CN217209198U - Optical lens, lighting unit and lighting lamp - Google Patents

Abstract

The utility model provides an optical lens, lighting unit and illumination lamps and lanterns, optical lens cover are established on the lamp pearl of light source subassembly, including being used for acceping the chamber of lamp pearl with center on accept the periphery in chamber and be used for with the connection face that the light source subassembly is connected, be equipped with adaptation portion on the connection face, adaptation portion configuration is for adjusting lens with the relative distance of light source subassembly. The utility model discloses an optical lens sets up adaptation portion through the connection face at optical lens, configures adaptation portion into the relative distance of adjusting optical lens and light source subassembly, solves the unable problem that follows changes relative distance in order to provide the original light-emitting effect of same beam angle realization under the big small type of lamp pearl changes of current optical lens.

Description

Optical lens, lighting unit and lighting lamp

Technical Field

The utility model relates to an optical lens, lighting unit and illumination lamps and lanterns belongs to the lighting apparatus field.

Background

At present, LED lamps are widely used in various scenes as lighting devices, and a lens is a light distribution element in the LED lamp and is used for diffusing/converging light beams emitted by a lamp bead of the LED lamp.

In the existing lamp, one lens corresponds to one lamp bead, and the relative distance between the two and the angle of the beam angle which can be refracted by the lens are fixed. Once the type or size of lamp pearl has been changed, the corresponding lens just need change equally, otherwise original lens can't provide the desired beam angle in the design, can cause different light-emitting effect. Can be in the application of reality, lens have very long life-span, change less, and lamp pearl often can be because of all kinds of reasons need be changed, the lamp pearl of changing can have different brands unavoidably, the different grade type, the problem of equidimension, original lens cover is established on the different lamp pearls after the change, relative distance between the two still is original relative distance, the light-emitting beam angle at this moment changes along with the change of lamp pearl, different beam angle means different light-emitting effect, can't let lamps and lanterns realize original light-emitting effect.

In view of the above, it is necessary to provide a new optical lens, a lighting unit and a lighting fixture to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a new optical lens, lighting unit and illumination lamps and lanterns to solve current optical lens and can't follow the problem that changes relative distance in order to provide the original light-emitting effect of same beam angle realization under the big or small type of lamp pearl changes.

In order to achieve the above object, the utility model provides an optical lens, the cover is established on the lamp pearl of light source subassembly, including being used for acceping the lamp pearl accept the chamber with center on accept the periphery in chamber and be used for with the connection face of light source subassembly matched stack, be equipped with adaptation portion on connecting the face, adaptation portion configuration is to adjust lens with the relative distance of light source subassembly.

As a further improvement of the present invention, the adaptation portion includes from being close to the light source subassembly is to keeping away from first regulating part and the second regulating part that the direction of light source subassembly set gradually, first regulating part is in connect the orthographic projection area on the face to be less than the second regulating part is in connect the orthographic projection area on the face.

As a further improvement of the present invention, the cross-sectional area corresponding to any one of the fitting portions is inversely related to the distance between the any one of the fitting portions and the connecting surface.

As a further improvement of the present invention, the optical lens includes at least two of the fitting portions, at least two of the fitting portions are arranged along the circumferential direction at intervals on the connecting surface.

The utility model also provides a lighting unit, including light source subassembly and above-mentioned optical lens, the light source subassembly includes the light source board and establishes lamp pearl on the light source board, the optical lens cover is established on the lamp pearl, just optical lens's the connection face orientation the light source board sets up, be equipped with on the light source board with the adaptation portion corresponds the installation department that sets up, adaptation portion with the installation department cooperatees, so that for adjusting lens with the relative distance of light source subassembly.

As a further improvement of the utility model, the adaptation portion be to the arch that the light source board direction extends, the installation department be with the arch corresponds the mounting hole that sets up, protruding at least partial protruding entering and matched stack in the mounting hole.

As a further improvement, the arch includes from being close to the light source board is to keeping away from first boss and the second boss that the direction of light source board set gradually, first boss is in connect the orthographic projection area on the face and be less than the second boss is in connect the orthographic projection area on the face.

As a further improvement of the present invention, the cross-sectional area corresponding to any one of the mounting holes is inversely related to the any one of the mounting holes and the distance between the connecting surfaces.

