CN118129109A

CN118129109A - LED lamp with independently dimmable lens module

Info

Publication number: CN118129109A
Application number: CN202211504659.1A
Authority: CN
Inventors: 李飞
Original assignee: Shenzhen Wanjia Lighting Co Ltd
Current assignee: Shenzhen Wanjia Lighting Co Ltd
Priority date: 2022-11-28
Filing date: 2022-11-28
Publication date: 2024-06-04
Also published as: WO2024113722A1

Abstract

The invention discloses an LED lamp with an independently dimmable lens module, which comprises a lens module, a power supply-light source module and a lampshade, wherein an LED light source and an LED driving power supply are arranged in the power supply-light source module, and the lens module is an independent module which is detachably arranged together with the power supply-light source module and the lampshade; the lens module can independently execute the adjustment of the luminous angle, and the adjustment of the luminous angle of the LED lamp is realized through the adjustment operation of the lens module; and, the LED luminaire further comprises an optical power modulating assembly integrated on the lens module.

Description

LED lamp with independently dimmable lens module

Technical Field

The invention relates to the field of LED lamps, in particular to a lens module for an LED lamp and independent dimming thereof.

Background

With the progress of society, people have pursued higher pursuit of illumination, but not limited to 'illumination', especially outdoor courtyard landscape illumination, and users have more personalized demands; such as different brightness, different angles, different color temperatures, different colors, etc. If these demands are respectively corresponding to different products, the purchased SKU will be greatly increased, which is disadvantageous for production and manufacturing, cost reduction and rapid response.

In view of the foregoing market pain, there is a need in the art for a lighting device or method that allows an installer to easily and conveniently change the lighting brightness, illumination, color, etc. of a lighting device on site without requiring special tools and without compromising the waterproof performance of the luminaire, and that provides better lighting effects in real time, especially for outdoor accent lighting.

It is obvious that lamps capable of adjusting the lighting angle and power are already available on the market, but some disadvantages exist: the repeated waterproof effect is poor, the structure is complex, the cost is high, the operation is inconvenient, the misoperation is easy, and the like, and the convenience and the user friendliness are poor.

Accordingly, there is a need in the art for innovative LED lamp luminous power, luminous angle adjustment techniques to ameliorate or eliminate the above technical disadvantages, as well as other disadvantages.

The information included in this background section of the specification of the present invention, including any references cited herein and any descriptions or discussions thereof, is included solely for the purpose of technical reference and is not to be construed as a subject matter that would limit the scope of the present invention.

Disclosure of Invention

The present invention has been made in view of the above and other concepts. According to one of the main concepts of the present invention, a lens module capable of independently and manually adjusting a light emitting angle, for example, is used in an LED lamp, and a structure for adjusting light power is integrated on the module, which helps to ensure waterproof performance, helps to improve operation convenience, helps to simplify the structure, and helps to reduce manufacturing and assembly difficulties.

According to an aspect of the present invention, there is provided an LED luminaire with an independently dimmable lens module, the LED luminaire comprising a lens module, a power-light source module and a lamp housing, an LED light source and an LED driving power being mounted within the power-light source module, the lens module being an independent module detachably mounted with the power-light source module and the lamp housing; the lens module can independently execute adjustment of the luminous angle, and the adjustment of the luminous angle of the LED lamp is realized through the adjustment operation of the lens module; and, the LED luminaire further comprises an optical power modulating assembly integrated on the lens module.

According to an embodiment, the optical power conditioning assembly comprises: a shift assembly including a shift bracket integrated on the lens module; the gear shifting position piece and the conducting spring piece are fixed together, and are installed in a translational gear shifting manner relative to the gear shifting bracket; an electrical contact plate with a plurality of electrical contacts spaced apart from each other, the plurality of electrical contacts being signally connected to an optical power adjustment circuit configured to adjust optical power of the LED light source.

According to an embodiment, the conductive spring is a metal spring having a U-shaped slot pivotable about a pivot pin, wherein the electrical contact plate is fitted in the U-shaped slot of the conductive spring such that electrical contacts on both sides of the electrical contact plate are in conductive contact with the conductive spring; or alternatively

The conducting spring plate is a single-sided contact conducting spring plate, and the single-sided electric contact of the electric contact plate and the conducting spring plate are kept in conductive contact through elastic force.

According to an embodiment, the shift position member is slid in translation relative to the electrical contact plate, and the conductive spring contacts different electrical contacts and thereby different optical power adjustment circuits, thereby achieving shifting of optical power.

According to one embodiment, the pivot pin is fitted in a mounting hole on the shift position member

According to one embodiment, the U-shaped slot is provided with a constriction.

According to an embodiment, the shift support is provided with a plurality of shift marks, which correspond one-to-one to a plurality of electrical contacts spaced apart from one another, wherein the shift support is integrated on the first adjusting support of the lens module.

According to an embodiment, the shift position member is provided with an indication mark pointing to the shift position mark, wherein the shift position member is fitted on the shift support and is movable in translation relative to the shift support.

According to an embodiment, the conducting spring plate is mounted on the shift position member, so that the conducting spring plate and the shift position member can translate together relative to the shift bracket, and shift position regulation of optical power is performed.

According to an embodiment, the optical power conditioning assembly comprises: a shift assembly including a shift bracket constructed of arc segments integrated on the lens module; a gear shifting position piece and a conductive spring needle fixed with the gear shifting position piece, wherein the conductive spring needle is rotatably and gear-shifted relative to the gear shifting bracket; an electrical contact plate with a plurality of electrical contacts spaced apart from each other, the plurality of electrical contacts being signally connected to an optical power adjustment circuit configured to adjust optical power of the LED light source.

According to an embodiment, the optical power adjustment circuit comprises an EMI and rectifying filter circuit, a resistance control circuit and a control output current circuit, wherein the resistance control circuit is configured to output different electrical signals according to input signals of different positions of the gear shifting assembly (for example, by matching resistors with different resistance values, and outputting electrical signals corresponding to different resistance values), and further, the working current output to the LED light source is controlled by the different electrical signals.

According to an embodiment, the optical power adjusting circuit comprises an EMI and rectifying filter circuit, an MCU control circuit and a control output current circuit, wherein the MCU control circuit is configured to output different electrical signals (for example, to output PWM waves with different duty cycles) according to input signals at different positions of the gear shifting assembly, and further to control the working current output to the LED light source through the different electrical signals.

