CN114992544B - Lamp holder assembly and lamp with same - Google Patents
Lamp holder assembly and lamp with same Download PDFInfo
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- CN114992544B CN114992544B CN202210716039.8A CN202210716039A CN114992544B CN 114992544 B CN114992544 B CN 114992544B CN 202210716039 A CN202210716039 A CN 202210716039A CN 114992544 B CN114992544 B CN 114992544B
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- 238000005286 illumination Methods 0.000 claims description 22
- 239000011324 bead Substances 0.000 claims description 14
- 210000003128 head Anatomy 0.000 description 23
- 230000000694 effects Effects 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000000149 argon plasma sintering Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 241001465382 Physalis alkekengi Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 208000003464 asthenopia Diseases 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S6/00—Lighting devices intended to be free-standing
- F21S6/002—Table lamps, e.g. for ambient lighting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/002—Refractors for light sources using microoptical elements for redirecting or diffusing light
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The application discloses a lamp cap assembly and a lamp with the same, wherein the lamp cap assembly comprises a lamp cap base, a lighting piece, a light-emitting piece and a cover piece, and the lighting piece, the light-emitting piece and the cover piece are all connected to the lamp cap base; the lighting piece is provided with a plurality of light-emitting units which are arranged in an array; the light divergence piece is provided with a plurality of divergence units which are arranged in an array, the plurality of divergence units correspond to the plurality of light-emitting units, the light incident surface and the light emergent surface of the divergence units respectively comprise curved surfaces, and the curved surface curvature of the light emergent surface is larger than the curved surface curvature of the light incident surface; the cover member is provided with a plurality of light-transmitting units which are arranged in an array mode, the plurality of light-transmitting units correspond to the plurality of dispersing units, and the area of the light-entering end of the light-transmitting unit is smaller than that of the light-emitting end. The lamp cap assembly and the lamp with the lamp cap assembly can better disperse light rays emitted by a light source, so that the irradiation area has more uniform illuminance.
Description
Technical Field
The application relates to the technical field of lighting fixtures, in particular to a lamp holder assembly and a lamp with the lamp holder assembly.
Background
Desk lamps are a common lighting tool, and often require the use of desk lamps to provide sufficient light when people need to read or write in dim light environments. Due to the superior performance of LEDs (Light-emitting diodes) in terms of anti-glare, anti-stroboscopic, energy saving, etc., in recent years, a desk lamp using LED beads as a Light source has become a mainstream in the market.
However, the existing LED desk lamp has the disadvantages that the light emitted by the LED lamp beads is concentrated, so that the illumination of the desk lamp in the illumination range is uneven, the illumination of the central area is high, the illumination of the edge area is low, and eye fatigue is easily caused.
Disclosure of Invention
In view of this, the application provides a lamp cap assembly and a lamp with the same, which can better disperse the light emitted by a light source, so that the illumination area has more uniform illumination.
The application adopts the following technical scheme:
A first aspect of the present application provides the lamp head assembly comprising a lamp head base, a lighting element, a light-emitting element and a covering element, wherein the lighting element, the light-emitting element and the covering element are all connected to the lamp head base;
the lighting piece is provided with a plurality of light-emitting units which are arranged in an array;
The light divergence piece is provided with a plurality of divergence units which are arranged in an array, the plurality of divergence units correspond to the plurality of light-emitting units, the light incident surface and the light emergent surface of the divergence units both comprise curved surfaces, and the curved surface curvature of the light emergent surface is larger than the curved surface curvature of the light incident surface;
The cover member is provided with a plurality of light-transmitting units which are arranged in an array mode, the plurality of light-transmitting units correspond to the plurality of dispersing units, and the area of the light-entering end of the light-transmitting unit is smaller than that of the light-emitting end.
Optionally, the light emitting unit is an LED lamp bead;
The diverging unit is a lens, and the lens protrudes towards a direction away from the LED lamp beads;
the light transmitting unit is a light transmitting opening, and the opening size of the part, close to the light emitting end, of the light transmitting unit in the direction away from the light emitting unit is gradually increased.
Optionally, the cross-sectional shape of the light-transmitting opening is regular hexagon.
Optionally, the ratio between the maximum irradiation angle of the light emitting unit and the maximum exit angle of the lens is 0.62-0.9, wherein the irradiation angle is an included angle between the light emitted from the light emitting unit and the irradiation surface, and the exit angle is an included angle between the light emitted from the light emitting unit and the irradiation surface.
