CN111947111B - Lens assembly with adjustable illumination angle, lamp and dimming method thereof - Google Patents
Lens assembly with adjustable illumination angle, lamp and dimming method thereof Download PDFInfo
- Publication number
- CN111947111B CN111947111B CN202010975309.8A CN202010975309A CN111947111B CN 111947111 B CN111947111 B CN 111947111B CN 202010975309 A CN202010975309 A CN 202010975309A CN 111947111 B CN111947111 B CN 111947111B
- Authority
- CN
- China
- Prior art keywords
- lens assembly
- lens
- light
- floodlight
- lenses
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000005286 illumination Methods 0.000 title claims description 29
- 230000003287 optical effect Effects 0.000 claims description 24
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000001788 irregular Effects 0.000 description 4
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention provides a lens assembly with an adjustable irradiation angle, a lamp and a dimming method thereof, the lamp comprises a lens assembly A and a lens assembly B, a plurality of identical floodlight lenses and condensing lenses are arranged on the lens assembly A in a circumferential array mode, the floodlight lenses and the condensing lenses are sequentially and alternately arranged, the lens assembly B is provided with a plurality of condensing portions and micro-structure portions in a circumferential array mode, the number of the condensing portions and the micro-structure portions are equal to that of the floodlight lenses, the condensing portions and the micro-structure portions are sequentially and alternately arranged, the lens assembly A and the lens assembly B are rotatably connected around a group of axes which simultaneously pass through the middle point of the lens assembly A and the middle point of the lens assembly B, and when light converged by the condensing lenses passes through the micro-structure portions, the light passing through the floodlight lenses passes through the condensing portions, compared with the adjustment of the relative axial distance between the lenses and a light source, the lamp is simple in structure, convenient to adjust, and the lamp is more beneficial to miniaturization of the light distribution.
Description
Technical Field
The invention relates to the field of lighting lamps, in particular to a lens assembly with an adjustable irradiation angle, a lamp and a dimming method thereof.
Background
Most of the existing lighting lamps only have one of spot lighting or floodlighting modes, the distance between the light source and the light cup (or lens) is relatively fixed, the function is single, and the use scene of the lighting lamps is restricted.
Some lamps with adjustable light distribution angles appear in the market, the zoom changing angle is realized mostly by adjusting the relative axial distance between the lens and the light source, for example, the dimming lamp and the dimming method disclosed in the China patent application with the application number 200710125327.1 are used for adjusting the position of the second reflecting cup between the first reflecting cup and the light source through the adjusting device, so that the light emitted by the light source mainly irradiates on the first reflecting cup or the second reflecting cup, and corresponding remote illumination or near illumination is realized.
The adjusting mode adjusts the light distribution angle under the condition of not changing the light cup (or the lens), and a complex zooming and positioning structure is needed for adjusting the axial distance, so that the whole lamp has a complex structure and a large volume.
Disclosure of Invention
The invention aims to overcome the defects of the background technology and provide a lens, a lamp and a dimming method for adjusting the light distribution angle in a rotary adjustment mode, which are simple in structure and convenient to adjust.
The embodiment of the invention is realized by the following technical scheme:
an illumination angle adjustable lens assembly comprises a lens assembly A and a lens assembly B;
the lens assembly A is provided with a plurality of floodlight lenses and condensing lenses which are equal in number in an array mode around the circumference of the middle point, and the floodlight lenses and the condensing lenses are alternately arranged in sequence;
The lens assembly B is provided with a plurality of light condensing parts and micro-structure parts for light mixing in an array mode around the circumference of the middle point, the number of the light condensing parts and the number of the micro-structure parts are equal to that of the floodlight type lenses, and the light condensing parts and the micro-structure parts are alternately arranged in sequence;
The lens assembly A and the lens assembly B are rotatably connected around a group of axes which simultaneously pass through the middle point of the lens assembly A and the middle point of the lens assembly B, and when the light converged by the condensing lens passes through the microstructure part, the light passing through the floodlight lens passes through the condensing part.
In some preferred embodiments, the light condensing portions are disposed on the light incident surface or the light emergent surface of the lens assembly B.
In some preferred embodiments, the plurality of micro-structures are disposed on the light incident surface or the light emergent surface of the lens assembly B.
In some preferred embodiments, the light gathering portion is a convex structure or fresnel saw tooth structure provided on the lens assembly B.
In some preferred embodiments, the microstructure is a bump structure or a pit structure or a frosted structure provided on the lens assembly B.
In some preferred embodiments, the condenser lens is a collimating lens.