According to one embodiment, the lens module comprises a first adjustment bracket, a lens-pin sleeve assembly and a second adjustment bracket which are nested together in sequence; wherein the first adjustment bracket and the shift assembly comprise a shift bracket of arcuate segment construction integrated on the lens module; a shift position member, and a conductive spring pin secured therewith, the second adjustment bracket being rotatable relative to the shift bracket to enable relative rotation therebetween, thereby causing axial translation of the lens-sleeve assembly nested therebetween relative to the first adjustment bracket.

According to one embodiment, a pair of axially extending limiting grooves are formed in the hollow cylinder wall of the first adjusting bracket; wherein the lens-pin sleeve assembly comprises a lens body, an optical lens sheet, a pair of pin shafts positioned on the lens body and a pair of linkage pin sleeves assembled on the pair of pin shafts, wherein the pair of pin shafts are clamped into the pair of limit grooves and can translate in the axial direction relative to the limit grooves in a linkage manner with the lens-pin sleeve assembly; wherein, a pair of spiral convex ribs are arranged on the cylinder wall of the second adjusting bracket; wherein, a pair of sliding grooves which are matched with the pair of spiral convex ribs and move in a relative spiral sliding way are correspondingly arranged on the pair of linkage pin sleeves; wherein relative helical sliding movement of the pair of helical ribs of the second adjustment bracket relative to the pair of runners of the lens-sleeve assembly results in axial translation of the lens-sleeve assembly relative to the first adjustment bracket.

According to an embodiment, an angle scale mark is arranged on the hollow cylinder wall of the first adjusting bracket, and an indication mark corresponding to the angle scale mark is arranged on the linkage pin sleeve of the lens-pin sleeve assembly.

According to an embodiment, the pin shaft extends from the boss, and a clamping groove tightly matched with the boss is further formed in the linkage pin sleeve.

According to one embodiment, each of the pair of interlocking pin sleeves is provided with a fitting hole which is in close fit with the pin shaft.

According to an embodiment, the lens module is capable of adjusting the light emitting angle of the LED lamp within a range of 10-100 degrees.

According to an embodiment, the optical power adjustment circuit is integrated with a drive circuit board in the power-light source module; wherein the plurality of electrical contacts are electrically connected to or signal coupled to the optical power conditioning circuit.

According to an embodiment, the lens module is exchangeable.

According to an embodiment, the LED luminaire comprises an LED spotlight.

According to one embodiment, the lens module includes a first adjustment bracket, a second adjustment bracket, and a lens-pin sleeve assembly nested together; wherein the first and second adjustment brackets are rotatable relative to each other to cause axial translation of the lens-sleeve assembly nested therebetween relative to the first adjustment bracket.

According to one embodiment, a pair of axially extending limiting grooves are formed in the hollow cylinder wall of the first adjusting bracket; wherein the lens-pin sleeve assembly comprises a lens body, an optical lens sheet, a pair of pin shafts positioned on the lens body and a pair of linkage pin sleeves fixedly assembled on the pair of pin shafts, the pair of linkage pin sleeves are matched in the pair of limit grooves and can axially translate relative to the limit grooves in linkage with the lens-pin sleeve assembly; wherein, a pair of spiral convex ribs are arranged on the cylinder wall of the second adjusting bracket; the pair of linkage pin sleeves are correspondingly provided with a pair of sliding grooves which are matched with the pair of spiral ribs and slide relatively; wherein relative sliding movement of the pair of runners of the pair of linkage pins relative to the pair of helical ribs of the second adjustment bracket causes axial translation of the lens-pin sleeve assembly relative to the first adjustment bracket.

According to an embodiment, the relative sliding movement of the pair of sliding grooves relative to the pair of spiral ribs causes the pair of sliding grooves to perform spiral movement relative to the second adjusting bracket, and therefore the pair of linkage pin sleeves generate relative axial translation in the pair of limiting grooves, so that the whole lens-pin sleeve assembly is driven to generate axial translation relative to the first adjusting bracket.

According to an embodiment, the boss is an oblique square boss, the pin shaft extends out from the oblique Fang Tutai, and the linkage pin sleeve is further provided with a clamping groove tightly matched with the oblique Fang Tutai; and the linkage pin sleeve is also provided with an assembly hole which is tightly matched with the pin shaft.

According to one embodiment, the chute is a chute configured to mate with the helical rib and capable of relative sliding movement.

According to an embodiment, the runner is configured to receive the corresponding helical rib in a loose fit and to perform a helical sliding movement relative to the helical rib. That is, the movement of the chute relative to the helical rib is free in the circumferential direction, guided only by the helical rib, guided and constrained in the axial displacement component by the helical shape, and limited in the radial direction.

According to an embodiment, the first adjustment bracket, the lens body and the second adjustment bracket each integrally comprise a hollow cylindrical portion.

According to an embodiment, a pair of inner barrel wall sections may be further provided on the barrel wall of the second adjusting bracket.

According to an embodiment, the lens module is capable of adjusting the light emitting angle of the LED lamp within a range of 18-60 degrees.

According to an embodiment, the lens module is capable of adjusting the light emission angle of the LED luminaire in the range of 18 ° -36 ° or 20 ° -46 °.

According to an embodiment, the lens module is exchangeable.

According to an embodiment, the LED luminaire comprises an LED spotlight.

According to an embodiment, the fixed position of the lens module mounted on the LED spotlight is not adjustable.

According to an embodiment, the second adjusting bracket may have a convex bone formation thereon. The rib formation may form a spiral rib structure.

According to an embodiment, the movement of the pair of sliding grooves relative to the first adjusting bracket is constrained by the pair of limiting grooves in the circumferential direction, so that only axial translation can be performed.

According to an embodiment, the second adjusting bracket is provided with a pair of inner cylinder wall sections which are positioned radially inside the pair of spiral ribs and whose axial height is higher than that of the pair of inner cylinder wall sections; the lens body is nestable inside a cylinder defined by the pair of inner cylinder wall segments and the first adjustment bracket is nestable outside a cylinder defined by the pair of inner cylinder wall segments.

According to an embodiment, the lens module is exchangeable.

According to an embodiment, the adjustment operation of the lens module itself is a manual operation.

According to an embodiment, the adjustment operation of the lens module itself is performed after the lens module is detached from the LED spotlight.

According to an embodiment, the LED lamp comprises a lamp body, a lens module and a lampshade, wherein the lens module and the lampshade are detachably mounted on the lamp body. The lamp body, the lens module and the lampshade are assembled together in sequence.

According to an embodiment, different light emitting angle adjustment ranges of the LED spot lamp are achieved by adjusting the lens module itself, or by changing different ones of the lens modules.

