CN111412437A - Lighting device - Google Patents

Lighting device Download PDF

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Publication number
CN111412437A
CN111412437A CN201910011013.1A CN201910011013A CN111412437A CN 111412437 A CN111412437 A CN 111412437A CN 201910011013 A CN201910011013 A CN 201910011013A CN 111412437 A CN111412437 A CN 111412437A
Authority
CN
China
Prior art keywords
matching
lighting device
groups
matching groups
optical
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
CN201910011013.1A
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Chinese (zh)
Inventor
彭耀祈
张国辉
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.)
Lite On Electronics Guangzhou Co Ltd
Lite On Technology Corp
Original Assignee
Lite On Technology Corp
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 Lite On Technology Corp filed Critical Lite On Technology Corp
Priority to CN201910011013.1A priority Critical patent/CN111412437A/en
Publication of CN111412437A publication Critical patent/CN111412437A/en
Pending legal-status Critical Current

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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
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/06—Controlling the distribution of the light emitted by adjustment of elements by movement of refractors
    • 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
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/02—Cages
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/104—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening using feather joints, e.g. tongues and grooves, with or without friction
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/12—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by screwing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

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

Abstract

The invention discloses a lighting device which comprises a shell, a light-emitting component and an optical component. The shell is provided with an accommodating space. The shell comprises a plurality of first matching groups and is positioned on the inner wall of the shell. The light-emitting component is arranged in the shell and is positioned in the accommodating space. The optical assembly includes a second matching group located at an outer edge of the optical assembly and adapted to be respectively matched with the first matching groups of the housing, wherein the optical assembly is selectively matched with one of the first matching groups and is adapted to be moved from one of the first matching groups of the housing to another one of the first matching groups in a direction parallel to a transmission direction of light emitted from the light emitting assembly to change a focal length of the lighting device.