The utility model also provides a lighting unit, including above-mentioned optical lens and light source subassembly, the light source subassembly includes the light source board and establishes lamp pearl on the light source board, the optical lens cover is established on the lamp pearl, just optical lens's the connection face orientation the light source board sets up, the light source board orientation one side of connecting the face is equipped with adaptation portion, adaptation portion configuration is for adjusting lens with the relative distance of light source subassembly.

As a further improvement of the present invention, the adaptation portion is a direction the arch of optical lens direction extension, the second installation portion be with the arch corresponds the mounting hole that sets up, protruding at least partial protruding entering and matched stack in the mounting hole.

The utility model also provides a lighting lamp, including foretell lighting unit.

The utility model has the advantages that: the utility model discloses an optical lens is through setting up adaptation portion at the connection face, configures adaptation portion into the relative distance of adjusting optical lens and light source subassembly, solves current optical lens and can't follow the problem that changes the relative distance in order to provide the original light-emitting effect of same beam angle realization under the big small type of lamp pearl changes. Through setting up adaptation portion on light source subassembly, reached same function and effect, solved current optical lens equally and then change relative distance under the condition of the big or small type that changes the lamp pearl and realize the problem of original light-emitting effect in order to provide the same beam angle.

Drawings

Fig. 1 is a perspective view of a lighting unit consistent with a preferred embodiment of the present application.

Fig. 2 is an exploded view of the lighting unit of fig. 1.

Fig. 3 is a cross-sectional view of the optical lens of fig. 2.

Fig. 4 is a partially enlarged view of the distance adjustment portion in fig. 3.

Fig. 5 is a top view of the light source assembly of fig. 2.

Fig. 6 is a cross-sectional view of a light source assembly consistent with the present application.

FIG. 7 is a schematic illustration of an installation consistent with an exemplary embodiment of the present application.

Fig. 8 is a partially enlarged view of fig. 7.

FIG. 9 is a schematic view of another installation consistent with an exemplary embodiment of the present application.

Fig. 10 is a partial enlarged view of fig. 9.

FIG. 11 is a schematic view of yet another installation consistent with exemplary embodiments of the present application.

Fig. 12 is a partial enlarged view of fig. 11.

Fig. 13 is a light distribution graph of fig. 7.

Fig. 14 is a light distribution graph of fig. 9.

Fig. 15 is a light distribution graph of fig. 11.

Fig. 16 is a cross-sectional view of a light source module consistent with an embodiment of the present application.

FIG. 17 is an exploded view of a lamp according to another embodiment of the present application.

Fig. 18 is a cross-sectional view of the light source assembly of fig. 17.

Description of reference numerals:

100-a lighting unit,

10-optical lens, 1-accommodating cavity, 2-connecting surface, 3-adapting part, 31-first regulating part, 32-second regulating part,

20-light source assembly, 201-light source plate, 202-lamp bead, 203-mounting part, 203 a-first mounting hole, 203 b-second mounting hole, 203' -mounting part,

200-a lighting unit,

4-a second mounting portion.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

The utility model discloses an optical lens 10 and lighting unit 100 who uses this optical lens 10. In general, as shown in fig. 1, in the present exemplary embodiment, an illumination unit 100 includes an optical lens 10 and a light source assembly 20. The light source assembly 20 has a light emitting member, such as an LED lamp bead, a COB lamp bead, or an SMD lamp bead. In the field of lighting devices, the present invention discloses a lighting unit 100, which can be used as a lamp alone, and can be combined with other conventional components to form a lamp, and a plurality of lighting units 100 can be assembled with each other according to a certain rule to form a lighting device. The other conventional components are not shown and described herein, which are limited by the space relationship.

As shown in fig. 2 and 3, the optical lens 10 of the present invention includes a cup-shaped central optical portion and an adapter portion 3 formed at the bottom of the central optical portion and arranged toward the direction of the bead. The central optical part is composed of a plurality of light incoming surfaces, light outgoing surfaces, reflection surfaces and the like, in the exemplary embodiment, the incident surfaces of the central optical part surround to form the containing cavity 1, and meanwhile, the connecting surface 2 is formed at the bottom of the central optical part and surrounds the containing cavity 1. The optical lens 10 covers a lamp bead 202 (fig. 5) of the light source assembly 20, and is configured to converge a light beam of the lamp bead 202 from the light incident surface and diffuse the light beam from the light emergent surface. The adaptation portion 3 of optical lens 10 is set up to the distance that can adjust between central optical portion and the lamp pearl, thereby makes the utility model discloses an optical lens 10 can be applicable to a plurality of not unidimensional luminous elements simultaneously to when using with the cooperation of a plurality of not unidimensional luminous elements, can provide the same beam angle.