According to an embodiment, the LED luminaire may be selected from one of an outdoor LED spotlight, a landscape lighting LED lamp, a spot lighting LED lamp and a flood lighting LED lamp, in particular a high power outdoor LED spotlight, a courtyard LED spotlight, a landscape lighting LED spotlight, etc.

Further embodiments of the invention also enable other advantageous technical effects not listed one after another, which may be partly described below and which are anticipated and understood by a person skilled in the art after reading the present invention.

Drawings

The above-mentioned and other features and advantages of these embodiments, and the manner of attaining them, will become more apparent and the invention and embodiments thereof will be better understood by reference to the following description and the accompanying drawings.

Fig. 1 is a schematic exploded view showing an LED spotlight with an independently dimmable lens module according to a first embodiment of the present invention, schematically illustrating the constituent modules of the LED spotlight.

Fig. 2 is an exploded schematic view of the construction of the LED spotlight of fig. 1, further schematically illustrating the composition and construction of the independently dimmable lens module of fig. 1.

Fig. 3A is an enlarged exploded schematic view of the construction of the LED spotlight of fig. 2, further schematically showing details of the construction of the individually dimmable lens module of fig. 1.

Fig. 3B is a schematic enlarged perspective view of the lens module of fig. 3A after the components are assembled together, taken along the longitudinal direction.

Fig. 4 is a schematic diagram showing how the independently dimmable lens modules of fig. 1-3 are individually independently adjustable.

Fig. 5 shows a schematic view of how the adjusted lens module of fig. 4 is assembled into an LED luminaire.

Fig. 6 is a schematic exploded view showing an LED spotlight with an independently dimmable lens module and an optical power conditioning assembly mounted thereon according to a second embodiment of the present invention.

FIG. 7 is a further schematic exploded view of the LED spotlight of FIG. 6, showing an exploded view of the LED spotlight and its light power conditioning assembly portion.

Fig. 8 is a schematic view of a lens module of the LED spot light of fig. 6-7, further illustrating the optical power conditioning assembly and its mounting details.

Fig. 9 is a schematic view of another view of the lens module of the LED spotlight of fig. 6-7, further illustrating the optical power conditioning assembly and the circuit board attached thereto.

Fig. 10 shows a schematic view of the electrode/electrical contact arrangement on the front side of the electrical contact plate in this second embodiment.

Fig. 11 shows a schematic view of the electrode/electrical contact arrangement on the back side of the electrical contact plate in this second embodiment.

Fig. 12 is a schematic exploded view showing an LED spotlight with an independently dimmable lens module and an optical power conditioning assembly mounted thereon according to a third embodiment of the present invention.

FIG. 13 is a schematic view of a lens module of the LED spotlight of FIG. 12, further illustrating the light power conditioning assembly and its mounting details.

Fig. 14 is a schematic view of another view of the lens module of the LED spotlight of fig. 12-13, further illustrating the optical power conditioning assembly and the circuit board attached thereto.

Fig. 15 shows a schematic view of the electrode/electrical contact arrangement on the front side of the electrical contact plate in this third embodiment.

Fig. 16 shows a schematic view of the electrode/electrical contact arrangement on the back side of the electrical contact plate in this third embodiment.

Fig. 17 is a schematic exploded view showing an LED spotlight with an independently dimmable lens module and an optical power conditioning assembly mounted thereon according to a fourth embodiment of the present invention.

Fig. 18 is a schematic perspective view of a lens module of the LED spot light of fig. 17 showing the light power control assembly and its mounting details.

Fig. 19 is a schematic view of a lens module of the LED spot light of fig. 17-18, further illustrating the optical power conditioning assembly and its mounting details.

Fig. 20 is a schematic view of another view of the lens module of the LED spotlight of fig. 17-19, further illustrating the optical power conditioning assembly and the circuit board attached thereto.

Fig. 21 shows a schematic view of the electrode/electrical contact arrangement of the electrical contact plate in this fourth embodiment.

Fig. 22 shows a schematic functional block diagram of an embodiment of controlling and regulating the light power adjustment of the LED spot light of the present invention by an MCU.

Fig. 23 shows a schematic diagram of an example of a circuit for optical power adjustment by the MCU shown in fig. 22.

Fig. 24 shows a schematic functional block diagram of an embodiment of the light power adjustment of the LED spotlight of the present invention by resistance control and adjustment.

Fig. 25 shows a schematic diagram of an example of a circuit for optical power adjustment by resistance shown in fig. 24.

Detailed Description

The details of one or more embodiments of the invention are set forth in the accompanying drawings and the description below. Other features, objects, and advantages of the invention will be apparent from the description and drawings, and from the claims.

It is to be understood that the illustrated and described embodiments are not limited in application to the details of construction and the arrangement of components set forth in the following description or illustrated in the drawings. The illustrated embodiments may be other embodiments and can be implemented or performed in various ways. Examples are provided by way of explanation, not limitation, of the disclosed embodiments. Indeed, it will be apparent to those skilled in the art that various modifications and variations can be made to the various embodiments of the invention without departing from the scope or spirit of the disclosure. For example, features illustrated or described as part of one embodiment can be used with another embodiment to yield still a further embodiment. Accordingly, the present disclosure is intended to cover such modifications and variations as fall within the scope of the appended claims and their equivalents.

In the description of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

The term "adjusting the light emission angle" refers to operating an optical lens module in an LED lamp, including but not limited to optically focusing, adjusting the distance between an optical lens and an LED light source, replacing the optical lens itself, etc., to achieve the purpose of adjusting the light emission angle of the LED lamp.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. The use of "including," "comprising," or "having" and variations thereof herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items.

The present invention will be described in more detail below with reference to specific embodiments thereof.

First embodiment

As shown in fig. 1, a schematic exploded view of an LED spotlight with an independently dimmable lens module according to a first embodiment of the present invention is shown, schematically illustrating the constituent modules of the LED spotlight. The LED spot lamp includes a lamp housing 100, a lamp body 300, and a lens module 200 installed in the lamp body 300 and interposed between the lamp housing 100 and the lamp body 300. According to one or more examples, other modules and components are provided inside the lamp body 300, including, for example, an LED driving power module, a light source module having an LED light source and an LED circuit board, and the like; in addition, the lamp body 300 may be provided with a mounting bracket and a hollow inner structure to facilitate the arrangement and installation of various components therein, as shown in fig. 1, which are prior art techniques that can be understood by those skilled in the art and can be implemented without inventive labor, and will not be described herein.

