Operation shadowless lamp

Abstract

According to the operation shadowless lamp provided by the utility model, the first illumination system forms a first illumination light spot with uniform illumination distribution on an operation field area by providing a plurality of optical modules which are uniformly distributed, and the size and the illumination of a first circular light spot, a second circular light spot and a third circular light spot which form the first illumination light spot are adjusted, so that the operation field area is enlarged; various first illumination light spots can be provided, so that the visual fatigue of an operator is relieved; a second illumination light spot formed by the second illumination system increases the illumination area on the operation field area, the illumination intensity of the second illumination light spot is smaller than that of the first illumination light spot, environment illumination can be provided, and the visual fatigue of the operation personnel is further relieved; the color temperature and / or wavelength of a third illumination light spot formed by the third illumination system is different from the color temperature and / or wavelength of the first illumination light spot and the second illumination light spot, by setting the color temperature and / or wavelength of the third illumination light spot, eyestrain of an operator can be relieved, and the system is suitable for various operation environments such as non-external wound operations or cavity operations.

Description

Technical Field

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

[0002] A 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 focused during surgery. Traditional shadowless lamps are often designed with only a conventional surgical field light spot function, which can only provide a high-brightness light spot in the center of the surgical field, and the high-brightness light spot has a single color and a single shape. Staring at a high-brightness light spot with a single color and shape for a long time will cause eye fatigue to the surgeon, reduce the surgeon's attention, and reduce work efficiency. Utility Model Content

[0003] The technical purpose of the utility model is to provide a surgical shadowless lamp, aiming to solve the problem of a single surgical field light spot formed by a surgical shadowless lamp on the surgical field area in the related technology.

[0004] In order to solve the above technical problems, the utility model is implemented as follows: a surgical shadowless lamp comprises a first lighting system;

[0005] The first lighting system comprises a plurality of optical modules, and the optical modules are arranged at equal angles on the same circumference;

[0006] The optical module includes an integrally formed first illumination unit, a second illumination unit and a third illumination unit, wherein the first illumination unit, the second illumination unit and the third illumination unit respectively form a corresponding first circular light spot, a second circular light spot and a third circular light spot on a surgical field area at a preset distance from a light emitting surface;

[0007] The center of the first circular light spot formed by the plurality of optical modules coincides with the center of the surgical field area, the second circular light spot and the third circular light spot have different radii and are arranged at equal angles around the center of the surgical field area, adjacent second circular light spots and third circular light spots partially overlap, and each of the first circular light spots, each of the second circular light spots and each of the third circular light spots overlap to form a first illumination light spot;

[0008] The surgical shadowless lamp further comprises a second lighting system and / or a third lighting system;

[0009] The second illumination system forms a second illumination spot on the surgical field area at a preset distance from the light emitting surface, the illumination of the second illumination spot is less than the illumination of the first illumination spot, the first illumination spot is within the outer edge range of the second illumination spot, and the outer edge of the first illumination spot is connected to the second illumination spot, and the second illumination spot is used to expand the illumination range of the first illumination spot;

[0010] The third illumination system forms a third illumination spot on the surgical field area at a preset distance from the light-emitting surface, and the color temperature and / or wavelength of the third illumination spot are different from those of the first illumination spot and the second illumination spot.

[0011] Furthermore, the second illumination spot is ring-shaped with the center of the surgical field area as the center of the circle, and the radius of the first illumination spot is larger than the inner diameter of the second illumination spot and smaller than the outer diameter of the second illumination spot.

[0012] Furthermore, the radius of the first illumination spot is 30% to 60% of the outer diameter of the second illumination spot.

[0013] Furthermore, the illumination of the second illumination spot is 0.5% to 1% of the illumination of the first illumination spot.

[0014] Furthermore, the illumination of the first illumination spot is 40,000 lux to 160,000 lux.

[0015] Furthermore, the second lighting system includes at least one first lens module, and the first lens module includes at least two first TIR lenses; the first lens module is arranged between two adjacent optical modules.