The specific structure of the optical lens 10 and the lighting unit 100 using the same will be described in detail below with reference to a plurality of different embodiments of the present invention illustrated in fig. 4 to 15.

Fig. 3 to 8 show an optical lens 10 and an illumination unit 100 according to an embodiment of the present invention. The lamp bead 202 is accommodated in the accommodating chamber 1 of the optical lens 10, and the inner surface of the accommodating chamber 1 is an incident surface of the optical lens 10. In another embodiment of the present application, the surface of the housing cavity 1 away from the lamp bead 202 may further be provided with a convex lens for better converging the light beam from the lamp bead 202. The connecting surface 2 is circular and flat around the circumference of the containing cavity 1. An adapter part 3 is arranged on the connection surface 2. The adapting part 3, which may also be referred to as a distance adjusting structure, includes a first adjusting part 31 and a second adjusting part 32 that are sequentially disposed from a direction close to the light source assembly 20 to a direction away from the light source assembly 20, and an orthographic projection area of the first adjusting part 31 on the connection surface 2 is smaller than an orthographic projection area of the second adjusting part 32 on the connection surface 2. The first and second adjusting parts 31 and 32 having different orthographic projection areas may enable the adapting part 3 to conveniently adjust a plurality of different distances between the light source lens 10 and the light source assembly 20. In other words, the first adjusting part 31 and the second adjusting part 32 form a step shape, and the thicknesses of the first adjusting part 31 and the second adjusting part 32 can be varied according to the matched light source assembly 20 to adapt to application environments with different specifications. Therefore, the adapting portion 3 of the optical lens 10 of the present invention is configured to adjust the relative distance between the optical lens 10 and the light source assembly 20. The distance between the optical lens 10 and the light source assembly 20 is changed by changing the shape/size/thickness of the adapting part 3 without replacing the optical lens 10, so that the optical lens 10 can still provide the same beam angle when the type and size of the lamp bead 202 in the light source assembly 20 are changed. By adopting the design, the adaptability of the optical lens 10 is wider, the production cost is reduced, and the environmental resource is saved.

Referring to fig. 5 and 6 in combination with fig. 2, the light source assembly 20 includes a light source plate 201, a lamp bead 202, and a mounting portion 203. The light source board 201 may be a circuit board on which conventional electronic components are disposed. The light bead 202 is arranged at the center of the light source board 201, in one embodiment, one optical lens 10 is arranged corresponding to one light bead 202, but in other embodiments, one optical lens 10 can match a plurality of light beads 202. The optical lens 10 covers the lamp bead 202, and the connection surface 2 of the optical lens 10 faces and is supported on the light source board 201. The light source board 201 is provided with a mounting portion 203 at a position corresponding to the fitting portion 3, and the mounting portion 203 is used for matching connection with the fitting portion 3. During the application process, the relative distance between the optical lens 10 and the light source assembly 20 is adjusted by changing different coupling positions/states of the adapting part 3 and the mounting part 203. The utility model discloses an in the exemplary embodiment, installation department 203 is the mounting hole that sets up on the light source board 201, and adaptation portion 3 is the arch of extending to light source board 201 direction, and the arch is step form and just stretches into in the mounting hole at least partially, and the perisporium card with the mounting hole is held and is connected. Specifically, the step-shaped protrusion is a two-layer cylindrical protrusion including a first protrusion and a second protrusion, the first protrusion and the second protrusion are sequentially arranged from the direction close to the light source board 201 to the direction far away from the light source board 201, the first adjusting portion 31 corresponds to the first protrusion, the second adjusting portion 32 corresponds to the second protrusion, the first protrusion and the second protrusion are connected to each other and have the same central axis, and the first protrusion is closer to the light source board 201 than the second protrusion. The diameter of the first boss is smaller than that of the second boss, and the first boss and the second boss are an embodiment which meets the requirement that the orthographic projection area of the first adjusting part 31 on the connecting surface 2 is smaller than that of the second adjusting part 32 on the connecting surface 2. By changing the connection state between the first and second bosses and the mounting part 203, the relative distance of the optical lens 10 and the light source assembly 20 may be adjusted.