Optionally, the ratio between the distance between adjacent light emitting units and the incident distance is in the range of 4-9, the incident distance is the maximum distance between any light emitting unit and the light incident surface of the corresponding divergence unit in the first direction, and the first direction is the positive light emitting direction of the light emitting unit;
the ratio range between the distance between the adjacent light emitting units and the emergent distance is 10-65, and the emergent distance is the minimum distance between the emergent surface of the divergent unit and the emergent end of the corresponding light transmitting unit in the first direction;
the ratio of the size of the light emitting end of the light transmitting unit to the size of the light entering end is 1.1-1.6.
Optionally, the number of the light emitting units is not less than 54, and the total power of the lighting member is not less than 8W.
Optionally, the maximum irradiation angle range of the light emitting unit is 100-140 degrees;
the maximum emergence angle range of the light beam of the light emitting unit passing through the divergence unit is 110-160 degrees;
The interval between the adjacent light-emitting units is 10-13mm;
the incident distance is 1.5-2.5mm, and the emergent distance is 0.2-1mm;
the size range of the light inlet end of the light transmission unit is 7-10mm, and the size range of the light outlet end is 8-11mm.
Optionally, the maximum irradiation angle of the light emitting unit is 120 degrees, and the maximum exit angle is 140 degrees;
The interval between the adjacent light-emitting units is 12mm;
the incident distance is 1.8mm, and the emergent distance is 0.7mm;
the size of the light inlet end of the light transmission unit is 8mm, and the size of the light outlet end is 8.8mm.
Optionally, the light emitting surface of the divergence unit is a continuous curved surface.
Optionally, the maximum irradiation angle of the light emitting unit is 120 degrees, and the maximum exit angle is 140 degrees;
The interval between the adjacent light-emitting units is 12mm;
the incident distance is 2mm, and the emergent distance is 0.3mm;
the size of the light inlet end of the light transmission unit is 8.6mm, and the size of the light outlet end is 9.4mm.
Optionally, the light emitting surface of the divergence unit includes a curved surface portion and a planar portion connected to a circumferential edge of the curved surface portion, and a ratio of a height of the curved surface portion to a height of the planar portion in the first direction ranges from 2.6 to 3.4.
A second aspect of the application provides a lamp comprising a lamp head assembly as described above.
According to the lamp cap assembly and the lamp provided by the embodiment of the application, the light emitting part is arranged in the lamp cap assembly for the illumination part, and the light emitting part is provided with the emitting units corresponding to the plurality of light emitting units in the illumination part, when light rays are emitted through the emitting units, the curved surface curvature of the light emitting surface of the emitting units is larger than the curved surface curvature of the light entering surface, so that the lamp cap assembly and the lamp have a good emitting effect; and still be provided with the lid and close the piece in the one end that the light diverged the piece kept away from the lighting part, have a plurality of light-transmitting units that correspond with the divergence unit on the lid and close, the size that the light-in end of light-transmitting unit is less than the size of light-emitting end and is greater than the size of divergence unit, therefore the light that the light emitted from the divergence unit can be further diverged by the light-transmitting unit to make the illuminance of this lamp holder subassembly and lamps and lanterns relatively more even.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a first exploded view of a lamp head assembly provided by an embodiment of the present application;
fig. 2 is a first cross-sectional view of a lamp head assembly (not shown) provided by an embodiment of the present application;
FIG. 3 is a first cross-sectional view of a closure provided in an embodiment of the present application;
fig. 4 is a second cross-sectional view of a lamp head assembly (not shown) provided by an embodiment of the present application;
FIG. 5 is a top view of a closure provided in an embodiment of the present application;
FIG. 6 is an enlarged partial cross-sectional view of a lamp head assembly (not shown) provided by an embodiment of the present application;
Fig. 7 is a third cross-sectional view of a lamp head assembly (not shown) provided by an embodiment of the present application;
FIG. 8 is a second cross-sectional view of a closure provided in an embodiment of the present application;
FIG. 9 is an enlarged view of a portion of a first illumination element according to an embodiment of the present application;
FIG. 10 is an enlarged view of a portion of a second illumination element according to an embodiment of the present application;
FIG. 11 is a second exploded view of a lamp head assembly provided by an embodiment of the present application;
fig. 12 is a schematic structural diagram of a lamp according to an embodiment of the present application;
Fig. 13 is a schematic view of the pattern of the illuminance test.
