CN203635457U - Light illumination device - Google Patents
Light illumination device Download PDFInfo
- Publication number
- CN203635457U CN203635457U CN201320588039.0U CN201320588039U CN203635457U CN 203635457 U CN203635457 U CN 203635457U CN 201320588039 U CN201320588039 U CN 201320588039U CN 203635457 U CN203635457 U CN 203635457U
- Authority
- CN
- China
- Prior art keywords
- light
- joint face
- optical element
- optical axis
- light source
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Led Device Packages (AREA)
Abstract
The utility model relates to a light illumination device which obtains flat light beam distribution by using an optical element module formed by connecting a plurality of optical elements in a direction. The light illumination device is provided with a plurality of light sources which are arranged on a configuration surface in parallel in the direction and have optical axes facing to a direction perpendicular to the configuration surface, and the optical element module formed by connecting the through type optical elements in the direction, wherein the optical element module is parallel to the configuration surface; each through type optical element is provided with an incident surface for the incidence of light from each light source, an emergent surface for the emergence of the light coming to the incident surface, and opposite connecting surfaces which are roughly parallel to the optical axis and are close to the adjacent through type optical elements in the direction; the optical axis of the at least one light source in the light sources passes through at least any one part of the connecting surfaces or a part between any one pair of the opposite connecting surfaces.
Description
Technical field
The utility model relates to a kind of light irradiation device, and it,, at the certain orientation multiple light sources of configuration side by side, is created in the light irradiation that certain orientation is expanded, had uniform illuminance.
Background technology
In the time that use ultraviolet ray (UV) constrictive type adhesives such as liquid crystal panel bonding process carry out large area stickup, use the irradiation unit of elongated generation wire light irradiation.A kind of irradiation unit is disclosed in patent documentation 1, it is arranged with the group of multiple line light pipes (line light guide) and cylindrical lens in the focal line direction of cylindrical lens, do not use thus the high strip lens of price, just can produce the UV light with long irradiation area.
While being known in the cylindrical lens of arranging multiple short strip shapes, because being formed on the impact in the gap between adjacent cylindrical lens end face, in the online direction of Illumination Distribution, produce uneven.This is because a part for the light (diverging light) sending from light source is caused by the end face of cylindrical lens (interface of lens substrate and air layer) reflection.Especially,, because the light that incides end face with the angle that is greater than critical angle (fresnel's law) is totally reflected, therefore near end face being disposed to chief ray time, the fluctuating of Illumination Distribution is remarkable.
In the irradiation unit of patent documentation 1, by grinding the end face of each cylindrical lens, this end face is docked each other, make the angular characteristics of the light quantity that each light source produces symmetrical with respect to the interface of end face, and so that light configures light source in the mode of the end face generation total reflection of cylindrical lens, thereby the impact of the seam of elimination cylindrical lens.
Prior art document
Patent documentation
The Japanese patent of invention of patent documentation 1 discloses 2001-174402 communique
Utility model content
According to the formation of the irradiation unit of patent documentation 1, must form end face with high angle precision and surface accuracy, and must use the special cylindrical lens after mirror ultrafinish, still there is the problem that lens cost is very high.
Provide a kind of light irradiation device according to the utility model embodiment, it has: in configuration plane, arrange along a direction, and the multiple light sources towards the equal edge direction vertical with configuration plane of optical axis; With the optical element module with the multiple infiltration type optical elements that are connected in a direction, optical element module and configuration plane be arranged in parallel, and infiltration type optical element has the plane of incidence from the light incident of light source; Be incident to the exit facet of the light outgoing of the plane of incidence; With with optical axis almost parallel, approach and opposed joint face in a direction and adjacent infiltration type optical element, in multiple light sources, the optical axis of at least one light source is by any at least a portion of joint face, or between opposed joint face any a pair of.
According to above-mentioned each structure, the light source light of passing through due to the boundary portion (by the part of adjacent and opposed a pair of joint face (end face) clamping) of optical axis adjacent infiltration type optical element from optical element module is reflected by the joint face of boundary portion hardly, therefore can suppress, because of the Illumination Distribution variation that reflection causes in boundary portion, to realize the beam distribution of good uniformity.Under ordinary meaning, under the situation that is difficult to clearly to determine light source optical axis, for example can be using the light by beam distribution center (being generally the part that luminous intensity is the highest) as optical axis.In addition, for the large light source of light-emitting area, can suppose the optical axis that cross section is identical with the light-emitting area of optical element, have width.Now, can make at least a portion of optical axis of width by boundary portion.So-called joint face " approach and opposed " comprises the state that joint face is adjacent to each other on full surface roughly, and joint face be the state of Entirely contactless each other, or the joint face state that part contacts each other.
Preferably in above-mentioned light irradiation device, the optical axis of any light source is configured in joint face opposed each between or be configured in this each at least a portion to joint face.
According to this structure, can suppress the reflection that joint face causes, multiple infiltration type optical elements are connected along a direction, in this direction, supply with the light irradiation of long and even intensity.
Preferably in above-mentioned light irradiation device, between multiple light sources and optical element module, be provided with on the optical axis that is configured in respectively multiple light sources and at least in a direction, thering are the lens of positive refractive index.
According to this structure, can prevent the joint face reflection of the optical element module boundary portion not passing through at the optical axis of this light source due to the light sending from light source, and cause Illumination Distribution inhomogeneous.
Preferably in above-mentioned light irradiation device, in a direction, adjacent a pair of infiltration type optical element is at the mutual butt of at least a portion of joint face.
Preferably, in above-mentioned light irradiation device, joint face is minute surface.
