0043] The illumination modules 10 are distributed at equal angles along the same circular trajectory, so that the light spot patterns are arranged in equal angles on the surgical field region with the center C of the surgical field region as the center, and adjacent light spot patterns at least partially overlap.

[0044] First, in this embodiment, the first optical module 11, the second optical module 12 and the third optical module 13 adopt a modular and integrated optical element design, so that one optical module has multiple circular light spots. Among the N circular light spots formed by any optical module, the two circular light spots can intersect, be inscribed or contained, so that the N circular light spots formed by each optical module on the surgical field area can be naturally superimposed, and a transition is formed between the two circular light spots, and a single optical module can form a variety of superimposed light spot types.

[0045] Further, in the same lighting module 10, the circular light spots generated by adjacent optical modules in the surgical field area at least partially overlap, forming a light spot pattern with uniform transition between the circular light spots; in the same lighting device 1, the light spot pattern can be arrayed at equal angles with the center C of the surgical field area as the center, ensuring the uniform distribution of the light spot pattern, and the adjacent light spot patterns at least partially overlap, so that the light spot patterns are superimposed, and the overall light spot size is diverse and rich in variety. By controlling different optical modules and / or different lighting modules 10, the size and shape of the overall light spot provided by the lighting device 1 in the surgical field area can be changed, which is suitable for a variety of surgical scenarios.

[0046] At least three illumination units are integrally formed to obtain the first optical module 11, the second optical module 12 or the third optical module 13. Such a design pre-sets the optical axis and the assembly deflection angle of each illumination unit, and can be integrated and welded to the same PCB board 30. There is no need to make a separate positioning structure for each illumination unit, which greatly simplifies the production process and avoids excessive hardware-driven wiring when each illumination unit has a separate positioning structure, thereby reducing the error rate of manual wiring during the production process and improving the reliability of the lighting device 1.

[0047] It should be known that the present invention does not limit the number of illumination units, and the number of illumination units can be increased or decreased according to the needs of the usage scenario, as long as the number of illumination units in the first optical module 11, the second optical module 12 and the third optical module 13 is greater than 3.

[0048] Each illumination unit can not only form a circular light spot, but also change the size and shape of the circular light spot by adding a light-transmitting structure with different functions to each illumination unit, such as using a striped light-transmitting plate on an illumination unit to make the illumination unit form an elliptical light spot, or using a scale panel on an illumination unit to expand the size of the circular light spot. Specifically, the illumination unit in the utility model can be an optical element such as a lens or a reflective cup, and a mounting position for assembling a light-transmitting structure can be reserved on the lens or the reflective cup, so as to add a light-transmitting structure to change the size and shape of the circular light spot.

[0049] Secondly, the utility model utilizes an equidistant array combination of the first optical module 11, the second optical module 12 and the third optical module 13 to obtain more circular light spot superposition combinations, so that the circular light spots on the surgical field area are superimposed more evenly, thereby improving the clarity of the surgical field light spot formed by the superposition of multiple circular light spots.

[0050] By controlling the first optical module 11, the second optical module 12 and the third optical module 13 individually or simultaneously and adjusting the illumination intensity, illumination and brightness of the illumination units on each optical module, the size and illumination of the light spot formed by superimposing multiple circular light spots on the surgical field area can be changed, thereby meeting diverse lighting needs.

[0051] Furthermore, if Figure 1 and 2 As shown, the first optical module 11, the second optical module 12 and the third optical module 13 each include an integrally formed first illumination unit 21, a second illumination unit 22 and a third illumination unit 23;

[0052] The light emitting surfaces of the first illumination unit 21 , the second illumination unit 22 and the third illumination unit 23 are located in the same plane, and the distance from the center of the first illumination unit 21 to the center of the second illumination unit 22 is equal to the distance from the first illumination unit 21 to the center of the third illumination unit 23 .