Meanwhile, the mounting portion 203 may correspond to a circular mounting hole including a first mounting hole 203a and a second mounting hole 203b, the diameter of the first mounting hole 203a is equal to the diameter of the first boss corresponding to the first adjusting portion 31, and the diameter of the second mounting hole 203b is equal to the diameter of the second boss corresponding to the second adjusting portion 33. The number of the first and second mounting holes 203a and 203b is the same as the number of the fitting parts 3, and in the exemplary embodiment, three first and second mounting holes 203a and 203b are provided, respectively, and are arranged at equal intervals of 120 ° in the circumferential direction around the lamp bead 202. In another exemplary embodiment, the mounting portion 203 is adapted to the number and shape of the fitting portions 3.

This will be explained in more detail below with reference to different embodiments.

Referring to fig. 7 and 8, in an installation situation of the exemplary embodiment, the optical lens 10 may be directly coated with an adhesive, such as glue, on the first adjusting part 31, so that the optical lens 10 may be directly adhered to the light source board 201. The distance between the optical lens 10 and the lamp bead 202 is the sum of the height of the optical lens 10 itself and the height of the first adjusting part 31 and the second adjusting part 32, and at this time, the optical lens 10 is farthest away from the lamp bead 202.

Referring to fig. 9 and 10, in another installation situation of the exemplary embodiment, the first adjustment portion 31 of the optical lens 10 is snapped into the first installation hole 203a and is connected with an adhesive to ensure the connection between the first adjustment portion 31 and the first installation hole 203 a. At this time, the distance between the lens 10 and the lamp bead 202 is the sum of the height of the optical lens 10 itself and the height of the second adjusting portion 32, and at this time, the distance between the optical lens 10 and the lamp bead 202 is medium.

Referring to fig. 11 and 12, in another installation situation of the exemplary embodiment, the second adjustment portion 32 of the optical lens 10 is snapped into the second installation hole 203b and is assisted by the adhesive, so as to ensure the firmness of the connection between the second adjustment portion 32 and the second installation hole 203 b. At this time, the distance between the lens 10 and the lamp bead 202 is the distance of the optical lens 10 itself, and in the installation situation, the optical lens 10 is closest to the lamp bead 202.

The first and second mounting holes 203a and 203b in the mounting portion 203 are provided on the light source board 201 at the same time in the present exemplary embodiment, but only one of them may be provided as needed, and is not limited herein.

Referring to fig. 13 to 15, fig. 13 is a light distribution graph of the installation manner shown in fig. 7, in which the diameter of the lamp bead 202 is 10mm, and the beam angle after passing through the optical lens 10 is 25 degrees; FIG. 14 is a light distribution diagram of the installation shown in FIG. 9, wherein the diameter of the lamp bead 202 is 8.5mm, and the beam angle after passing through the optical lens 10 is 25 degrees; fig. 15 is a light distribution diagram of the installation mode shown in fig. 11, in which the diameter of the lamp bead 202 is 7mm, and the beam angle after passing through the optical lens 10 is 24 degrees. Through the grading curve graph of three kinds of different mounting means of contrast, can see out when the lamp pearl 202 of the light emitting area that the installation size is unequal, through above-mentioned three kinds of different mounting means, under the condition that does not change lens 10, only change the distance between lens 10 and the lamp pearl 202, can obtain the beam angle of equidimension, realize not unidimensional light source subassembly 20 and the compatible matching of the lens 10 of this application, obtain same light-emitting effect to this can be compatible different types of illumination lamps and lanterns.

The corresponding cross-sectional area at any point on the adapter part 3 inversely relates to the distance separating the any point from the connection surface 2. That is, the closer the distance between any one of the fitting portions 3 and the connecting surface 2 is, the larger the corresponding sectional area is, and the farther the distance between the fitting portion 3 and the connecting surface 2 is, the smaller the corresponding sectional area is. So configured, the relative distance between the lens 10 and the light source assembly 20 can be changed more conveniently.

Referring to fig. 16, in another exemplary embodiment of the present application, the adapter portion 3 has a conical structure, and the conical angle of the adapter portion 3 is closer to the connecting surface 2 than the conical bottom. The adapter parts 3 are three in number, and are arranged on the connecting surface 2 at equal intervals of 120 degrees along the circumferential direction. The closer the distance between any one of the conical fitting parts 3 and the connecting surface 2 is, the larger the corresponding sectional area is, and the farther the distance between the corresponding fitting part and the connecting surface 2 is, the smaller the corresponding sectional area is.