[0016] Furthermore, the third illumination spot is circular and the center of the circle overlaps with the center of the surgical field area.

[0017] Furthermore, the third lighting system includes at least one second lens module, and the second lens module includes at least two second TIR lenses; the second lens module is arranged between two adjacent optical modules.

[0018] Furthermore, light emitting surfaces of the first illumination unit, the second illumination unit and the third illumination unit are located in the same plane, and a distance from a center of the first illumination unit to a center of the second illumination unit is equal to a distance from the first illumination unit to a center of the third illumination unit.

[0019] Further, the second circular light spot and the third circular light spot have different radii; and the first circular light spot intersects with the second circular light spot and the third circular light spot.

[0020] Compared with the prior art, the surgical shadowless lamp in the utility model has the following beneficial effects:

[0021] The first illumination system forms a first illumination spot with uniform illumination distribution in the surgical field by providing a plurality of uniformly distributed optical modules. By adjusting the sizes and illuminations of the first circular spot, the second circular spot and the third circular spot constituting the first illumination spot, a variety of first illumination spots can be provided, thereby alleviating the visual fatigue of the surgeon during the operation.

[0022] The second illumination spot formed by the second illumination system increases the illumination area on the surgical field. The illumination of the second illumination spot is less than that of the first illumination spot, and can provide ambient lighting, further reducing the visual fatigue of the surgical staff.

[0023] The color temperature and / or wavelength of the third illumination spot formed by the third illumination system are different from those of the first illumination spot and the second illumination spot. By setting the color temperature and / or wavelength of the third illumination spot, the eyestrain of surgeons can be alleviated. The system is suitable for various surgical environments such as non-invasive surgery or cavity surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the surgical shadowless lamp in the embodiment of the utility model;

[0025] Figure 2 It is a schematic diagram of light irradiation and light spot distribution when the preset distance from the optical module to the surgical field area is D=1000mm in the embodiment of the utility model;

[0026] Figure 3 Schematic diagram of the first illumination spot and the second illumination spot in the embodiment of the utility model;

[0027] Figure 4 It is the second illumination spot diagram in the embodiment of the utility model;

[0028] Figure 5 This is a graph showing the illumination distribution curve of the second illumination spot in the embodiment of the utility model;

[0029] Figure 6 is an illumination distribution curve diagram of the first illumination spot and the second illumination spot in the embodiment of the utility model;

[0030] Figure 7 It is a structural schematic diagram of the first lens module in an embodiment of the utility model;

[0031] Figure 8 It is a schematic diagram of the superposition of light spots formed by the first illumination system on the surgical field area in the embodiment of the utility model.

[0032] In the accompanying drawings, each reference numeral represents:

[0033] 1. First lighting system; 11. First lighting unit; 12. Second lighting unit; 13. Third lighting unit; 10a. First lighting spot; 11a. First circular spot; 12a. Second circular spot; 13a. Third circular spot;

[0034] 2. Second illumination system; 20a. Second illumination spot; 20. First lens module; 21. First TIR lens;

[0035] 3. A third lighting system; 30. A second lens module;

[0036] C, center of surgical field; S, light. DETAILED DESCRIPTION

[0037] 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.

[0038] 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.

[0039] 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.

[0040] Example:

[0041] See also Figures 1 to 8 , a surgical shadowless lamp, comprising a first lighting system 1;

[0042] The first lighting system 1 comprises a plurality of optical modules, and the optical modules are arranged in equal angles on the same circumference;

[0043] The optical module includes an integrally formed first illumination unit 11, a second illumination unit 12 and a third illumination unit 13, and the first illumination unit 11, the second illumination unit 12 and the third illumination unit 13 respectively form corresponding first circular light spots 11a, second circular light spots 12a and third circular light spots 13a on the surgical field area at a preset distance from the light emitting surface;