[0053] The light emitting surfaces of the first illumination unit 21, the second illumination unit 22 and the third illumination unit 23 are located in the same plane, which is beneficial to the installation of the integrated optical module. Figure 2 As shown, taking the first optical module 11 as an example, the first optical module 11 also includes a PCB board 30 having an LED light source, and the first illumination unit 21, the second illumination unit 22 and the third illumination unit 23 are respectively connected to the LED light sources on the PCB board 30.

[0054] The first illumination unit 21, the second illumination unit 22 and the third illumination unit 23 are not simply spliced ​​together with their optical axes parallel. The first illumination unit 21, the second illumination unit 22 and the third illumination unit 23 form a certain geometric distribution relationship when they are integrated into one piece, that is, the distance from the center of the first illumination unit 21 to the center of the second illumination unit 22 is equal to the distance from the first illumination unit 21 to the center of the third illumination unit 23.

[0055] Specifically, Figure 3As shown, in some embodiments, a first rectangular coordinate system is established with the light emitting surfaces of the first illumination unit 21, the second illumination unit 22 and the third illumination unit 23 as references, and the preset distance between the first illumination unit 21, the second illumination unit 22 and the third illumination unit 23 is D=1000mm (that is, the distance between the light emitting surface and the plane where the surgical field area is located is D=1000mm), a line from the center point of the second illumination unit 22 to the center point of the third illumination unit 23 is used as the x-axis of the first rectangular coordinate system, a straight line perpendicular to the midpoint of the line connecting the centers of the second illumination unit 22 and the third illumination unit 23 is used as the y-axis of the first rectangular coordinate system, the midpoint of the line connecting the centers of the second illumination unit 22 and the third illumination unit 23 is used as the first origin (0, 0), the coordinates of the center point of the first illumination unit 21 are (0, d1), the coordinates of the center point of the second illumination unit 22 are (-d2, 0), and the coordinates of the center point of the third illumination unit 23 are (d2, 0).

[0056] After the geometric distribution relationship among the first illumination unit 21, the second illumination unit 22 and the third illumination unit 23 is determined, the deflection angle of each illumination unit can be calculated according to the distance from the light emitting surface of the first illumination unit 21, the second illumination unit 22 and the third illumination unit 23 to the plane of the surgical field area, and the position of the center C of the surgical field area that each circular light spot needs to illuminate.

[0057] As an example, Figure 4 It is a schematic diagram of the light S irradiation of the first illumination unit 21, the second illumination unit 22 and the third illumination unit 23 when the preset distance is D=1000mm. The center of the first circular light spot 21a needs to coincide with the center C of the surgical field area. The preset distance between the first illumination unit 21, the second illumination unit 22 and the third illumination unit 23 is D=1000mm. The multiple first illumination units 21 are arranged at equal angles on an arc with a radius of R1. The deflection angle of each illumination unit can be calculated based on the above information.

[0058] In addition, the preset distance D of the first illumination unit 21, the second illumination unit 22 and the third illumination unit 23 can be changed and is not limited to D=1000mm. Those skilled in the art can calculate and set the deflection angle of each illumination unit accordingly according to the geometric distribution relationship provided by the first illumination unit 21, the second illumination unit 22 and the third illumination unit 23 in the present invention according to the requirements of different usage scenarios, based on the distance D between the light emitting surface and the illumination surface, to manufacture the corresponding optical module and lighting device 1.

[0059] Furthermore, if Figure 5 As shown, the first illumination unit 21, the second illumination unit 22 and the third illumination unit 23 are used to form a first circular light spot 21a, a second circular light spot 22a and a third circular light spot 23a on the surgical field area respectively;

[0060] The centers of the first circular light spot 21a, the second circular light spot 22a and the third circular light spot 23a are on the same straight line.

[0061] It should be understood that the centers of the first circular light spot 21a, the second circular light spot 22a and the third circular light spot 23a may overlap or not overlap, and the diameters of the first circular light spot 21a, the second circular light spot 22a and the third circular light spot 23a may be the same or different. Through the diversified overlap of the first circular light spot 21a, the second circular light spot 22a and the third circular light spot 23a and the setting of multiple diameter sizes, each optical module has a different light spot combination mode, which provides more light spot combination modes for the circumferential equal array combination of multiple optical modules, for example Figure 5 and Figure 6 The two light spot combinations shown are as follows; the centers of the first circular light spot 21a, the second circular light spot 22a and the third circular light spot 23a are on the same straight line, and the obtained superimposed light spots are uniform.