Specific embodiments of the present application have been shown by way of the above drawings and will be described in more detail below. The drawings and the written description are not intended to limit the scope of the inventive concepts in any way, but rather to illustrate the inventive concepts to those skilled in the art by reference to the specific embodiments.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
As shown in fig. 1, an embodiment of the present application provides a lamp cap assembly 100, where the lamp cap assembly 100 includes a lamp cap base 110, a lighting element 120, a light diffusing element 130, and a covering element 140, and the lighting element 120, the light diffusing element 130, and the covering element 140 are all connected to the lamp cap base 110; the illuminating member 120 has a plurality of light emitting units 121 arranged in an array; the dispersing piece is provided with a plurality of dispersing units 131 which are arranged in an array, the plurality of dispersing units 131 correspond to the plurality of light emitting units 121, the light incident surface and the light emergent surface of the dispersing units 131 comprise curved surfaces, and the curved surface curvature of the light emergent surface is larger than the curved surface curvature of the light incident surface; the cover member 140 has a plurality of light-transmitting units 141 arranged in an array, the plurality of light-transmitting units 141 correspond to the plurality of diverging units 131, and an area of the light-incident end of the light-transmitting unit 141 is smaller than an area of the light-emitting end.
Illustratively, the base 110 may be a cap member, and the lighting member 120, the light diffusing member 130, and the covering member 140 are all positioned inside the base 110. The lamp head assembly 100 achieves illumination through the light emitting unit 121 arranged on the light emitting surface of the illuminating member 120, wherein the light emitting unit 121 is arranged on the surface of the illuminating member 120 facing the light diverging member 130, so that the light emitting unit 121 also faces the opening of the cover-shaped member, and the light emitted by the illuminating member 120 can be emitted from the opening of the lamp head base 110 after being diverged by the light diverging member 130. In the embodiment of the present application, the light emitting unit 121 may be attached to the surface of the lighting element 120, or may be embedded or engaged with the lighting element 120, so that a portion of the light emitting unit 121 is exposed on the surface of the lighting element 120 facing the light emitting element 130.
The light emitting member 130 is located at a side of the illuminating member 120 adjacent to the opening of the cover member and adjacent to a surface on which the light emitting unit 121 is located. After the light emitted from the illuminating member 120 passes through the light-emitting member 130, the light can be emitted more uniformly and softly. The light emitting member 130 is generally made of a light transmitting and diffusing material, which is generally a material that can transmit light and diffuse light. In some embodiments, the light transmissive diffusing material is capable of converting a point, linear light source into a planar light source, thereby improving the uniformity of light distribution. Illustratively, the light emitting member 130 may be made of a transparent polymer such as polycarbonate, a transparent polyolefin material, polyethylene terephthalate, polymethyl methacrylate, or the like.
The cover member 140 may be coupled to the base 110 so as to fix the illuminating member 120 and the light diffusing member 130 to the inside of the base 110 and prevent them from falling off. In order to avoid blocking the light emission, a plurality of light transmitting units 141 are disposed on the cover member 140, and the area size of the light incident end of each light transmitting unit 141 is smaller than the area size of the light emitting end, so that the light can be further dispersed when emitted through the light transmitting unit 141. Generally, to ensure sufficient emission of light, the area size of the light diffusing unit is smaller than the area size of the light incident end of the corresponding light transmitting unit 141, so that the light diffusing unit can enter the inside of the light transmitting unit 141. The area size of the light scattering unit refers to the size of the orthographic projection of the light scattering unit on the light emitting surface of the light diffusion piece.
In summary, in the lamp cap assembly 100 provided by the embodiment of the application, the light emitting component 130 is disposed for the illumination component 120, the light emitting component 130 has the emitting units 131 corresponding to the plurality of light emitting units 121 in the illumination component 120, and when the light is emitted through the emitting units 131, the curvature of the light emitting surface of the emitting unit 131 is greater than the curvature of the light entering surface, so that the light emitting unit has a better emitting effect; the light emitted from the light-emitting element 130 is emitted from the light-transmitting unit 141 on the cover member 140, wherein the light-incident end of the light-transmitting unit 141 has an area smaller than that of the light-emitting end, so that the light can be further emitted, and the light emitted from the lamp cap assembly 100 is more uniform.
As shown in fig. 2, in some implementations of the present application, the intervals between any two adjacent light emitting units 121 are equal, and the corresponding light emitting units 121, diverging units 131, and light transmitting units 141 are disposed to be concentric.