[0044] The center of the first circular light spot 11a formed by the multiple optical modules coincides with the center of the surgical field area, the second circular light spot 12a and the third circular light spot 13a have different radii and are arranged at equal angles around the center of the surgical field area, the adjacent second circular light spots 12a and the third circular light spots 13a partially overlap, and each first circular light spot 11a, each second circular light spot 12a and each third circular light spot 13a overlap to form a first illumination light spot 10a;

[0045] The surgical shadowless lamp further comprises a second lighting system 2 and / or a third lighting system 3;

[0046] The second illumination system 2 forms a second illumination spot 20a on the surgical field area at a preset distance from the light emitting surface. The illumination of the second illumination spot 20a is less than that of the first illumination spot 10a. The first illumination spot 10a is within the outer edge range of the second illumination spot 20a, and the outer edge of the first illumination spot 10a is connected to the second illumination spot 20a. The second illumination spot 20a is used to expand the illumination range of the first illumination spot 10a.

[0047] The third illumination system 3 forms a third illumination spot on the surgical field area at a preset distance from the light emitting surface, and the color temperature and / or wavelength of the third illumination spot are different from those of the first illumination spot 10a and the second illumination spot 20a.

[0048] In this embodiment, the first lighting system 1 forms a first lighting spot 10a with uniform light distribution in the surgical field area by providing a plurality of evenly distributed optical modules. By adjusting the size and illumination of the first circular spot 11a, the second circular spot 12a and the third circular spot 13a constituting the first lighting spot 10a, a variety of first lighting spots 10a can be provided, thereby alleviating the visual fatigue of surgical personnel during surgery.

[0049] Specifically, Figure 2As shown, a rectangular coordinate system is established with the irradiation surfaces (i.e., the plane where the surgical field area is located) of the first illumination unit 11, the second illumination unit 12, and the third illumination unit 13 of the optical module as a reference, the preset distance between the first illumination unit 11, the second illumination unit 12, and the third illumination unit 13 is D=1000mm, and the first circular light spot 11a, the second circular light spot 12a, and the third circular light spot 13a formed by the optical module are located on the irradiation surface.

[0050] With the perpendicular bisector passing through the center point of the second circular light spot 12a and the first circular light spot 11a and the second circular light spot 12a as the x-axis of the rectangular coordinate system, and the line connecting the center point of the first circular light spot 11a and the center point of the second circular light spot 12a as the y-axis of the rectangular coordinate system, the center point coordinates of the first circular light spot 11a are (0, d1), the center point coordinates of the second circular light spot 12a are (0, 0), and the center point coordinates of the third circular light spot 13a are (0, 0).

[0051] The second illumination spot 20a formed by the second illumination system 2 increases the illumination area on the surgical field. The illumination of the second illumination spot 20a is less than that of the first illumination spot 10a, and can provide ambient lighting to further reduce visual fatigue of surgical personnel.

[0052] The second illumination system 2 is an auxiliary system of the first illumination system 1, and the second illumination system 2 is selectively used by the surgical staff. The outer edge of the first illumination spot 10a and the second illumination spot 20a can be connected in a variety of ways: the second illumination spot 20a is circular, and the second illumination spot 20a can completely overlap with the first illumination spot 10a; or the second illumination spot 20a is an irregular shape with a ring or a central hole, the second illumination spot 20a is located at the periphery of the first illumination spot 10a, and the first illumination spot 10a and the second illumination spot 20a overlap at their adjacent portions, and the second illumination spot 20a and the first illumination spot 10a have a smooth transition; or the second illumination spot 20a is annular, the second illumination spot 20a is located at the periphery of the first illumination spot 10a, and the outer edge of the first illumination spot 10a is adjacent to the second illumination spot 20a, but does not overlap.

[0053] The color temperature and / or wavelength of the third illumination spot formed by the third illumination system 3 are different from those of the first illumination spot 10a and the second illumination spot 20a. By setting the color temperature and / or wavelength of the third illumination spot, the eyestrain of the surgeons can be alleviated, and the surgeon is suitable for various surgical environments such as non-invasive surgery or cavity surgery.

