CN113932160A

CN113932160A - Optical unit, optical module and lamp

Info

Publication number: CN113932160A
Application number: CN202111282654.4A
Authority: CN
Inventors: 谯胜杰; 牛俊杰; 白坤; 张国宝
Original assignee: Opple Lighting Electrical Appliance Zhongshan Co Ltd
Current assignee: Opple Lighting Electrical Appliance Zhongshan Co Ltd
Priority date: 2021-11-01
Filing date: 2021-11-01
Publication date: 2022-01-14

Abstract

The invention provides an optical unit, an optical module and a lamp, wherein the optical unit at least comprises a first shell and a second shell which are arranged from outside to inside in a surrounding manner and connected, an annular first reflection groove is formed between the first shell and the second shell, the outer surface of the second shell and the inner surface of the first shell form a reflection surface of the first reflection groove, one end part of the first reflection groove is provided with a light inlet through which light rays are emitted into the first reflection groove, and the other end part, opposite to the first reflection groove, of the first reflection groove is provided with a light outlet through which the light rays are emitted. Through with optical unit integration in order replacing the lens module on same optical module, greatly reduced the manufacturing cost of lamps and lanterns, simultaneously, set up texture structure on the surface of the plane of reflection of reflecting groove, can increase the light sense effect for illumination is more even. In addition, additional reflecting grooves and light sources can be arranged in the optical unit to enhance the illumination effect.

Description

Optical unit, optical module and lamp

Technical Field

The invention relates to an optical unit, an optical module and a lamp, and belongs to the technical field of illumination.

Background

The projector is a lamp that specifies that the illuminance on the illuminated surface is higher than the surrounding environment, and is also called a spotlight. In general, it can be aimed in any direction and has a structure that is not affected by the climatic conditions. The projection lamp can be installed and used singly, and can also be assembled by a plurality of lamps to form a lighting device in a centralized way, and the advantage is that the lighting function is strong. When light is projected from a high place, the space brightness of the environment is high, the light coverage area is large, and therefore the lighting quality and the visual effect are high.

To further improve the light output ratio of the luminaire, lenses or reflectors are often provided at the light source, with the tendency for reflectors to be flat panel reflectors that facilitate reduced light blocking from the light source and multi-focal reflectors that meet specific lighting requirements. However, the cost of arranging a whole reflector or lens is high, the structure is complex, and the light efficiency of the traditional point light source array is low.

In view of the above, it is necessary to provide an optical unit, an optical module and a lamp to solve the above problems.

Disclosure of Invention

The invention aims to provide an optical unit, an optical module and a lamp, which can reduce the production cost.

In order to achieve the above object, the present invention provides an optical unit applied in a lamp, the optical unit at least includes a first casing and a second casing which are arranged from outside to inside in a surrounding manner and connected with each other, an annular first reflection groove is formed between the first casing and the second casing, a reflection surface of the first reflection groove is formed by an outer surface of the second casing and an inner surface of the first casing, a light inlet through which light rays enter the first reflection groove is formed at one end of the first reflection groove, and the light inlet is configured as: and the other end part opposite to the first reflecting groove is provided with a light outlet for light to emit.

As a further improvement of the present invention, the optical element further includes at least a third housing, and a space between the second housing and the third housing is formed with a second reflection groove.

As a further improvement of the present invention, a portion of the second casing is recessed from the light exit toward one side of the light entrance to form a cup structure, a surface of the cup structure forms a reflection surface, and one side of the cup structure, which is close to the light entrance, is provided with a light entrance hole for embedding the light emitting element therein.

As a further improvement of the present invention, the reflecting surface is formed with a texture structure for reflecting light.

As a further improvement of the present invention, the texture structure includes a plurality of protrusions arranged along the circumferential direction, and each of the protrusions extends from the light inlet toward the light outlet.

As a further improvement of the present invention, the texture structure includes a plurality of protrusions arranged along the light inlet toward one side of the light outlet, and each of the protrusions extends along the circumferential direction and is annular.

