CN115308824A - Face lens and wall washing lamp - Google Patents

Face lens and wall washing lamp Download PDF

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Publication number
CN115308824A
CN115308824A CN202111630573.9A CN202111630573A CN115308824A CN 115308824 A CN115308824 A CN 115308824A CN 202111630573 A CN202111630573 A CN 202111630573A CN 115308824 A CN115308824 A CN 115308824A
Authority
CN
China
Prior art keywords
lens
curve
light
wall
emergent
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.)
Pending
Application number
CN202111630573.9A
Other languages
Chinese (zh)
Inventor
王万林
赵健
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Opple Lighting Co Ltd
Suzhou Op Lighting Co Ltd
Original Assignee
Opple Lighting Co Ltd
Suzhou Op Lighting Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Opple Lighting Co Ltd, Suzhou Op Lighting Co Ltd filed Critical Opple Lighting Co Ltd
Priority to CN202111630573.9A priority Critical patent/CN115308824A/en
Publication of CN115308824A publication Critical patent/CN115308824A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/02—Simple or compound lenses with non-spherical faces
    • G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens
    • 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
    • F21V5/008—Combination of two or more successive refractors along an optical axis
    • 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
    • F21V5/045—Refractors for light sources of lens shape the lens having discontinuous faces, e.g. Fresnel lenses
    • 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
    • F21V5/046—Refractors for light sources of lens shape the lens having a rotationally symmetrical shape about an axis for transmitting light in a direction mainly perpendicular to this axis, e.g. ring or annular lens with light source disposed inside the ring

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The invention discloses a surface lens which is provided with a first surface and a second surface, wherein the first surface is provided with a plurality of bulges which are sequentially arranged along a first direction, each bulge is formed by moving a master curve with two ends connected with the first surface along a second direction on the first surface, the master curve comprises a first curve and a second curve, the first curve extends from the first surface to the highest point of the bulge, the second curve extends from the highest point of the bulge to the first surface, and the length of the first curve is smaller than that of the second curve; the first direction and the second direction have an included angle. The invention further provides a wall washing lamp.

