EP2522901A1 - Luminaire - Google Patents

Luminaire Download PDF

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Publication number
EP2522901A1
EP2522901A1 EP12159347A EP12159347A EP2522901A1 EP 2522901 A1 EP2522901 A1 EP 2522901A1 EP 12159347 A EP12159347 A EP 12159347A EP 12159347 A EP12159347 A EP 12159347A EP 2522901 A1 EP2522901 A1 EP 2522901A1
Authority
EP
European Patent Office
Prior art keywords
cover
opening
luminaire
main case
case
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.)
Withdrawn
Application number
EP12159347A
Other languages
German (de)
English (en)
French (fr)
Inventor
Yoshiji Kamata
Hirokazu Otake
Takayoshi Moriyama
Makoto Yamazaki
Shinichi Kumashiro
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.)
Toshiba Lighting and Technology Corp
Original Assignee
Toshiba Lighting and 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 Toshiba Lighting and Technology Corp filed Critical Toshiba Lighting and Technology Corp
Publication of EP2522901A1 publication Critical patent/EP2522901A1/en
Withdrawn legal-status Critical Current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
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • F21V15/013—Housings, e.g. material or assembling of housing parts the housing being an extrusion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S4/00—Lighting devices or systems using a string or strip of light sources
    • F21S4/20—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports
    • F21S4/28—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports rigid, e.g. LED bars
    • 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
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • F21V15/015—Devices for covering joints between adjacent lighting devices; End coverings
    • 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
    • F21V31/00—Gas-tight or water-tight arrangements
    • F21V31/005—Sealing arrangements therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • 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
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • 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]

Definitions

  • Embodiments described herein relate generally to a luminaire having waterproof performance suitable for outdoor use.
  • a luminaire used outdoors includes, in order to prevent moisture such as rainwater from intruding into an appliance main body, a waterproof structure in which a seal member or the like is disposed in the appliance main body.
  • a metal case functioning as a shell is integrally molded in a cylindrical shape by extrusion molding and an LED or the like is housed in the case as a light source.
  • end plate members are attached to close openings on both end sides of the case.
  • a translucent cover is attached to an opening on a front surface side of the case (an opening for irradiating light).
  • a luminaire in general, according to one embodiment, includes a cylindrical main case opened at both ends in a longitudinal direction and opened on a front surface side.
  • a light source section is attached to the inside of the main case.
  • the openings at both the ends in the longitudinal direction of the main case are closed by two end plate members.
  • a seal-member disposing section continuous in an annular shape is provided around the opening on the front surface side of the main case.
  • the seal-member disposing section is provided over the main case and the two end plate members.
  • a ring-shaped seal member is attached to the seal-member disposing section.
  • a cover having translucency configured to close the opening on the front surface side is attached in contact with the seal member.
  • a luminaire 100 according to an embodiment is explained below with reference to FIGS. 1 to 8 .
  • the same components are denoted by the same reference numerals and signs and redundant explanation of the components is omitted.
  • the luminaire 100 is mainly used outdoors.
  • the luminaire 100 is used for irradiating light on and lighting up an outer wall of a building in order to reproduce a beautiful night scene.
  • a luminaire shown in FIG. 1 has a structure in which two luminaires 100 are coupled in a longitudinal direction.
  • the luminaire 100 includes an attachment member F fixed to a structure such as a building.
  • the attachment member F includes a pedestal p and an arm a.
  • the pedestal p is fixed to the structure.
  • the luminaire 100 is attached to a distal end side of the arm a.
  • the arm a can pivot with one end side set as a fulcrum.
  • a direction of light irradiated from the luminaire 100 can be changed as appropriate by adjusting a pivoting angle of the arm a.
  • the light irradiated from the luminaire 100 is directed upward in the figure.
  • the attachment member F is not limited to the configuration explained above and only has to be an attachment member that can support the luminaire 100 attached thereto.
  • One luminaire 100 may be set or plural luminaires 100 may be coupled and set.
  • the number of luminaires 100 only has to be selected as appropriate according to an object on which light is irradiated.
  • the luminaire 100 includes a main case 1, an inner case 2 housed and arranged on the inside of the main case 1, a light source section 3 arranged on the inside of the inner case 2, a power supply circuit 4, an optical component 5 and a first cover 6 disposed on a front surface side of the light source section 3 (a light irradiating direction side), and a second cover 7 disposed on the front surface side of the first cover 6.
  • the front surface side indicates a side on which the light of the light source section 3 is extracted.
  • the front surface side is an upper side in FIG. 1 .
  • the main case 1 is molded in a cylindrical shape by extrusion molding of an aluminum material having high thermal conductivity. More specifically, the main case 1 has a laterally long shape extending in a substantially horizontal direction. A space for housing the inner case 2 explained later is provided on the inside of the main case 1.
  • the main case 1 is opened at both ends in a longitudinal direction thereof.
  • An opening 11 (see FIG. 2 ) having a rectangular shape along the longitudinal direction is formed on the front surface side of the main case.
  • the opening 11 functions as an irradiation opening for irradiating the light of the light source section 3. As shown in FIG. 4 , two openings at both the ends in the longitudinal direction of the main case 1 are connected at both ends in the longitudinal direction of the opening 11.
  • the main case 1 is desirably molded by the extrusion molding. However, this is not a limitation. A method of molding the main case 1 is not specifically limited and may be any method.
  • Supporting sections 12 for supporting the first cover 6 are formed at both edges along the longitudinal direction of the opening 11 of the main case 1 (see FIG. 3 ).
  • the supporting sections 12 include groove-shaped sections 12a extending in the longitudinal direction. In other words, the groove-shaped sections 12a are respectively linearly provided along both the edges of the opening 11.
  • an attachment supporting section 13 for connecting the attachment member F is provided on an outer surface of the main case 1.
  • the attachment supporting section 13 is provided over substantially the entire length of the main case 1.
  • the cross section of the attachment supporting section 13 has a C shape.
  • An attachment rail (not shown) is inserted into the attachment supporting section 13 and fixed to the attachment member F by bolts.
  • the main case 1 is attached to the attachment member F and supported.
  • a pair of end plate members 14 that respectively close the two openings at the both ends in the longitudinal direction of the main case 1 are attached to the openings.
  • the end plate members 14 have a shape substantially the same as the openings (see FIG. 2 ) of the main case 1.
  • the end plate member 14 on the left side in FIG. 2 is representatively shown.
  • the end plate members 14 include groove-shaped sections 14a at edges on the front surface side.
  • the groove-shaped sections 14a have a continuous shape bent in a substantially U shape.
  • end plate members 14 include attachment supporting sections 14b having a C shape in cross section to be continuous to the attachment supporting section 13 of the main case 1.
  • the end plate members 14 are screwed and attached to the openings at both the ends in the longitudinal direction of the main case 1 via seal members 14c (shown in FIG. 7 and not shown in FIG. 2 ).
  • a seal-member disposing section 8 connected in an annular shape is formed around the opening 11 of the main case 1.
  • the seal-member disposing section 8 is a groove in which the groove-shaped sections 12a formed at the edges of the opening 11 of the main case 1 and the groove-shaped sections 14a formed at the edges on the front surface side of the two end plate members 14 are connected in an annular shape.
  • a ring-shaped seal member 62 is attached to the seal-member disposing section 8.
  • the length of the seal member 62 is substantially equal to the length of the seal-member disposing section 8.
  • the seal member 62 is attached over the edges of the opening 11 of the main case 1 and the edges of the end plate members 14. In other words, the seal member 62 is attached across joining sections of the main case 1 and the end plate members 14.
  • an O ring circular in cross section formed of an elastic member such as synthetic rubber is used as the seal member 62.
  • the inner case 2 is a resin case having an insulation property. Like the main case 1, the inner case 2 is molded in a cylindrical shape by extrusion molding. Both ends in the longitudinal direction of the inner case 2 are opened. A slit-shaped irradiation opening 21 extending along the longitudinal direction is formed on the front surface side of the inner case 2. The inner case 2 is inserted from one of the openings at both the ends of the main case 1 and arranged in the space on the inside of the main case 1. At this point, the inner case 2 is attached in a posture in which the irradiation opening 21 overlaps the opening 11 of the main case 1.
  • the light source section 3 and the optical component 5 are attached to the inside of the inner case 2.
  • Two holding grooves 22 for holding the light source section 3 are formed on a wall on the inner side of the inner case 2 to extend in the longitudinal direction.
  • Holding grooves 23 for holding the optical component 5 are formed at both edges along the longitudinal direction of the irradiation opening 21 to extend in the longitudinal direction.
  • Two light blocking louvers 24 standing toward the front surface side are integrally formed at the edges of the irradiation opening 21.
  • the light blocking louvers 24 extend straight in the longitudinal direction of the inner case 2.
  • the light blocking louvers 24 play a function of blocking the light emitted from the light source section 3 and controlling to distribute the light.
  • the light source section 3 includes a substrate 31 and plural light-emitting elements 32 mounted on the substrate 31.
  • the light source section 3 is attached to a substrate attachment plate 33 having insulation properties.
  • the substrate attachment plate 33 is held by the holding grooves 22 of the inner case 2. Consequently, the light source section 3 is housed and arranged in the inner case 2.
  • the substrate 31 is formed in a substantially rectangular shape.
  • the plural light-emitting elements 32 are mounted linearly side by side with a predetermined space apart from one another along the longitudinal direction of the substrate 31.
  • a distance between the light-emitting elements 32 adjacent to each other is substantially fixed. In this embodiment, the distance is about 50 mm.
  • the substrate 31 is formed of a flat plate of glass epoxy resin (FR-4), which is an insulating material. On a surface side of the substrate 31, a wiring pattern formed of a copper foil is formed. A white resist layer is formed on the surface side of the substrate 31.
  • FR-4 glass epoxy resin
  • a glass composite substrate (CEM-3), a ceramics material, or the like can be applied.
  • the substrate 31 is made of metal, a base substrate of metal in which an insulating layer is superimposed over the entire surface of a base plate having high thermal conductivity and excellent in thermal radiation properties such as aluminum can be applied.
  • Each of the light-emitting elements 32 is, for example, a light-emitting diode (LED) and is an LED package of a surface mounting type.
  • the light-emitting element 32 schematically includes an LED chip disposed in a main body formed of ceramics or synthetic resin and translucent resin for mold such as epoxy resin or silicone resin for sealing the LED chip.
  • the LED chip is, for example, an LED chip that emits blue light.
  • a phosphor is mixed in the translucent resin.
  • An yellow phosphor that emits yellowish light, which is in a complementary relation with blue light, is used as the phosphor to enable the light-emitting element 32 to emit white light.
  • a bare chip of the LED may be directly mounted on the substrate 31 or an LED of a bullet type may be mounted.
  • a mounting system or method is not specifically limited.
  • the power supply circuit 4 is provided on the substrate 31 of the light source section 3. Specifically, circuit components 41 such as a rectifier, a capacitor, and a resistance element included in the power supply circuit 4 are mounted on the substrate 31 of the light source section 3. Therefore, the light-emitting elements 32 and the circuit components 41 are mounted on the same substrate 31.
  • the circuit components 41 are desirably mounted along a row of the linearly arranged light-emitting elements 32 and on both sides or one side of the row. Consequently, it is possible to effectively use a mounting area of the substrate 31.
  • the power supply circuit 4 is connected to a not-shown commercial alternating-current power supply via a not-shown power supply line connected to a power supply terminal 42.
  • the power supply circuit 4 functions to receive power supply from the commercial alternating-current power supply and generate a direct-current output.
  • the power supply circuit 4 is configured by, for example, connecting a smoothing capacitor between output terminals of a full-wave rectifier circuit and connecting a direct-current voltage converting circuit and current detecting means to the smoothing capacitor.
  • the power supply circuit 4 is connected to the light-emitting elements 32 via the wiring pattern.
  • the power supply circuit 4 supplies the direct-current output to the light-emitting elements 32 and controls to light the light-emitting elements 32.
  • the optical component 5 is, for example, a prism sheet.
  • the prism sheet 5 has translucency and is formed in an elongated rectangular shape. Both ends along the longitudinal direction of the prism sheet 5 are held in the holding grooves 23 of the inner case 2.
  • the prism sheet 5 closes the irradiation opening 21 of the inner case 2 and is arranged on the front surface side of the row of the light-emitting elements 32.
  • the prism sheet 5 has fine grooves formed on a surface and has a function of refracting and diffusing lights emitted from the light-emitting elements 32 in the longitudinal direction.
  • the first cover 6 has a rectangular tabular shape and is, for example, a transparent glass plate. Both end edges along the longitudinal direction of the glass plate 6 are placed at front ends of the light blocking louvers 24 formed in the inner case 2 and placed on the supporting sections 12 of the main case 1. The front surface side of both the end edges of the glass plate 6 along the longitudinal direction is pressed from the front surface side by two pressing plates 61 and fastened and fixed to the main case 1. The height of the light blocking louvers 24 is designed to height flush with the supporting sections 12 of the main case 1 in a state in which the inner case 2 is housed and arranged in the main case 1.
  • Each of the pressing plates 61 has plural (in this embodiment, five) screw holes spaced apart in the longitudinal direction.
  • the pressing plates 61 are screwed and fixed to the front surface side of the main case 1.
  • a seal member 62 housed and arranged in the annular seal-member disposing section 8 formed by the groove-shaped sections 12a of the main case 1 and the groove-shaped sections 14a of the end plate members 14 is pressed by the glass plate 6 toward the supporting sections 12 and elastically deformed. Therefore, the opening 11 of the main case 1 is sealed by the glass plate 6 and the seal member 62 to prevent moisture and dust from intruding into the inside of the main case 1. As a result, waterproof performance can be secured.
  • the second cover 7 is disposed to be spaced apart on the front surface side of the first cover 6 and functions to cover the front surface side of the main case 1.
  • a center 71 of the second cover 7 is bent to be slightly convex to the front surface side. At least the center 71 has translucency.
  • the second cover 7 configured in this way has a function of further improving the waterproof performance and protecting the first cover 6.
  • the second cover 7 is not provided, it is likely that water accumulates in the concave section and deterioration in the waterproof performance and deterioration in transmissivity of light due to adhesion of soil to a surface of the first cover 6 occur.
  • the second cover 7 is provided as in this embodiment, for example, water dropping and adhering to a surface of the second cover 7 flows down according to the convex shape of the center 71. Therefore, it is possible to secure the waterproof performance for a long period. Further, it is possible to suppress the adhesion of soil to the first cover 6 and suppress the deterioration in the transmissivity of light.
  • the light source section 3 (including the power supply circuit 4) attached to the substrate attachment plate 33 and the prism sheet functioning as the optical component 5 are incorporated into the inner case 2.
  • the substrate attachment plate 33 is inserted through from one side of the openings at both the ends of the inner case 2 and slid to the holding grooves 22 of the inner case 2 to be mounted.
  • the prism sheet 5 is slid to the holding grooves 23 of the inner case 2 to be mounted. Consequently, the light source section 3 and the optical component 5 are held by the insulative inner case 2.
  • the inner case 2 is attached to the main case 1. Specifically, the inner case 2 is slid to the space on the inner side of the main case 1 and inserted from one side of the openings at the both ends of the main case 1.
  • the end plate members 14 are screwed and attached to the openings at both the ends of the main case 1 via the seal members 14c (shown in FIG. 7 ).
  • the ring-shaped seal member 62 is disposed in the seal-member disposing section 8 formed by the groove-shaped sections 12a of the main case 1 and the groove-shaped sections 14a of the end plate members 14.
  • the first cover 6 is arranged in a place for closing the opening 11 of the main case 1 to cover the seal member 62.
  • the two pressing plates 61 are arranged to be partially placed on both the edges of the first cover 6.
  • the two pressing plates 61 are screwed and fixed to the main case 1.
  • the first cover 6 has a size for covering the entire seal member 62. Therefore, by fastening and fixing the first cover 6 using the two pressing plates 61, the seal member 62 arranged around the opening 11 is uniformly pressed over the entire length of the seal member 62 and air tightness is improved.
  • the second cover 7 is slid to the front surface side of the main case 1 and arranged from one side at both the ends of the main case 1. Thereafter, two attachment screws S ( FIG. 2 ) are screwed into screw holes 14e provided on sidewalls of the end plate members 14 from a side to fix the second cover 7.
  • the seal member 62 is arranged in the seal-member disposing section 8 formed by connecting the groove-shaped sections 14a on the front surface side of the end plate members 14, which closes the openings at both the ends in the longitudinal direction of the main case 1, and the groove-shaped sections 12a on the front surface side of the main case 1. Consequently, it is possible to improve the air tightness of the opening 11 of the main case 1 and secure the sufficient waterproof performance.
  • the light source section 3 and the optical component 5 can be inserted and incorporated from the opening of the inner case 2.
  • the inner case 2 in which the light source section 3 and the optical component 5 are disposed can be inserted and incorporated from the opening of the main case 1. Therefore, according to this embodiment, it is possible to simplify the process for assembling the luminaire 100.
  • the light source section 3 is incorporated in the resin case having an insulating property, which is the inner case 2, it is possible to secure an insulating property with a compact form.
  • the opening 11 of the main case 1 is sealed over the groove-shaped sections 12a of the main case 1 and the groove-shaped sections 14a of the end plate members 14 and using the ring-shaped seal member 62. Therefore, it is possible to improve the waterproof performance and realize an effect that work for attaching the seal member 62 is simplified.
  • the light-emitting elements 32 are energized and lit. Lights emitted from the light-emitting elements 32 are transmitted through the prism sheet functioning as the optical component 5 and the first and second covers 6 and 7 and irradiated in a target direction.
  • the lights emitted from the light-emitting elements 32 to travel straight mainly in the front surface side direction are made incident on the optical component 5, the lights travel to be refracted and diffused in the longitudinal direction.
  • the lights emitted from the light-emitting elements 32 are diffused to spread in the longitudinal direction. Therefore, even if the light-emitting elements 32 are spaced apart, continuity of the lights in the longitudinal direction is suppressed from being interrupted. Therefore, it is possible to secure the continuity of the lights.
  • the light blocking louvers 24 are provided at the edges of the irradiation opening 21, it is difficult to visually recognize the lights directly emitted from the light-emitting elements 32. Therefore, it is possible to show an irradiated surface as if the irradiated surface is uniformly shining and further secure the continuity of the lights.
  • the ring-shaped seal member 62 is disposed in the seal-member disposing section 8 formed in the annular shape to be continuous to the opening edges on the front surface side in the main case 1 and the edges on the front surface side of the end plate members 14. Therefore, it is possible to secure the waterproof performance and realize improvement of reliability.
  • a solid-state light-emitting element such as an LED or an organic EL, a discharge lamp, or the like can be applied to the light source section 3.
  • the type of the light source section 3 is not specifically limited.
  • the luminaire 100 is suitably used outdoors. However, this is not a limitation.
  • the luminaire 100 may be used indoors.
  • the present invention can be applied to various luminaires used outdoors and indoors.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP12159347A 2011-05-13 2012-03-13 Luminaire Withdrawn EP2522901A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011108847A JP2012243393A (ja) 2011-05-13 2011-05-13 照明器具

Publications (1)

Publication Number Publication Date
EP2522901A1 true EP2522901A1 (en) 2012-11-14

Family

ID=45992041

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12159347A Withdrawn EP2522901A1 (en) 2011-05-13 2012-03-13 Luminaire

Country Status (2)

Country Link
EP (1) EP2522901A1 (ja)
JP (1) JP2012243393A (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012220969A1 (de) * 2012-11-16 2014-05-22 Osram Gmbh Leuchtenkörper und verfahren zum herstellen eines leuchtenkörpers
IT202000014014A1 (it) * 2020-06-11 2021-12-11 Cortem S P A Apparato di illuminazione e relativo procedimento di realizzazione
IT202000026443A1 (it) * 2020-11-05 2022-05-05 Cortem S P A Apparato di illuminazione e relativo procedimento di realizzazione

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104791634B (zh) * 2015-04-29 2018-01-30 广东福町电器实业有限公司 Led三防支架灯改进结构
JP6932883B2 (ja) * 2017-04-28 2021-09-08 コイト電工株式会社 照明装置
JP7472789B2 (ja) * 2018-07-13 2024-04-23 大日本印刷株式会社 投射装置、投射システム、及び、投射システム付き建造物
CN110985937A (zh) * 2019-12-20 2020-04-10 德清欧尚照明科技有限公司 一种防水led硬条灯

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5154507A (en) * 1991-01-18 1992-10-13 Collins William J Light with housing for linear lamp bulb
US6663261B1 (en) * 2002-03-20 2003-12-16 Thin-Lite Corporation Moisture resistant flourescent light fixture
DE202008017219U1 (de) * 2008-08-05 2009-04-16 Pyroswift Holding Co., Ltd., Wanchai Leuchtdioden-Lichtaggregat
US20100296287A1 (en) * 2009-05-19 2010-11-25 Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. Led lamp

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5154507A (en) * 1991-01-18 1992-10-13 Collins William J Light with housing for linear lamp bulb
US6663261B1 (en) * 2002-03-20 2003-12-16 Thin-Lite Corporation Moisture resistant flourescent light fixture
DE202008017219U1 (de) * 2008-08-05 2009-04-16 Pyroswift Holding Co., Ltd., Wanchai Leuchtdioden-Lichtaggregat
US20100296287A1 (en) * 2009-05-19 2010-11-25 Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. Led lamp

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012220969A1 (de) * 2012-11-16 2014-05-22 Osram Gmbh Leuchtenkörper und verfahren zum herstellen eines leuchtenkörpers
IT202000014014A1 (it) * 2020-06-11 2021-12-11 Cortem S P A Apparato di illuminazione e relativo procedimento di realizzazione
IT202000026443A1 (it) * 2020-11-05 2022-05-05 Cortem S P A Apparato di illuminazione e relativo procedimento di realizzazione
EP3995734A1 (en) * 2020-11-05 2022-05-11 Cortem S.p.A. Lighting apparatus and corresponding production method

Also Published As

Publication number Publication date
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