Fig. 2 is an exploded schematic view of the construction of the LED spotlight of fig. 1, further schematically illustrating the composition and construction of the independently dimmable lens module 200 of fig. 1. As shown in fig. 3A, the lens module 200 may include a first adjustment bracket 210 with a limiting slot 212, a second adjustment bracket 230 with ribs, and an optically-focusable lens-pin sleeve assembly 220 nested between the first and second adjustment brackets 210 and 230. The first adjustment bracket 210, the lens-pin sleeve assembly 220, and the second adjustment bracket 230 are sequentially nested together to assemble a self-independently dimmable lens module 200, as shown in fig. 1-5. The first and second adjustment brackets 210 and 230 are rotatable with respect to each other, i.e., a user can screw the first and second adjustment brackets 210 and 230 in opposite directions with both hands alone, thereby driving the lens-pin sleeve assembly 220 nested therebetween to translate back and forth along the central axis direction (i.e., illumination direction) of the lamp with respect to the first adjustment bracket 210, thereby achieving focusing and changing the light emitting angle effects, as described in detail below.

Fig. 3A is an enlarged exploded schematic view of the construction of the LED spotlight of fig. 2, further schematically showing details of the construction of the individually dimmable lens module 200 of fig. 1. Fig. 3B is a schematic enlarged perspective view of the lens module 200 of fig. 3A after assembly of the components together, taken along the longitudinal direction, illustrating the principal construction and concept of one embodiment of the relative helical sliding motion to facilitate translational motion in the axial direction.

As shown in fig. 3A-3B, a pair of limiting grooves 212 extending in the axial direction are formed on the first adjusting bracket 210 in a hollow cylindrical shape in the opposite direction in the diameter direction on the cylinder, and only one limiting groove 212 is completely shown in fig. 3A, but the other limiting groove 212 is formed on the wall of the opposite cylinder in the diameter direction. Along the axial extension length direction of the limit groove 212, a scale mark 211, such as a lighting angle of 20 ° -60 ° or more, can be conveniently arranged (e.g. printed) on the groove 212. One or more (e.g., a pair of diametrically opposed) radially inwardly extending flanges 213 may also optionally be provided on the cylinder of the first adjustment bracket 210, as shown in fig. 3A-3B, to facilitate guiding and/or limiting functions when the user is screwing the adjustment, as described in more detail below.

A plurality of spiral ribs protruding radially outwards are formed on the cylindrical wall of the second regulating bracket 230, which may be tapered at the same end as the whole, in a hollow cylindrical shape. For example, as shown in fig. 3A, a pair of spiral ribs 231 and 232 protruding radially outwardly are formed at diametrically opposite positions of the circumferential cylinder wall of the second regulation bracket 230, the spiral directions of the pair of spiral ribs 231 and 232 being the same, but their extending heights on the cylinder circumferential wall are preferably substantially the same, that is, are disposed substantially diametrically opposite. The directions in which the two ribs extend are opposite, i.e., one rib (spiral rib 231) spirals up along the cylindrical wall of the second adjustment bracket 230 and the opposite other rib (spiral rib 232) spirals down along the cylindrical wall of the second adjustment bracket 230, as seen in a direction perpendicular to fig. 3A, but their spiral directions are virtually identical. Between the pair of helical ribs 231 and 232, a pair of smaller diameter inner barrel wall sections 233 and 234 are coaxially provided on the barrel wall of the second adjustment bracket 230, forming a wall section structure similar to the radially inner side wall as shown.

The lens-sleeve assembly 220, which is nested within the first and second adjustment brackets 210, 230 after assembly, has, for example, a generally hollow frustoconical shape with a slightly tapered end to facilitate nesting and self-assembly, although other suitable shapes may be provided. An optical lens plate (or set of optical lens plates) 223 may be mounted within a hollow, generally frustoconical lens body 222 of the lens-sleeve assembly 220, with a pair of pins 221 radially projecting from, for example, a generally square boss 224 disposed (e.g., fixedly mounted or integrally formed) at diametrically opposed locations on the barrel wall thereof, and a pair of interlocking pins 240 may be fitted over the pair of pins 221 with a tight fit. Of course, those skilled in the art will appreciate that the lens may be of any suitable configuration, for example, the lens body 222, optical lens sheet 223 and pin 221 may be of unitary configuration, or may be of other integrally assembled form, and the overall configuration may be of other configurations and forms other than cylindrical or hollow frustum, so long as it is capable of disposing a pin and a linkage, such as a linkage pin sleeve.

The pair of pins 221 and the interlocking pin sleeve 240 (described below) are caught in the limiting groove 212 and radially protrude out after the optical lens module 200 is assembled, and are movable along the axial length of the limiting groove 212 in the limiting groove 212 when the first and second adjustment brackets 210 and 230 are rotatably adjusted with respect to each other, thereby driving the entire lens-pin sleeve assembly 220 to perform an axial translational movement with respect to the first adjustment bracket 210 for optical angle adjustment.

Specifically, a pair of interlocking pin sleeves 240 may be fitted (fixedly fitted) on the pair of radially protruding pin shafts 221. The interlocking pin sleeve 240 is preferably an integral piece including a mating hole 242, which may be polygonal (shown as hexagonal) as shown in fig. 3A-3B, for example, and a catch 243 that catches on the angular boss 224. The hexagonal mating holes 242 of the linkage pin sleeve 240 facilitate a tight fit with the pin shaft 221, and the clamping grooves 243 of the linkage pin sleeve 240 are tightly clamped on the boss 224 after being assembled to the pin shaft 221, thereby further facilitating the fixed assembly of the linkage pin sleeve 240 with the pin shaft 221 and the reliable linkage with the lens-pin sleeve assembly 220.

Importantly, the interlocking pin sleeve 240 is also provided with a slide groove 241, i.e., the pair of interlocking pin sleeves 240 shown in fig. 3A-3B are each provided with an inclined slide groove 241 to accommodate the respective corresponding helical ribs 231 and 232 when the optical lens module 200 is assembled, it being apparent that the slide groove 241 is preferably a chute, as shown in fig. 3A-3B, configured, sized and oriented to match the shape and spatial orientation of the helical ribs to facilitate a smooth loose fit and a relatively smooth sliding. When an operator screws the adjusting optical lens module 200, the sliding groove 241 can perform a spiral sliding motion relative to the corresponding spiral ribs 231 and 232, so that the pin shaft 221 fixedly assembled with the linkage pin sleeve 240 moves up and down in the limiting groove 212 along the axial direction, thereby driving the lens-pin sleeve assembly 220 to move up and down along the axial direction, and adjusting the adjusting optical angle and/or focusing the lens are realized.

