CN208090482U - UV-LED curing light source systems - Google Patents
UV-LED curing light source systems Download PDFInfo
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- CN208090482U CN208090482U CN201820671305.9U CN201820671305U CN208090482U CN 208090482 U CN208090482 U CN 208090482U CN 201820671305 U CN201820671305 U CN 201820671305U CN 208090482 U CN208090482 U CN 208090482U
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Abstract
The utility model is related to a kind of UV-LED curing light sources systems, including the radiator being longitudinally extended and it is respectively fixedly connected with first end cover and second end cover in two longitudinal ends of radiator, there is the light source accommodating chamber being entirely longitudinally extended along it, the oral area of light source accommodating chamber to be provided with light penetrating panel for the downside of radiator；There is in light source accommodating chamber multiple be arranged in parallel and longitudinal light source slot of arc-shaped distribution, it is both provided with a UV-LED lamp bar groups in each longitudinal direction light source slot, every UV-LED lamp bars group is spliced and combined along longitudinal direction by the sub- lamp bars of multiple UV-LED, and the illumination spot of multiple UV-LED lamp bars groups is least partially overlapped；The oral area of each longitudinal direction light source slot is both provided with a bar shaped collector lens group, and each bar shaped collector lens group is spliced and combined along longitudinal direction by multiple sub- bar shaped collector lenses.The UV-LED curing light source systems of the utility model have the advantages that easily fabricated and repair, spotlight effect are good.
Description
Technical field
The utility model is related to one kind being used for UV（Ultraviolet light）The UV-LED light-source systems of curing apparatus.
Background technology
UV uv equipments utilize ultraviolet light（Usually 200-450nm）Irradiating ultraviolet light curing materials（Such as glue or
Ink）So that it is generated polymerisation to cure, there is very extensive application in industries such as printing, applications.Traditional UV light
For curing apparatus using UV mercury lamps as light source, power consumption is big, and needs to configure exhaust apparatus because UV mercury lamps generate ozone, causes to set
Standby overall operation is of high cost.Due to LED（Light emitting diode）With low power consumption, long-life, miniaturization, lightweight and be free of mercury
The advantages that ingredient, in recent years UV-LED light sources more and more substitute the use of UV mercury lamps on UV uv equipments.
It is stronger urgently it is expected that UV-LED curing light source systems have with the fast development of UV-curing technology, in industry
Exposure intensity.For this purpose, the common methods of the prior art are using with more powerful LED component and/or more dense LED
Device arranges to provide higher intensity of illumination.But this aspect easily causes LED component to occur " dead lamp " because of overheat now
As being on the other hand limited to the heat-sinking capability of system, the increase of such method intensity of illumination is limited, it is difficult to fully meet industry
Demand.
In addition, in order to meet the requirement of printing format, existing UV-LED curing light sources system usually has elongated structures,
It is middle to use the UV-LED lamp bars to match with printing format width/height.This problem is that UV-LED lamp bars are fabricated to
This height, difficulty are big, and when single or certain UV-LED light-emitting components in UV-LED lamp bars generate failure, need to entire UV-
LED light bar is replaced so that the maintenance cost of system is excessively high.
Invention content
In view of the deficiencies of the prior art, it is strong to be to provide a kind of ultraviolet lighting with enhancing for the main purpose of the utility model
Degree, the UV-LED curing light source systems easy to repair manufactured and spotlight effect is good.
In order to realize that above-mentioned main purpose, UV-LED curing light sources system provided by the utility model include longitudinal prolong
The radiator stretched and it is respectively fixedly connected with first end cover and second end cover in two longitudinal ends of radiator, under radiator
There is the light source accommodating chamber being entirely longitudinally extended along it, the oral area for stating light source accommodating chamber to be provided with light penetrating panel for side；Wherein：
Have in light source accommodating chamber it is multiple be arranged in parallel and longitudinal light source slot of arc-shaped distribution, in each longitudinal direction light source slot
Be both provided with a UV-LED lamp bar groups, every UV-LED lamp bars group spliced and combined along longitudinal direction by the sub- lamp bars of multiple UV-LED and
At；Multiple arc-shaped distribution settings of UV-LED lamp bars group, and its illumination spot is least partially overlapped；
The oral area of each longitudinal direction light source slot is both provided with a bar shaped collector lens group, and each bar shaped collector lens group is by more
A sub- bar shaped collector lens splices and combines along longitudinal direction.