[0054] Furthermore, if Figure 3 As shown, the second illumination spot 20a is annular with the center of the surgical field area as the center of the circle, and the radius of the first illumination spot 10a is larger than the inner diameter of the second illumination spot 20a and smaller than the outer diameter of the second illumination spot 20a.

[0055] The second illumination spot 20a formed by the second illumination system 2 increases the illumination area on the surgical field. The inner diameter of the second illumination spot 20a is smaller than the inner diameter of the first illumination spot 10a, so that the first illumination spot 10a and the second illumination spot 20a can transition evenly, further reducing the visual fatigue of the surgeon.

[0056] Furthermore, the radius of the first illumination spot 10a is 30% to 60% of the outer diameter of the second illumination spot 20a.

[0057] Specifically, Figure 6 As shown, in some embodiments, the radius of the first illumination spot 10a10a is about 300 mm, and the outer diameter of the second illumination spot 20a is about 800 mm. The first illumination spot 10a and the second illumination spot 20a are evenly transitioned, and have a good illumination effect.

[0058] Furthermore, the illumination of the second illumination spot 20a is 0.5% to 1% of the illumination of the first illumination spot 10a.

[0059] like Figure 6 As shown, Figure 6 : is an illumination distribution curve diagram of the first illumination spot 10a and the second illumination spot 20a. In the diagram, the x-axis is the distance from any point on the first illumination spot 10a to the center of the surgical field area, x=0 represents that the distance from the first illumination spot 10a to the center of the surgical field area is 0, and the center of the first illumination spot 10a is located at x=0; the y-axis is the percentage of the illumination of any point on the surgical field area to the maximum illumination of the first illumination spot 10a, the curve f1 is the illumination distribution curve of the first illumination spot 10a, and the curve f2 is the illumination distribution curve of the second illumination spot 20a;

[0060] (0, 1.0) on the curve f1 indicates that the illumination percentage of the first illumination spot 10a in the center of the surgical field is 100%. In the curve f1, when x = (-300, 0], the y value continues to increase, and the slope of the curve f is positive. When x = [0, 300], the y value continues to decrease, and the slope of the curve f is negative. The illumination of the first illumination spot 10a gradually decreases as it moves away from the center of the surgical field in the radial direction, forming a first illumination spot 10a with the highest illumination in the center of the surgical field and gradually decreasing illumination as it spreads outward from the center of the surgical field, providing a small area of ​​bright illumination in the surgical field.

[0061] The maximum y value of the curve f2 is 0.1, which means that the percentage of the illumination of the second illumination spot 20a on the surgical field area to the maximum illumination of the first illumination spot 10a is 10%. The second illumination spot 20a and the first illumination spot 10a10a partially overlap, so that the edge of the first illumination spot 10a transitions to the second illumination spot 20a more smoothly, thereby expanding the illumination range of the first illumination spot 10a. The illumination of the second illumination spot 20a is relatively low, and can provide the surgical field area with a larger spot and low illumination ambient lighting, thereby effectively alleviating the visual fatigue of surgical personnel.

[0062] Furthermore, the illumination of the first illumination spot 10a is 40,000 lux to 160,000 lux.

[0063] The first illumination spot 10a forms a main light spot on the surgical field area, providing the main illumination of the surgical field area. The illumination of the first illumination spot 10a is between 40,000 lux and 160,000 lux. The second illumination system 2 forms a second illumination spot 20a on the surgical field area. The second illumination spot 20a is a non-compliant surgical field light spot in the shape of a ring, such as Figure 4 and 5 As shown, Figure 4 is a second illumination spot 20a, Figure 5 Figure 2 is the illuminance distribution curve of the second illumination spot 20a. It can be seen that the maximum illuminance of the second illumination spot 20a is between 1500 lux and 1700 lux. The illuminance range of 1500 lux to 1700 lux is relatively comfortable for the human eye and is usually suitable for indoor environments that require brightness, comfort and strong functionality. The illuminance of the second illumination spot 20a is within the range of 1500 lux to 1700 lux, which can provide comfortable auxiliary lighting for surgical personnel and help relieve visual fatigue of surgical personnel.