According to this structure, can reduce the scattered light being created on joint face, obtain the more uniform light irradiation of Illumination Distribution.
Preferably in above-mentioned light irradiation device, in a direction, adjacent a pair of infiltration type optical element is at the mutual butt of at least a portion of joint face.
Preferably in above-mentioned light irradiation device, there is the 1st and the 2nd optical element module as two optical element modules that are disposed at side by side on optical axis direction, in multiple light sources between any at least a portion by the 1st and the 2nd optical element module joint face separately of the optical axis of at least one light source or opposed joint face any a pair of.
According to this structure, because near light optical axis can not pass through the boundary portion of two optical element modules continuously, therefore, the Illumination Distribution of the generations such as the scattering occurring in the time of the boundary portion by optical element module changes can not accumulate, and can obtain smooth Illumination Distribution.
Preferably in above-mentioned light irradiation device, there is the 1st and the 2nd optical element module, it is as two optical element modules that are disposed at side by side on optical axis direction, in multiple light sources the optical axis of at least one light source by the 1st and any at least a portion of the joint face of any one party of the 2nd optical element module or opposed joint face any a pair of between.
Due to according to this structure, can reduce by the quantity of the optical axis of infiltration type optical element boundary portion, therefore can pass boundary portion by light, limit the region of Illumination Distribution change.
Preferably, in above-mentioned light irradiation device, joint face is the face vertical with a direction.
According to this structure, easily carry out the shaping of infiltration type optical element and each optics and aim at.
Preferably, in above-mentioned light irradiation device, joint face is the face tilting with respect to a direction
When use light irradiation device in batch production time, generally light irradiation device is configured in around the carrying devices such as conveyer, and to the shone thing light irradiation moving along carrying device.Now, in order to expand irradiation area, a direction is arranged to light irradiation device perpendicular to conveyance direction.In addition, because of the boundary portion place at optical element module, that the variation spatially of Illumination Distribution that scattering etc. causes occurs is roughly symmetrical with respect to joint face.Therefore, by making joint face (being the boundary portion of infiltration type optical element) with respect to a direction (in other words, with respect to the conveyance direction of shone thing) tilt, can in irradiation, make the variation spatially of the suffered Illumination Distribution of shone thing average, relax the impact on joint face.
Preferably, in above-mentioned light irradiation device, there are multiple the 1st light sources, and multiple the 2nd light source, its two groups of multiple light sources for arranging on the different straight lines in configuration plane, multiple the 1st light sources are arranged along the direction parallel with joint face with multiple the 2nd light sources.
According to this structure, can obtain flatness good and there is the irradiation unit of planar large irradiation area.
Preferably, in above-mentioned light irradiation device, infiltration type optical element comprises at least one in lens, luffer boards, wavelength filter, phase-plate and Polarizer., the utility model can be applicable to various infiltration type optical elements.
Preferably, in above-mentioned light irradiation device, infiltration type optical element is made up of optical resin material.
According to this structure, owing to needn't the joint face of infiltration type optical element being carried out to mirror ultrafinish, the infiltration type optical element of the system that therefore for example optical resin material outgoing can be shaped directly docks, and as optical element module, can significantly reduce the processing cost of optical element module.
Preferably, in above-mentioned light irradiation device, infiltration type optical element is the cylindrical lens having along the focal line of a direction, to produce the light irradiation of long wire in a direction.
According to said structure, the linear lighting injection device that Illumination Distribution flatness is good can be provided, and not use the strip infiltration type optical element of processing difficulties and high price.
Preferably, in above-mentioned light irradiation device, light source comprises LED element.
According to the utility model embodiment, there is the 1st and the 2nd irradiation module, the 1st irradiation module has: in the 1st configuration plane, arranges along a direction, and multiple the 1st light sources towards the equal edge direction vertical with the 1st configuration plane of optical axis; With there are multiple the 1st infiltration type optical elements that are connected in a direction, the 1st optical element module be arrangeding in parallel with the 1st configuration plane; The 1st infiltration type optical element has: from the 1st plane of incidence of the light incident of the 1st light source; Be incident to the 1st exit facet of the light outgoing of the 1st plane of incidence; With with the optical axis almost parallel of the 1st light source, approach and opposed the 1st joint face in a direction and adjacent the 1st infiltration type optical element; Between any at least a portion by the 1st joint face of the optical axis of at least one the 1st light source or opposed the 1st joint face any a pair of; The 2nd irradiation module has: in the 2nd configuration plane, arranges along a direction, and multiple the 2nd light sources towards the equal edge direction vertical with the 2nd configuration plane of optical axis; With the 2nd optical element module that there are multiple the 2nd infiltration type optical elements of being connected in a direction, be arranged in parallel with the 2nd configuration plane; The 2nd infiltration type optical element has: incident is from the 2nd plane of incidence of the light of the 2nd light source; Make the 2nd exit facet of the light outgoing that is incident to the 2nd plane of incidence; With with the optical axis almost parallel of the 2nd light source, in a direction, approach and opposed the 2nd joint face with the 2nd adjacent infiltration type optical element; Between any at least a portion by the 2nd joint face of the optical axis of at least one the 2nd light source or opposed the 2nd joint face any a pair of; The the 1st and the 2nd irradiation module is configured to fan-shaped centered by the irradiation area extending along a direction so that the 1st and the optical axis of the 2nd light source respectively by irradiation area, the 1st joint face and the 2nd joint face are formed in different planes.
According to this structure, overlap by the light that makes multiple irradiation modules, can be created in a direction and have and grow and the wide light irradiation that irradiation area, flatness are high, exposure intensity is large.Because the light of the boundary portion through the optical element module of each light irradiation unit does not overlap, therefore, the variation of the Illumination Distribution that the scattering occurring in the time of the boundary portion by optical element module causes can not strengthen mutually, can obtain smooth Illumination Distribution.