In above-mentioned technical proposal, multiple arc-shaped distributions of UV-LED lamp bars group, which are arranged and pass through bar shaped collector lens group, to be carried out
Optically focused so that the illumination spot of multiple UV-LED lamp bars groups is least partially overlapped, in a manner of simple in structure and is inexpensive
So that UV-LED curing light source systems have the intensity of illumination of enhancing.Since adopting as covered in the prior art can not be used
It is reduced to heat dissipation performance with more powerful LED component and/or more dense LED arrangements, the system of the utility model
Requirement, thermal stability and service life are significantly improved.
Further, in the utility model UV-LED lamp bars group spliced and combined along longitudinal direction by the sub- lamp bars of multiple UV-LED and
At, reduce its manufacture difficulty and cost, and generate when the single or certain UV-LED light-emitting components in UV-LED lamp bar groups therefore
When barrier, it is only necessary to be replaced to the sub- lamp bars of corresponding UV-LED, reduce system maintenance cost.
Particularly, in the utility model bar shaped collector lens group spliced and combined along longitudinal direction by multiple sub- bar shaped collector lenses and
At, it is such to be advantageous in that, the shape of every sub- bar shaped collector lens can be accurately controlled, so that bar shaped collector lens
Group accurately can carry out optically focused and realize desired illumination spot.On the other hand, if by one bodily form of bar shaped collector lens
If, since its length is longer（It needs to match with printing format width/height）, it is easy to deformation is generated in the longitudinal direction,
Since the spotlight effect of collector lens is strictly dependent on its configuration design, this deformation will greatly influence its optically focused effect
Fruit, and then reduce curing efficiency.
A kind of specific implementation mode according to the present utility model, it is adjacent longitudinal direction light source slot between partition wall on be provided with it is more
A crossed beam trunking.Such to be advantageous in that, the connecting wire between the corresponding sub- lamp bars of UV-LED is arranged via crossed beam trunking cabling, connection
Conducting wire will not in a jumble be distributed in longitudinal light source slot and influence UV lighting effects.
Preferably, crossed beam trunking is formed in the mutual splicing of the sub- lamp bars of the adjacent UV-LED of any two in UV-LED lamp bar groups
Place, to realize the minimum of connecting wire cable run distance between the corresponding sub- lamp bars of UV-LED.
Another specific implementation mode according to the present utility model, the sub- lamp bars of UV-LED include circuit board and are welded on circuit
Multiple UV-LED lamp beads on plate, multiple UV-LED lamp beads along circuit board longitudinal arrangement, in order to carry out light distribution design.
Preferably, circuit board is metal base printed circuit board, the Metal Substrate of UV-LED lamp beads and metal base printed circuit board
Direct heat conduction connection between plate, to reduce UV-LED lamp beads to the thermal resistance of metal substrate.
Another specific implementation mode according to the present utility model, the sub- lamp bars of UV-LED include circuit board, are encapsulated in circuit board
On multiple UV-LED chips and coat the bar shaped package lens of UV-LED chips, multiple UV-LED chips are vertical along circuit board
To arrangement.Such to be advantageous in that, multiple UV-LED chips are packaged by common bar shaped package lens, and spotlight effect is more preferably.
Preferably, circuit board is metal base printed circuit board or ceramic circuit board, and the setting of UV-LED chips is printed in Metal Substrate
On the metal substrate of printed circuit board or the ceramic substrate of ceramic circuit board, metal substrate or ceramic substrate are for carrying UV-LED cores
The region of piece has ultraviolet light at least 85% reflectivity, to reduce the thermal resistance of the sub- lamp bars of UV-LED and improve the light extraction of system
Efficiency.
The both lateral sides of another specific implementation mode according to the present utility model, longitudinal light source notch have the first bar shaped
Card slot, the both lateral sides of sub- bar shaped collector lens have the lateral protrusions being plugged in the first strip-shaped clamp groove, with simple in structure
Realize the assembling of sub- bar shaped collector lens.
In the utility model, the quantity of longitudinal light source slot and UV-LED lamp bar groups is preferably 3-8, more preferably 4-6；
The overall width that multiple UV-LED lamp bars groups are formed by illumination spot is preferably 1 millimeter to 10 millimeters, more preferably 1 millimeter to 5
Millimeter.