[0064] Furthermore, the second illumination system 2 includes at least one first lens module 20, and the first lens module 20 includes at least two first TIR lenses 21; the first lens module 20 is disposed between two adjacent optical modules.

[0065] like Figure 1 As shown, in the same first lens module 20, each first TIR lens 21 is distributed along the radial tangent of the circumference of the equiangular array of each second optical module.

[0066] In other embodiments, each first TIR lens 21 can be distributed radially along the circumference of the equiangular array of each second optical module, and each first TIR lens 21 can also be arranged through other geometric relationships, as long as the second illumination system 2 can form a circular second illumination spot 20a whose center overlaps with the center of the surgical field area.

[0067] Specifically, Figure 7As shown, the first TIR lens 21 is a scale lens, and the two first TIR lenses 21 are integrally formed, which can achieve a hollow spot effect and obtain a ring-shaped second illumination spot 20a. It should be noted that the utility model does not limit the number of TIR lenses in the same first lens module 20. In practical applications, an appropriate number of first TIR lenses 21 can be selected according to the size of the second illumination spot 20a to be formed and the desired hollow spot effect.

[0068] Furthermore, the third illumination spot is circular and the center of the circle overlaps with the center of the surgical field area.

[0069] The center of the first illumination spot 10a is located at the center of the surgical field area, and the center of the second illumination spot 20a is also located at the center of the surgical field area. When the first illumination system 1 and the second illumination system 2 are turned on at the same time, the first illumination spot 10a and the second illumination spot 20a can be evenly superimposed, and the second illumination spot 20a can provide ambient lighting.

[0070] The diameter of the second illumination spot 20a is greater than or equal to the diameter of the first illumination spot 10a. Specifically, the diameter of the first illumination spot 10a10a is 600 mm to 700 mm; the diameter of the second illumination spot 20a20a is 600 mm to 800 mm.

[0071] Furthermore, the third illumination system 3 includes at least one second lens module 30, and the second lens module 30 includes at least two second TIR lenses; the second lens module 30 is disposed between two adjacent optical modules.

[0072] In the second lens module 30 , two second TIR lenses are integrally formed. Specifically, the two second TIR lenses in the second lens module 30 are radially spaced apart along the circumference of the optical module array in the first lighting system 1 .

[0073] The second TIR lens and the first TIR lens 21 are both scaly lenses, but the second TIR lens has a different structure from the first TIR lens 21. The second TIR lens forms a solid circular light spot in the surgical field area to provide ambient lighting during non-external incision surgery and intracavitary surgery through the point light source in the second TIR lens. It can be applied to a variety of surgeries and alleviate the visual fatigue of medical staff during surgery.

[0074] Furthermore, the light emitting surfaces of the first illumination unit 11 , the second illumination unit 12 and the third illumination unit 13 are located in the same plane, and the distance from the center of the first illumination unit 11 to the center of the second illumination unit 12 is equal to the distance from the first illumination unit 11 to the center of the third illumination unit 13 .

[0075] Each optical module integrates the first illumination unit 11, the second illumination unit 12 and the third illumination unit 13 into one, and a geometric distribution relationship is preset. During the production and assembly of the surgical lamp, there is no need to debug the optical axes and deflection angles of the separate first illumination unit 11, the second illumination unit 12 and the third illumination unit 13, thereby improving the production efficiency of the surgical lamp.

[0076] like Figure 1 As shown, specifically, the first illumination units 11 in each optical module are arranged in an array on the same circumference, each second illumination unit 12 and each third illumination unit 13 are outside the circumference of the array of the first illumination units 11, and the perpendicular bisectors of the second illumination units 12 and the third illumination units 13 are radially arranged along the circumference of the array of the first illumination units 11.

[0077] Further, the second circular light spot 12a and the third circular light spot 13a have different radii; the first circular light spot 11a intersects with the second circular light spot 12a and the third circular light spot 13a.