In this exemplary embodiment, the mounting portion 203 'is a truncated cone-shaped hole provided corresponding to the conical fitting portion 3, and the cross-sectional area corresponding to any one of the mounting portions 203' inversely relates to the distance between the any one and the connection surface 2, that is, the cross-sectional area of a portion of the fitting portion 3 closer to the connection surface 2 is larger, and the diameter is larger because of the truncated cone shape, and the cross-sectional area of a portion farther from the connection surface 2 is smaller. A plurality of groups of truncated cone-shaped holes with different minimum diameters can be freely arranged around the lamp bead 202 of the light source assembly 20, all the holes are installation parts 203', the group inner hole interval of each group of holes is the same as the interval between the adaptation parts 3, and the group inner hole number of each group of holes is the same as or is a certain integral multiple of the number of the adaptation parts 3. The conical fitting portion 3 is inserted into the truncated cone-shaped mounting portion 203' and fixed when the diameter of the insertion portion is equal to the minimum diameter of the hole. The relative distance between the optical lens 10 and the lamp bead 202 can be varied by inserting the adapter 3 into the holes of the mounting portions 203' of different minimum diameters.

Under the condition that the structure and the type of the lens 10 do not need to be changed, the relative distance between the lens 10 and the lamp bead 202 can be changed by changing the thickness/size/shape of the adapting part 3 and the thickness/size/shape of the mounting part 203 matched with the adapting part on the light source assembly 20 and/or changing different mounting connection modes between the adapting part 3 and the light source assembly 20, different beam angles can be provided without changing the optical lens 10 and without changing the lamp bead 202, or the same beam angle can be provided through the optical lens 10 without changing the optical lens 10 and without changing the type and the size of the lamp bead 202, and the use is convenient.

Referring to fig. 17 and 18, in another embodiment of the present application, a lighting unit 200 is further provided, including an optical lens 10 and a light source assembly 20, the optical lens 10 includes an accommodating cavity 1, a connecting surface 2 and a second mounting portion 4, the light source assembly 20 includes a light source board 201 and a lamp bead 202 disposed on the light source board 201, the optical lens 10 is covered on the lamp bead 202, the connecting surface 2 of the optical lens 10 is disposed toward the light source board 201, an adapting portion 3 is disposed on one side of the light source board 201 toward the connecting surface 2, the connecting surface 2 is provided with the second mounting portion 4 corresponding to the adapting portion 3, the adapting portion 3 and the second mounting portion 4 are configured to adjust a relative distance between the optical lens 10 and the light source assembly 20, and the optical lens 10 is provided with the second mounting portion 4 corresponding to the adapting portion 3.

In this embodiment, the structures of the receiving cavity 1 and the connecting surface 2 of the optical lens 10 in the lighting unit 200, and the light source board 201 and the bead 202 of the light source assembly 20 are similar to those in the lighting unit 100, and are not described herein again, and the structures of the adapting part 3 and the second mounting part 4 in the lighting unit 200, and the structures of the adapting part 3 and the second mounting part 203 in the lighting unit 100 are also the same, except that the adapting part 3 in the lighting unit 200 is disposed on the light source board 201 of the light source assembly 20 instead of being disposed on the optical lens 10 in the lighting unit 100, and the second mounting part 4 disposed corresponding to the adapting part 3 is disposed on the optical lens 10 instead of being disposed on the mounting part 203 in the light source assembly 20 in the lighting unit 100. The adapting unit 3 sequentially provides the first adjusting part 31 and the second adjusting part 32 from a direction close to the light source assembly 20 to a direction away from the light source assembly 20 in the illumination unit 100, and sequentially provides the second adjusting part 32 and the first adjusting part 31 from a direction close to the light source assembly 20 to a direction away from the light source assembly 20 in the illumination unit 200. The installation and connection manner of the optical lens 10 and the light source assembly 20 in the illumination unit 200 through the adapter 3 and the second mounting portion 4 is similar to the installation and connection manner of the lens 10 and the light source assembly 20 in the illumination unit 100 through the adapter 3 and the mounting portion 203, and is not described herein again.