As a further improvement of the invention, the shape of the bulge is a sawtooth shape, a circular arc shape, a point shape or a fish scale shape.

As a further improvement of the present invention, the reflecting surface is a free-form surface.

As a further improvement of the invention, the free-form surface comprises one or more of a spherical surface, an ellipsoid, a paraboloid and a hyperboloid.

As a further improvement of the present invention, the first housing, the second housing, and the third housing are connected by a connecting rib, and the connecting rib and the light entrance are located on the same end surface of the optical unit.

As a further improvement of the present invention, the first housing, the second housing and the third housing are made by a reflective film hot molding process.

In order to achieve the above object, the present invention further provides an optical module, which is applied in a lamp, and includes the optical unit as described above, and a plurality of the optical units are integrally formed and uniformly arranged along the transverse direction and the longitudinal direction, respectively.

As a further improvement of the present invention, a plurality of the optical units are integrally formed on one substrate.

In order to achieve the above object, the present invention further provides a lamp, wherein the optical unit is arranged in the lamp.

As a further improvement of the present invention, the lamp includes a lamp housing, a light-transmitting cover, and a light source assembly, wherein one side of the lamp housing is an open structure, the light-transmitting cover is combined with the open structure, the light source assembly is disposed in an optical space enclosed by the lamp housing and the light-transmitting cover, and a sealing structure is disposed between the lamp housing and the light-transmitting cover.

As a further improvement of the present invention, the sealing structure includes at least one sealing groove which is provided on the outer edge of the lamp housing and extends along the circumferential direction, and a glue layer which is filled in the sealing groove or a sealing ring which is embedded in the sealing groove.

As a further improvement of the present invention, the lamp housing is provided with a reinforcing rib, and the reinforcing rib is arranged around the outer peripheral side of the light source assembly.

As a further improvement of the present invention, the light source assembly includes a light source board, and a plurality of light emitting elements disposed on the light source board, and the optical unit and the light source board are connected by a snap connection, a screw connection, or an adhesive connection.

The invention has the beneficial effects that: the optical unit provided by the invention is provided with the annular reflecting groove, the annular light source can be reflected, the optical unit is integrated on the same optical module to replace a lens module, the production cost of the lamp is greatly reduced, and meanwhile, the texture structure is arranged on the surface of the reflecting groove, so that the light sensation effect can be improved, and the illumination is more uniform. In addition, additional reflecting grooves and light sources can be arranged in the optical unit to enhance the illumination effect.

Drawings

Fig. 1 is a schematic structural diagram of a lamp of the present invention.

Fig. 2 is a schematic cross-sectional view of the lamp of the present invention.

Fig. 3 is an enlarged view of the structure at a in fig. 2.

Fig. 4 is a schematic cross-sectional structure diagram of an optical unit of the lamp of the present invention.

Fig. 5 is a schematic structural diagram of another view angle of the optical unit of the lamp of the present invention.

FIG. 6 is a schematic structural diagram of an optical unit of a lamp according to the present invention having a texture structure.

FIG. 7 is a schematic structural diagram of an optical unit of a lamp according to the present invention having a texture structure.

Fig. 8 is a schematic structural diagram of the optical unit of the lamp provided with the third housing.

FIG. 9 is a schematic structural view of an optical unit of a lamp according to the present invention having a reflective surface.

FIG. 10 is a schematic structural diagram of an optical module of a lamp according to the present invention.

Reference numerals: 100. a light fixture;

10. a lamp housing; 11. an optical space; 12. an open structure; 13. a sealing groove; 14. reinforcing ribs;

20. a light source assembly; 21. a light source plate; 22. a light emitting element;

30. an optical unit; 31. a first housing; 311. a reflective surface; 32. a second housing; 33. a third housing; 34. texture structure; 35. a first reflective trough; 36. a second reflective trough; 37. connecting ribs; 38. a mounting member;

30', an optical unit; 31', a first housing;

40. an optical module;

50. and a light-transmitting cover.