In some embodiments, the number of the light emitting units 121, the light emitting units 131, and the light transmitting units 141 is equal, the light emitting units 121 and the light emitting units 131 are in one-to-one correspondence, and the light transmitting units 141 and the light transmitting units 131 are in one-to-one correspondence. The distances between any two adjacent light emitting units 121 among the plurality of light emitting units 121 arranged in an array are equal, and accordingly, the distances between any two adjacent diverging units 131 are equal, the distances between any two adjacent light transmitting units 141 are also equal, and the distances are equal to the distances of the light emitting units 121. Note that, in the embodiment of the present application, the distance between any two light emitting units 121 refers to the distance between the centers of the two light emitting units 121. Likewise, the distance between any two diverging units 131 refers to the distance between the centers of the two diverging units 131, and the distance between any two light-transmitting units 141 refers to the distance between the centers of the two light-transmitting units 141. Thus, for any one group of the light emitting unit 121, the diverging unit 131, and the light transmitting unit 141 corresponding to each other, their centers pass through the same straight line, i.e., the concentric line.
In some implementations of the application, the light emitting units 121 may be LED beads; the diverging unit 131 may be a lens, and the lens protrudes in a direction away from the LED beads; the light transmitting unit 141 is a light transmitting opening, and the opening size of a portion of the light transmitting unit 141 near the light emitting end gradually increases in a direction away from the light emitting unit 121.
For example, the lighting member 120 may be a PCB (Printed Circuit Board ) lamp panel, one side of which is arranged in an array with a plurality of LED lamp beads of a plurality of patches arranged at equal intervals.
The light diffusing unit 131 may be a lens, the light incident surface and the light emergent surface of the lens are both convex, and the protruding direction is the direction away from the LED lamp beads, so that a plurality of recesses are formed on the side of the light diffusing element, which is close to the illuminating element 120, due to the protruding light incident surface of each light diffusing unit 131, and then a cavity is formed between the illuminating element 120 and the light incident surface of the light diffusing unit 131 due to the recesses.
In some embodiments of the present application, the ratio between the maximum irradiation angle of the light emitting unit 121 and the maximum exit angle of the diverging unit 131 is 0.62-0.9, wherein the irradiation angle is the angle between the light emitted from the light emitting unit 121 and the irradiation surface, and the exit angle is the angle between the light emitted from the diverging unit 131 and the irradiation surface.
Light emitted by the LED lamp beads can be emitted into the light incident surface of the lens from air, then spread in the lens, finally emitted out of the light emergent surface of the lens and finally re-enter the air. Wherein the lens is an optically hydrophobic medium having a refractive index of less than 1. After the light rays emitted by the light emitting unit enter the lens through the maximum irradiation angle, the maximum irradiation angle is larger than the maximum irradiation angle when the light rays are emitted from the lens at the maximum irradiation angle, and optionally, the ratio between the maximum irradiation angle and the maximum irradiation angle is 0.62-0.9.
As shown in fig. 6, the irradiation angle of the light emitting unit 121 refers to the angle between the light and the irradiation surface, and is denoted by α; the exit angle refers to the angle between the light ray and the irradiation surface when it exits from the divergent unit 131, and is denoted by β.
Referring to fig. 3, the cross section of the light-transmitting opening is in a horn shape, wherein the size of the opening gradually increases at a portion of the light-transmitting opening near the light-emitting end, so that the emergent light rays show a diffusion trend. In some embodiments, the size of the light-transmitting opening is gradually increased from the light-entering end to the light-exiting end of the light-transmitting opening; or as shown in fig. 3, from the light inlet end to the light outlet end of the light transmission opening, the size of the light transmission opening is kept unchanged, and then gradually increases.
As shown in fig. 4, in some implementations of the present application, the light-diffusing member 130 may be attached to the illuminating member 120, and the LED beads are located in the recesses of the light-incident surface of the corresponding lens; the cover member 140 is attached to the light-diffusing member 130, and at least a portion of the light-emitting surface of the lens is located in the corresponding light-transmitting unit 141.
In practice, the light-emitting component 130 and the illuminating component 120 are tightly attached, so that the light incident surface of the lens can enclose the LED lamp beads, and the light emitted by the LED lamp beads can be diffused for the first time through the lens. The cover member 140 is attached to a side of the light emitting member 130 away from the illuminating member 120, so that the light emitting surface of the lens can extend into the corresponding light transmitting unit 141, and the light emitted from the light emitting surface is totally diffused for the second time.
In some implementations of the application, as shown in fig. 5, the plurality of light-transmitting openings on the covering member 140 are distributed in a honeycomb shape, and each light-transmitting opening has a regular hexagonal shape in cross section. Compared with other shapes, the light-transmitting openings which are distributed in a honeycomb shape and are in a regular hexagon shape have better light scattering effect, and can form a surface light source to a certain extent, so that uniform and soft light can be emitted in a wider angle range, and meanwhile, higher transmittance and better visual effect are brought.