Description

Surface lens and wall washing lamp
Technical Field
The invention relates to the technical field of lamps, in particular to a surface lens and a wall washing lamp.
Background
There is an increasing demand for wall washing lighting fixtures, such as lighting of building exterior walls, lighting of billboards, lighting of supermarket shelves, etc. In the prior art, a wall washing lamp for wall washing illumination generally adopts a total reflection lens to distribute light. The problems of uneven wall surface illumination, glare and the like exist after the total reflection lens is used for light distribution, so that dark areas appear on the wall.
Disclosure of Invention
The invention aims to provide a surface lens, which solves the problems of uneven illuminance and glare in the prior art.
The invention further provides a wall washing lamp, which solves the problems of uneven illumination and glare in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a surface lens is provided with a first surface and a second surface, wherein the first surface is provided with a plurality of bulges which are sequentially arranged along a first direction, each bulge is formed by moving a master curve with two ends connected with the first surface along a second direction on the first surface, the master curve comprises a first curve and a second curve, the first curve extends from the first surface to the highest point of the bulge, the second curve extends from the highest point of the bulge to the first surface, and the length of the first curve is smaller than that of the second curve; the first direction and the second direction have an included angle.
Wherein the second face is a smooth face.
Wherein the included angle is 80-90 degrees.
Wherein the first curve is a partial parabola and the second curve is a flat parabolic curve.
A wall washing lamp comprises a lamp body, a light emitting module, a collimating lens and the surface lens, wherein the lamp body is in a long strip shape, the lamp body is provided with an accommodating cavity extending along the length direction, the accommodating cavity is provided with an opening, the light emitting module is installed in the accommodating cavity, the surface lens is arranged at the opening, and the first surface of the surface lens faces the light emitting module; the collimating lens is arranged in the accommodating cavity and positioned between the light-emitting module and the surface lens.
Wherein the collimating lens comprises: a long-strip-shaped lens body, wherein the lens body is provided with an incident light groove extending along the length direction; the inner wall surface of the incident light groove comprises a normal incident surface, a first lateral incident surface and a second lateral incident surface; the lens body is provided with a first reflecting surface, a second reflecting surface and an emergent surface; the emergent surface is opposite to the normal incident surface, the first reflecting surface is connected with the first lateral incident surface and the emergent surface, the second reflecting surface is connected with the second lateral incident surface and the emergent surface, and partial light enters the first lateral incident surface, is reflected by the first reflecting surface and then is emitted through the emergent surface; part of light rays enter the second lateral incident surface, are reflected by the second reflecting surface and then are emitted through the emergent surface; and part of the light rays are emitted to the emergent surface through the normal incidence surface.
Wherein the first reflecting surface and the second reflecting surface are both paraboloids.
The lamp body comprises a bottom wall, a high side wall and a low side wall, the high side wall and the low side wall are respectively connected to two sides of the bottom wall, the surface lens is installed between the high side wall and the low side wall, an included angle is formed between the surface lens and the bottom wall, a support plate is arranged in the accommodating cavity, the support plate is parallel to the surface lens, and the light-emitting module is installed on the support plate.
Wherein the first curve of the protrusion is closer to the high sidewall than the second curve.
The light-emitting module comprises a long-strip-shaped circuit board and a plurality of light sources mounted on the circuit board, and the light sources are arranged at intervals along the length direction of the circuit board.
Compared with the prior art, the invention has the following advantages:
the surface lens and the wall washing lamp with the surface lens solve the problems of glare and uneven illumination of the wall washing lamp in the prior art.
Drawings
FIG. 1 is a perspective view of a preferred embodiment of a face lens of the present invention.
FIG. 2 is a cross-sectional view of a preferred embodiment of a face lens of the present invention.
FIG. 3 is a perspective view of a preferred embodiment of a wall washer light fixture of the present invention.
FIG. 4 is an exploded view of a preferred embodiment of a wall wash light of the present invention.
FIG. 5 is a cross-sectional view of a preferred embodiment of a wall wash light of the present invention.
FIG. 6 is a cross-sectional view of a collimating lens of a preferred embodiment of a wall wash light fixture of the present invention.
FIG. 7 is a light path diagram of a preferred embodiment of a wall washer lamp of the present invention.
In the figure, 100: a face lens; 101: a first side; 102: a second face; 110: a protrusion; 111: a master curve; 112: a first curve; 113: a second curve; h: the highest point; 200: a lamp body; 201: a bottom wall; 202: a high side wall; 203: a low sidewall; 204: a mounting plate; 210: an accommodating chamber; 211: an opening; 300: a light emitting module; 310: a circuit board; 320: a light source; 400: a collimating lens; 410: a lens body; 420: an incident light groove; 411: a first reflective surface; 412: a second reflective surface; 413: an exit surface; 421: a normal incidence plane; 422: a first lateral incident surface; 423: a second lateral incident surface.
Detailed Description
The following detailed description of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Referring to fig. 1-2, a preferred embodiment of a face lens of the present invention is shown. The face lens 100 has a first face 101 and a second face 102, the first face 101 is provided with a plurality of protrusions 110 arranged in sequence along a first direction, each protrusion 110 is formed by moving a generating curve 111, two ends of which are connected with the first face 101, along a second direction on the first face 101, the generating curve 111 includes a first curve 112 and a second curve 113, wherein the first curve 112 extends from the first face 101 to a highest point H of the protrusion 110, the second curve 113 extends from the highest point H of the protrusion 110 to the first face 101, the length of the first curve 112 is smaller than that of the second curve 113, that is, an arc degree of the first curve 112 from the first face 101 to the highest point H is smaller and steeper; the second curve 113 has a relatively large and smooth curvature from the highest point H to the first surface 101. The first direction and the second direction have an included angle. The included angle is 80 to 90 degrees, and in this embodiment, the included angle is preferably 90 degrees, that is, the first direction is perpendicular to the second direction.