[0062] Furthermore, if Figure 5 As shown, the centers of the second circular light spot 22a and the third circular light spot 23a overlap.

[0063] like Figure 5 As shown, in some embodiments, a second rectangular coordinate system is established based on the illumination surfaces of the first illumination unit 21, the second illumination unit 22, and the third illumination unit 23, and the preset distance between the first illumination unit 21, the second illumination unit 22, and the third illumination unit 23 is D=1000mm, and the first circular light spot 21a, the second circular light spot 22a, and the third circular light spot 23a are located on the illumination surface.

[0064] The perpendicular line passing through the center point of the second circular light spot 22a and the line connecting the center points of the first circular light spot 21a and the second circular light spot 22a is used as the x-axis of the second rectangular coordinate system, and the line connecting the center point of the first circular light spot 21a and the center point of the second circular light spot 22a is used as the y-axis of the second rectangular coordinate system. The coordinates of the center point of the first circular light spot 21a are (0, d1), the coordinates of the center point of the second circular light spot 22a are (0, 0), and the coordinates of the center point of the third circular light spot 23a are (0, 0).

[0065] The second circular light spot 22a and the third circular light spot 23a are superimposed and transitioned with the first circular light spot 21a, and the second circular light spot 22a overlaps with the third circular light spot 23a. By adjusting the light intensity, illumination and brightness of the second illumination unit 22 and the third illumination unit 23, and then changing the spot size and illumination of the second circular light spot 22a and the third circular light spot 23a, the transition between the first circular light spot 21a, the second circular light spot 22a and the third circular light spot 23a can be achieved, and the circular light spots are evenly superimposed, so that the light spot obtained by the illumination of the lighting device 1 is clearer and the spot size variation is richer.

[0066] Furthermore, the diameters of the second circular light spot 22a and the third circular light spot 23a are different.

[0067] like Figure 6 As shown, in some embodiments, the diameter of the second circular light spot 22a is greater than the diameter of the third circular light spot 23a. The difference between the second circular light spot 22a and the third circular light spot 23a makes the size and shape of the light spot obtained by the illumination device 1 vary.

[0068] Furthermore, if Figure 7 As shown, a light-transmitting plate 40 is provided on the second illumination unit 22 and / or the third illumination unit 23, and the surface of the light-transmitting plate 40 has uniform protrusions. The light-transmitting plate 40 is used to adjust the diameter of the light spot so that the diameters of the second circular light spot 22a and the third circular light spot 23a are different.

[0069] The uniform protrusions on the surface of the light-transmitting plate 40 can control and scatter the light, realize the diffusion of the light S, thereby adjusting the diameter of the light spot, making the diameters of the second circular light spot 22a and the third circular light spot 23a different, and making the size and shape of the light spot obtained by the illumination device 1 varied. As an example, the light-transmitting plate 40 can be a beaded panel with uniform micro beads on the surface, or a scale panel.

[0070] Specifically, Figure 7 As shown, in some embodiments, the second illumination units 22 of the first optical module 11, the second optical module 12, and the third optical module 13 are all provided with a bead panel as a light-transmitting plate 40, and the superimposed light spots of the first optical module 11, the second optical module 12, and the third optical module 13 on the plane of the surgical field area are as shown in FIG. Figure 6 shown.

[0071] Furthermore, if Fig. 9 and 10 As shown, the centers of the multiple first circular light spots 21a corresponding to the multiple first optical modules 11 are located at the center C of the surgical field area, and the centers of the multiple second circular light spots 22a and the centers of the multiple third circular light spots 23a corresponding to the multiple first optical modules 11 are located on a circular trajectory with the center C of the surgical field area as the center.