Referring to fig. 7 and 8, the ratio between the distance D between adjacent light emitting units 121 and the incident distance h1 ranges from 4 to 9, the incident distance h1 is the maximum distance between any light emitting unit 121 and the light incident surface of the corresponding diverging unit 131 in the first direction, and the first direction is the positive light emitting direction of the light emitting unit 121; the ratio between the distance D between the adjacent light emitting units 121 and the emergent distance h2 is 10-65, and the emergent distance h2 is the minimum distance between the emergent surface of the divergent unit 131 and the emergent end of the corresponding light transmitting unit 141 in the first direction; the ratio of the dimension d2 of the light emitting end to the dimension d1 of the light entering end of the light transmitting unit 141 is in the range of 1.1-1.6.
Fig. 7 shows an assembled structure of the illuminating member 120, the light diffusing member 130, and the covering member 140. In fig. 7, the pitches between any two adjacent light emitting units 121 are equal, denoted by D. The incident distance refers to the maximum distance between the light emitting units 121 and the light incident surface of the corresponding diverging unit 131 in the forward light emitting direction of the light emitting units 121, and is denoted by h 1. The positive light emitting direction of the light emitting unit 121 refers to the light emitting direction of the central light beam of the light emitting unit 121, which is generally consistent with the direction of the light emitting unit 121, for example, when the direction of the light emitting unit 121 is vertically downward, the positive light emitting direction thereof is vertically downward. In practice, the light emitting unit 121 may be regarded as a linear light source, and the propagation direction of the light beam emitted by the linear light source is the positive light emitting direction. The exit distance refers to the minimum distance between the light exit surface of the diverging unit 131 and the light exit end of the corresponding light transmitting unit 141 in the positive light exit direction of the light emitting unit 121, and is denoted by h 2. In practice, the bottom of the lens is typically furthest from the light source and is located inside the light-transmitting opening, in which case the minimum distance between the bottom of the lens and the light-emitting end of the light-transmitting opening may be taken as the exit distance.
Fig. 8 shows a cross section of the covering member 140, and the light-transmitting opening is a regular hexagon, so that the size of the light-emitting end of the light-transmitting unit 141 is the distance between two opposite sides of the regular hexagon of the light-emitting end, and the size of the light-entering end is the distance between two opposite sides of the regular hexagon of the light-entering end.
In some embodiments of the present application, as shown in fig. 6-8, the maximum illumination angle range of the light emitting unit 121 is 100-140 degrees; the maximum emergence angle range of the light beam of the light emitting unit 121 after passing through the divergence unit 131 is 110-160 degrees; the interval between the adjacent light emitting units 121 is 10-13mm; the incident distance is 1.5-2.5mm, and the emergent distance is 0.2-1mm; the light incident end of the light transmitting unit 141 has a size range of 7-10mm and the light emitting end has a size range of 8-11mm.
By defining the cross-sectional shape of the light-transmitting opening in the lamp cap assembly 100, the refractive index of the lens, the distance D between adjacent light-emitting units 121, the incident distance h1, the emergent distance h2, the dimension D1 of the light-incident end, and the dimension D2 of the light-emitting end, the illuminance and illuminance uniformity of the lamp cap assembly 100 are both within a preferred range.
There are corresponding requirements in the art, both in terms of illuminance and illuminance uniformity of the luminaire, as shown in table 1 below:
TABLE 1 illuminance and illuminance uniformity requirement
Based on the first level and the second level in the above table, each of embodiment 1 and embodiment 2 of the present application provides a lamp head assembly capable of satisfying the two levels described above, respectively.
Example 1
In the lamp cap assembly 100 provided by the application, the maximum irradiation angle of the light emitting unit 121 is 120 degrees, and the maximum emergence angle of the light beam of the light emitting unit 121 after passing through the divergence unit 131 is 140 degrees; the interval between adjacent light emitting units 121 is 12mm; the incident distance is 1.8mm, and the emergent distance is 0.7mm; the light incident end of the light transmitting unit 141 has a size of 8mm, and the light emitting end has a size of 8.8mm.
Alternatively, as shown in fig. 9, the light emitting surface of the diverging unit 131 is a continuous curved surface. Wherein the continuous curved surface indicates that all areas of the light surface are curved surfaces and the curved surfaces are smooth.