Light rays enter the face lens 100 from the first face 101 and are emitted from the second face 102 of the face lens 100, the light rays are processed by the protrusions 110 to form uniform light rays when the light rays are emitted, the face lens 100 is used for wall washing lamps, and the problems of glare and uneven illumination of the wall washing lamps in the prior art are solved.
Further, the second face 102 is a smooth face. The second side 102 is polished to allow light to better exit the second side 102.
The first curve 112 is a partial parabola, i.e., the first curve 112 is a portion of a parabola. The second curve 113 is a flat polishing curve, that is, the second curve 113 is a flat polishing curve from the highest point H to the first surface 101.
As shown in fig. 3 to 6, which illustrate a preferred embodiment of a wall washer, the wall washer includes a lamp body 200, a light emitting module 300, a collimating lens 400 and the surface lens 100 of the above embodiment, the lamp body 200 is elongated, the lamp body 200 is provided with a receiving cavity 210 extending along a length direction, the receiving cavity 210 has an opening 211, the light emitting module 300 is installed in the receiving cavity 210, the surface lens 100 is provided at the opening 211, wherein a second direction of the surface lens 100 is consistent with the length direction of the lamp body 200, and a first surface 101 of the surface lens 100 faces the light emitting module 300; the collimating lens 400 is disposed in the accommodating chamber 210 between the light emitting module 300 and the surface lens 100.
The light emitted by the light emitting module 300 passes through the collimating lens 400 to form light substantially perpendicular to the surface lens 100, and the surface lens 100 performs light processing on the light again, so that uniform light is formed when the light is emitted, and the problems of glare and uneven light spots of the wall washing lamp in the prior art are solved.
The collimating lens 400 includes: the lens body 410 is an elongated lens body, the lens body 410 is provided with an incident light groove 420, and the incident light groove 420 is elongated and extends along the length direction of the elongated lens body 410. The inner wall surface of the incident light groove 420 includes a normal incident surface 421, a first lateral incident surface 422, and a second lateral incident surface 423; the lens body 410 has a first reflecting surface 411, a second reflecting surface 412, and an exit surface 413; the emergent surface 413 is arranged opposite to the normal incident surface 421, the first reflecting surface 411 is connected with the first lateral incident surface 422 and the emergent surface 413, the second reflecting surface 412 is connected with the second lateral incident surface 423 and the emergent surface 413, wherein part of light enters the first lateral incident surface 422, is reflected by the first reflecting surface 411 and then is emitted through the emergent surface 413; part of the light enters the second lateral incident surface 423, is reflected by the second reflecting surface 412, and is emitted through the emitting surface 413; part of the light is emitted to the emission surface 413 through the normal incidence surface 421. As shown in fig. 7, the light emitted from the light emitting module 300 enters the lens body 410 through the incident light groove 420, the light emitted from the exit surface 413 is emitted substantially perpendicular to the exit surface 413 and enters the protrusion 110 of the surface lens 100, and the light is uniformly diffused under the action of the surface lens 100, so as to solve the technical problem of non-uniform light in the prior art. The collimating lens 400 and the surface lens 100 both adopt a stretching structure, and have the advantages that light is controlled in the vertical direction, light is not controlled in the direction parallel to the lamp, the beam angle reaches 110-120 degrees, the irradiation range is wider, and the number of lamps required by the same wall is less.
The first reflecting surface 411 and the second reflecting surface 412 are paraboloids, have a total reflection function, and can reflect all light rays and emit the light rays in a direction perpendicular to the emitting surface 413.
The lamp body 200 includes a bottom wall 201, a high side wall 202 and a low side wall 203 respectively connected to two sides of the bottom wall 201, the surface lens 100 is installed between the high side wall 202 and the low side wall 203, and the surface lens 100 forms an included angle with the bottom wall 201, that is, the surface lens 100 is installed at the end of the high side wall 202 and the low side wall 203, a bracket plate 204 is installed in the accommodating cavity 210, the bracket plate 204 is parallel to the surface lens 100, and the light emitting module 300 is installed on the bracket plate 204 to ensure that the light emitted from the collimating lens 400 is substantially perpendicular to the first surface 101 of the surface lens 100. The lamp body 200 is provided with a high side wall 202 and a low side wall 203, the surface lens 100 and the bottom wall 201 of the lamp body 200 form an included angle, and the bottom wall 201 of the lamp body 200 can realize a wall washing effect when being mounted on a ceiling, so that the lamp is convenient to mount.
The first curve 111 of each protrusion 110 is closer to the high sidewall than the second curve 112.
The light emitting module 300 includes a long strip-shaped circuit board 310 and a plurality of light sources 320 mounted on the circuit board 310, wherein the plurality of light sources 320 are arranged at intervals along the length direction of the circuit board 310. Those skilled in the art will understand that the light emitting module further includes a light source driver, which is connected to the light source 320 for controlling the light source 320 to emit light. The light emitting module 300 is not part of the present invention, and the description thereof is omitted.
It should be noted that the embodiments of the present invention have been described in terms of preferred embodiments, and not by way of limitation, and that those skilled in the art can make modifications and variations of the embodiments described above without departing from the spirit of the invention.