Description

Lighting device
Technical Field
The present invention relates to an optical device, and more particularly, to an illumination device.
Background
In current traffic systems, lighting devices, such as traffic lights, are often used to indicate traffic signs. Generally, traffic lights are classified into two designs, a circle light and an image light. Nowadays, the optical design of traffic lights needs to satisfy the requirements defined by the regulations, so the optical design of circular lights needs to satisfy the light intensity distribution, and the optical design of image lights needs to satisfy the requirements of the luminance uniformity of the light emitting surface of the lamp in addition to the light intensity distribution. However, if the optical conditions are to be met, the optical architecture must be changed to adjust the light intensity distribution. Therefore, how to design a traffic light fixture with a zoom function effectively achieves an optimal matching design of light intensity distribution and surface luminance uniformity by using a zoom effect on the premise of not changing an optical component architecture, and can respectively satisfy the light intensity distribution and the surface luminance uniformity under different zoom effects, so that the light fixture architecture has a sharing characteristic, which is a common objective that needs to be addressed by persons in the art.
Disclosure of Invention
The invention provides a lighting device, which can adjust the focal length by simple means to illuminate the light intensity distribution meeting the regulations of traffic.
The invention provides a lighting device which comprises a shell, a light-emitting component and an optical component. The shell is provided with an accommodating space. The shell comprises a plurality of first matching groups and is positioned on the inner wall of the shell. The light-emitting component is arranged in the shell and is positioned in the accommodating space. The optical assembly includes a second matching group located at an outer edge of the optical assembly and adapted to be respectively matched with the first matching groups of the housing, wherein the optical assembly is selectively matched with one of the first matching groups and is adapted to be moved from one of the first matching groups of the housing to another one of the first matching groups in a direction parallel to a transmission direction of light emitted from the light emitting assembly to change a focal length of the lighting device.
In an embodiment of the invention, the first matching groups are respectively different from the light emitting elements in distance.
In an embodiment of the invention, the second matching group of the optical assembly has an external thread structure, and each of the first matching groups of the housing has an internal thread structure.
In an embodiment of the invention, the internal thread structures of the first matching group are continuously and adjacently arranged.
In an embodiment of the invention, each of the first matching groups of the housing has a plurality of engaging portions, and the second matching group of the optical component has a plurality of engaging grooves, wherein in a direction perpendicular to a plane in which the optical component is located, the engaging portions of one portion of the first matching groups and the engaging portions of another portion of the first matching groups do not overlap with each other.
In an embodiment of the invention, an arrangement pitch of the engaging grooves in one part of the first matching group is the same as an arrangement pitch of the engaging grooves in the other part of the first matching group.
In an embodiment of the invention, the illumination device further includes a protective cover disposed on the housing to cover the accommodating space.
In an embodiment of the invention, the protective cover includes optical diffusion particles.
In an embodiment of the invention, the optical element includes optical diffusion particles.
In an embodiment of the invention, the optical component is a fresnel lens.
In view of the above, the housing of the lighting device of the present invention has a plurality of first matching groups, the optical assembly has a second matching group, and the second matching groups are adapted to be matched to the first matching groups, respectively. Thus, the distance of the optical assembly from the light emitting assembly can be changed by moving the optical assembly from one of the first matching groups of the housing to another one of the first matching groups. Therefore, the position of the internal optical assembly can be changed by simple means to adjust the focal length of the lighting device. Further, when the lighting device is applied to a traffic lighting system, the focal length of the lighting device can be adjusted by a simple means to illuminate a light intensity distribution meeting the regulations of traffic.
In order to make the aforementioned and other features and advantages of the invention more comprehensible, embodiments accompanied with figures are described in detail below.
Drawings
Fig. 1 is a perspective view of a lighting device according to an embodiment of the invention.
Fig. 2 is a perspective exploded view of the lighting device of fig. 1.
Fig. 3 is a schematic front view of the optical assembly of fig. 1.
Fig. 4 is a front schematic view of the housing of fig. 1.
Fig. 5 is a schematic cross-sectional view of the lighting device of fig. 1.
Fig. 6 is a schematic diagram of a light distribution curve of the lighting device according to an embodiment of the invention.
Fig. 7 is a perspective exploded view of a lighting device according to another embodiment of the present invention.
Detailed Description
Fig. 1 is a perspective view of a lighting device according to an embodiment of the invention. Fig. 2 is a perspective exploded view of the lighting device of fig. 1. Please refer to fig. 1 and fig. 2. The present embodiment provides an illumination apparatus 100, which can adjust the focal length of the illumination apparatus 100 by changing the position of the internal optical components through simple means. The illumination device 100 of the present embodiment can be applied to a traffic illumination system, such as a traffic light, a safety light, and the like. In other words, in the application to the lighting system for traffic, the focal length of the lighting device 100 can be adjusted by simple means to illuminate a light intensity distribution that meets the regulations of traffic-related regulations.
In the present embodiment, the lighting device 100 includes a housing 110, a light emitting element 120 and an optical element 130, the housing 110 has an accommodating space C for accommodating the light emitting element 120 and the optical element 130, in the present embodiment, the light emitting element 120 uses, for example, a light emitting diode (L light-emitting diode, L ED), and the optical element 130 uses, for example, a Fresnel lens (Fresnel lens), but other types of light emitting elements and optical elements may also be used in some embodiments.
The housing 110 includes a plurality of first matching groups 112_1, 112_2, 112_3, the first matching groups 112_1, 112_2, 112_3 are located on the inner wall of the housing 110, and the optical assembly 130 includes a second matching group 132 located at the outer edge of the optical assembly 130, wherein the second matching group 132 of the optical assembly 130 can be matched with the plurality of first matching groups 112_1, 112_2, 112_3 of the housing 110, respectively. It is worth mentioning that the first matching groups 112_1, 112_2, and 112_3 are respectively located at different distances from the light emitting element 120. That is, the first matching groups 112_1, 112_2, and 112_3 are located at different depth positions on the inner wall of the housing 110. Therefore, a user can move the optical assembly 130 from one of the first matching sets 112_1, 112_2, and 112_3 to the other first matching set 112_1, 112_2, and 112_3 through an operation means, so as to change the distance between the optical assembly 130 and the light emitting assembly 120, thereby achieving the effect of changing the focal length of the lighting apparatus 100.
Fig. 3 is a schematic front view of the optical assembly of fig. 1. Fig. 4 is a front schematic view of the housing of fig. 1. Please refer to fig. 2 to fig. 4. In detail, in the present embodiment, the housing 110 includes three first matching groups 112_1, 112_2, and 112_3, and each of the first matching groups 112_1, 112_2, and 112_3 has a plurality of engaging portions T, for example, three engaging tenon structures, as shown in fig. 4. The second matching group 132 of the optical assembly 130 includes a plurality of engaging grooves U, such as three engaging grooves, as shown in fig. 3. Here, the engaging portion T of the first matching group 112_1, the engaging portion T of the first matching group 112_2, and the engaging portion T of the first matching group 112_3 do not overlap each other in the direction parallel to the transmission direction F of the light emitted from the light emitting module 120.
Fig. 5 is a schematic cross-sectional view of the lighting device of fig. 1. Please refer to fig. 3 to fig. 5. Therefore, when the plurality of engaging grooves U in the second matching group 132 of the optical assembly 130 are dislocated from the plurality of engaging portions T in the first matching group 112_1 of the housing 110, the optical assembly 130 is located at the first position in the accommodating space C, as shown in fig. 5. If the user wants to change the focal length of the lighting device 100, the optical assembly 130 can be rotated to align the plurality of engaging grooves U in the second matching group 132 with the plurality of engaging portions T in the first matching group 112_1 of the housing 110, so that the engaging grooves U can move in the transmission direction F parallel to the light emitted by the light emitting assembly 120 through the plurality of engaging portions T in the first matching group 112_1 to a second position in the accommodating space C by being misaligned with the plurality of engaging portions T in the first matching group 112_ 2.
To continue to change the focal length of the illumination apparatus 100, the optical assembly 130 can be moved to other positions in the accommodating space C by the engaging portions T corresponding to the first matching groups 112_1, 112_2, and 112_3 according to the above-mentioned operation manner. In this way, the focal length of the illumination apparatus 100 can be adjusted by changing the position of the internal optical component by simple means. Further, in the application to the traffic lighting system, the focal length of the lighting device 100 can be adjusted by a simple means to illuminate a light intensity distribution that meets the regulations of traffic.
In the present embodiment, the arrangement pitch of the plurality of engaging portions T in the same first matching group 112_1, 112_2, 112_3 is equal to the arrangement pitch of the plurality of engaging portions T in another first matching group 112_1, 112_2, 112_ 3. That is, the arrangement pitch of the engaging portions T of the first matching group 112_1, the arrangement pitch of the engaging portions T of the first matching group 112_2, and the arrangement pitch of the engaging portions T of the first matching group 112_3 are all equal. The arrangement pitch of the engaging grooves U of the second matching group 132 is the same as the arrangement pitch of the engaging portions T of each of the first matching groups 112_1, 112_2, and 112_ 3. Therefore, the flexibility of changing the focal length can be improved, and the structure is easy to manufacture.
Fig. 6 is a schematic diagram of a light distribution curve of the lighting device according to an embodiment of the invention. Please refer to fig. 1 and fig. 6. In the present embodiment, the light distribution curve shown in fig. 6 can be generated by the illumination device 100 of fig. 1, and the illumination device 100 of fig. 1 will be described as an example. In addition, in the present embodiment, the illumination device 100 may further selectively include optical diffusion particles in the optical element 130 or the protective cover 140. Therefore, the light emitted by the light emitting element 120 can be homogenized and concentrated after passing through the optical element 130 or the protective cover 140, as shown in fig. 6.
Fig. 7 is a perspective exploded view of a lighting device according to another embodiment of the present invention. Please refer to fig. 7. The illumination device 100A of the present embodiment is similar to the illumination device 100 of fig. 1. The difference is that in the present embodiment, the second matching group 132A of the optical assembly 130 has an external thread structure, and each first matching group 112A of the housing 110 has an internal thread structure. In detail, in the present embodiment, the internal thread structures of the first matching groups 112A can be arranged adjacently and continuously. In other words, the continuous first matching groups 112A form internal screw structures at different depth positions, so that the optical assembly 130 can be moved to different depths in the housing 110 by matching the second matching groups 132A with the first matching groups 112A, thereby changing the focal length. In this way, the focal length of the illumination apparatus 100A can be adjusted by changing the position of the internal optical component by simple means. Further, in the application to the traffic lighting system, the focal length of the lighting device 100A can be adjusted by a simple means to illuminate a light intensity distribution that meets the regulations relating to traffic.
In summary, the housing of the lighting device of the present invention has a plurality of first matching groups, the optical assembly has a second matching group, and the second matching groups are adapted to match with the first matching groups respectively. Thus, the distance of the optical assembly from the light emitting assembly can be changed by moving the optical assembly from one of the first matching groups of the housing to another one of the first matching groups. Therefore, the position of the internal optical assembly can be changed by simple means to adjust the focal length of the lighting device. Further, when the lighting device is applied to a traffic lighting system, the focal length of the lighting device can be adjusted by a simple means to illuminate a light intensity distribution meeting the regulations of traffic.
Although the present invention has been described with reference to the above embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (10)