Preferably, in above-mentioned light irradiation device, the 1st and the 2nd infiltration type optical element is the cylindrical lens having along the focal line of a direction.Utilize the 1st and the 2nd infiltration type optical element of cylindrical lens, make the light sending from the 1st and the 2nd light source converge in respectively irradiation area.According to this structure, can produce the light irradiation that exposure intensity is large.
Preferably, in above-mentioned light irradiation device, also have the 3rd irradiation module, the 3rd irradiation module has: in the 3rd configuration plane, arrange along a direction, and multiple the 3rd light sources towards the equal edge direction vertical with the 3rd configuration plane of optical axis; With there are multiple the 3rd infiltration type optical elements that are connected in a direction, the 3rd optical element module be arrangeding in parallel with the 3rd configuration plane; The 3rd infiltration type optical element has: from incident the 3rd plane of incidence of the light of the 3rd light source; Be incident to the 3rd exit facet of the light outgoing of the 3rd plane of incidence; With with the optical axis almost parallel of the 3rd light source, in a direction, approach and opposed the 3rd joint face with the 3rd adjacent infiltration type optical element; Between any at least a portion by the 3rd joint face of the optical axis of at least one the 3rd light source or opposed the 3rd joint face any a pair of; The 3rd irradiation module and the 1st and the 2nd irradiation module together, are configured to fan-shapedly centered by irradiation area, and the optical axis that makes multiple the 3rd light sources is through irradiation area, and the 1st, the 2nd and the 3rd joint face is formed in mutually different planes.
According to this structure, can maintain smooth Illumination Distribution, and produce the light irradiation that exposure intensity is larger.
Preferably in above-mentioned light irradiation device, the 1st, the 2nd and the 3rd light irradiation unit around irradiation area with equal angles arranged spaced.According to this structure, can obtain more smooth Illumination Distribution.In addition, preferably in above-mentioned light irradiation device, multiple the 1st, the 2nd and the 3rd light-emitting components respectively in the 2nd direction uniformly-spaced to configure.According to this structure, can obtain more smooth Illumination Distribution.
As mentioned above, according to the utility model embodiment, even if use the optical element module being formed by the multiple infiltration type optical elements that connect in a direction, also can suppress, because of the light light irradiation intensity distribution change that reflection causes on the joint face of docking, to obtain uniform beam distribution.
Brief description of the drawings
Fig. 1 is the outside drawing of the UV irradiation unit 1 of the utility model embodiment.
Fig. 2 is the decomposed figure of the utility model embodiment UV irradiation unit 1.
Fig. 3 is the figure that represents the optical system of the UV irradiation unit 1 of the utility model the 1st embodiment.
Fig. 4 is the beam distribution of the emergent light of the UV irradiation unit 1 of the utility model embodiment.
Fig. 5 is the figure that represents the utility model the 2nd embodiment optical system.
Fig. 6 is the figure that represents the utility model the 3rd embodiment optical system.
Fig. 7 is the figure that represents the utility model the 4th embodiment optical system.
Fig. 8 is the figure that represents the utility model the 5th embodiment optical system.
Fig. 9 is the figure that represents the utility model the 6th embodiment optical system.
Figure 10 is the figure that represents the optical system of reference example.
Symbol description
1UV irradiation unit
100 main unit
101 housings
102 front panels
110LED element
200 lens units
201 housings
202 lens fixtures
210 spherical lenses
220 the 1st cylindrical lens modules
230 the 2nd cylindrical lens modules
240 luffer boards
J interface
T shone thing conveyance direction
Detailed description of the invention
(the 1st embodiment)
Below, by reference to the accompanying drawings the UV irradiation unit 1 of the utility model the 1st embodiment is described.UV irradiation unit 1 uses in the photo-hardening such as UV cured type adhesive is processed, for generation of the device of UV light irradiation with wire irradiation area.Fig. 1 is the outside drawing of UV irradiation unit 1.UV irradiation unit 1 has main unit 100 and lens unit 200.Fig. 2 represents, pulls down side plate 103 from UV irradiation unit 1, main unit 100 is separated with lens unit 200, and pull down luffer boards 240(glass plate from lens unit 200) state.Fig. 3 is the figure of the optical system (not comprising luffer boards 240) that represents UV irradiation unit 1.
Below, the structure of lens unit 200 is described.Lens unit 200 accurately keeps lens group with certain configuration relation, and this lens group is for making the UV light that LED element 110 sends form certain beam distribution.As shown in Figure 2, in the housing 201 of lens unit 200, contain the lens fixture 202 that keeps each lens.On lens fixture 202, maintain and the spherical lens 210 of LED element 110 equal numbers with high relative positional accuracy; Form a pair of the 1st cylindrical lens 220a, 220b(Fig. 3 of the 1st cylindrical lens module 220); With a pair of the 2nd cylindrical lens 230a, the 230b that form the 2nd cylindrical lens module 230.
In the time that lens unit 200 is installed on to main unit 100, makes 12 spherical lenses 210 and remain on lens fixture 202 to LED element 110 arranged opposite accordingly.By using spherical lens 210, reduce to disperse from the light of LED element 110 outgoing.Set the interval of LED element 110 and the curvature (being positive refracting power in Y direction) of spherical lens 210, the irradiation area marginal portion of the LED light sending from adjacent LED element 110 is overlapped each other, and the upper Illumination Distribution of Y direction (orientation of LED element 110) is roughly even.And, in the present embodiment, use spherical lens 210(to there are two curvature direction), make light converge (inhibition is dispersed) in Y-axis and this both direction of Z axis, but also can use the cylindrical lens that focal line is Z-direction, only make light converge in Y direction.