By testing the illuminance and uniformity of the lamp head assembly 100, it was determined that the illuminance and uniformity of the lamp head assembly 100 meets the first level of requirements. The lamp head assembly 100 has excellent illuminance and uniformity of illuminance at the first level, thereby having excellent eye protection effect. When the user uses the lamp meeting the first level, eyes are not easy to feel tired, and the lamp has good use feeling.
Example 2
In another lamp cap assembly 100 provided by the present application, the maximum irradiation angle of the light emitting unit 121 is 120 degrees, and the maximum exit angle of the light beam of the light emitting unit 121 after passing through the diverging unit 131 is 140 degrees; the interval between adjacent light emitting units 121 is 12mm; the incident distance is 2mm, and the emergent distance is 0.3mm; the light incident end of the light transmitting unit 141 has a size of 8.6mm and the light emitting end has a size of 9.4mm.
Alternatively, as shown in fig. 10, the light emitting surface of the divergent unit 131 includes a curved surface portion 1311 and a planar surface portion 1312 connected to a circumferential edge of the curved surface portion 1311, and a ratio of heights of the curved surface portion 1311 and the planar surface portion 1312 in the first direction ranges from 2.6 to 3.4. Illustratively, the planar portion 1312 may have a height of 0.55mm in the first direction, with a tolerance of ±0.05mm; the height of the curved surface portion 1311 in the first direction may be 1.65mm with a tolerance of ±0.05mm.
By testing the illuminance and uniformity of the lamp head assembly 100, it was determined that the illuminance and uniformity of the lamp head assembly 100 meets the second level of requirements. The lamp head assembly 100 has more excellent illuminance and more excellent illuminance uniformity than the first level at the second level, thereby having more excellent eye-protecting effect. When the user uses a lamp that meets the second level, the eyes are less fatigued.
Illustratively, the testing of illuminance and uniformity mentioned in the embodiments of the present application may include the following steps:
The lamp is arranged on a horizontal tabletop at a normal working position, and the measurement is carried out after the ignition point of the light source is stable. The geometric center of the light outlet of the lamp is taken as a vertical projection point and is positioned right in front of the eyes, the illumination measurement is carried out on a radius line at intervals of 30 degrees in a third sector with the radius distance of 500mm from the center in the projection range of the lamp at one side close to the eyes, and the test interval is 100mm and comprises the center, as shown in fig. 13. The illuminance uniformity is the ratio between the maximum and minimum values in each region.
Generally speaking, the greater the number of the light emitting units 121, the higher the illuminance thereof, so in some embodiments of the present application, in order to meet the illuminance requirement, the number of the light emitting units 121 included in the lighting fixture 120 is not less than 54, and the total power of the lighting fixture 120 is not less than 8W, so that the luminous flux of the lamp can meet the requirement in the art. However, the illuminance uniformity is affected by the number of the light emitting units 121, and the greater the number, the greater the effect on illuminance uniformity. Optionally, the number of the light emitting units 121 may be 54, and the total power of the lighting device 120 is 8W, so that the lamp cap assembly 100 can achieve both better illuminance and better illuminance uniformity, and can meet the requirements of the first level and the second level.
Fig. 11 is an exploded view of a lamp cap assembly 100 according to an embodiment of the present application. As shown in fig. 11, a first engaging member 111 is disposed at a central position of the base 110, and a first connecting member 112 is disposed at a circumferential edge thereof; the lighting piece 120 is provided with a second clamping piece 122, and the second clamping piece 122 is suitable for being clamped with the first clamping piece 111; the light-emitting component 130 is provided with a third clamping piece 132, and the third clamping piece 132 is suitable for being clamped with the first clamping piece 111; the cover member 140 is provided with a second connecting member 142, and the second connecting member 142 is adapted to be connected to the first connecting member 112.
With continued reference to fig. 11, the first engaging member 111 may illustratively include two cantilever arms, each of which has a first end connected to a central position of an inner wall of the base 110 and a second end extending toward an opening of the base 110, with a gap therebetween, and the second ends of the two cantilever arms may be brought close to each other when an external force acts on the second ends of the two cantilever arms, such that the gap is reduced or even eliminated. The second end of the cantilever has a clamping block located at one side of the cantilever away from the other cantilever.
The second engaging member 122 may be a first opening formed on the lighting member 120, where the position of the first opening corresponds to the position of the cantilever, and the first opening can be engaged with two cantilevers to engage the lighting member 120 on the lamp base 110. The front projection of the two clips on the illuminating member 120 has an overlapping area with the first opening. During assembly, an acting force can be applied to the second ends of the two cantilevers, so that the second ends of the two cantilevers can be close to each other, a gap between the two cantilevers is reduced, the second ends of the cantilevers pass through the first opening in the state, then the acting force on the second ends of the two cantilevers is relieved, the gap between the two cantilevers is restored, and the clamping blocks on the two cantilevers are respectively clamped on the walls on two sides of the first opening, so that the cantilevers exit from the first opening, and the clamping connection between the illuminating piece 120 and the lamp holder base 110 is realized.