In some preferred embodiments, the condensing lens and the floodlight lens are both cup-shaped, and the outer wall of the condensing lens and the outer wall of the floodlight lens are both total reflection curved surfaces.
A lamp, wherein the lens component with adjustable irradiation angle is used.
In the dimming method of the lamp, the included angle between the light converged by the condensing lens and the optical axis of the condensing lens is smaller than the included angle between the light emitted by the floodlight lens and the optical axis of the floodlight lens;
when the large-angle short-distance irradiation is needed, the lens assembly A and the lens assembly B are relatively rotated, so that the light-emitting surfaces of the condensing lenses are in one-to-one correspondence with the condensing parts, and the light-emitting surfaces of the floodlight lenses are in one-to-one correspondence with the microstructure parts;
when the lens assembly A and the lens assembly B are required to be irradiated at a small angle and a long distance, the light emitting surfaces of the condensing lenses are in one-to-one correspondence with the microstructure parts, the light emitting surfaces of the floodlight lenses are in one-to-one correspondence with the condensing parts, the light converged by the condensing lenses is refracted at a small angle in the microstructure parts and then emitted, and the light converged by the floodlight lenses is refracted at a large angle in the condensing parts and then emitted.
The technical scheme of the embodiment of the invention has at least the following advantages and beneficial effects:
In the lens assembly with the adjustable illumination angle, the lens assembly A and the lens assembly B are rotated relatively, so that the floodlight type lens and the condensing type lens can be combined with the microstructure part and the condensing part to realize light distribution respectively, and the lamp using the lens assembly with the adjustable illumination angle can have two light distribution modes of large-angle short-distance illumination and long-distance small-angle illumination.
Drawings
FIG. 1 is a schematic view of a lens assembly and a lamp with an adjustable illumination angle in a state 1 according to the present invention;
FIG. 2 is a schematic view of the lens assembly and lamp with adjustable illumination angle in state 2 according to the present invention;
FIG. 3 is a schematic view of the light path of the adjustable illumination angle lens assembly and lamp of the present invention in state 1;
FIG. 4 is a schematic view of the light path of the adjustable illumination angle lens assembly and lamp of the present invention in state 2;
fig. 5 is a schematic structural diagram of a lens assembly and a lamp with an adjustable illumination angle according to embodiment 2 of the present invention;
Fig. 6 is a schematic structural diagram of a lens assembly and a lamp with adjustable illumination angle according to embodiment 3 of the present invention;
The icons are 1-lens assembly A, 11-floodlight lens, 111-first total reflection curved surface, 112-first light-gathering convex surface, 113-first light-entering surface, 12-light-gathering lens, 121-second total reflection curved surface, 122-second light-gathering convex surface, 123-second light-entering surface, 2-lens assembly B, 21-light-gathering part, 211-central convex surface, 22-microstructure part and 3-light source.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present invention and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, or in communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1
As shown in fig. 1 to 5, the present embodiment provides a lens assembly with an adjustable illumination angle, including a lens assembly A1 and a lens assembly B2.
The lens assembly A1 is provided with a plurality of flood lenses 11 and condensing lenses 12, which are equal in number, in an array manner around the midpoint circumference, in this embodiment, the lens assembly A1 is disc-shaped, on which 3 sets of flood lenses 11 and 3 sets of condensing lenses 12 are provided, and the 3 sets of flood lenses 11 and 3 sets of condensing lenses 12 can be integrally formed with the lens assembly A1, or can be installed in a detachable connection manner.
In this embodiment, as shown in fig. 1 and fig. 2, the outline of the floodlight lens 11 and the outline of the condensing lens 12 are both in a shape of a light cup, and the outer wall of the condensing lens and the outer wall of the floodlight lens 11 are both total reflection curved surfaces, that is, the outer wall surface of the floodlight lens 11 is the first total reflection curved surface 111, the outer wall surface of the condensing lens 12 is the second total reflection curved surface 121, the included angle between the outgoing light of the floodlight lens 11 and the optical axis thereof is a large angle type between 30 ° to 90 °, and the included angle between the outgoing light of the condensing lens 12 and the optical axis thereof is between 0 ° to 30 °, so in some preferred embodiments, the condensing lens 12 may be a collimating lens.
In addition, as shown in fig. 1 and 2, the bottom of the floodlight lens 11 is provided with a light incident hole, the bottom of the light incident hole is a first light condensing convex surface 112, the side wall of the light incident hole is a first light incident surface 113, the bottom of the light condensing lens 12 is also provided with a light incident hole, the bottom of the light incident hole is a second light condensing convex surface 122, and the side wall of the light incident hole is a second light incident surface 123.