The both lateral sides of another specific implementation mode according to the present utility model, light source accommodating chamber oral area have the second bar shaped
The both lateral sides of card slot, light penetrating panel are plugged in the second strip-shaped clamp groove, realize the assembling of light penetrating panel with simple in structure.
In order to more clearly illustrate the purpose of this utility model, technical solution and advantage, With reference to embodiment
The utility model is described in further detail.
Description of the drawings
Fig. 1 is the stereogram of the utility model UV-LED curing light sources system embodiment 1；
Fig. 2 is the first structure exploded view of the systems of UV-LED curing light sources shown in Fig. 1；
Fig. 3 is the second structural exploded view of the systems of UV-LED curing light sources shown in Fig. 1；
Fig. 4 is the third structural exploded view of the systems of UV-LED curing light sources shown in Fig. 1；
Fig. 5 is the transverse cross-sectional view of radiator in the systems of UV-LED curing light sources shown in Fig. 1；
Fig. 6 is the stereogram of radiator in the systems of UV-LED curing light sources shown in Fig. 1；
Fig. 7 is the transverse sectional view of the systems of UV-LED curing light sources shown in Fig. 1；
Fig. 8 is the schematic diagram for indicating the utility model UV-LED curing light source system illumination effects.
Specific implementation mode
Embodiment 1
As shown in Fig. 1 to 7, which includes the radiator 1 being longitudinally extended, first end cover 2, second
End cap 3, light penetrating panel 4 and head cover 5；Wherein, first end cover 2 and second end cover 3 pass through screw respectively（It is not shown in figure）Gu
Surely two longitudinal ends of radiator 1 are connected to；The downside of radiator 1 has the light source accommodating chamber being entirely longitudinally extended along it
101, the oral area in light source accommodating chamber 101 is arranged in light penetrating panel 4；Two longitudinal side walls 102 of radiator 1 upwardly extend, head cover 5
Pass through screw（It is not shown in figure）It is fixed on the top of 1 two longitudinal side walls 102 of radiator；It is fixed on head cover 5 that there are two handles
51。
First fluid channel 111 and the second fluid channel 112 for running through radiator 1 in the longitudinal direction are formed in radiator 1,
The inner surface in first fluid channel 111 and second fluid channel 112 is formed with the concaveconvex structure 113 being longitudinally extended, cold to increase
But the heat exchange area between fluid and radiator 1.The both ends in first fluid channel 111 and second fluid channel 112 respectively by
First end cover 2 and second end cover 3 are sealed, and are had the advantages that simple in structure and easily prepared.First fluid channel 111 and second
Fluid channel 112 is mutually isolated in 2 side of first end cover, and is then interconnected in 3 side of second end cover so that cooling fluid exists
One-way flow is formed in first fluid channel 111 and second fluid channel 112.Wherein, it is set between first end cover 2 and radiator 1
It is equipped with the first sealing ring around first fluid channel 111（It is not shown in figure）It is close with the second of circular second fluid channel 112
Seal（It is not shown in figure）, it is provided between second end cover 3 and radiator 1 logical around first fluid channel 111 and second fluid
The third sealing ring in road 112（It is not shown in figure）.
Specifically, the inside of first end cover 2 has around the seal groove 21 in first fluid channel 111 and around second fluid
The seal groove 22 in channel 112, the first sealing ring are arranged in the first seal groove 21, and the second sealing ring is arranged in the second seal groove 22
It is interior；The inside of second end cover 3 has the third seal groove 31 around first fluid channel 111 and second fluid channel 112, third
Sealing ring is arranged in third seal groove 31.The inside of first end cover 2 is also formed with first corresponding to first fluid channel 111
Groove 23, the second groove 24 corresponding to second fluid channel 112, the inside of second end cover 3 is formed with corresponding to first fluid
The third groove 32 in channel 111 and second fluid channel 112；It is such to be advantageous in that, cooling fluid can with first end cover 2 and
Second end cover 3 carries out fully quickly heat exchange, avoids the temperature of first end cover 2 and second end cover 3 excessively high.