The third engaging member 132 may be a second opening formed on the light emitting member 130, where the position of the second opening corresponds to the position of the cantilever, and the second opening can be engaged with two cantilevers to engage the light emitting member 130 on the lamp base 110. The front projection of the two clips on the light emitting member 130 has an overlapping area with the second opening. The assembly of the light emitting member 130 based on the second opening is similar to the assembly of the illumination member 120 based on the first opening, and will not be described herein.
In some embodiments, the distance between the clip and the first end of the cantilever is equal to the sum of the thicknesses of the lighting element 120 and the light emitting element 130, such that after the lighting element 120 and the light emitting element 130 are assembled to the cantilever, the base 110, the lighting element 120, and the light emitting element 130 are in close proximity.
In some embodiments, the first connector 112 may be a slot, and the second connector 142 may be a clip provided at an edge of the cover 140. After the illumination member 120 and the light-emitting member 130 are assembled, the buckle of the cover member 140 may be snapped into the corresponding clipping groove on the base 110, so as to achieve clipping of the cover member 140 and the base 110.
In other embodiments, the first connector 112 and the second connector 142 may be further connected together by bolting, ultrasonic welding, etc., so as to provide better connection performance.
Embodiments of the present application also provide a lamp, which includes the lamp head assembly 100 according to any of the embodiments above. The light fixture may be, for example, a desk lamp, a reading lamp, a work lamp, etc.
As shown in fig. 12, in some implementations of embodiments of the application, the light fixture further includes a light pole assembly 200, a light socket housing 300, and a switch module 400; the lamp cap assembly 100 is connected with the socket housing 300 through the lamp post assembly 200; the socket housing 300 is provided with an installation opening; the switch module 400 is located inside the socket housing 300, and a portion of the switch module 400 protrudes from the mounting opening for receiving actuation to turn on or off power to the lamp head assembly 100.
The lamp post assembly 200 may include a lamp post body and a connection line inside the lamp post body. Illustratively, a first end of the lamp post body may be connected to the lamp head assembly 100 by a connector, and a second end of the lamp post body may be connected to the socket housing 300 by a connector; the connection wire extends from a first end of the lamp post body into the base 110 of the lamp head assembly 100 and connects to the lighting member 120 (e.g., a PCB lamp panel), and the other end of the connection wire extends from a second end of the lamp post body into the socket housing 300.
The socket housing 300 may further be provided therein with a circuit board, and the connection wires may be connected to the circuit board after all extending into the socket housing 300, the circuit board being connected to a power cord of the lamp.
In an embodiment of the present application, the switch module 400 is used to control on/off of the lamp cap assembly 100. Illustratively, a first switch may be connected between the connection line and the power line, and when the first switch is closed, current may flow from the power line to the connection line, thereby powering the lighting 120 to emit light; when the first switch is turned off, the connection line is not powered, and the illuminating member 120 does not emit light. Because the lamp provided by the embodiment of the application is provided with the lamp cap assembly 100, the lamp can better disperse the light emitted by the light source, so that the illumination area has more uniform illumination, and meanwhile, the lamp also has better illumination, and an eye protection effect is achieved.
Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. The specification and examples are to be regarded in an illustrative manner only.
It is to be understood that the application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (6)
1. The lamp cap assembly is characterized in that the lamp cap assembly (100) comprises a lamp cap base (110), a lighting piece (120), a light-emitting piece (130) and a covering piece (140), and the lighting piece (120), the light-emitting piece (130) and the covering piece (140) are connected to the lamp cap base (110);
The total power of the lighting piece (120) is not less than 8W, the lighting piece (120) is provided with a plurality of light-emitting units (121) which are arranged in an array, the number of the light-emitting units (121) is not less than 54, the distance between any two adjacent light-emitting units (121) is equal, and the light-emitting units (121) are LED lamp beads;
the light-emitting component (130) is attached to the illuminating component (120), the light-emitting component (130) is provided with a plurality of dispersing units (131) which are arranged in an array, the plurality of dispersing units (131) correspond to the plurality of light-emitting units (121), the light-in surface and the light-out surface of the dispersing units (131) both comprise curved surfaces, the curved surface curvature of the light-out surface is larger than the curved surface curvature of the light-in surface, the dispersing units (131) are lenses, the lenses protrude towards the direction far away from the LED lamp beads, and the light-emitting units (121) are positioned in the concave of the light-in surface of the corresponding dispersing units (131);
The cover member (140) is attached to the light-emitting component (130), the cover member (140) is provided with a plurality of light-transmitting units (141) which are arranged in an array, the light-transmitting units (141) correspond to the plurality of dispersing units (131), the area of the light-entering end of the light-transmitting units (141) is smaller than that of the light-emitting end, the light-transmitting units (141) are light-transmitting openings, the light-transmitting openings on the cover member (140) are distributed in a honeycomb shape, the cross section of each light-transmitting opening is in a regular hexagon shape, the opening size of the part, close to the light-emitting end, of each light-transmitting opening is gradually increased in the direction away from the light-emitting unit (121), and at least one part of light-emitting surface of the lens is positioned in the corresponding light-transmitting opening;
The corresponding light-emitting units (121), the corresponding diverging units (131) and the corresponding light-transmitting units (141) are arranged in a concentric line;
The maximum irradiation angle range of the light emitting units (121) is 100-140 degrees, the maximum emergence angle range of the light beams of the light emitting units (121) after passing through the divergence units (131) is 110-160 degrees, the distance between two adjacent light emitting units (121) is 10-13mm, the incidence distance range is 1.5-2.5mm, the emergence distance range is 0.2-1mm, the size range of the light inlet ends of the light transmitting units (141) is 7-10mm, the size range of the light outlet ends is 8-11mm, wherein the irradiation angle is an included angle between the light rays emitted from the light emitting units (121) and an irradiation surface, and the emergence angle is an included angle between the light rays emitted from the divergence units (131) and the irradiation surface; the incidence distance is the maximum distance between any one of the light emitting units (121) and the light incident surface of the corresponding divergence unit (131) in a first direction, and the first direction is the positive light emitting direction of the light emitting unit; the emergent distance is the minimum distance between the emergent surface of the divergent unit (131) and the emergent end of the corresponding light transmitting unit (141) in the first direction.
2. The lamp head assembly according to claim 1, wherein the maximum illumination angle of the lighting unit (121) is 120 degrees and the maximum exit angle is 140 degrees;
The interval between the adjacent light emitting units (121) is 12mm;
the incident distance is 1.8mm, and the emergent distance is 0.7mm;
the size of the light incident end of the light transmitting unit (141) is 8mm, and the size of the light emergent end is 8.8mm.
3. The lamp head assembly of claim 2, wherein the light exit surface of the diverging unit (131) is a continuous curved surface.
4. The lamp head assembly according to claim 1, wherein the maximum illumination angle of the lighting unit (121) is 120 degrees and the maximum exit angle is 140 degrees;
the interval between the adjacent light emitting units (121) is 12mm;
the incident distance is 2mm, and the emergent distance is 0.3mm;
The size of the light inlet end of the light transmitting unit (141) is 8.6mm, and the size of the light outlet end is 9.4mm.
5. The lamp head assembly of claim 4, wherein the light exit surface of the diverging unit (131) comprises a curved surface portion (1311) and a planar portion (1312) connected to a circumferential edge of the curved surface portion (1311), a ratio of a height of the curved surface portion (1311) and the planar portion (1312) in the first direction being in a range of 2.6-3.4.
6. A lamp comprising the lamp head assembly of any one of claims 1-5.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210716039.8A CN114992544B (en) | 2022-06-22 | 2022-06-22 | Lamp holder assembly and lamp with same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210716039.8A CN114992544B (en) | 2022-06-22 | 2022-06-22 | Lamp holder assembly and lamp with same |
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| CN114992544A CN114992544A (en) | 2022-09-02 |
| CN114992544B true CN114992544B (en) | 2024-04-30 |
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| CN108506749A (en) * | 2018-05-04 | 2018-09-07 | 广州市浩洋电子股份有限公司 | A kind of optical system and the illuminator using this optical system |
| CN208546835U (en) * | 2018-07-27 | 2019-02-26 | 深圳市微阵技术有限公司 | LED light based on microlens array group |
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| CN201706336U (en) * | 2010-05-31 | 2011-01-12 | 玉晶光电股份有限公司 | Optical light-emitting device |
| KR101487617B1 (en) * | 2013-09-24 | 2015-02-02 | 희성전자 주식회사 | Diffusion lens for light emmission diode |
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|---|---|
| CN114992544A (en) | 2022-09-02 |
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