Of course, those skilled in the art will appreciate that the foregoing description and illustrations are by way of example only, and that other configurations and techniques for achieving secure assembly of the linkage pin sleeve 240 with the pin shaft 221 and secure linkage with the lens-pin sleeve assembly 220 will occur to those skilled in the art.

The linkage pin sleeve 240 may further carry an arrow mark, which indicates, for example, the angle of illumination at the location of the lens-pin sleeve assembly 220 as the pin shaft 221 of the lens-pin sleeve assembly 220 translates up and down within the limit slot 212, as shown in fig. 3A-4.

As shown in fig. 3B, in addition to illustrating the sliding movement mating relationship of the slide groove 241 of the link pin sleeve 240 with the spiral ribs 231 and 232, the engagement between the flange 213 of the first adjustment bracket 210 and the radially inward recessed undercut 235 provided at the lower end of the second adjustment bracket 230 is illustrated according to one example. Specifically, when the operator screws the optical lens module 200, the flange 213 can slide with respect to the back-off portion 235, thereby performing guiding and limiting functions. Of course, those skilled in the art will recognize that the pair of features are optional and may be modified and substituted without affecting the implementation of the basic inventive concept.

Fig. 4 is a schematic diagram illustrating how the independently dimmable lens modules 200 shown in fig. 1-3 are individually independently adjusted. As shown in fig. 4, a user, for example, a factory or engineering commissioner holds the first and second adjustment brackets 210 and 230 with both hands, respectively, to perform a screwing adjustment operation in opposite directions to each other, so that the spiral ribs 231 and 232 of the second adjustment bracket 230 can be loosely fitted in the sliding grooves 241 of the corresponding linkage pin sleeve 240 fixedly installed on the cylinder wall of the lens-pin sleeve assembly 220, relatively spirally slide, and be restrained by the restraining grooves 212 to be translatable up and down in the axial direction, the lens-pin sleeve assembly 220 nested therebetween is also driven to translate in the axial direction together with the linkage pin sleeve 240 with respect to the second adjustment bracket 230, thereby achieving adjustment of focusing and optical angles, and the optical angle values can be displayed with the scales of the linkage pin sleeve 240 and the scale marks 211 after the adjustment is in place. During the screwing adjustment movement of the first adjustment bracket 210 and the second adjustment bracket 230 in opposite directions to each other, the pair of inner cylinder wall sections 233 and 234 provided on the cylinder wall of the second adjustment bracket 230 cooperate with the spiral ribs 231 and 232 to perform the function of circumferential guiding and radial restraining the sliding of the sliding groove 241 of the link pin bush 240 with respect to the spiral ribs 231 and 232. In addition, during the screwing adjustment described above, the radially inner side surfaces of the inner cylinder wall sections 233 and 234 may also cooperate with and be restrained by radially outwardly projecting, vertically extending ribs on the lens body 222 shown in fig. 3A to ensure a reliable and smooth sliding of the runner 241 relative to the helical ribs 231 and 232. As shown in fig. 3A-3B, the inner cylinder wall segments 233 and 234 are inner circumferential wall segments radially inward of the helical ribs 231 and 232 and axially higher than the helical ribs 231 and 232, and are preferably diametrically opposed, through which the pin shaft 221 can pass after assembly in place. There is a circumferentially extending radial gap between the inner barrel wall sections 233 and 234 and the corresponding helical ribs 231 and 232 (and further circumferentially extending helical ribs thereof) that can be large enough to radially accommodate the respective linkage pin sleeve 240 and ensure smooth and reliable relative movement between the relevant components of the lens module 200 during relative helical movement. The spiral beads 231 and 232 are located radially inward of the spiral beads 231 and 232 as shown in the drawing, and have an axial height higher than that of the spiral beads 231 and 232. The radial dimensions of the helical ribs 231 and 232 may be designed such that the inner side of the cylindrical shape defined thereby is capable of telescoping the lens body 222 and the outer side of the cylindrical shape defined thereby is capable of telescoping the first adjustment bracket 210.

Although the inner barrel wall sections 233 and 234 are shown as a pair (i.e., two), it will be appreciated by those skilled in the art that the number of inner barrel wall sections may be one or more than two and remain within the scope of the invention.

As shown in fig. 4, since the lens module 200 can independently adjust the light emitting angle and focus independently of the lamp body of the LED lamp, the lens module 200 can be manually adjusted before being assembled in a factory, on site or in real time on site, and then be mounted on the LED spotlight and the LED spotlight is mounted in place, without adjusting and focusing the light emitting angle during or after the mounting of the LED, thus greatly increasing the convenience of adjustment and reducing the difficulty and cost of mounting, maintenance and replacement.

Fig. 5 shows a schematic view of how the adjusted lens module of fig. 4 is assembled into an LED luminaire. As shown in fig. 5, after the adjustment of the lens module 200 is completed, the lens module 200 is mounted on the lamp body 300, and then the lamp housing 100 is mounted, so that the LED spot lamp having the light emitting angle adjusted is assembled. For example, when the lighting effect of the spotlight needs to be changed, only the LED spotlight needs to be taken down, and the lens module with different lighting effects is adjusted or replaced. Therefore, the LED lamp with the independently dimmable lens module, such as an LED spot lamp, can be directly used for field installation, field maintenance or field replacement, so that the user friendliness is greatly improved, the installation and debugging cost is reduced, and the safety and reliability of field installation and debugging are even improved.

In the invention, the luminous angle of the independently adjustable lens module of the LED lamp (such as an LED spotlight) can be adjusted within the range of 10-100 degrees, preferably within the range of 18-60 degrees. For example, it is more preferably adjustable in the range of 18 ° -36 °, or in the range of 20 ° -46 °.

Second embodiment

An LED spotlight with an independently dimmable lens module according to a second embodiment of the present invention will be described below with reference to the accompanying drawings. In addition to the configuration and function of the first embodiment in which the light emission angle/focus can be adjusted individually and independently, the lens module thereof (in combination with other related configurations/designs) can also achieve light power regulation of the LED light source.