[0072] In one embodiment, a lighting module 10 has two first optical modules 11, such as Fig. 9 It is a schematic diagram showing the irradiation of the light S and the light spot distribution of the first optical module 11 of the lighting module 10 when the preset distance is D=1000mm.

[0073] like Fig.10 It is a light spot formed by superimposing on the surgical field area in the illumination module 10, wherein the center of the first circular light spot 21a is located at the center C of the surgical field area. Figure 1 As shown, the lighting device 1 includes five lighting modules 10 distributed at equal angles along the same circular trajectory, and the first illumination unit 21 in the first optical module 11 faces the center of the arc.

[0074] like Fig.11 The figure shows a schematic diagram of the superposition of three light spots formed by the first optical module 11 of the lighting device 1 in the surgical field area. The first optical module 11 in the lighting device 1 forms a superposition effect of three light spots in the surgical field area, forming three superimposed light spots with diameters of D1, D2 and D3. The types of superimposed light spots are rich, so that the superimposed light spots are clearly displayed when the lighting device 1 illuminates the surgical field area. The size of the superimposed light spots can be adjusted by controlling the intensities of the three superimposed light spots.

[0075] It should be understood that there may be multiple first optical modules 11 on a lighting module 10, and it is not limited to only two first optical modules 11 on a lighting module 10 in the present embodiment. The number of lighting modules 10 is also not limited to 5. Those skilled in the art can select the appropriate number of lighting modules 10 according to the actual application scenario.

[0076] Furthermore, the centers of the circular light spots formed by the second optical module 12 and the third optical module 13 in the surgical field are on the same straight line.

[0077] The centers of the circular light spots formed by the second optical module 12 and the third optical module 13 on the surgical field may overlap or not overlap.

[0078] Furthermore, the centers of the first circular light spots 21 a corresponding to the plurality of second optical modules 12 and the plurality of third optical modules 13 overlap.

[0079] In one embodiment, a lighting module 10 has a second optical module 12, a third optical module 13 and two first optical modules 11. Fig.12The figure shows a schematic diagram of the light S irradiation on the light emitting surface D=1000mm of the second optical module 12 and the third optical module 13 in the lighting module 10. The first circular light spot 21a of the second optical module 12 and the third optical module 13 on the surgical field area overlaps, the second circular light spot 22a overlaps, and the third circular light spot 23a also overlaps.

[0080] Fig.13 It is a light spot superimposed on the surgical field area in the lighting module 10, wherein the centers of the second circular light spot 22a and the third circular light spot 23a formed by the second optical module 12 and the third optical module 13 on the surgical field area overlap with the center of the first circular light spot 21a of the first optical module 11.

[0081] like Figure 1 As shown, the first illumination unit 21 in the first optical module 11 is arranged toward the center of the arc, the first illumination unit 21 in the second optical module 12 is arranged away from the center of the arc, and the first illumination unit 21 in the third optical module 13 is arranged away from the center of the arc. The first optical module 11 adopts a setting direction different from that of the second optical module 12 and the third optical module 13, thereby avoiding the problem of limited illumination range and brightness of the light spot formed after multiple optical modules are arrayed in a uniform setting direction.

[0082] like Fig.14 As shown, Fig.14 This is a schematic diagram of the superposition of three light spots formed by the second optical module 12 and the third optical module 13 of the lighting device 1 in the surgical field area. The second optical module 12 and the third optical module 13 in the lighting device 1 form a superposition effect of three light spots in the surgical field area, forming three superimposed light spots with diameters of D4, D5 and D6, which can further evenly superimpose the light spot formed by the first optical module 11 in the surgical field area, thereby improving the clarity of the lighting of the surgical field area by the lighting device 1.

[0083] like Fig.15 This is a schematic diagram of the superposition of light spots formed by the first optical module 11, the second optical module 12 and the third optical module 13 in the lighting device 1 on the surgical field area. The lighting device 1 designed in this way can form six superimposed light spots with diameters of D1, D2, D3, D4, D5 and D6. By controlling the light intensity ratio of the six superimposed light spots, the size of the overall light spot on the surgical field area can be adjusted, and the illumination of the six superimposed light spots can also be adjusted to meet the lighting requirements of the surgical field area in different application scenarios.