1. An illumination device, comprising:
the shell is provided with an accommodating space and comprises a plurality of first matching groups, and the first matching groups are positioned on the inner wall of the shell;
the light-emitting component is arranged in the shell and is positioned in the accommodating space; and
an optical assembly including a second matching group at an outer edge of the optical assembly adapted to be respectively matched with the first matching groups of the housing, wherein the optical assembly is selectively matched with one of the first matching groups and adapted to be moved from one of the first matching groups of the housing to another one of the first matching groups in a direction parallel to a transmission direction of light emitted from the light emitting assembly to change a focal length of the lighting device.
2. A lighting device as recited in claim 1, wherein said first matching groups are respectively located at different distances from said light emitting elements.
3. A lighting device as recited in claim 1, wherein said second mating group of said optical assemblies has an external thread configuration and each of said first mating groups of said housings has an internal thread configuration.
4. A lighting device as recited in claim 3, wherein said first mating set of internal thread formations are in a continuous adjacent arrangement.
5. A lighting device as recited in claim 1, wherein each of said first matching groups of said housing has a plurality of engaging portions, and said second matching group of said optical assembly has a plurality of engaging grooves, wherein a portion of said engaging portions of said first matching groups and another portion of said engaging portions of said first matching groups do not overlap each other in a direction perpendicular to said plane in which said optical assembly is located.
6. A lighting device as recited in claim 5, wherein an arrangement pitch of a part of said engaging grooves is the same as an arrangement pitch of another part of said engaging grooves in said first matching group.
7. A lighting device as recited in claim 1, further comprising:
and the protective cover body is arranged on the shell to cover the accommodating space.
8. The illumination device of claim 7, wherein the protective enclosure comprises optically diffusing particles.
9. The illumination device of claim 1, wherein the optical component comprises optical diffusing particles.
10. A lighting device as recited in claim 1, wherein said optical component is a fresnel lens.
CN201910011013.1A 2019-01-07 2019-01-07 Lighting device Pending CN111412437A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910011013.1A CN111412437A (en) 2019-01-07 2019-01-07 Lighting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910011013.1A CN111412437A (en) 2019-01-07 2019-01-07 Lighting device