Fig. 6 is a schematic exploded view showing an LED spotlight with an independently dimmable lens module and an optical power conditioning assembly mounted thereon according to a second embodiment of the present invention. FIG. 7 is a further schematic exploded view of the LED spotlight of FIG. 6, showing an exploded view of a portion of the LED spotlight and its light power conditioning assembly. Fig. 8 is a schematic view of a lens module 300' of the LED spot light of fig. 6-7, further illustrating the optical power conditioning assembly and its mounting details. Fig. 9 is a schematic view of another view of the lens module of the LED spotlight of fig. 6-7, further illustrating the optical power conditioning assembly and the circuit board attached thereto. Fig. 10-11 show schematic views of the electrode/electrical contact arrangement on the front and back of the electrical contact plate in this second embodiment.

The lamp housing 100', the lamp body 300', the lens module 200', and the power-light source module (401; 402;300 ') of the LED spot lamp of the second embodiment are substantially similar to those of the first embodiment, for example, a pair of link pins 240' and corresponding pins or the like are also provided so that they can be independently screwed to self-adjust the light emission angle, and the like. The main difference is that an optical power regulation assembly and a driving power supply 402 associated therewith are added to the independent lens module 200'.

As shown in fig. 6 to 9, in the LED spotlight of this second embodiment, a shift bracket 250 for adjusting the optical power is fixedly installed or integrated at a radially inwardly extending flange 213 'on the cylinder of the first adjustment bracket 210'. The conductive spring 261 and the pivot pin 263 are assembled and, for example, tightly fit into corresponding sockets (e.g., as shown in fig. 7-9) of the shift position member 260, the pivot pin 263 fits around the U-shaped bottom portion of the U-shaped slot of the conductive spring 261 and is inserted and rotatably fitted into a mounting hole (as shown in fig. 7) on the shift position member 260 at the time of assembly, so that the conductive spring 261 can pivot slightly about the pivot pin 263 to adjust the position, particularly when the assembly of the electrical contact plate 403 and the driving power source 402 is not completely perpendicular to each other (e.g., both are not completely perpendicularly assembled/connected) so that adjustment of the state of the electrical contact plate 403 fitted in the U-shaped slot of the conductive spring 261 is required. The shift position member 260 is mounted on the shift bracket 250 and is movable relative to its translation (in direction a) for optical power shift control, as shown in fig. 7-9. Gear indicators 251, such as 1,2,3,4,5, etc., are provided on the shift bracket 250. An arrow mark 262 is provided on the shift position member 260 to point to a specific shift position such as 1,2,3,4, etc. corresponding to the shift position designation when shifting in translation. The electrical contact plate 403 electrically/signally connected to the driving power source 402 is inserted into the U-shaped slot of the conductive spring 261 and is held and held in double-sided reliable electrical contact by its spring force. The pass-through tab 261 is in one example a metal tab with a U-shaped slot, preferably with a constriction to provide improved clamping force. The electrical contact plate 403 fits in the U-shaped slot of the conductive spring 261 such that the corresponding electrical contact of the electrical contact plate 403 is in conductive contact with the conductive spring 261 and shift position member 260. By making the shift position member 260 and the conductive spring 261 slide in a translational manner relative to the shift bracket 250 and the electric contact plate 403, the conductive spring 261 is caused to contact and conduct the upper and lower electric contact points of different gears on the electric contact plate 403, so that the driving circuits of different gears are connected, and shift of optical power is realized.

Fig. 10-11 show upper and lower contacts 4031 and 4033 on the front side of electrical contact plate 403 (the plurality of electrical contacts corresponding to different gear positions, respectively), and upper and lower contacts 4032 and 4034 on the back side of electrical contact plate 403 (the plurality of lower contacts corresponding to different gear positions, respectively). An upper contact 4031;4032 is in electrical contact with the conductive dome 261 and shift position member 260 and corresponds to different gear positions (different gear positions correspond to different electric powers). The electrical contact plate 403 is in communication with an optical power conditioning circuit/drive power supply 402 configured to condition the optical power of the LED light source of the LED spotlight, as described in more detail below.

Third embodiment

An LED spotlight with an independently dimmable lens module according to a third embodiment of the present invention will be described below with reference to the accompanying drawings. In addition to the configuration and function of the first embodiment in which the light emission angle/focus can be adjusted individually and independently, the lens module thereof (in combination with other related configurations/designs) can also achieve light power regulation of the LED light source.

Fig. 12 is a schematic exploded view showing an LED spotlight with an independently dimmable lens module and an optical power conditioning assembly mounted thereon according to a third embodiment of the present invention. FIG. 13 is a schematic view of a lens module of the LED spotlight of FIG. 12, further illustrating the light power conditioning assembly and its mounting details. Fig. 14 is a schematic view of another view of the lens module of the LED spotlight of fig. 12-13, further illustrating the optical power conditioning assembly and the circuit board attached thereto. Fig. 15 shows a schematic view of the electrode/electrical contact arrangement on the front side of the electrical contact plate in this third embodiment. Fig. 16 shows a schematic view of the electrode/electrical contact arrangement on the back side of the electrical contact plate in this third embodiment.

The lamp housing, lamp body, lens module, power-light source module of the LED spotlight of this third embodiment are basically similar to those of the first and second embodiments, for example, the interlocking pin bush 240 'and pin shaft etc. are also provided on the cylinder of the first adjustment bracket 210' so that it can be independently screwed to self-adjust the light emission angle, etc. Also, similar to the second embodiment, a translatable (in direction a) shift optical power modulating assembly is also provided. The difference is that the second and third embodiments each employ a manner and configuration of shift contact of shift position member-electric contact plate different from each other. The second embodiment adopts a double-sided contact mode of the conductive spring 261 with the U-shaped slot and the electric contact plate, while the third embodiment realizes the conductive switching of different gears through single-sided conductive contact with the electric contact plate and a translational gear shifting mode.

As shown in fig. 13 to 16, in the LED spotlight of this third embodiment, a shift bracket 250' for adjusting the light power is fixedly installed or integrated at a portion where the link pin bush 240' is provided, i.e., at a radial flange (shown in fig. 14) on the cylinder of the first adjustment bracket 210 '. Shift position member 260 'is mounted on shift bracket 250' and is movable in translation relative thereto for optical power shift control, as shown. A gear indicator 251 '(shown in fig. 13), such as 1,2,3,4,5, etc., is provided on the shift bracket 250'. An arrow mark 262' is provided on the shift position member 260' to point to a specific shift position such as 1,2,3,4,5, etc. corresponding to the shift position mark 251' when shifting in translation.