The side that head cover 5 is located at first end cover 2 is formed with notch 52, and the both lateral sides of notch 52 are formed with support level
521, the both lateral sides of connection pedestal 6 are carried on support level 521 and are limited by support level 621.Connect the longitudinal direction of pedestal 6
Both ends are respectively formed with positioning step 61 and 62, and positioning step 61 stretches into 5 lower section of head cover close to head cover 5 and is limited, positioning table
Rank 62 is stretched into first end cover 2 close to first end cover 2 and is limited；Connection pedestal 6 is fixed on head cover 5 as a result,.Fluid connects
First 7 and electric connector 8 be arranged at side of the radiator 1 relative to light penetrating panel 4, convenient for by UV-LED curing light source systems
It is installed to the assembling that outer lead 81 and external fluid pipe 71 are carried out after UV-LED uv equipments.
1 upside of radiator is threadedly coupled close to the position of first end cover 2 there are two fluid coupling 7, and two fluids connect 7 difference
It is connected to first fluid channel 111 and second fluid channel 112, connecting, there are two passed through for fluid coupling 7 to lead on pedestal 6
Hole 63, external fluid pipe 71 are connect with fluid coupling 7.Two electric connectors 8 are further fixed on connection pedestal 6, pass through radiator 1
The inner lead of middle string holes（It is not shown in figure）Realize the electrical connection between UV-LED lamp bars 10 and electric connector 8, outer lead
81 are electrically connected with electric connector 8 and to system power supply and realize the transmission of electric signal.
Two longitudinal ends of radiator 1 pass through screw respectively（It is not shown in figure）It is fixed with and is used for seal light source accommodating chamber
101 sealing cover 12 and sealing cover 13 is equipped with the sealing ring around light source accommodating chamber 101 between sealing cover 12 and radiator 1
121, the sealing ring 131 around light source accommodating chamber 101 is equipped between sealing cover 13 and radiator 1,2 inside of first end cover is respectively formed
It is useful for accommodating the groove 25 of sealing cover 12,2 inside of first end cover is each formed with the groove 33 for accommodating sealing cover 12.In this way
If, though between radiator 1 and first end cover 2 and second end cover 3 there are in the case of cooling fluid is revealed if can prevent
The cooling fluid of stopping leak dew enters in light source accommodating chamber 101, and water resistance is good.
As shown in Fig. 5 and Fig. 7, the both lateral sides of 101 oral area of light source accommodating chamber have strip-shaped clamp groove 1015, light penetrating panel 4
Both lateral sides are plugged in strip-shaped clamp groove 1015, are additionally provided in strip-shaped clamp groove 1015 for sealed light-transmitting panel 4 and radiator 1
Between gap sealing strip 14.
There are four be arranged in parallel and longitudinal light source slot 1011 of arc-shaped distribution tool in light source accommodating chamber 101（That is light source slot
1011 being longitudinally extended along radiator 1）, one group of UV-LED being longitudinally extended along it is each provided in four longitudinal light source slots 1011
Lamp bar 10, the same arc-shaped distribution of four groups of UV-LED lamp bars 10.Every group of UV-LED lamp bar 10 is by the sub- lamp bars of multiple UV-LED along vertical
It is formed to combined and spliced, each sub- lamp bars of UV-LED are fixed by screws on radiator 1.As shown in fig. 6, adjacent longitudinal direction light
Partition wall 1012 between source slot 1011 has been respectively formed on multiple crossed beam trunkings 1013, and crossed beam trunking 1013 is formed in every group of UV-LED lamp
The mutual stitching portion of the sub- lamp bars of the adjacent UV-LED of any two in item 10, connecting wire between the corresponding sub- lamp bars of UV-LED via
1013 cabling of crossed beam trunking is arranged, and minimum and connecting wire to realize cable run distance do not interfere with UV lighting effects.
Referring again to Fig. 7, the oral area of four longitudinal light source slots 1011 is both provided with one group of bar shaped collector lens 11, every group of item
Shape collector lens 11 is formed by multiple sub- bar shaped collector lenses are combined and spliced along longitudinal direction.Specifically, as shown in Fig. 5 and Fig. 7, Zong Xiangguang
The both lateral sides of 1011 oral area of source slot have strip-shaped clamp groove 1014, and the both lateral sides of bar shaped collector lens 11, which have, is plugged on bar shaped
Lateral protrusions 110 in card slot 1014.As shown in figure 8, the illumination spot S of four groups of UV-LED lamp bars 10 is least partially overlapped and has
The UV intensities of illumination for having enhancing, the overall width W controls for being formed by illumination spot S are 1 millimeter to 10 millimeters, preferably 1 millimeter
To 5 millimeters.
In the present embodiment, the sub- lamp bars of UV-LED include the multiple UV-LED lamp beads of circuit board and setting on circuit boards, more
A UV-LED lamp beads are along the longitudinal direction of circuit board（That is the longitudinal direction of radiator 1）Linear array.Circuit board can be Metal Substrate printing electricity
Road plate（Typically comprise the circuit layer of insulating layer and setting on the insulating layer of metal substrate, setting on metallic substrates）Or
Ceramic circuit board（The circuit layer for typically comprising ceramic substrate and being formed on ceramic substrate）, between circuit board and radiator 1
With heat-conducting cream or heat conductive pad（It is not shown in figure）.Wherein, when circuit board selects metal base printed circuit board, UV-LED lamp beads
It is preferred that direct heat conduction is connect between the metal substrate of metal base printed circuit board（Such as UV-LED lamp beads are soldered directly to gold
Belong on substrate）, this can by formed on metallic substrates through insulating layer heat conduction protrusion and lamp bead is welded on the heat conduction
It is realized in protrusion, by being formed such that the through hole of metal substrate exposing in a insulating layer and lamp bead can also be welded on this
The exposed area of metal substrate and realize.
Embodiment 2
Embodiment 2 is differed only in embodiment 1：
The sub- lamp bars of UV-LED use the COB by the setting of UV- LED chips on circuit boards（It is encapsulated on plate）Packaged type,
The bar shaped encapsulation of multiple UV- LED chips and the multiple UV- LED chips of cladding including circuit board, setting on circuit boards is saturating
Mirror, multiple UV-LED chips are arranged along the vertical linear of circuit board.Circuit board can be metal base printed circuit board or ceramic electrical
The metal substrate in metal base printed circuit board is arranged in road plate, UV-LED chips（It is formed such that metal substrate reveals in a insulating layer
The through hole that goes out and by chip die bond the metal substrate exposed area）Or on the ceramic substrate of ceramic circuit board, the metal
The region that substrate or ceramic substrate are used to carry UV-LED chips has at least 85% to ultraviolet light, preferably 90% or more reflectivity
（Such as UV-LED chip bearings region in the circuit board forms aluminium film or silverskin）.
Although depicting the utility model above by preferred embodiment, but it is to be understood that, ordinary skill
Personnel are all according to being improved on an equal basis made by the utility model in the invention scope for not departing from the utility model, should be this practicality
Novel protection domain is covered.
Claims (10)
1. a kind of UV-LED curing light sources system, including the radiator that is longitudinally extended and it is respectively fixedly connected in the radiator
The first end cover and second end cover of two longitudinal ends, the downside of the radiator has to hold along the light source that it is entirely longitudinally extended
Receive chamber, the oral area of the light source accommodating chamber is provided with light penetrating panel；It is characterized in that：
Have in the light source accommodating chamber it is multiple be arranged in parallel and longitudinal light source slot of arc-shaped distribution, each longitudinal light source
A UV-LED lamp bar groups are both provided in slot, each UV-LED lamp bars group is spliced along longitudinal direction by the sub- lamp bars of multiple UV-LED
It is composed；Multiple arc-shaped distribution settings of the UV-LED lamp bars group, and its illumination spot is least partially overlapped；
The oral area of each longitudinal light source slot is both provided with a bar shaped collector lens group, and each bar shaped collector lens group is equal
It is spliced and combined along longitudinal direction by multiple sub- bar shaped collector lenses.
2. UV-LED curing light sources system as described in claim 1, it is characterised in that：Separation between adjacent longitudinal direction light source slot
Multiple crossed beam trunkings are provided on wall.
3. UV-LED curing light sources system as claimed in claim 2, it is characterised in that：The crossed beam trunking is formed in the UV-
The mutual stitching portion of the sub- lamp bars of the adjacent UV-LED of any two in LED light bar group.
4. UV-LED curing light sources system as described in claim 1, it is characterised in that：The sub- lamp bars of UV-LED include circuit
Plate and the multiple UV-LED lamp beads being welded on the circuit board, multiple UV-LED lamp beads are along the longitudinal direction of the circuit board
Arrangement.