[0078] like Figure 8 As shown in the figure, it is a schematic diagram of the superposition of three light spots formed by the optical module of the lighting device in the surgical field area. The optical module in the lighting device forms three light spot superposition effects 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 illuminates the surgical field area. By adjusting the size and illumination of the first circular light spot 11a, the second circular light spot 12a and the third circular light spot 13a in the surgical lamp, the size adjustment of the superimposed light spot can be achieved.

[0079] It should be known that the diameters of the first circular light spot 11a, the second circular light spot 12a and the third circular light spot 13a can be adjusted, and the size ratios of the first circular light spot 11a, the second circular light spot 12a and the third circular light spot 13a can be set by assembling different types of light-transmitting plates on the first illumination unit 11, the second illumination unit 12 and the third illumination unit 13. For example, if a light-transmitting plate with a uniformly concave and convex surface is provided on the third illumination unit 13, the light S emitted from the third illumination unit 13 will diffuse or gather, so that the diameter of the third circular light spot 13a is larger or smaller than the first circular light spot 11a.

[0080] 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 surgical shadowless lamp, characterized in that: including a first lighting system; The first lighting system comprises a plurality of optical modules, and the optical modules are arranged at equal angles on the same circumference; The optical module includes an integrally formed first illumination unit, a second illumination unit and a third illumination unit, wherein the first illumination unit, the second illumination unit and the third illumination unit respectively form a corresponding first circular light spot, a second circular light spot and a third circular light spot on a surgical field area at a preset distance from a light emitting surface; The center of the first circular light spot formed by the plurality of optical modules coincides with the center of the surgical field area, the second circular light spot and the third circular light spot have different radii and are arranged at equal angles around the center of the surgical field area, adjacent second circular light spots and third circular light spots partially overlap, and each of the first circular light spots, each of the second circular light spots and each of the third circular light spots overlap to form a first illumination light spot; The surgical shadowless lamp further comprises a second lighting system and / or a third lighting system; The second illumination system forms a second illumination spot on the surgical field area at a preset distance from the light emitting surface, the illumination of the second illumination spot is less than the illumination of the first illumination spot, the first illumination spot is within the outer edge range of the second illumination spot, and the outer edge of the first illumination spot is connected to the second illumination spot, and the second illumination spot is used to expand the illumination range of the first illumination spot; The third illumination system forms a third illumination spot on the surgical field area at a preset distance from the light-emitting surface, and the color temperature and / or wavelength of the third illumination spot are different from those of the first illumination spot and the second illumination spot.

2. The surgical shadowless lamp according to claim 1, characterized in that: The second illumination spot is ring-shaped with the center of the surgical field area as the center of the circle, and the radius of the first illumination spot is larger than the inner diameter of the second illumination spot and smaller than the outer diameter of the second illumination spot.

3. The surgical shadowless lamp according to claim 2, characterized in that: The radius of the first illumination spot is 30% to 60% of the outer diameter of the second illumination spot.

4. The surgical shadowless lamp according to claim 1, characterized in that: The illumination of the second illumination spot is 0.5% to 1% of the illumination of the first illumination spot.

5. The surgical shadowless lamp according to claim 4, characterized in that: The illumination of the first illumination spot is 40000 lux~160000 lux.

6. The surgical shadowless lamp according to claim 1, characterized in that: The second lighting system includes at least one first lens module, and the first lens module includes at least two first TIR lenses; the first lens module is arranged between two adjacent optical modules.

7. The surgical shadowless lamp according to claim 1, characterized in that: The third illumination spot is circular, and the center of the circle overlaps with the center of the surgical field area.

8. The surgical shadowless lamp according to claim 7, characterized in that: The third lighting system includes at least one second lens module, and the second lens module includes at least two second TIR lenses; the second lens module is arranged between two adjacent optical modules.

9. The surgical shadowless lamp according to claim 1, characterized in that: 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.

10. The surgical shadowless lamp according to claim 9, characterized in that: The second circular light spot and the third circular light spot have different radii; the first circular light spot intersects with the second circular light spot and the third circular light spot.

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