The shift position member 260 'may be mainly composed of, for example, a spring 265', a first spring piece bracket 263', a second spring piece bracket 264', and a conductive spring piece 261 'assembled on the shift position member body 260'. The electrical contact plate 403 'electrically/signally connected to the driving power source 402' is in electrical contact with the conductive dome 261 'and can be held in single-sided, reliable electrical contact therewith by the elastic force of the spring 265'. The conducting spring plate 261 'is in conductive contact with 5 pairs of electric contacts (corresponding to 5 gears) 4031' at the upper part of the electric contact plate 403', and is conducted through 5 electric contacts (corresponding to 5 gears) 4033' respectively arranged on the front side and the back side of the lower part of the conducting circuit; 4034 'to drive the drive circuits of 5 different gear positions on the drive power supply 402', and realize the gear shifting of the optical power. The relative translational sliding of the shift position member 260' and the conductive spring 261' relative to the shift bracket 250' and the electrical contact plate 403' causes the conductive spring 261' to contact and conduct the 5 pairs of electrical contacts 4031' (corresponding to 5 shift positions) of different shift positions on the electrical contact plate 403' and conduct the driving circuits of different shift positions, thereby realizing shift control of optical power.

Fourth embodiment

An LED spotlight with an independently dimmable lens module according to a fourth embodiment of the present invention is described below with reference to fig. 17-21. In addition to the configuration and function of the first embodiment in which the light emission angle/focus can be individually and independently adjusted, the lens module of the fourth embodiment (in combination with other related configurations/designs) can also achieve light power regulation of the LED light source.

Fig. 17 is a schematic exploded view showing an LED spotlight with an independently dimmable lens module and an optical power conditioning assembly mounted thereon according to a fourth embodiment of the present invention. Fig. 18 is a schematic perspective view of a lens module of the LED spot light of fig. 17 showing the light power control assembly and its mounting details. Fig. 19 is a schematic view of a lens module of the LED spot light of fig. 17-18, further illustrating the optical power conditioning assembly and its mounting details. Fig. 20 is a schematic view of another view of the lens module of the LED spotlight of fig. 17-19, further illustrating the optical power conditioning assembly and the circuit board attached thereto. Fig. 21 shows a schematic view of the electrode/electrical contact arrangement of the electrical contact plate in this fourth embodiment.

The lamp housing, lamp body, lens module, power-light source module of the LED spotlight of this fourth embodiment are basically similar to those of the first and second embodiments, for example, the interlocking pin bush 240 'and pin shaft etc. are also provided on the cylinder of the first adjustment bracket 210' so that they can be independently screwed to self-adjust the light emission angle, etc. Also, similar to the first and second embodiments, there is also provided an adjustable-speed optical power adjustment assembly. The difference is that the first and second embodiments employ a translational shift design, while the fourth embodiment employs a rotational shift and configuration, and the switching of different gear positions is achieved by means of a rotational (in the rotational direction R) shift.

More specifically, as shown in fig. 17 to 21, in the LED spotlight of this fourth embodiment, a shift bracket 260 "for adjusting the optical power, for example, constructed in conformity with an arc-shaped section extending circumferentially of the first adjustment bracket (on which a shift position mark may be provided), is fixedly installed or integrated at a portion where the interlocking pin 240 'is provided, i.e., at a radial flange, for example, on the cylinder of the first adjustment bracket 210' (for example, by a pin-pin hole manner), a shift position piece 262", for example, which may be provided with an arrow mark, is rotatably provided at a lower portion of the shift bracket 260", and further a pair of conductive pins 261" is fixed by a snap fit at a lower portion of the shift position piece 262", as shown in fig. 18 after assembly.

When shift position member 262 "and conductive pins 261" are rotated in direction R relative to shift bracket 260", the pair of conductive pins 261" respectively engage pairs of electrical contacts 4031 "on electrical contact plate 403" thereunder; 4032 "(5 pairs in total, representing 5 gears) is in contact. Pairs of electrical contacts 4031 "on the electrical contact plate 403"; 4032 "is in turn in electrical/signal connection with the drive circuitry of the different gear on the drive power supply 402" by means of wire 263", thereby effecting a shift control of the optical power.

Regulating and controlling optical power/brightness by MCU

An embodiment of the light power adjustment of the LED spot light of the present invention by the MCU control and adjustment is briefly described below with reference to fig. 22-23. Fig. 22 shows a schematic functional block diagram of an embodiment of controlling and regulating the light power adjustment of the LED spot light of the present invention by an MCU. Fig. 23 shows a schematic diagram of an example of a circuit for optical power adjustment by the MCU shown in fig. 22.

An MCU control circuit is provided on the circuit board, and a gear regulating program is arranged in the MCU. After different I/O ports of the MCU are triggered or continuously conducted through the translation/rotation sliding gear shifting switch, the MCU is subjected to internal self-test, a built-in gear regulating program is called to set and output corresponding electric signals (for example, PWM waves with different duty ratios are output), and the electric signals are transmitted to a control output current circuit to output different light source working currents I _o, so that the brightness change of an LED light source can be regulated, and the regulation and control of the light power of the LED light source can be realized. The advantage of adopting MCU to adjust light power/luminance lies in that can realize the memory function: when the MCU receives the adjusting signal from the gear shifting switch, the MCU outputs the signal in response, and simultaneously memorizes the state and continuously outputs until receiving a new effective adjusting signal again, namely, even when the front-end circuit of the MCU fails to be conducted, the LED spotlight still keeps the output signal set last time and can still continuously work according to the last setting.

The MCU is controlled by a program to increase a memory function, when the MCU is electrified to work, the MCU detects and identifies the I/O port of the conducting pin, then invokes an internal program to output a corresponding electric signal, and transmits the electric signal to the control output current circuit to control the brightness of the LED. When the external gear switch is powered up poorly/invalidily, the MCU executes the memorized last program state instruction until the next time of effective power up. One of the benefits of this arrangement of the MCU is that it eliminates black or flashing of the lamp caused by poor/unreliable contact of the shift switch.

In addition, in the embodiment, different electric signals are output by using a preset control program in the MCU to control the output current, so that the design volumes of the circuit board and the LED spotlight can be greatly reduced.

Regulating optical power/brightness by resistance

Another embodiment of controlling and adjusting the light power adjustment of the LED spot light of the present invention by the MCU will be briefly described with reference to fig. 24-25. Fig. 24 shows a schematic functional block diagram of this further embodiment of the light power adjustment of the LED spotlight of the invention by resistance control and adjustment. Fig. 25 shows a schematic diagram of an example of a circuit for optical power adjustment by resistance shown in fig. 24.