5. UV-LED curing light sources system as claimed in claim 4, it is characterised in that：The circuit board is Metal Substrate printing electricity
Road plate, direct heat conduction connection between the UV-LED lamp beads and the metal substrate of the metal base printed circuit board.
6. UV-LED curing light sources system as described in claim 1, it is characterised in that：The sub- lamp bars of UV-LED include circuit
The bar shaped package lens of plate, the multiple UV-LED chips being encapsulated on the circuit board and the cladding UV-LED chips, institute
State longitudinal arrangement of multiple UV-LED chips along the circuit board.
7. UV-LED curing light sources system as claimed in claim 6, it is characterised in that：The circuit board is Metal Substrate printing electricity
Metal substrate or the ceramics in the metal base printed circuit board is arranged in road plate or ceramic circuit board, the UV-LED chips
On the ceramic substrate of circuit board, the metal substrate or the ceramic substrate are used to carry the region of the UV-LED chips to purple
Outer light has at least 85% reflectivity.
8. UV-LED curing light sources system as described in claim 1, it is characterised in that：The transverse direction of the longitudinal direction light source notch
Both sides have the first strip-shaped clamp groove, and the both lateral sides of the sub- bar shaped collector lens, which have, to be plugged in first strip-shaped clamp groove
Lateral protrusions.
9. UV-LED curing light sources system as described in claim 1, it is characterised in that：The longitudinal direction light source slot and the UV-
The quantity of LED light bar group is 3-8；Multiple UV-LED lamp bars groups be formed by illumination spot overall width be 1 millimeter extremely
10 millimeters.
10. UV-LED curing light sources system as described in claim 1, it is characterised in that：The cross of the light source accommodating chamber oral area
To both sides there is the second strip-shaped clamp groove, the both lateral sides of the light penetrating panel to be plugged in second strip-shaped clamp groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820671305.9U CN208090482U (en) | 2018-05-07 | 2018-05-07 | UV-LED curing light source systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820671305.9U CN208090482U (en) | 2018-05-07 | 2018-05-07 | UV-LED curing light source systems |
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| Publication Number | Publication Date |
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| CN208090482U true CN208090482U (en) | 2018-11-13 |
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|---|---|---|---|
| CN201820671305.9U Expired - Fee Related CN208090482U (en) | 2018-05-07 | 2018-05-07 | UV-LED curing light source systems |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109695826A (en) * | 2019-03-01 | 2019-04-30 | 力普士科技（珠海）有限公司 | Integral type UV-LED light source module group and preparation method thereof |
| CN109958905A (en) * | 2019-03-06 | 2019-07-02 | 广东欧曼科技股份有限公司 | a duct light |
| CN110332471A (en) * | 2019-08-08 | 2019-10-15 | 广东品美电子科技有限公司 | A kind of arc lamp with VCUT circuit board and its manufacturing process |
| CN110861398A (en) * | 2019-12-17 | 2020-03-06 | 陈诗剑 | UV-LED light source system |
| WO2020114438A1 (en) * | 2018-12-04 | 2020-06-11 | 欧普照明股份有限公司 | Cylindrical lamp |
| CN111451112A (en) * | 2020-05-26 | 2020-07-28 | 深圳市云硕灯业有限公司 | Focusing L ED photocuring lamp |
| CN112714533A (en) * | 2020-12-24 | 2021-04-27 | 深圳海川新材料科技股份有限公司 | UVLED area light source suitable for on photocuring glass fiber muscle production line |
| WO2022192718A1 (en) * | 2021-03-11 | 2022-09-15 | AMS Spectral UV | Interchangeable uv light system and docking port for uv light devices |
| TWI809174B (en) * | 2019-01-23 | 2023-07-21 | 日商東芝照明技術股份有限公司 | Ultraviolet irradiation unit and ultraviolet irradiation device |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US11293622B2 (en) | 2018-12-04 | 2022-04-05 | Opple Lighting Co., Ltd. | Cylindrical lighting fixture |
| WO2020114438A1 (en) * | 2018-12-04 | 2020-06-11 | 欧普照明股份有限公司 | Cylindrical lamp |
| TWI809174B (en) * | 2019-01-23 | 2023-07-21 | 日商東芝照明技術股份有限公司 | Ultraviolet irradiation unit and ultraviolet irradiation device |
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