Publications (1)

Publication Number Publication Date
CN111412437A true CN111412437A (en) 2020-07-14

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CN201910011013.1A Pending CN111412437A (en) 2019-01-07 2019-01-07 Lighting device

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201203029Y (en) * 2008-05-06 2009-03-04 邱锡文 Adjustable light distance type bicycle lamp
CN201611027U (en) * 2009-12-10 2010-10-20 卓维帆 Lamp structure with multiple-zooming effect
CN102679249A (en) * 2011-03-18 2012-09-19 海洋王照明科技股份有限公司 Illuminating device
CN103939852A (en) * 2014-04-30 2014-07-23 东莞雅士电子有限公司 Method for adjusting projection light angle of LED lamp
CN204730125U (en) * 2014-09-19 2015-10-28 东莞雅士电子有限公司 The centralized lamp of adjustable rising angle
CN205535185U (en) * 2016-01-04 2016-08-31 罗暄 Waterproof flashlight can zoom
CN206036936U (en) * 2016-08-29 2017-03-22 浚洸光学科技股份有限公司 Optical lens combination and lighting device
CN109386745A (en) * 2017-08-11 2019-02-26 小丝电工株式会社 Lamp module

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201203029Y (en) * 2008-05-06 2009-03-04 邱锡文 Adjustable light distance type bicycle lamp
CN201611027U (en) * 2009-12-10 2010-10-20 卓维帆 Lamp structure with multiple-zooming effect
CN102679249A (en) * 2011-03-18 2012-09-19 海洋王照明科技股份有限公司 Illuminating device
CN103939852A (en) * 2014-04-30 2014-07-23 东莞雅士电子有限公司 Method for adjusting projection light angle of LED lamp
CN204730125U (en) * 2014-09-19 2015-10-28 东莞雅士电子有限公司 The centralized lamp of adjustable rising angle
CN205535185U (en) * 2016-01-04 2016-08-31 罗暄 Waterproof flashlight can zoom
CN206036936U (en) * 2016-08-29 2017-03-22 浚洸光学科技股份有限公司 Optical lens combination and lighting device
CN109386745A (en) * 2017-08-11 2019-02-26 小丝电工株式会社 Lamp module

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Application publication date: 20200714