Utilize silicones ejection formation to form the 1st cylindrical lens 220a, 220b and the 2nd cylindrical lens 230a, 230b.By by a pair of the 1st cylindrical lens 220a, 220b(the 2nd cylindrical lens 230a, 230b) focal line direction on smooth end face remain on each other under docking (contact or approach) state, and form the 1st cylindrical lens module 220(the 2nd cylindrical lens module 230).Make a pair of the 1st cylindrical lens 220a, 220b(the 2nd cylindrical lens 230a, 230b) locate end face in boundary portion (docking section) and dock each other, and make roughly (, there is no jump or large gap on optical surface) continuously of each optical surface.For the 1st cylindrical lens module 220 and the 2nd cylindrical lens module 230, make respectively separately focal line in a row (that is, arranging in optical axis Pb direction) of Y direction configuration, UV light that LED element 110 sends is converged to Z-direction separately.And, in the present embodiment, be not to utilize adhesive etc. to the 1st adjacent cylindrical lens 220a, 220b(the 2nd cylindrical lens 230a, 230b) end face directly fixing each other, but make it be held in lens fixture 202 with the state just having docked.In another embodiment, for example, after also can directly fixing each other the end face of each lens with optics adhesive, utilize lens fixture 202 to be kept.In addition, also can fill the gap between end face with refractive index matched agent.In the present embodiment, for each lens of injection molding, do not grind its end face and directly use, but can before docking, in advance each lensed endface be ground to form to minute surface yet.And, in the present embodiment, for the end face that improves each cylindrical lens that will dock compactness each other, end face is applied to the pushing of regulation.In the present embodiment, because use has flexible silicones cylindrical lens processed, make lens fixture 202 grades lax even if be therefore for example subject to vibration, also can stable maintenance pushing.
(a) of Fig. 3 is for watching the plane of the optical system of the UV irradiation unit 1 of the J1 of boundary portion (being clipped in the part between adjacent cylindrical lens end face), the J2 vicinity of each cylindrical lens from Z-direction, Fig. 3 (b) is for to watch the side view of the optical system of UV irradiation unit 1 from Y direction.In the utility model embodiment, as shown in Fig. 3 (a), approach the optical axis Pb of LED element 110b of the J1 of boundary portion of the 1st cylindrical lens module 220 most by the J1 of boundary portion.In addition, optical axis Pb is also by the J2 of boundary portion of the 2nd cylindrical lens module 230.Therefore, the light of LED element 110b outgoing (comprising the secondary light not passing through along optical axis Pb) can be reflected at each boundary J1 of portion, J2 place hardly, can see through cylindrical lens with low loss.
(a) of Fig. 4 is the chart (the Illumination Distribution figure of illumination light in Y direction) that the structure that represents the utility model embodiment (close to the optical axis Pb of the J1 of boundary portion, J2 by the optical arrangement in the J1 of boundary portion, J2) tells on to the flatness aspect of light irradiation.Transverse axis represents the position of Y direction, taking the position of the demarcate J1 of portion, J2 as initial point.The longitudinal axis is the relative value of the upper exposure intensity of irradiation area (wherein Z=0).Illumination Distribution curve A s is the beam distribution of the optical system of present embodiment shown in Fig. 3.Illumination Distribution curve B s is the beam distribution of optical system shown in Figure 10 (comparative example).In the optical system of Figure 10, boundary portion J1, the J2 parallel with optical axis Pa, Pb is configured in the roughly mid portion of optical axis Pa, the Pb of adjacent two LED element 110a, 110b.
Now, optical axis Pa, Pb be by the J1 of boundary portion, J2, the marginal portion of secondary light Ps(LED light) be incident to the J1 of boundary portion, J2 and be reflected.
As shown in Fig. 4 (a), the Illumination Distribution curve B s of comparative example, at the J1 of boundary portion, J2(Y=0) near have two large b of paddy portion.Its reason is that the marginal portion (secondary light Ps) of the LED light sending from LED element 110a, 110b is reflected by the J1 of boundary portion, J2, transmitance decline.On the other hand, the Illumination Distribution curve A s of present embodiment has 1 a of paddy portion in the position of y=0, and the flatness of beam distribution is high compared with comparative example.And Illumination Distribution curve A s and Bs are the beam distribution making under situation that the end face of the each cylindrical lens that forms the J1 of boundary portion, J2 is scattering surface.The a of paddy portion of Illumination Distribution curve A s is because of optical axis Pb(Fig. 3) near light suffered strong scattering in the time propagating in the J1 of boundary portion, J2 cause.
Fig. 4 (b) represents the J1 of boundary portion, J2 to carry out the beam distribution under the situation of mirror ultrafinish.Illumination Distribution curve A m forms the J1 of boundary portion of the optical system in present embodiment shown in Fig. 3, the situation of J2 with minute surface, and Illumination Distribution curve B m forms with minute surface the situation that forms each cylindrical lens end face of the J1 of boundary portion, J2 shown in Figure 10 in comparative example.Illumination Distribution curve B m, with Illumination Distribution curve B s similarly, at the J1 of boundary portion, J2(Y=0) near have two large paddy portions.On the other hand, Illumination Distribution curve A m, with Illumination Distribution curve A s similarly, produce paddy portion at Y=0 place, but the size of paddy portion is very little.; in the optical system (Fig. 3) of present embodiment; on the Illumination Distribution curve of locating in the position of the J1 of boundary portion, J2 (Y=0), present the paddy portion because being caused by the J1 of boundary portion, J2 scattering, but can this paddy portion significantly be reduced by making the J1 of boundary portion, J2 be formed as minute surface.On the other hand, in the optical system (Figure 10) of comparative example, on Illumination Distribution curve, present two large paddy portions that cause because being reflected by the J1 of boundary portion, J2, but the roughness of the change J1 of boundary portion, J2 can not make it reduce.