The lighting units 100 and 200 may be applied to lighting fixtures, such as down lamps and spot lamps, and in some embodiments, may also be applied to other types of lighting fixtures, such as ceiling lamps, panel lamps, and projection lamps, and the specific application of the types of the lighting fixtures is not limited.

To sum up, the utility model discloses a lighting unit 100 sets up adaptation portion 3 through connecting face 2 at optical lens 10, configures adaptation portion 3 into the relative distance of adjusting optical lens 10 and light source subassembly 20, solves current optical lens 10 and can not follow the problem that changes relative distance in order to provide the original light effect of same beam angle realization under the big or small type change's of lamp pearl 202 condition. Through set up adaptation portion 3 on light source subassembly 20 in lighting unit 200, reached same function and effect, solved current optical lens 10 equally and can't follow the problem that changes relative distance in order to provide the original light effect of light beam angle realization under the circumstances of changing the big or small type of lamp pearl 202. The same optical lens structure can be suitable for different lamp beads, so that the practicability is high, and materials are saved.

The above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present invention.

Claims (11)

1. An optical lens, which covers a lamp bead (202) of a light source assembly (20), characterized in that: including being used for acceping the chamber (1) of acceping of lamp pearl (202) and around accept the periphery of chamber (1) and be used for with connect face (2) of light source subassembly (20) matched stack, be equipped with adaptation portion (3) on connecting face (2), adaptation portion (3) are configured to the regulation lens (10) with the relative distance of light source subassembly (20).

2. The optical lens of claim 1, wherein: the adaptation portion (3) include from being close to light source subassembly (20) are to keeping away from first regulating part (31) and second regulating part (32) that the direction of light source subassembly (20) set gradually, first regulating part (31) is in orthographic projection area on connecting face (2) is less than second regulating part (32) is in orthographic projection area on connecting face (2).

3. The optical lens of claim 1, wherein: the corresponding cross-sectional area at any point on the adapting part (3) is inversely related to the spacing distance between the any point and the connecting surface (2).

4. The optical lens of claim 3, wherein: the optical lens (10) comprises at least two adapting parts (3), and the at least two adapting parts (3) are arranged on the connecting surface (2) at intervals along the circumferential direction.

5. A lighting unit, characterized by: optical lens (10) including light source subassembly (20) and according to any one of claims 1 ~ 4, light source subassembly (20) include light source board (201) and establish lamp pearl (202) on light source board (201), optical lens (10) cover is established on lamp pearl (202), just the connection face (2) orientation of optical lens (10) light source board (201) set up, be equipped with on light source board (201) with installation department (203) that adaptation portion (3) correspond the setting, adaptation portion (3) with installation department (203) cooperate so that adjust lens (10) with the relative distance of light source subassembly (20).

6. The lighting unit of claim 5, wherein: the adaptation portion (3) is to the arch that light source board (201) direction extended, installation department (203) be with the mounting hole that the arch corresponds the setting, protruding at least partial protruding entering and matched stack in the mounting hole.

7. The lighting unit of claim 6, wherein: the arch is including following to be close to light source board (201) is to keeping away from first boss and the second boss that the direction of light source board (201) set gradually, first boss is in connect the orthographic projection area on face (2) and be less than the second boss is in connect the orthographic projection area on face (2).

8. The lighting unit of claim 7, wherein: the corresponding cross-sectional area at any one position on the mounting hole is inversely related to the spacing distance between the any one position and the connecting surface (2).

9. A lighting unit, characterized by: including optical lens (10) and light source subassembly (20), light source subassembly (20) include light source board (201) and establish lamp pearl (202) on light source board (201), optical lens (10) cover is established on lamp pearl (202), just the connection face (2) orientation of optical lens (10) light source board (201) set up, light source board (201) orientation one side of connecting face (2) is equipped with adaptation portion (3), be equipped with on connecting face (2) with adaptation portion (3) correspond second installation department (4) that set up, adaptation portion (3) with second installation department (4) are configured to adjust lens (10) with the relative distance of light source subassembly (20).

10. The lighting unit of claim 9, wherein: the adaptation portion (3) is a protrusion extending towards the direction of the optical lens (10), the second installation portion (4) is an installation hole correspondingly arranged with the protrusion, and at least part of the protrusion enters and is assembled in the installation hole.

11. An illumination fixture, comprising: comprising a lighting unit as claimed in claim 5 or 9.

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