In this example, the shift switch is slid by translation/rotation, so that the resistors of different power/shift are selected, and different working currents I _o are controlled and output through different resistors. The output current circuit is controlled to output different working currents I _o to the LED light source, so that the brightness change of the LED light source can be adjusted, and the regulation and control of the light power of the LED light source can be realized.

In the present invention, applicable LED lamps include LED spot lamps, for example, outdoor LED spot lamps, especially high power outdoor LED spot lamps, courtyard LED spot lamps, landscape lighting LED spot lamps, and the like.

The foregoing description of several embodiments of the invention has been presented for the purposes of illustration. It is not intended to be exhaustive or to limit the invention to the precise steps and/or forms disclosed, and obviously many modifications and variations are possible in light of the above teaching. The scope of the invention and all equivalents are intended to be defined by the appended claims.

Claims

1. An LED lamp with an independently dimmable lens module, the LED lamp comprises a lens module, a power supply-light source module and a lampshade, wherein an LED light source and an LED driving power supply are arranged in the power supply-light source module,

The method is characterized in that:

the lens module is a separate module detachably mounted with the power-light source module and the lamp housing;

the lens module can independently execute adjustment of the luminous angle, and the adjustment of the luminous angle of the LED lamp is realized through the adjustment operation of the lens module; and

Wherein the LED lamp further comprises an optical power regulation and control component integrated on the lens module.

2. The LED light fixture of claim 1 wherein the light power regulation assembly comprises:

A shift assembly including a shift bracket integrated on the lens module; the gear shifting position piece and the conducting spring piece are fixed together, and are installed in a translational gear shifting manner relative to the gear shifting bracket; and

An electrical contact plate with a plurality of electrical contacts spaced apart from each other, the plurality of electrical contacts being signally connected to an optical power adjustment circuit configured to adjust optical power of the LED light source.

3. The LED light fixture of claim 2 wherein:

the conducting spring plate is a metal spring plate with a U-shaped slot capable of pivoting around a pivot pin, wherein the electric contact plate is matched in the U-shaped slot of the conducting spring plate, so that electric contacts on two sides of the electric contact plate are in conductive contact with the conducting spring plate; or alternatively

4. The LED light fixture of claim 3 wherein:

By sliding the shift position element in a translational manner relative to the electrical contact plate, the conductive spring contacts different electrical contacts and thus different optical power control circuits, thereby shifting the optical power.

5. The LED light fixture of claim 3 wherein:

the pivot pin fits into a mounting hole on the shift position member.

6. The LED luminaire of any one of claims 2-5, wherein:

The shift support is provided with a plurality of shift marks, the shift marks are in one-to-one correspondence with a plurality of electric contacts which are spaced apart from each other, and the shift support is integrated on the first adjusting support of the lens module.

7. The LED light fixture of claim 6 wherein:

The gear shifting position piece is provided with an indication mark pointing to the gear mark, wherein the gear shifting position piece is matched with the gear shifting support and can move in a translational mode relative to the gear shifting support.

8. The LED light fixture of claim 7 wherein:

the conducting spring piece is arranged on the gear shifting position piece, so that the conducting spring piece and the gear shifting position piece can translate relative to the gear shifting support together, and gear regulation and control of optical power are carried out.

9. The LED light fixture of claim 1 wherein: the optical power conditioning assembly includes:

A shift assembly including a shift bracket constructed of arc segments integrated on the lens module; a gear shifting position piece and a conductive spring needle fixed with the gear shifting position piece, wherein the conductive spring needle is rotatably and gear-shifted relative to the gear shifting bracket; and

10. The LED luminaire of any one of claims 2-9, wherein:

The optical power adjusting circuit comprises an EMI and rectifying filter circuit, a resistance control circuit and a control output current circuit, wherein the resistance control circuit is configured to output different electric signals according to input signals at different positions of the gear shifting assembly, and further control the working current output to the LED light source through the different electric signals.

11. The LED luminaire of any one of claims 2-9, wherein:

The optical power adjusting circuit comprises an EMI and rectifying filter circuit, an MCU control circuit and a control output current circuit, wherein the MCU control circuit is configured to output different electric signals according to input signals at different positions of the gear shifting assembly, and further control the working current output to the LED light source through the different electric signals.

12. The LED light fixture of any one of claims 1-11 wherein the lens module includes a first adjustment bracket, a lens-pin sleeve assembly, and a second adjustment bracket that are nested together in sequence;

Wherein the first and second adjustment brackets are rotatable relative to each other to cause axial translation of the lens-sleeve assembly nested therebetween relative to the first adjustment bracket.

13. The LED lamp of claim 12, wherein the hollow cylinder wall of the first adjustment bracket is provided with a pair of axially extending limit grooves;

Wherein the lens-pin sleeve assembly comprises a lens body, an optical lens sheet, a pair of pin shafts positioned on the lens body and a pair of linkage pin sleeves assembled on the pair of pin shafts, wherein the pair of pin shafts are clamped into the pair of limit grooves and can translate in the axial direction relative to the limit grooves in a linkage manner with the lens-pin sleeve assembly;

wherein, a pair of spiral convex ribs are arranged on the cylinder wall of the second adjusting bracket;

Wherein, a pair of sliding grooves which are matched with the pair of spiral convex ribs and move in a relative spiral sliding way are correspondingly arranged on the pair of linkage pin sleeves;

Wherein relative helical sliding movement of the pair of helical ribs of the second adjustment bracket relative to the pair of runners of the lens-sleeve assembly results in axial translation of the lens-sleeve assembly relative to the first adjustment bracket.

14. The LED light fixture of claim 13 wherein an angle scale marking is provided on the hollow cylinder wall of the first adjustment bracket and an indicator corresponding to the angle scale marking is provided on the linkage sleeve of the lens-sleeve assembly.

15. The LED light fixture of claim 13 wherein the pin extends from the boss and further comprising a snap fit groove on the interlocking pin sleeve.

16. The LED light fixture of claim 14 wherein each of the pair of ganged-pin sleeves is provided with a mounting hole that is a tight fit with the pin shaft.

17. The LED luminaire of any one of claims 1-16, wherein the lens module is capable of adjusting the light emission angle of the LED luminaire in the range of 10 ° -100 °.

18. The LED light fixture of any one of claims 1-17 wherein the light power conditioning circuit is integrated with a drive circuit board in the power-light source module;

Wherein the plurality of electrical contacts are electrically connected to or signal coupled to the optical power conditioning circuit.

19. The LED luminaire of any one of claims 1-18, wherein the lens module is replaceable.

20. The LED light fixture of any one of claims 1-19 wherein the LED light fixture comprises an LED spotlight.