In present embodiment (Fig. 3), from the light of the LED element 110c outgoing adjacent with LED element 110b, the secondary light Ps of train of dress shape Outboard Sections is incident to the J1 of boundary portion, J2 with the incidence angle θ i of not enough critical angle θ c.But the light quantity that is incident to the secondary light Ps of the J1 of boundary portion, J2 is trace, and reflectivity on the J1 of boundary portion, J2 is also low, therefore almost can ignore the impact that the reflection the J1 of boundary portion, J2 of light from LED element 110c outgoing produces.In addition, under the situation that is scattering surface at the end face of each cylindrical lens that forms the J1 of boundary portion, J2, the relative intensity of (a) two-story valley a of portion of Fig. 4, with at the J1 of boundary portion, J2 place, the light of LED element 110c is roughly the same with respect near the ratio of the power density optical axis Pb of LED element 110b in the power density of edge part office.The ratio that preferably makes this power density is more preferably less than 5% of not enough 10%(roughly).
(the 2nd embodiment)
The optical system of above-mentioned the 1st embodiment, its array disposes two-stage cylindrical lens, but also can only use 1 grade of cylindrical lens, or 3 grades of above cylindrical lenses of configuration in upright arrangement.The optical system of the 2nd embodiment of the utility model shown in Fig. 5 is the example that the utility model is applied to the optical system that only uses the 1st cylindrical lens module 220.Except not having the 2nd cylindrical lens module 230, the structure of the 2nd embodiment is identical with the structure of the 1st embodiment.With the 1st embodiment similarly, its optical arrangement is, makes optical axis P close to the J of boundary portion of the 1st cylindrical lens module 220 by the J of boundary portion, suppresses the reflection causing because of the J of boundary portion, therefore, similarly obtain with Illumination Distribution curve A s, the Am of Fig. 4 the beam distribution that flatness is high.Be 1 grade by making cylindrical lens, can reduce the quantity of the J of boundary portion that the flatness of beam distribution is impacted, obtain the higher beam distribution of flatness compared with the 1st embodiment.
(the 3rd embodiment)
Also the utility model can be applied to the formation that does not use spherical lens 210.The optical system of the 3rd embodiment of the utility model shown in Fig. 6 is the example that the utility model is applied to the optical system that does not use spherical lens 210.Except not having spherical lens 210, the structure of the 3rd embodiment is identical with the structure of the 2nd embodiment.With the 1st and the 2nd embodiment similarly, its optical arrangement is to make the optical axis P of the J of boundary portion that is bordering on the 1st cylindrical lens module 220 most cross the J of boundary portion, the reflection that inhibition causes because of the J of boundary portion, therefore, similarly obtain with Illumination Distribution curve A s, the Am of Fig. 4 the beam distribution that flatness is high.
(the 4th embodiment)
Above-mentioned the 1st～3rd embodiment, use the assembly in end docking by two cylindrical lenses, but also the utility model can be applied to, use for example, by the multiple infiltration type optical elements (, luffer boards, infiltration type wavelength filter, phase-plate, Polarizer etc.) beyond the lens formation at the assembly of end docking.The optical system of the 4th embodiment of the utility model shown in Fig. 7, is applied to the utility model the optical system that uses two luffer boards 240a, 240b that end face is docked each other.The optical system of the 4th embodiment comprises: the multiple LED elements 110 in Y direction uniformly-spaced to form a line, and a pair of luffer boards 240a, 240b that opposed end face is docked each other.Its optical arrangement is, make optical axis P close to the LED element 110b of the J of boundary portion of luffer boards 240a, 240b by the J of boundary portion, suppress the reflection causing because of the J of boundary portion, therefore, similarly can obtain with Illumination Distribution curve A s, the Am of Fig. 4 the beam distribution that flatness is high.
(the 5th embodiment)
Fig. 8 represents the optical system of the utility model the 5th embodiment.The 5th embodiment has, and is arranged in the plane multiple LED elements 110 of honeycomb lattice shape (the sub-shape of hexagonal mesh), and the end face of 5 glass plate 240a～240e is docked each other to the luffer boards 240 of formation.In above-mentioned the 4th embodiment (Fig. 7), in the time of configuration luffer boards 240, make the length direction of the J of boundary portion towards the Z-direction vertical with the orientation (Y direction) of LED element, and only make the optical axis P of 1 LED element 110b by the J of boundary portion, but in the present embodiment, the optical axis P of each LED element 110 is all by arbitrary boundary J of portion.
In above-mentioned the 4th embodiment, in the time of configuration luffer boards 240, make the length direction of the J of boundary portion towards the Z-direction vertical with the orientation of LED element 110, but in the present embodiment, in the time of configuration luffer boards 240, make the length direction of each boundary J of portion for example tilt roughly 30 ° with respect to Z axis.In general, there is the UV irradiation unit 1 of wire irradiation area in use, liquid crystal panel etc. is carried out to large area when bonding, use carrying device that machined object is slowly moved with respect to UV irradiation unit 1, and irradiate.Under the situation of present embodiment, suppose to move machined object and carry out UV irradiation to the direction of the T of arrow shown in Fig. 8.As known in the Illumination Distribution curve of Fig. 4, there is in the direction vertical with the J of boundary portion (X direction of chart in Fig. 4) variation spatially of illumination producing because of the J of boundary portion scattering.Therefore,, when move up machined object while irradiating in the side parallel with the J of boundary portion, the exposure that the Illumination Distribution of light irradiation is directly transferred as machined object distributes, and causes bonding inhomogeneous.As shown in Figure 8, by making machined object move on incline direction T and irradiate with respect to the J of boundary portion, can make the exposure of machined object distribute average (alleviating the impact of the paddy portion in Illumination Distribution), can carry out equably bonding.
(the 6th embodiment)
Fig. 9 represents the optical system of the utility model the 6th embodiment.The optical system of the 6th embodiment comprises 3 optical units 10,10 ', 10 ".Optical unit 10(10 ', 10 ") comprising: 5 the LED element 110(110 ', 110 that form a line in Y direction "); With corresponding LED element 110(110 ', 110 ") 5 spherical lens 210(210 ', 210 of exit facet arranged opposite "); With cylindrical lens module 220(220 ', 220 ").Utilize lens fixture (not shown) to make cylindrical lens module 220(220 ', 220 ") remain on make two cylindrical lens 220a(220a ', 220a ") and 220b(220b ', 220b ") adjacent face mated condition each other. Optical unit 10,10 ', 10 " produce respectively the wire UV light of roughly the same Illumination Distribution.
Each optical unit 10,10 ', 10 " centered by irradiation area R, be configured to fan-shapedly with predetermined angular interval θ, and the wire irradiation area R that extends in Y direction is overlapped.
The cylindrical lens module 220 of optical unit 10 is to make two cylindrical lens 220a of equal length and the end face of 220b dock and form each other.In 5 LED elements 110 arranging along Y direction, the optical axis Pb that is configured in 1 LED element 110b of central authorities passes through the J of boundary portion of cylindrical lens module 220.
The cylindrical lens module 220 ' of optical unit 10 ' is that the end face of different length two cylindrical lens 220a ' and 220b ' is docked and formed each other.Compared with the cylindrical lens 220b ' on right side in (b) of Fig. 9, the cylindrical lens 220a ' in left side is longer, and the J ' of boundary portion is positioned at the Y direction central authorities side to the right of cylindrical lens module 220 '.In 5 LED elements 110 ' arranging along Y direction, with the optical axis Pc ' of the LED element 110c ' of central authorities' one adjacent (in Fig. 9 (b), right side is adjacent) by the J ' of boundary portion of cylindrical lens module 220 '.
From each optical unit 10,10 ', 10 " Illumination Distribution of light of transmitting is roughly the same, but due to docking section J, J '; J " position difference, because of docking section J, J '; J " scattering and the position of the paddy portion that produces in beam distribution, because of optical unit 10,10 ', 10 " different.Make each optical unit 10,10 ', 10 " docking section J, J ', J " position in Y direction is when identical, at each optical unit 10,10 ', 10 " beam distribution in the position of the paddy portion that produces identical.Therefore, making 3 optical units 10,10 ', 10 " light while overlapping, the intensity variation of paddy portion can be exaggerated, and the flatness of the beam distribution after synthetic is declined.And as present embodiment, by the each optical unit 10,10 ', 10 of mutual change " the position of docking section, can be suppressed at each optical unit 10,10 ', 10 " light while synthesizing paddy portion be exaggerated.
Be more than the explanation to the utility model embodiment example, but the utility model is not limited to the structure of above-mentioned embodiment, can in the scope of the described technological thought of claims, does various distortion.
For example, above-mentioned embodiment is that the utility model is applied to the example of device that produces ultraviolet light irradiation, but also the utility model can be applied to the irradiation unit that produces its all band light irradiation visible ray, infrared rays etc. such as () such as white lights.
In addition, in above-mentioned the 1st embodiment, the optical axis Pb of LED element 110b, by the J1 of boundary portion of the 1st cylindrical lens module 220 and J2 two sides of boundary portion of the 2nd cylindrical lens module 230, also can make optical axis Pb only by the side in the J1 of boundary portion, J2.In the 1st embodiment, be the example that disposes 2 grades of cylindrical lenses (infiltration type optical element) on optical axis, also can configure 3 grades of infiltration type optical elements above with the J of boundary portion.Can make the optical axis of at least one light-emitting component by each boundary J of portion.In the time thering is multiple light-emitting component, needn't make the optical axis of light-emitting component all by arbitrary boundary J of portion.
In the respective embodiments described above, use the cylindrical lens of silicones ejection formation system, but the material of permeability optical element and formation method are not limited to this.For example, except using taking borosilicate crown glass (borosilicate crown glass) and synthetic quartz glass, ultra-clear glasses as the various optical glass materials of representative, also can use the permeability optical element being formed by optical resins such as Merlon, polymethyl methacrylate, cyclic polyolefin, polyester.
Claims (16)
1. a light irradiation device, is characterized in that, has:
In configuration plane, arrange along a direction, and the multiple light sources towards the equal edge direction vertical with described configuration plane of optical axis; With
There is the optical element module of the multiple infiltration type optical elements that upwards connect in one,
Described optical element module and described configuration plane be arranged in parallel,
Described infiltration type optical element has:
From the plane of incidence of the light incident of described light source;
Be incident to the exit facet of the light outgoing of the described plane of incidence; With
With described optical axis almost parallel, in one to approaching and opposed joint face with adjacent described infiltration type optical element,
In described multiple light source, the optical axis of at least one light source is by any at least a portion of described joint face, or between described opposed joint face any a pair of.
2. light irradiation device as claimed in claim 1, is characterized in that:
The optical axis of any described light source is configured in described joint face opposed each between, or be configured in this each at least a portion to joint face.
3. light irradiation device as claimed in claim 1 or 2, is characterized in that:
Between described multiple light sources and described optical element module, be provided with on the optical axis that is configured in respectively described multiple light sources and at least upwards there are the lens of positive refractive index in one.
4. light irradiation device as described in any one in claim 1, is characterized in that:
One upwards adjacent a pair of described infiltration type optical element at the mutual butt of at least a portion of described joint face.
5. light irradiation device as described in any one in claim 1, is characterized in that:
Described joint face is minute surface.
6. light irradiation device as described in any one in claim 1, is characterized in that:
Have the 1st and the 2nd optical element module, it is to be disposed at side by side two described optical element modules on described optical axis direction,
In described multiple light source between any at least a portion by the described the 1st and the 2nd optical element module described joint face separately of the optical axis of at least one light source or described opposed joint face any a pair of.
7. light irradiation device as described in any one in claim 1, is characterized in that:
Have the 1st and the 2nd optical element module, it is to be disposed at side by side two described optical element modules on described optical axis direction,
In described multiple light source the optical axis of at least one light source by the described the 1st and any at least a portion of the described joint face of any one party of the 2nd optical element module or described opposed joint face any a pair of between.
8. light irradiation device as described in any one in claim 1, is characterized in that:
Described joint face is to vertical face with one.
9. light irradiation device as described in any one in claim 1, is characterized in that:
Described joint face is to the face tilting with respect to one.
10. light irradiation device as described in any one in claim 1, is characterized in that:
There are multiple the 1st light sources, and multiple the 2nd light source, it is multiple light sources described in two groups that arrange on the different straight lines in described configuration plane,
Described multiple the 1st light source is arranged along the direction parallel with described joint face with described multiple the 2nd light sources.
11. as described in any one in claim 1 light irradiation device, it is characterized in that:
Described infiltration type optical element comprises at least one in lens, luffer boards, wavelength filter, phase-plate and Polarizer.
12. as described in any one in claim 1 light irradiation device, it is characterized in that:
Described infiltration type optical element is made up of optical resin material.
13. as described in any one in claim 1 light irradiation device, it is characterized in that:
Described infiltration type optical element be have along one to the cylindrical lens of focal line, upwards produce the light irradiation of long wire in one.
14. as described in any one in claim 1 light irradiation device, it is characterized in that:
Described light source comprises LED element.
15. 1 kinds of light irradiation devices, is characterized in that:
There is the 1st and the 2nd irradiation module,
Described the 1st irradiation module has:
In the 1st configuration plane, arrange along a direction, and multiple the 1st light sources towards the equal edge direction vertical with described the 1st configuration plane of optical axis; With
The 1st optical element module that there are multiple the 1st infiltration type optical elements of upwards connecting in one, be arranged in parallel with described the 1st configuration plane,
Described the 1st infiltration type optical element has:
From the 1st plane of incidence of the light incident of described the 1st light source;
Be incident to the 1st exit facet of the light outgoing of described the 1st plane of incidence; With
With the optical axis almost parallel of described the 1st light source, in one to approaching and opposed the 1st joint face with adjacent described the 1st infiltration type optical element,
Described at least one between any at least a portion by described the 1st joint face of the optical axis of the 1st light source or described opposed the 1st joint face any a pair of,
Described the 2nd irradiation module has:
In the 2nd configuration plane along one to arrangement, and optical axis towards all along vertical multiple the 2nd light sources of described the 2nd configuration plane; With
Have in one to multiple the 2nd infiltration type optical elements that connect, the 2nd optical element module that be arranged in parallel with described the 2nd configuration plane,
Described the 2nd infiltration type optical element has:
From the 2nd plane of incidence of the light incident of described the 2nd light source;
Be incident to the 2nd exit facet of the light outgoing of described the 2nd plane of incidence; With
With the optical axis almost parallel of described the 2nd light source, in one to approaching and opposed the 2nd joint face with adjacent described the 2nd infiltration type optical element,
Described at least one between any at least a portion by described the 2nd joint face of the optical axis of the 2nd light source or described opposed the 2nd joint face any a pair of,
The described the 1st and described the 2nd irradiation module be configured to centered by along one to the irradiation area extending fan-shaped so that the described the 1st and the optical axis of described the 2nd light source respectively by described irradiation area,
Described the 1st joint face and described the 2nd joint face are formed in different planes.
16. light irradiation devices as claimed in claim 15, is characterized in that:
Also there is the 3rd irradiation module,
Described the 3rd irradiation module has:
In the 3rd configuration plane along one to arrangement, and multiple the 3rd light sources towards the equal edge direction vertical with described the 3rd configuration plane of optical axis; With
The 3rd optical element module that there are multiple the 3rd infiltration type optical elements of upwards connecting in one, be arranged in parallel with described the 3rd configuration plane,
Described the 3rd infiltration type optical element has:
From the 3rd plane of incidence of the light incident of described the 3rd light source;
Be incident to the 3rd exit facet of the light outgoing of described the 3rd plane of incidence; With
With the optical axis almost parallel of described the 3rd light source, upwards approach and opposed the 3rd joint face with adjacent described the 3rd infiltration type optical element in one,
Described at least one between any at least a portion by described the 3rd joint face of the optical axis of the 3rd light source or described opposed the 3rd joint face any a pair of,
Described the 3rd irradiation module and the described the 1st and described the 2nd irradiation module together, centered by described irradiation area, be configured to fan-shaped so that the optical axis of described multiple the 3rd light sources is by described irradiation area,
The described the 1st, the described the 2nd and described the 3rd joint face be formed in mutually different planes.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012223545A JP5693541B2 (en) | 2012-10-05 | 2012-10-05 | Light irradiation device |
| JP2012-223545 | 2012-10-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203635457U true CN203635457U (en) | 2014-06-11 |
Family
ID=50749329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320588039.0U Expired - Fee Related CN203635457U (en) | 2012-10-05 | 2013-09-23 | Light illumination device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5693541B2 (en) |
| CN (1) | CN203635457U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105817381A (en) * | 2016-05-26 | 2016-08-03 | 武夷学院 | UV paint electrostatic spraying and LED UV curing system and work method |
| CN106996534A (en) * | 2015-12-15 | 2017-08-01 | Lg伊诺特有限公司 | Luminaire and the lighting apparatus for the vehicle including the luminaire |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6302242B2 (en) * | 2013-12-25 | 2018-03-28 | 株式会社アイテックシステム | Lighting device |
| JP6465828B2 (en) | 2016-03-30 | 2019-02-06 | Ｈｏｙａ Ｃａｎｄｅｏ Ｏｐｔｒｏｎｉｃｓ株式会社 | Light irradiation device |
| JP6660317B2 (en) | 2017-01-31 | 2020-03-11 | Ｈｏｙａ Ｃａｎｄｅｏ Ｏｐｔｒｏｎｉｃｓ株式会社 | Light irradiation device |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59143145A (en) * | 1983-02-07 | 1984-08-16 | Matsushita Electric Ind Co Ltd | Illuminating device |
| JPS607425A (en) * | 1983-06-27 | 1985-01-16 | Canon Inc | Light emitting element |
| JPH0949970A (en) * | 1995-08-08 | 1997-02-18 | Stanley Electric Co Ltd | Projector for optical communication |
| JP3539324B2 (en) * | 1999-12-21 | 2004-07-07 | Ｊｆｅスチール株式会社 | Lighting equipment |
| AU2001264305A1 (en) * | 2000-06-19 | 2002-01-02 | Ccs Inc. | Illumination device for inspection |
| JP2009043566A (en) * | 2007-08-08 | 2009-02-26 | Yoshikawa Kasei Kk | Lens unit for led illumination device, illumination device, and furniture |
| JP5447763B2 (en) * | 2008-03-27 | 2014-03-19 | スタンレー電気株式会社 | Vehicle headlamp |
| US7959282B2 (en) * | 2007-12-20 | 2011-06-14 | Summit Business Products, Inc. | Concentrated energy source |
| JP2011060798A (en) * | 2009-09-07 | 2011-03-24 | Nakakyu:Kk | Ultraviolet irradiation device |
| JP5981855B2 (en) * | 2010-03-05 | 2016-08-31 | テラダイオード， インコーポレーテッド | Wavelength beam combining system and method |
| WO2011109763A2 (en) * | 2010-03-05 | 2011-09-09 | TeraDiode, Inc. | Selective repositioning and rotation wavelength beam combining system and method |
-
2012
- 2012-10-05 JP JP2012223545A patent/JP5693541B2/en active Active
-
2013
- 2013-09-23 CN CN201320588039.0U patent/CN203635457U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106996534A (en) * | 2015-12-15 | 2017-08-01 | Lg伊诺特有限公司 | Luminaire and the lighting apparatus for the vehicle including the luminaire |
| CN106996534B (en) * | 2015-12-15 | 2021-01-08 | Lg伊诺特有限公司 | Light emitting apparatus and lighting apparatus for vehicle including the same |
| CN105817381A (en) * | 2016-05-26 | 2016-08-03 | 武夷学院 | UV paint electrostatic spraying and LED UV curing system and work method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2014075323A (en) | 2014-04-24 |
| JP5693541B2 (en) | 2015-04-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203635457U (en) | Light illumination device | |
| CN106291896B (en) | Optical lens and backlight module | |
| US8899815B2 (en) | Uniform reflective light-guide apparatus with micro-structure, and backlight module and LCD device having the same | |
| US6416237B2 (en) | Microsystem module | |
| KR102482891B1 (en) | Complex optical sheet, liquid crystal display using the same and method of manufacturing the same | |
| US20130141935A1 (en) | Light guide plate and backlight module | |
| CN101057168A (en) | Optical film having a structured surface with rectangular based prisms | |
| CN202676987U (en) | Polarization optical splitter and projecting apparatus | |
| TWI704401B (en) | Backlight module | |
| US10746915B2 (en) | Light guide plate, backlight module and display device | |
| US20180284367A1 (en) | Optical path conversion device, optical interface apparatus, and optical transmission system | |
| CN103913796A (en) | Light guide plate, backlight module and transparent displayer | |
| KR100733110B1 (en) | Illumination system having edge-illuminated waveguide and separate components for extracting and directing light | |
| CN101191850A (en) | Optical plate | |
| CN101393281B (en) | Back light module unit and prismatic lens thereof | |
| CN103925522A (en) | Backlight module and display device | |
| US9864178B2 (en) | Reflection imaging device and method of producing reflection imaging device | |
| CN101191851A (en) | Optical plate | |
| CN111221062B (en) | Display device | |
| KR101402814B1 (en) | Lamp device within resin layer for light-guide and LCD using the same | |
| US20110007512A1 (en) | Directional Light Source Using Refractive and Reflective Optics | |
| KR102477136B1 (en) | Optical lenses, backlight modules and display devices | |
| CN104655109A (en) | Laser demarcation tetragonal pyramid-shaped optical component | |
| US9229184B2 (en) | Lens module | |
| US20150268390A1 (en) | Optical film having microstructure layer on both sides |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 |