[0084] It should be noted that D1, D2, D3, D4, D5 and D6 are only used to identify the different sizes of the superimposed light spots and there is no specific numerical limit.

[0085] In addition, the first optical module 11 and the second optical module 12 may be arrayed at equal angles on the same arc, or may be arrayed at equal angles on different arcs with the same center.

[0086] Furthermore, at least three lighting modules 10 are distributed at equal angles along the same circular track in the lighting device 1 .

[0087] The specific number of lighting modules 10 can be set according to actual conditions, but the number of lighting modules 10 is at least three, so that the lighting device 1 can illuminate the surgical field area to form a sufficiently clear light spot. As the number of lighting modules 10 increases, the light spots formed by the lighting device 1 on the surgical field area have more shapes and richer types, which can meet more illumination needs.

[0088] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lighting device, characterized in that: Includes multiple lighting modules; Each of the illumination modules includes a plurality of optical modules, each of the optical modules includes N integrated illumination units, N is a natural number and N≥3, each of the illumination units forms a one-to-one corresponding circular light spot on a surgical field area at a preset distance from a light-emitting surface, and among the N circular light spots formed by any one of the optical modules, two of the circular light spots at least partially overlap; The optical module is a plurality of first optical modules, at least one second optical module and at least one third optical module; in the same illumination module, the first optical modules and the second optical modules are arranged at equal angles on the arc; on the outer arc track of each second optical module, the third optical module and the second optical module are arranged in an equal angle array; wherein the circular light spots of any adjacent first optical module and second optical module, the adjacent second optical module and third optical module, and the adjacent two first optical modules are at least partially overlapped to form a light spot pattern on the surgical field area; The illumination modules are distributed at equal angles along the same circular trajectory, so that the light spot patterns are arranged in an equal angle array on the surgical field region with the center of the surgical field region as the center of the circle, and adjacent light spot patterns at least partially overlap.

2. The lighting device according to claim 1, characterized in that: The first optical module, the second optical module and the third optical module each include a first illumination unit, a second illumination unit and a third illumination unit formed in one piece; The light emitting surfaces of the first light unit, the second light unit and the third light unit are located in the same plane, and the distance from the center of the first light unit to the center of the second light unit is equal to the distance from the first light unit to the center of the third light unit.

3. The lighting device according to claim 2, characterized in that: The first illumination unit, the second illumination unit and the third illumination unit are used to form a first circular light spot, a second circular light spot and a third circular light spot on the surgical field area respectively; The centers of the first circular light spot, the second circular light spot and the third circular light spot are on the same straight line.

4. The lighting device according to claim 3, characterized in that: The centers of the second circular light spot and the third circular light spot overlap.

5. The lighting device according to claim 3, characterized in that: The second circular light spot and the third circular light spot have different diameters.

6. The lighting device according to claim 5, characterized in that: A light-transmitting plate is disposed on the second illumination unit and / or the third illumination unit, and a surface of the light-transmitting plate has uniform protrusions. The light-transmitting plate is used to adjust the diameter of the light spot so that the diameters of the second circular light spot and the third circular light spot are different.

7. The lighting device according to any one of claims 3 to 6, characterized in that: The centers of the multiple first circular light spots corresponding to the multiple first optical modules are located at the center of the surgical field area, and the centers of the multiple second circular light spots corresponding to the multiple first optical modules and the centers of the multiple third circular light spots are located on a circular trajectory with the center of the surgical field area as the center.

8. The lighting device according to any one of claims 3 to 6, characterized in that: The centers of the circular light spots formed by the second optical module and the third optical module in the surgical field are on the same straight line.

9. The lighting device according to claim 8, characterized in that: The centers of the first circular light spots corresponding to the plurality of second optical modules and the plurality of third optical modules overlap.

10. The lighting device according to claim 1, characterized in that: The lighting device has at least three lighting modules distributed at equal angles along the same circular track.

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