In some preferred embodiments, the first condensing convex surface 112 of the floodlight lens 11 and the second condensing convex surface 122 of the condensing lens 12 may be concave, and may also be fresnel sawn teeth surfaces.
The 3 floodlight lenses 11 and 3 condensing lenses 12 are arranged in a circumferential array around the disk center of the lens taper A1, and the 3 floodlight lenses 11 and 3 condensing lenses 12 are alternately arranged at uniform intervals.
The lens component B2 is disc-shaped, 3 groups of light condensing parts 21 and 3 groups of micro-structure parts 22 for light mixing are arranged on the surface of the lens component B in an array mode around the midpoint circumference of the disc, namely the number of the light condensing parts 21 and the number of the micro-structure parts 22 are equal to the number of the floodlight lenses 11, and the 3 light condensing parts 21 and the 3 micro-structure parts 22 are alternately arranged at intervals in sequence.
The 3 groups of light condensing portions 21 and 3 groups of the microstructure portions 22 can be integrally formed with the lens assembly B2, the surface of the lens assembly B2 can be a plane or an arc surface, and the 3 groups of light condensing portions 21 and 3 groups of microstructure portions 22 can be arranged on the light incident surface or the light emergent surface of the lens assembly B2 at will, that is, the plurality of light condensing portions 21 are arranged on the light incident surface or the light emergent surface of the lens assembly B2, and the plurality of microstructure portions 22 can also be arranged on the light incident surface or the light emergent surface of the lens assembly B2.
The light condensing portion 21 is a convex structure or a fresnel sawtooth structure disposed on the lens assembly B2, in this embodiment, the fresnel sawtooth structure, and the microstructure portion 22 may be a convex point structure or a concave point structure or a frosted structure disposed on the lens assembly B2, in this embodiment, a convex point micro-mixing structure.
The areas of each group of light condensing part 21 and microstructure part 22 are circular, and the size of the circular area of the light condensing part 21, the size of the circular area of the microstructure part 22 are consistent with the size of the light emitting surface of the floodlight lens 11 and the size of the light emitting surface of the light condensing lens 12.
The lens assembly A1 and the lens assembly B2 are rotatably connected around a group of axes which simultaneously pass through the middle point of the lens assembly A1 and the middle point of the lens assembly B2, when the light converged by the 3 groups of condensing lenses 12 respectively passes through the group of micro-structural parts 22, the light converged by the 3 groups of floodlight lenses 11 respectively passes through the group of condensing parts 21, the rotation is 60 degrees, and when the light converged by the 3 groups of condensing lenses 12 respectively passes through the group of condensing parts 21, the light converged by the 3 groups of floodlight lenses 11 respectively passes through the group of micro-structural parts 22.
Example 2
As shown in fig. 5, the present embodiment provides a lamp in which the above-described lens assembly with an adjustable irradiation angle is used, and the LED-type light source 3 is provided in each of the light entrance holes of the flood lens 11 and the light entrance holes of the condenser lens 12.
Example 3
As shown in fig. 6, this embodiment provides a lamp in which the above-described lens assembly with adjustable illumination angle is used, unlike in embodiment 2, in this embodiment:
two or more groups of light condensing units 21 form a group of light condensing units, and in particular, in this embodiment, 3 groups of light condensing units 21 form a group of light condensing units, and the shape of the light condensing units formed by the combination is not limited to the triangle shown in fig. 6, but may be square, round, or other irregular shapes;
Similarly, two or more groups of microstructure portions 22 form a group of microstructure units, and in this embodiment, 3 groups of microstructure portions form a group of microstructure units, and the shape of the microstructure units formed by the combination is not limited to the triangle shown in fig. 6, but may be square, circular, or other irregular shapes;
Similarly, two or more groups of floodlight lenses 11 form a group of floodlight lens units, and in this embodiment, 3 groups of floodlight lenses 11 form a group of floodlight lens units, and the shape of the floodlight lens units formed by the combination is not limited to triangle, but may be square, round or other irregular shapes;
Similarly, two or more groups of condensing lenses 12 form a group of condensing lens units, and the shape of the condensing lens units formed by the combination is not limited to a triangle, but can be square, round or other irregular shapes;
the lens comprises a plurality of groups of floodlight type lens units and a plurality of groups of condensing type lens units, wherein the groups of floodlight type lens units and the groups of condensing type lens units are arranged alternately, the groups of condensing type lens units and the groups of microstructure units are arranged alternately in sequence, and the groups of condensing type lens units and the groups of microstructure units are arranged alternately in sequence;
in this embodiment, by making each group of condensing units 21, each group of microstructure units 22, each group of floodlight lenses 11, and each group of condensing lenses 12 in embodiment 2 equivalent to the condensing units, the microstructure units, the floodlight lens units, and the condensing lens units in this embodiment, the principle of action is the same as that in embodiment 2, and will not be described here again.