Claims (10)

1. A surface lens is characterized in that the surface lens is provided with a first surface and a second surface, the first surface is provided with a plurality of bulges which are sequentially arranged along a first direction, each bulge is formed by moving a master curve with two ends connected with the first surface along a second direction on the first surface, the master curve comprises a first curve and a second curve, wherein the first curve extends from the first surface to the highest point of the bulge, the second curve extends from the highest point of the bulge to the first surface, and the length of the first curve is smaller than that of the second curve; the first direction and the second direction have an included angle.
2. The facial lens of claim 1, wherein said second face is a smooth face.
3. The surface lens of claim 1, wherein said included angle is 80 to 90 degrees.
4. The surface lens of claim 1, wherein the first curve is a partial parabola and the second curve is a flat parabolic curve.
5. A wall washing lamp, which is characterized by comprising a lamp body, a light emitting module, a collimating lens and the surface lens of any one of claims 1 to 4, wherein the lamp body is long, the lamp body is provided with a containing cavity extending along the length direction, the containing cavity is provided with an opening, the light emitting module is installed in the containing cavity, the surface lens is arranged at the opening, and the first surface of the surface lens faces the light emitting module; the collimating lens is arranged in the accommodating cavity and positioned between the light-emitting module and the surface lens.
6. The wall wash light of claim 5, wherein the collimating lens comprises: a long-strip-shaped lens body, wherein the lens body is provided with an incident light groove extending along the length direction; the inner wall surface of the incident light groove comprises a normal incident surface, a first lateral incident surface and a second lateral incident surface; the lens body is provided with a first reflecting surface, a second reflecting surface and an emergent surface; the emergent surface is opposite to the normal incident surface, the first reflecting surface is connected with the first lateral incident surface and the emergent surface, the second reflecting surface is connected with the second lateral incident surface and the emergent surface, and partial light enters the first lateral incident surface, is reflected by the first reflecting surface and then is emitted through the emergent surface; part of light rays enter the second lateral incident surface, are reflected by the second reflecting surface and then are emitted through the emergent surface; and part of the light rays are emitted to the emergent surface through the normal incidence surface.
7. The wall wash light of claim 6, wherein the first reflective surface and the second reflective surface are each parabolic surfaces.
8. The wall washing lamp as claimed in claim 6, wherein the lamp body comprises a bottom wall, a high side wall and a low side wall connected to two sides of the bottom wall, the surface lens is installed between the high side wall and the low side wall and forms an included angle with the bottom wall, a support plate is installed in the accommodating cavity, the support plate is parallel to the surface lens, and the light emitting module is installed on the support plate.
9. The wall wash light of claim 8, wherein the first curve of the protrusion is closer to the high side wall than the second curve.
10. The wall wash light of claim 5 wherein the light module includes an elongated circuit board and a plurality of light sources mounted on the circuit board, the plurality of light sources being spaced apart along a length of the circuit board.
CN202111630573.9A 2021-12-28 2021-12-28 Face lens and wall washing lamp Pending CN115308824A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111630573.9A CN115308824A (en) 2021-12-28 2021-12-28 Face lens and wall washing lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111630573.9A CN115308824A (en) 2021-12-28 2021-12-28 Face lens and wall washing lamp

Publications (1)

Publication Number Publication Date
CN115308824A true CN115308824A (en) 2022-11-08

Family

ID=83853376

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111630573.9A Pending CN115308824A (en) 2021-12-28 2021-12-28 Face lens and wall washing lamp

Country Status (1)

Country Link
CN (1) CN115308824A (en)

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