Detailed Description

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

It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and/or processing steps closely related to the aspects of the present invention are shown in the drawings, and other details not closely related to the present invention are omitted.

In addition, it is also to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

As shown in fig. 1 to 10, the present invention discloses a lamp 100, wherein the lamp 100 is a projector, and includes a light source assembly 20 disposed in the lamp 100 and an optical unit 30, and the optical unit 30 is configured to converge light emitted from the light source assembly 20 and then project the light over a large area. For clarity of description, the following description will take the optical unit 30 applied to the luminaire 100 as an example.

As shown in fig. 1 to 3, the lamp 100 includes a lamp housing 10, a light source assembly 20, an optical unit 30, and a light-transmitting cover 50, wherein the light source assembly 20 and the optical unit 30 are disposed in the lamp housing 10, and the light-transmitting cover 50 is used for sealing connection with the lamp housing 10 to waterproof the lamp 100.

Specifically, the lamp housing 10 is of a sheet metal structure, and the bottom of the lamp housing is provided with a reinforcing rib 14 for placing the lamp housing 10 to deform, and the reinforcing rib 14 surrounds the periphery of the light source assembly 20. Be formed with optical space 11 and open structure 12 in the lamp body 10, optical space 11 with open structure 12 communicates each other, lamp body 10 one side is open structure 12, printing opacity cover 50 combines on open structure 12, optical space 11 is close to the bottom setting of lamp body 10 just light source subassembly 20 with optical unit 30 sets up in the optical space 11, light source subassembly 20 sets up lamp body 10 with in the optical space 11 that printing opacity cover 50 encloses jointly, open structure 12 sets up the edge of lamp body 10 opening just is used for setting up printing opacity cover 50. For further strengthening the leakproofness of printing opacity cover 50, lamp body 10 with be equipped with seal structure between the printing opacity cover 50, open structure 12 bottom is formed with the ring around seal groove 13 that optical space 11 set up, seal groove 13 sets up on the outer fringe of lamp body 10 and extend along circumference, it has to fill in the seal groove 13 the glue layer in the seal groove 13 or imbed the sealing washer in the seal groove 13, seal groove 13 is equipped with one at least, preferably is equipped with two of mutual nested setting. The light-transmitting cover 50 may be glass or other materials, and is not limited herein.

As shown in fig. 4, the light source assembly 20 includes a light source board 21 and a plurality of light emitting elements 22 disposed on the light source board 21, preferably, the light emitting elements 22 are led lamp beads, and the light emitting elements 22 are disposed toward the opening. The light source board 21 is disposed at the bottom of the lamp housing 10, and the light emitting elements 22 are annularly disposed on the light source board 21.

As shown in fig. 4, the optical unit 30 includes a first casing 31 covering the light emitting element 22, the first casing 31 is in a shape of a trumpet, the first casing 31 has a gradually increasing trend along the light emitting direction of the light emitting element 22, a reflective surface 311 is disposed on the inner side of the first casing 31, and a reflective film is disposed on the reflective surface 311 and used for reflecting the light emitted by the light emitting element 22 to achieve the purpose of converging the light.

In a preferred embodiment of the present invention, the first housing 31 is further provided with a second housing 32, the second housing 32 is in a trumpet shape, the second housing 32 has a tendency of gradually decreasing along the light emitting direction of the light emitting element 22, the first housing 31 is disposed around the outside of the second housing 32, the second housing 32 is provided with a reflective surface 311 facing the outside of the first housing 31, the reflective surface 311 and the reflective surface 311 are enclosed to form a first annular reflective groove 35 disposed between the first housing 31 and the second housing 32, the outer surface of the second housing 32 and the inner surface of the first housing 31 both form the reflective surface 311 of the first reflective groove 35, the first reflective groove 35 is disposed around the outside of the second housing 32, one end of the first reflective groove 35 is provided with a light inlet through which light enters the first reflective groove 35, the light inlet is configured to: a plurality of light emitting elements 22 are arranged in the circumferential direction, that is, the light emitting elements 22 are disposed at the bottom of the first reflecting groove 35, and the other end of the first reflecting groove 35 opposite to the light emitting element is provided with a light outlet for emitting light. The light emitted from the light emitting element 22 is reflected by the reflecting surface 311 and the reflecting surface 311.

Preferably, the reflecting surface 311 and the reflecting surface 311 are both free-form surfaces. It can be understood that the size of the light distribution angle can be adjusted by adjusting the degree of bending of the reflecting surface 311 and the reflecting surface 311.

As shown in fig. 5 and 9, the first housing 31 and the second housing 32 are further connected by a connecting rib 37, the connecting rib 37 is disposed at the bottom of the first reflective groove 35, and the connecting rib 37 and the light emitting element 22 are located on the same plane. Preferably, the connecting ribs 37 are provided in four groups, and every two connecting ribs 37 are arranged at the bottom of the first reflecting groove 35 at intervals of ninety degrees, so as to reinforce the connecting structure between the first casing 31 and the second casing 32, of course, the first casing 31 and the second casing 32 may be connected by other connecting structures, and may be specifically arranged as required, which is not limited herein. In particular, the connecting rib 37 is provided with a mounting hole corresponding to the light source board 21 to fix the optical unit 30 to the light source board 21 by a mounting member 38. The mounting member 38 includes, but is not limited to, a bolt or the like. In other embodiments of the present invention, there is a snap connection, a screw connection or an adhesive connection between the optical unit 30 and the light source board 21.

As shown in fig. 6 and 7, the reflecting surface 311 and the reflecting surface 311 are formed with a texture structure 34 for reflecting light, the texture structure 34 is composed of a plurality of protrusions, and the texture structure 34 is used for enhancing the reflection effect. Specifically, the protrusion may be circumferentially arranged and distributed along the light emitting direction of the light emitting element 22, that is, from the bottom of the first reflective groove 35 toward the opening of the first reflective groove 35, the protrusion may also be distributed along the light emitting direction of the light emitting element 22, that is, the protrusion is annular and the plane where the protrusion is located is parallel to the bottom of the first reflective groove 35. It is understood that the distribution of the texture structures 34 includes, but is not limited to, the above-mentioned manner, and the shape of the protrusions may also be zigzag, circular arc, dot or fish scale, as long as the effect of converging light rays is enhanced.

As shown in fig. 7, as a preferred embodiment of the present invention, the optical unit 30 further includes a third housing 33, the third housing 33 is disposed in the second housing 32, the second housing 32 has a flared cavity for accommodating the third housing 33, the second casing 32 is disposed around the outside of the third casing 33, a second reflective groove 36 having a ring shape is formed between the second casing 32 and the third casing 33, the bottom of the second reflective groove 36 is provided with the light emitting element 22 disposed around the third housing 33, the cavity of the second casing 32 for accommodating the third casing 33 has a tendency of gradually increasing along the light-emitting direction of the light-emitting element 22, the third casing 33 is trumpet-shaped, and the third casing 33 has a tendency of gradually decreasing along the light emitting direction of the light emitting element 22.

As shown in fig. 8, it is understood that, in another embodiment of the present invention, a portion of the second casing 32 is recessed from the light outlet toward the light inlet to form a cup structure, a surface of the cup structure forms a reflective surface 311, and a side of the cup structure near the light inlet is opened with a light inlet hole for the light emitting element 22 to be inserted into. That is, the optical unit 30 is not provided with the third housing 33, and the light emitted from the light emitting element 22 may be directly reflected by the reflecting surface 311, which is not limited herein.

Further, a reflective surface 311 is formed on a side of the second housing 32 facing the second reflective groove 36, a reflective surface 311 is formed on a side of the third housing 33 facing the second reflective groove 36, and the light emitted from the light emitting element 22 is reflected by the reflective surface 311 and the reflective surface 311. Preferably, the reflecting surface 311 and the reflecting surface 311 are free-form surfaces, including but not limited to one or more combinations of spherical surfaces, ellipsoidal surfaces, paraboloidal surfaces, and hyperboloidal surfaces.

According to the above embodiments, the reflection surface 311 and the reflection surface 311 may also be formed with a texture structure 34 for reflecting light, and the specific structure of the texture structure 34 is the same as the texture structure 34 of the reflection surface 311 and the reflection surface 311, which is not described herein again.

Similarly, the second housing 32 and the third housing 33 are connected by a connecting rib 37, the connecting rib 37 is disposed at the bottom of the second reflective groove 36, and the connecting rib 37 and the light emitting element 22 are located on the same plane. In another embodiment of the present invention, the connecting ribs 37 may connect the first housing 31, the second housing 32, and the third housing 33 at the same time, and the number of the connecting ribs 37 is not limited to four, as long as the fixing function can be achieved.

Reflecting surface 311 emitting light elements 22 as shown in fig. 10, as another preferred embodiment of the present invention, the present invention further provides a lamp 100, said lamp 100 comprises a lamp housing 10, a light source assembly 20, an optical module 40 and a light transmissive cover 50, said light source assembly 20 comprises a light source plate 21 and a plurality of light emitting elements 22 arranged on said light source plate 21 in an array, said light emitting elements 22 are in a ring shape, said light emitting elements 22 include but are not limited to being arranged in the form of 1x2, 2x2 or 3x3, etc. The optical module 40 includes a plurality of optical units 30 ' corresponding to the light emitting elements 22 one by one, the optical units 30 ' are integrally formed and uniformly arranged along the transverse direction and the longitudinal direction, respectively, and the optical units 30 ' are correspondingly arranged in the form of 1x2, 2x2 or 3x3, etc. In the present embodiment, a plurality of the optical units 30' are integrally formed on one substrate.

Specifically, the optical module 40 includes a rectangular first housing 31 ', a plurality of through holes are formed in the first housing 31', a rim of the through hole has a reflective surface 311 extending toward the light emitting element 22, the reflective surface 311 is disposed around an outer side of the light emitting element 22, a second housing 32 is further disposed in the optical unit 30 ', the second housing 32 has a reflective surface 311 disposed toward the reflective surface 311, so that a first reflective groove 35 is formed between the first housing 31' and the second housing 32, and the light emitting element 22 is disposed around the second housing 32 at a bottom of the first reflective groove 35. Preferably, the optical module 40 is integrally manufactured by a hot molding process.

It is understood that, according to the foregoing embodiment, the annular light emitting element 22 may also be disposed inside the light emitting element 22, and accordingly, the second shell 32 has a flared cavity therein and is used for accommodating the third shell 33, so as to form an annular second reflection groove 36 between the second shell 32 and the third shell 33 and reflect the light emitted by the light emitting element 22 through the second reflection groove 36. The structure of the third housing 33 is the same as that of the previous embodiment, and is not described again.

In summary, the optical unit 30 provided by the present invention is provided with the annular reflective groove, which can reflect the annular light source, and the optical unit 30 is integrated on the same optical module 40 to replace a lens module, thereby greatly reducing the production cost of the lamp 100, and meanwhile, the texture structure 34 is provided on the surface of the reflective surface 311 of the reflective groove, which can increase the light sensing effect, so that the illumination is more uniform. In addition, additional reflective grooves and light sources may be disposed in the optical unit 30 to enhance the illumination effect.

Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present invention.

Claims

1. An optical unit (30) for use in a luminaire (100), characterized by: optical unit (30) include at least by outer to interior encircleing first casing (31) and second casing (32) that set up and be connected, first casing (31) with be formed with between second casing (32) and be annular first reflection groove (35), the surface of second casing (32) and the internal surface of first casing (31) all constitutes reflection plane (311) of first reflection groove (35), first reflection groove (35) one end is equipped with and supplies light to penetrate into the light inlet in first reflection groove (35), the light inlet configuration is: a plurality of light emitting elements (22) are arranged in the circumferential direction, and the other end part opposite to the first reflecting groove (35) is provided with a light outlet for emitting light.

2. The optical unit (30) of claim 1, wherein: the optical unit (30) further includes at least a third housing (33), and a space between the second housing (32) and the third housing (33) is formed with a second reflection groove (36).

3. The optical unit (30) of claim 2, wherein: the second shell (32) is internally provided with a cup body structure which is formed by partially sinking from the light outlet to one side of the light inlet, the surface of the cup body structure forms a reflecting surface (311), and one side of the cup body structure, which is close to the light inlet, is provided with a light inlet hole for embedding the light-emitting element (22).

4. An optical unit (30) according to claim 3, characterized in that: the reflecting surface (311) is provided with a texture structure (34) for reflecting light.

5. The optical unit (30) of claim 4, wherein: the texture structure (34) comprises a plurality of protrusions which are arranged along the circumferential direction, and each protrusion extends from the light inlet to one side of the light outlet.

6. The optical unit (30) of claim 4, wherein: texture structure (34) include a plurality of along go into the light mouthful towards the arch of arranging of light-emitting window one side, each the arch is along circumference extension and be the annular.

7. The optical unit (30) of claim 6, wherein: the shape of the bulge is zigzag, circular arc, punctiform or fish scale.

8. An optical unit (30) according to claim 3, characterized in that: the reflecting surface (311) is a free-form surface.

9. The optical unit (30) of claim 8, wherein: the free curved surface comprises one or more of a spherical surface, an ellipsoid, a paraboloid and a hyperboloid.

10. An optical unit (30) according to claim 3, characterized in that: the first shell (31), the second shell (32) and the third shell (33) are connected through a connecting rib (37), and the connecting rib (37) and the light inlet are located on the same end face of the optical unit (30).

11. An optical unit (30) according to claim 3, characterized in that: the first shell (31), the second shell (32) and the third shell (33) are manufactured by a reflective film hot-molding process.

12. An optical module (40) for use in a lamp (100), comprising: comprising a plurality of optical units (30) according to any one of claims 1 to 11, the plurality of optical units (30) being integrally formed and uniformly arranged along the transverse and longitudinal directions, respectively.

13. The optical module (40) of claim 12, wherein: a plurality of the optical units (30) are integrally formed on one substrate.

14. A luminaire (100) characterized by: an optical unit (30) as claimed in any one of claims 1 to 11 is provided in the luminaire (100).

15. The luminaire (100) of claim 14, wherein: lamps and lanterns (100) include lamp body (10), printing opacity cover (50) and light source subassembly (20), lamp body (10) one side is open structure (12), printing opacity cover (50) combine on open structure (12), light source subassembly (20) set up lamp body (10) with in the optical space (11) that printing opacity cover (50) enclose jointly, lamp body (10) with be equipped with seal structure between printing opacity cover (50).

16. The luminaire (100) of claim 15, wherein: the sealing structure comprises at least one sealing groove (13) which is arranged on the outer edge of the lamp shell (10) and extends along the circumferential direction, and a glue layer filled in the sealing groove (13) or a sealing ring embedded in the sealing groove (13).

17. The luminaire (100) of claim 15, wherein: and the lamp shell (10) is provided with a reinforcing rib (14), and the reinforcing rib (14) is arranged around the outer peripheral side of the light source component (20).

18. The luminaire (100) of claim 17, wherein: the light source assembly (20) comprises a light source board (21) and a plurality of light emitting elements (22) arranged on the light source board, and the optical unit (30) is in snap connection, screw connection or adhesive connection with the light source board (21).