In addition, the light entrance holes of each flood lens 11 and the light entrance holes of the condenser lens 12 are each provided with an LED-type light source 3.
Example 4
As shown in fig. 1 to 5, the present embodiment discloses a dimming method of a lamp in embodiment 2;
as shown in fig. 3 and 4, since the floodlight lens 11 and the condensing lens 12 have different optical properties, the angle between the light condensed by the condensing lens 12 and the optical axis of the condensing lens 12 is smaller than the angle between the light emitted by the floodlight lens 11 and the optical axis of the floodlight lens 11.
As shown in fig. 3, as state 1, when the large-angle short-distance irradiation is required, the lens assembly A1 and the lens assembly B2 are relatively rotated, so that the light-emitting surface of each group of condenser lenses 12 on the left side in the figure corresponds to one group of condenser portions 21 one by one, and the light-emitting surface of each group of floodlight lenses 11 on the right side corresponds to one group of microstructure portions 22 one by one;
The light emitted by the left light source 3 is refracted through the second light incident surface 123 of the condensing lens 12, then totally reflected through the second total reflection curved surface 121, the light emergent direction is smaller in included angle with the optical axis of the condensing lens 12 and is nearly parallel, and the light passes through the condensing part 21 of the lens assembly B2, is refracted at a large angle and deviates from the optical axis, and finally is emitted towards a large angle;
The light emitted by the right light source 3 is refracted through the first light incident surface 113 of the floodlight lens 11, then is totally reflected through the first total reflection curved surface 11, the light emergent direction deviates from the optical axis of the floodlight lens 11, and forms a larger included angle with the optical axis, then is refracted and mixed through the micro-structure part 22 of the lens assembly B2, the light still exits in a large angle direction after being slightly refracted, and the other part of the light is refracted through the first light condensation convex surface 112 at the bottom of the light incident hole, then deviates from the optical axis of the floodlight lens 11, forms a larger included angle with the optical axis, and then is refracted and mixed through the micro-structure part 22 of the lens assembly B2, and then exits in a large angle direction after being slightly refracted, and forms a maximum light distribution angle through the two types of light distribution angles of the floodlight lenses 11 and the light distribution angles of the light condensation lenses 12 of the 3 groups, thus being suitable for large-angle short-distance illumination.
As shown in fig. 4, as state 2, when the small-angle long-distance irradiation is required, the lens assembly A1 and the lens assembly B2 are relatively rotated, and after 60 ° rotation with respect to state 1, the light emitting surfaces of the condensing lenses 12 are in one-to-one correspondence with the microstructure portions 22, and the light emitting surfaces of the flood lenses 11 are in one-to-one correspondence with the condensing portions 21;
The light emitted by the left light source 3 is refracted through the second light incident surface 123 of the condensing lens 12, then is totally reflected through the second total reflection curved surface 121, the light emergent direction is basically parallel to the optical axis of the condensing lens 12, and after being refracted through the micro-structure part 22 of the lens assembly B2, the light is slightly deviated from the optical axis and finally is emitted towards the small angle direction of the optical axis, and the other part of the light is close to the collimated light beam after being concentrated and refracted through the second light converging convex surface 122, and then is subjected to secondary refraction and light mixing through the micro-structure part 22 of the lens assembly B2, so that the light is slightly refracted and finally is emitted towards the small angle direction of the optical axis.
After being refracted through the first light incident surface 113 of the floodlight lens 12, the light emitted by the right light source 3 is reflected through the first total reflection curved surface 111, the light emergent direction deviates from the optical axis of the floodlight lens 12 and forms a larger included angle with the optical axis, after passing through the light gathering part 21 of the Fresnel tooth-shaped structure of the lens assembly B2, the light is refracted at a large angle in the opposite direction, so that the light finally exits in a small angle direction of the optical axis, the other part of the light passes through the light gathering convex surface 112 to be slightly refracted, the light emergent direction deviates from the optical axis of the floodlight lens 12 and forms a larger included angle with the optical axis, and then passes through the secondary refraction of the light gathering part 21 of the Fresnel tooth-shaped structure of the lens assembly B2, the light is refracted at a large angle in the opposite direction, so that the light exits in the small angle direction, and the two types of light distribution angles of the floodlight gathering lenses 11 and the 3 groups of the floodlight gathering lens 12 are combined into a small light distribution angle, so that the light source is suitable for long-distance small angle irradiation requirement.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010975309.8A CN111947111B (en) | 2020-09-16 | 2020-09-16 | Lens assembly with adjustable illumination angle, lamp and dimming method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010975309.8A CN111947111B (en) | 2020-09-16 | 2020-09-16 | Lens assembly with adjustable illumination angle, lamp and dimming method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111947111A CN111947111A (en) | 2020-11-17 |
| CN111947111B true CN111947111B (en) | 2025-01-14 |
Family
ID=73356426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010975309.8A Active CN111947111B (en) | 2020-09-16 | 2020-09-16 | Lens assembly with adjustable illumination angle, lamp and dimming method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111947111B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115435297A (en) * | 2022-08-12 | 2022-12-06 | 苏州欧普照明有限公司 | Lens, lighting lamp and design method of light emitting surface of lens |
| CN115585412A (en) * | 2022-09-22 | 2023-01-10 | 兰州万里航空机电有限责任公司 | Integrated aircraft refueling lamp |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212584890U (en) * | 2020-09-16 | 2021-02-23 | 成都派斯光学有限公司 | A lens assembly and lamp with adjustable illumination angle |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130110967A (en) * | 2012-03-30 | 2013-10-10 | 삼성전자주식회사 | Floodlighting lens |
| CN203298189U (en) * | 2013-05-15 | 2013-11-20 | 易世值 | LED light source with COB module |
| WO2016041430A1 (en) * | 2014-09-17 | 2016-03-24 | 欧普照明股份有限公司 | Led spot lamp |
| CN110030505B (en) * | 2019-03-22 | 2021-03-23 | 厦门立达信照明有限公司 | A light guide lens and a mask lamp with uniform brightness of the lampshade |
-
2020
- 2020-09-16 CN CN202010975309.8A patent/CN111947111B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212584890U (en) * | 2020-09-16 | 2021-02-23 | 成都派斯光学有限公司 | A lens assembly and lamp with adjustable illumination angle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111947111A (en) | 2020-11-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6502964B1 (en) | Devices and methods for distributing radially collected and collimated light | |
| US7006306B2 (en) | Circumferentially emitting luminaires and lens-elements formed by transverse-axis profile-sweeps | |
| JP2007507846A (en) | Improved light source using light emitting diodes and improved method of collecting energy emitted from light emitting diodes | |
| CN100538160C (en) | LED small angle long distance light microscopic group and array | |
| CN212584890U (en) | A lens assembly and lamp with adjustable illumination angle | |
| US20180017717A1 (en) | Optical device with a collimator and lenslet arrays | |
| US7600894B1 (en) | Luminaires and optics for control and distribution of multiple quasi point source light sources such as LEDs | |
| US9234639B2 (en) | Compact searchlight utilizing the concept of merging into a single beam the beams of multiple sources of concentrated light | |
| US20080030987A1 (en) | Luminaires using multiple quasi-point sources for unified radially distributed illumination | |
| JP2013502679A5 (en) | ||
| CN111947111B (en) | Lens assembly with adjustable illumination angle, lamp and dimming method thereof | |
| US8075162B2 (en) | Zoom luminaire with compact non-imaging lens-mirror optics | |
| US20200011511A1 (en) | Zoom lamp lens group | |
| CN105156950A (en) | LED spotlight | |
| CN105333318A (en) | Wide Angle LED Lighting Unit | |
| CN211043831U (en) | Optical beam expanding lens and lamp | |
| US8356914B2 (en) | Luminaires and optics for control and distribution of multiple quasi point source light sources such as LEDs | |
| CN102901045A (en) | Fresnel lens for high-power light-emitting diode (LED) light source | |
| CN208566571U (en) | A kind of focusing lamp lens group and corresponding lighting system | |
| CN207394744U (en) | A kind of Combined lens | |
| CN208886676U (en) | Lens and light source module | |
| CN220855237U (en) | Fresnel lens and lighting equipment | |
| CN202835182U (en) | Fresnel lens for LED light source with high power | |
| US9447930B1 (en) | Multi function LED light bulb and lumenairs with interchangeable optical components | |
| US4039816A (en) | Arrangement for transmitting light energy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |