CN103363442A - Lens unit, light irradiation unit, and light irradiation apparatus - Google Patents
Lens unit, light irradiation unit, and light irradiation apparatus Download PDFInfo
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- CN103363442A CN103363442A CN2013101094266A CN201310109426A CN103363442A CN 103363442 A CN103363442 A CN 103363442A CN 2013101094266 A CN2013101094266 A CN 2013101094266A CN 201310109426 A CN201310109426 A CN 201310109426A CN 103363442 A CN103363442 A CN 103363442A
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- 230000003287 optical effect Effects 0.000 claims abstract description 32
- 238000009826 distribution Methods 0.000 claims abstract description 8
- 238000005286 illumination Methods 0.000 claims description 13
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 230000001678 irradiating effect Effects 0.000 abstract 1
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 14
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
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- 239000000835 fiber Substances 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- VSQYNPJPULBZKU-UHFFFAOYSA-N mercury xenon Chemical compound [Xe].[Hg] VSQYNPJPULBZKU-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910001507 metal halide Inorganic materials 0.000 description 1
- 150000005309 metal halides Chemical class 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
- G02B13/003—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having two lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/14—Optical objectives specially designed for the purposes specified below for use with infrared or ultraviolet radiation
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
- G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0927—Systems for changing the beam intensity distribution, e.g. Gaussian to top-hat
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
- G03B17/04—Bodies collapsible, foldable or extensible, e.g. book type
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Lens Barrels (AREA)
- Lenses (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
Abstract
The invention provides a lens unit, a light irradiation unit, and a light irradiation apparatus which are easy to assemble and set and are used to emit irradiating light with linear illuminance distribution. The lens unit is characterized by comprising a first lens, a second lens, and a lens cone. The first lens and the second lens are cylindrical lenses respectively forming convex lens surfaces on a first surface. The lens cone makes the first lens and the second lens disposed opposite to each other and the convex lens surfaces are separated by a specified distance, and the first lens and the second lens are maintained in a manner that each optical axis is consistent. The lens cone is provided with an intermediate lens cone portion, and the intermediate lens cone portion is configured between the first lens and the second lens, and is abutted against the convex lens surface of each lens, so that each lens is positioned. The first lens and the second lens are configured to have refracting power on the first direction vertical to the axis, and do not have the refracting power on a second direction which is vertical to the axis and the first direction. On the periphery of the intermediate lens cone portion, an identification is formed on at least a position of a straight line which passes through the axis and extends along the first direction or the second direction.
Description
Technical field
The present invention relates to will irradiation light the Illumination Distribution light irradiation unit and the light irradiation device that are configured as elongated linear lens unit and possess this lens unit.
Background technology
As the coating of the industrial product assembling binding agent with binding agent, optics etc., the use ultraviolet curing resin.Ultraviolet curing resin is to have that mobile single matrix, oligomer absorb that photopolymerization reaction occurs in ultraviolet ray (ultraviolet light) and the resin that is changed to solid polymer.And as the light source that is used for this ultraviolet curing resin is solidified, exploitation has ultraviolet lamp (hereinafter referred to as " UV irradiation unit ".）。
As the UV irradiation unit, the known lamp type irradiation unit that has take high-pressure mercury-vapor lamp, mercury xenon lamp etc. as light source, but in recent years, because the requirement of the reduction of power consumption, the miniaturization of plant bulk, thereby exploitation has the UV irradiation unit (for example, patent documentation 1) take the light emitting diode (LED) that can send ultraviolet light as light source.
Patent documentation 1: TOHKEMY 2007-27295 communique
In addition, by spherical lens being replaced to cylindrical lens (cylindrical lens), can obtain width of light beam at the long linear irradiation light of the focal line direction of cylindrical lens, but be uniform irradiation light in order to obtain online direction (the major diameter direction of light beam) intensity (illumination), thereby need to be with high precision at two cylindrical lenses of focal line direction alignment.In the past, adjusting cylindrical lens in the focal line direction was that optical orientation device by complexity carries out, and therefore replaced to cylindrical lens from spherical lens, can increase considerably manufacturing cost.
In addition, in the situation that the irradiation head of arranging the linear irradiation light of a plurality of outputs uses, need to make exactly the major diameter direction of irradiation light consistent with the direction of arranging irradiation head, but because ultraviolet light is invisible, so for example have to while make irradiation irradiation fluorescent plate adjust irradiation head towards, thereby need loaded down with trivial details adjustment operation.
Summary of the invention
The present invention In view of the foregoing proposes, and purpose is to provide the lens unit, light irradiation unit and the light irradiation device that are used for penetrating the irradiation light with linear uniform Illumination Distribution of easy assembling and setting.
To achieve these goals, the lens unit of embodiments of the present invention is characterised in that to possess: first lens and the second lens, and they are respectively the cylindrical lenses that is formed with convex lens at first surface; And lens barrel, it keeps first lens and the second lens are opposed with the distance of the spaced regulation of convex lens and each optical axis is consistent mode, lens barrel possesses middle lens barrel section, this centre lens barrel section is disposed between first lens and the second lens, by locating each lens with the convex lens butt of each lens, first lens and the second lens are set to: have refracting power at the first direction vertical with optical axis, and do not have refracting power in the second direction vertical with optical axis and first direction, at the outer peripheral face of middle lens barrel section, pass optical axis and be formed with sign along at least one place on the straight line of first direction or second direction extension.
According to said structure, by the sign of the outer peripheral face of lens barrel section in the middle of being located at, can identify exactly the optically focused direction of lens unit, thus can be accurately and the location when easily lens unit being set.In addition, according to said structure, light beam not by optically focused in second direction (major diameter direction), the width of light beam ground that therefore can not shorten second direction improves the ejaculation light intensity.In addition, according to said structure, when assembling can be accurately and the focal line of two cylindrical lenses that easily align towards.
The lens unit of embodiments of the present invention also can constitute, centre lens barrel section has protuberance, this protuberance is outstanding towards central shaft from the inner peripheral surface of middle lens barrel section, protuberance, pass optical axis and the straight line that extends along second direction on, be provided with pair of notches section across optical axis, the leading section of the convex lens of first lens and the second lens embeds respectively pair of notches section, and first lens and the second lens are positioned respectively with respect to first direction and second direction thus.
According to this structure, by only the convex lens of each lens rotate such shirtsleeve operation around central shaft on one side by the protuberance that is pressed in intermediate mirror cylinder section on one side, with the leading section embedding notch of convex lens, thereby can locate accurately the direction of each lens.
The lens unit of embodiments of the present invention also can constitute, first lens and the second lens have respectively columniform side, centre lens barrel section is the approximate circle tubular with internal diameter inner peripheral surface slightly larger than the external diameter of first lens and the second lens, at least a portion of the convex lens side of first lens and the second lens is contained in respectively in the hollow bulb of this centre lens barrel section, and protuberance forms the approximate circle annular with internal diameter less than the external diameter of first lens and the second lens.
In addition, the lens unit of embodiments of the present invention also can constitute, the both sides across optical axis inner peripheral surface, second direction in middle lens barrel section, be formed with a pair of groove, this a pair of groove extends from an end crosscut protuberance of optical axis direction and along optical axis direction, by forming this a pair of groove, at protuberance pair of notches section is set.
According to said structure, can easily form notch.
In addition, the lens unit of embodiments of the present invention also can constitute, and sign is the axially extended sign groove along middle lens barrel section.
According to said structure, for example use the middle lens barrel of Cutter Body Processing with Machining Center section, can form notch and sign with high relative positional accuracy thus, and realize visual good sign.
In addition, the lens unit of embodiments of the present invention also can constitute, and the external diameter of the first cylindrical lens and the second cylindrical lens is identical.
According to said structure, can reduce the kind of parts, and lens barrel section in the middle of can processing with few operation, therefore can be with the low cost fabrication lens unit.
The light irradiation unit of embodiments of the present invention possesses light source cell and the said lens unit of light beam optically focused on first direction that light source cell is penetrated, generates the irradiation light that has at the long linear irradiation area of second direction.
In addition, the light irradiation unit of embodiments of the present invention also can constitute, and light source cell possesses a plurality of LED elements of two-dimensional arrangements.In addition, the light irradiation unit of embodiments of the present invention also can constitute, and light source cell possesses the light-emitting area of rectangular shape, and this light-emitting area has two limits parallel with first direction and second direction difference.
According to said structure, even irradiation light is because cylindrical lens and optically focused in one direction only also can obtain the sufficiently high irradiation light of intensity.
The light irradiation device of embodiments of the present invention is characterised in that, possess a plurality of above-mentioned light irradiation units, a plurality of light irradiation units are parallel to each other described optical axis and arrange with predetermined distance along second direction, and predetermined distance is: the length identical with a half value of the overall width of irradiation area on second direction of the irradiation light of light irradiation unit.
According to said structure, can realize the light source of and even intensity long at the irradiation area of second direction.
As mentioned above, structure according to the embodiment of the present invention realizes that easily assembling and the Illumination Distribution that will shine light that arranges are configured as elongated linear irradiation head and the light irradiation device that possesses this irradiation head.
Description of drawings
Fig. 1 is the outside drawing of the UV irradiation unit 1 of embodiments of the present invention.
Fig. 2 is the exploded view of brief configuration of lens unit 120 of the UV irradiation unit 1 of expression embodiments of the present invention.
Fig. 3 is the front view from the exiting side observation of centre lens barrel section 30.
Fig. 4 is the side view of centre lens barrel section 30.
Fig. 5 is the rearview from the light incident side observation of centre lens barrel section 30.
Fig. 6 is the longitudinal section of centre lens barrel section 30.
Fig. 7 is centre lens barrel section 30, makes focal line F first lens 20 and the second lens 40 be inserted the longitudinal section of the state of hollow bulbs towards Z-direction.
Fig. 8 be in the middle of lens barrel section 30, correctly the longitudinal section of the state of first lens 20 and the second lens 40 has been installed.
Fig. 9 is the outside drawing of irradiation module 300.
Figure 10 is the figure of Illumination Distribution of the irradiation area of explanation irradiation module 300.
Figure 11 be in the middle of lens barrel section 30, changed the longitudinal section of various variation of the kind of cylindrical lens.
Description of reference numerals:
1 ... the UV irradiation unit; 10 ... light incident side lens barrel section; 20 ... first lens; 30 ... centre lens barrel section; 32 ... protuberance; 34 ... groove; 36 ... the sign groove; 40 ... the second lens; 50 ... exiting side lens barrel section; 100 ... main unit; 120 ... lens unit; 121 ... lens barrel; 140 ... light source cell; 141 ... sleeve pipe; 142 ... the LED element; 160 ... cable; 200 ... power subsystem; 300 ... connecting block; 310 ... through hole; 330 ... the sign groove; 1000 ... irradiation module; F
20, F
40Focal line; Rn ... internal diameter (protuberance); Rw ... internal diameter (notch).
The specific embodiment
Below, with reference to accompanying drawing the related UV irradiation unit 1 of embodiments of the present invention is described.Fig. 1 is the outside drawing of UV irradiation unit 1, and Fig. 2 is the exploded view of UV irradiation unit 1.In addition, in the following description, the optical axis direction of lens unit 120 described later is called X-direction, the direction of the focal line F of plano-convex cylindrical lens described later (first lens 20, the second lens 40) is called Y direction, the optically focused direction of plano-convex cylindrical lens is called Z-direction.In addition, the plano-convex cylindrical lens does not have refracting power in the direction (Y direction) of focal line F, and has refracting power in the direction vertical with focal line F (Z-direction).
The UV irradiation unit 1 of present embodiment possesses the power subsystem 200 of box-shaped and the elongated main unit 100 of extending from the front of power subsystem 200.In addition, main unit 100 possesses lens unit 120, light source cell 140 and cable section 160.Cable 160 is that the power line, the transmission that utilize the metal flexible conduit covering protection to be used for light source cell 140 power supplies form for the holding wire of the signal of the action of control light source cell 140, is used for connecting power subsystem 200 and main unit 100.Light source cell 140 has the sleeve pipe 141 of approximate cylinder shape, and at one end disposes LED element 142.Contain the drive circuit (not shown) for driving LED element 142 in the sleeve pipe 141 of light source cell 140, the other end of light source cell 140 is connected with power subsystem 200 via cable 160.In addition, the end at light source cell 140 is equipped with lens unit 120.
Next the structure of middle lens barrel section 30 described.Fig. 3～Fig. 5 is front view, side view and the rearview of centre lens barrel section 30 successively.In addition, Fig. 6 is the longitudinal section of centre lens barrel section 30.Middle lens barrel section 30 is parts of approximate cylinder shape, but the X-direction central portion of side face is formed with the protuberance 32 of outstanding to the inside sub-circular within it.As shown in Figure 2, as the first lens 20 of a pair of plano-convex cylindrical lens and the second lens 40 respectively with convex surface (convex lens) towards 30 configurations of middle lens barrel section, in the middle of the part of convex side is contained in the hollow bulb of lens barrel section 30.Fig. 7 and Fig. 8 are the figure of the state in the hollow bulb of lens barrel section 30 in the middle of the part of the convex side of expression first lens 20 and the second lens 40 is inserted.Particularly, Fig. 7 represents to make the focal line F of first lens 20
20And the focal line F of the second lens 40
40Towards the state of Z-direction with the middle lens barrel of each lens insertion section 30, Fig. 8 represents to make focal line F respectively
20And focal line F
40Respectively towards the state of Y direction with the middle lens barrel of each lens insertion section 30.Configuration shown in Figure 8 is the configuration of light source cell 140 when finishing.
(position shown in the arrow Rw among Fig. 3) is formed with groove 34 at the inner peripheral surface of middle lens barrel section 30 and at the Y direction both ends.Groove 34 is formed to the position above protuberance 32 from an end (right-hand member Fig. 6) of the X-axis positive direction side of middle lens barrel section 30.Thus, be provided with notch 35(Fig. 5 at the Y direction both ends of protuberance 32).
Such as Fig. 3 and shown in Figure 8, middle lens barrel section 30 is at the internal diameter Rn(of protuberance 32 φ 7.5mm for example) external diameter (for example φ 8.2mm) that is configured as than first lens 20 and the second lens 40 is little.In addition, middle lens barrel section 30 is in the internal diameter Rw(of the position that is not formed with protuberance 32 φ 8.2(plus tolerance for example) mm) be configured as slightly larger than the external diameter of first lens 20 and the second lens 40.Therefore, even first lens 20 and the second lens 40 are inserted the hollow bulb of centre lens barrel section 30, because at least a portion and protuberance 32 butts of the convex surface of first lens 20 and the second lens 40, so become the state that can't further enter inwards.
As shown in Figure 7, if make each focal line F
20And F
40Towards the direction (for example Z-direction) of the groove 34 that is not formed with protuberance 32, with the hollow bulb of lens barrel section 30 in the middle of first lens 20 and 40 insertions of the second lens, then the summit V of the convex surface of first lens 20 and the second lens 40 and protuberance 32 butts.Under this state, if make them around the central shaft C rotation of middle lens barrel section 30 while first lens 20 and the second lens 40 are pressed on protuberance 32, make each focal line F
20And F
40Direction consistent with the Y direction that is formed with groove 34, then as shown in Figure 8, the leading section of the convex surface of first lens 20 and the second lens 40 (summit V and near part thereof) embeds the notch 35 that is not formed with protuberance 32, and first lens 20 and the second lens 40 are positioned in correct position thus.That is, optical axis C and the focal line F of first lens 20 and the second lens 40
20, focal line F
40Direction roughly in full accord.In addition, because the leading section of each lens 20,40 convex surface embeds notch 35, so in the middle of each lens is pressed under the state of lens barrel section 30, each lens is difficult to rotate around central shaft C.Therefore, the focal line F of first lens 20
20And the focal line F of the second lens 40
40Direction be maintained at correct direction with respect to middle lens barrel section 30.In addition, by the size of groove 34 in Z-direction, can also set exactly the interval between first lens 20 and the second lens 40.
In addition, the Z-direction two ends in the side of middle lens barrel section 30 are formed with the sign groove 36 that extends along optical axis direction with the high position precision.The user when main unit 100 is set can according to sign groove 36 towards identifying exactly from the major diameter direction of the irradiation light of main unit 100 irradiation, therefore can not make UV irradiation unit 1 place of working correctly and easily locate main unit 100.
Arrange the main unit 100 of a plurality of above-mentioned illustrated present embodiments in Y direction with predetermined distance, can form thus long linear irradiation area.Fig. 9 is the outside drawing that possesses the irradiation module 1000 of a plurality of main unit 100(100A～100D).Irradiation module 1000 possesses four main unit 100A～100D that arrange in Y direction and the connecting block 300 that links aforementioned body unit 100A～100D.Be formed with four through holes 310 that connect along X-direction at connecting block 300 with equal intervals along Y direction.Each through hole 310 has the internal diameter slightly larger than the external diameter of lens unit 120, inserts respectively the lens unit 120 of main unit 100A～100D at each through hole 310.In addition, be through with screw 320 at connecting block 300 and the Z axis that passes the central shaft of each through hole 310.Main unit 100A～100D is fixed in connecting block 300 by the limit screw that is screwed into screw 320 (not shown).In addition, at the face of the exiting side (X-axis positive direction side) of connecting block 300, be formed with the sign groove 330 that extends from the upper end edge Z-direction of each through hole 310.
The assembling process of irradiation module 1000 is as follows.At first, the lens unit 120 of main unit 100A is inserted into the light incident side lens barrel 10(of section to each through hole 310 of connecting block 300 from exiting side lens barrel section 50 in the middle of lens barrel section 30 pass till the through hole 310).At this moment, the front end that makes each lens unit 120 is accurately consistent to the outstanding length of X-direction from the end face of the exiting side of connecting block 300, so that from the irradiation light of each lens unit 120 even intensity at irradiation area.Next, make main unit 100A rotation, thereby make the aligned in position of sign groove 36 with the sign groove 330 of the outgoing side that is formed at connecting block 300 of the side of lens barrel section 30 in the middle of being located at, and under this state, by limit screw main unit 100A is fixed in connecting block 300.Main unit 100B～100D is also implemented this order, finish thus irradiation module 1000.
As mentioned above, sign groove 36 be formed at the optical axis (X-axis) that passes lens unit 120 and with the plane (ZX plane) of focal line direction (Y direction) quadrature on.In addition, sign groove 330 be formed at the central shaft that passes through hole 310 and with the plane of the orientation quadrature of through hole 310 on.Lens unit 120 is contained in the through hole 310 in gapless mode substantially, so the optical axis of lens unit 120 (X-axis) is disposed on the central shaft of through hole 310.In addition, make main unit 100A～100D rotate to make sign groove 36 and the aligned in position that identifies groove 330, thereby the focal line direction (Y direction) of lens unit 120 is consistent with the orientation of through hole 310.Therefore, the linear illumination light that penetrates from four main unit 100A～100D and the illumination light of adjacency partially overlapping endways, thus form a branch of linear illumination light along the Y direction extension.
Figure 10 illumination light that to be explanation penetrate from irradiation module 1000 is at the figure of the beam profile of Y direction.The transverse axis of the coordinate diagram of Figure 10 represents the position of Y direction, and the longitudinal axis represents that the irradiation light of irradiation module 1000 is in the intensity (illumination) of each position.In addition, irradiation light intensity distribution (Illumination Distribution) changes according to the distance from irradiation module 1000.The coordinate diagram of Figure 10 represents to leave from the front end of irradiation module 1000 intensity of position of the designed distance (for example 28mm) of regulation.
Solid line Psum among Figure 10 is the beam profile of irradiation module 1000 integral body, dotted line P
A～P
DIt is respectively the beam profile of the single light beam that shines of main unit 100A～100D.In the present embodiment, with the light profile of each main unit 100 at the interval that a half value of the overall width of Y direction equates, arrange main unit 100A～100D along Y direction.Therefore, can obtain the partially overlapping of end of irradiation light of each main unit 100 of adjacency, and at the boundary member of the irradiation light of each main unit 100 also beam profile of general planar.When the large-area bonding of bonding process that carries out liquid crystal panel and so on, use the ultraviolet ray irradiation light have so unidirectional extension and smooth beam profile, thereby can bond uniformly efficiently.
More than be the explanation to an example of embodiments of the present invention, but the present invention is not limited to the structure of above-mentioned embodiment, and implements various distortion in the scope of the technological thought that can show in the record of claim.
In the above-described embodiment, lens unit 120 has used a pair of plano-convex cylindrical lens that convex lens is configured relative to one another, but the shape of the lens face in the outside is not limited to the plane, for example also can be that the lens face that has used the outside also is the lens face in two convex lens (with reference to Figure 11 (A)) of convex surface, the outside structure (with reference to Figure 11 (B)) as the concave-convex lens with positive refractive power of concave surface.And in the above-described embodiment, each lens that convex lens configures relative to one another are identical shape, but needn't be defined in identical shapedly, also can be used in combination variform lens (with reference to Figure 11 (C)).
In addition, above-mentioned embodiment uses LED to be used as light source, but also can use the light source (for example, the discharge lamp of mercury vapor lamp, metal halide lamp etc., semiconductor laser) of other kind.In addition, above-mentioned embodiment is with light source cell and the direct-connected structure of lens unit, but also can be the optical conductor via bundle fiber etc. is connected light source cell with lens unit structure.
In addition, above-mentioned embodiment is the structure at two ends of the Z-direction (the major diameter direction of irradiation light) of the side of lens barrel section 30 in the middle of sign groove 36 is formed at, but also can be the structure that only at one end forms the sign groove.In addition, above-mentioned embodiment also can be the structure that at least one end of the Y direction (the minor axis direction of irradiation light) in the side of middle lens barrel section 30 forms sign groove 36.
Claims (14)
1. lens unit, the light beam of incident is carried out optically focused to this lens unit and output device has the illumination light of linear Illumination Distribution, it is characterized in that possessing:
First lens and the second lens, they are respectively the cylindrical lenses that is formed with convex lens at first surface; And
Lens barrel, it keeps described first lens and described the second lens in the distance of the spaced regulation of described convex lens mode opposed and that each optical axis is consistent,
Described lens barrel possesses middle lens barrel section, and this centre lens barrel section is disposed between described first lens and described the second lens, by locating each lens with the described convex lens butt of each lens,
Described first lens and described the second lens are set to: have refracting power at the first direction vertical with described optical axis, and do not have refracting power in the second direction vertical with described optical axis and described first direction,
In the middle of described the outer peripheral face of lens barrel section, pass described optical axis and the straight line that extends along described first direction or described second direction at least one place be formed with sign.
2. lens unit according to claim 1 is characterized in that,
Lens barrel section has protuberance in the middle of described, and this protuberance inner peripheral surface of lens barrel section in the middle of described is outstanding towards central shaft,
Described protuberance, pass described optical axis and the straight line that extends along described second direction on, be provided with pair of notches section across described optical axis,
The leading section of the described convex lens of described first lens and described the second lens embeds respectively a pair of described notch, and described first lens and described the second lens are positioned respectively with respect to described first direction and described second direction thus.
3. lens unit according to claim 2 is characterized in that,
Described first lens and described the second lens have respectively columniform side,
Lens barrel section is the approximate circle tubular with internal diameter inner peripheral surface slightly larger than the external diameter of described first lens and described the second lens in the middle of described, at least a portion of the described convex lens side of described first lens and described the second lens is contained in respectively in the hollow bulb of this centre lens barrel section
Described protuberance forms the approximate circle annular with internal diameter less than the external diameter of described first lens and described the second lens.
4. according to claim 2 or 3 described lens units, it is characterized in that,
The both sides across described optical axis inner peripheral surface, described second direction of lens barrel section in the middle of described, be formed with a pair of groove, this a pair of groove extends from the described protuberance of an end crosscut of described optical axis direction and along described optical axis direction, by forming this a pair of groove, at described protuberance a pair of described notch is set.
5. lens unit according to claim 1 and 2 is characterized in that,
Described sign is the sign groove that extends along described optical axis direction.
6. lens unit according to claim 3 is characterized in that,
Described sign is the sign groove that extends along described optical axis direction.
7. the described lens unit of each according to claim 1～3 is characterized in that,
The external diameter of described first lens is identical with the external diameter of described the second lens.
8. lens unit according to claim 4 is characterized in that,
The external diameter of described first lens is identical with the external diameter of described the second lens.
9. lens unit according to claim 5 is characterized in that,
The external diameter of described first lens is identical with the external diameter of described the second lens.
10. lens unit according to claim 6 is characterized in that,
The external diameter of described first lens is identical with the external diameter of described the second lens.
11. a light irradiation unit is characterized in that possessing:
Light source cell; And
Each described lens unit in the claim 1～10, light beam optically focused on described first direction that it exports described light source cell,
Generation has the irradiation light at the long linear irradiation area of described second direction.
12. light irradiation unit according to claim 11 is characterized in that,
Described light source cell possesses a plurality of LED elements of two-dimensional arrangements.
13. according to claim 11 or 12 described light irradiation units, it is characterized in that,
Described light source cell possesses the light-emitting area of rectangular shape, and this light-emitting area has two limits parallel with described first direction and described second direction difference.
14. a light irradiation device is characterized in that,
Possess each described light irradiation unit in a plurality of claims 11～13,
A plurality of described light irradiation units are parallel to each other described optical axis and arrange with predetermined distance along described second direction,
Described predetermined distance is: the length identical with a half value of the overall width of irradiation area on described second direction of the irradiation light of described light irradiation unit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012078936A JP5538467B2 (en) | 2012-03-30 | 2012-03-30 | Lens unit, light irradiation unit and light irradiation device |
| JP2012-078936 | 2012-03-30 |
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| Publication Number | Publication Date |
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| CN103363442A true CN103363442A (en) | 2013-10-23 |
| CN103363442B CN103363442B (en) | 2017-07-11 |
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| CN201310109426.6A Active CN103363442B (en) | 2012-03-30 | 2013-03-29 | Lens unit, light irradiation unit and light irradiation device |
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| Country | Link |
|---|---|
| JP (1) | JP5538467B2 (en) |
| KR (1) | KR101599936B1 (en) |
| CN (1) | CN103363442B (en) |
| TW (1) | TWI539196B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104943350A (en) * | 2014-03-31 | 2015-09-30 | 豪雅冠得股份有限公司 | Light illuminating unit |
| CN104943351A (en) * | 2014-03-27 | 2015-09-30 | 豪雅冠得股份有限公司 | Light illuminating unit and light illuminating apparatus |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104483816B (en) * | 2014-12-19 | 2016-10-26 | 中国科学院长春光学精密机械与物理研究所 | A kind of class critical illumination system for extreme ultraviolet photolithographic |
| KR200490462Y1 (en) * | 2017-09-15 | 2019-11-14 | 이태호 | Projection-typed Luminescent Display Apparatus adaptable for billiard table |
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| CN2044353U (en) * | 1988-12-30 | 1989-09-13 | 大连医学院 | Multi-purpose jionter for endoscope camera |
| US20100074580A1 (en) * | 2008-09-22 | 2010-03-25 | Jyunichi Aizawa | Light source unit and image displaying apparatus |
| CN102388336A (en) * | 2010-07-20 | 2012-03-21 | 株式会社爱发科 | Light irradiation device |
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| JP2006139874A (en) * | 2004-11-12 | 2006-06-01 | Konica Minolta Opto Inc | Lens unit and optical pickup device |
| JP2007027295A (en) | 2005-07-14 | 2007-02-01 | Ushio Inc | Uv-ray irradiator |
| US7518745B2 (en) | 2005-09-28 | 2009-04-14 | Xerox Corporation | Imaging system with haptic interface |
| JP2008090260A (en) * | 2006-09-07 | 2008-04-17 | Seiko Epson Corp | Ultraviolet-light irradiation device and manufacturing apparatus for optical device |
| JP5121771B2 (en) | 2008-09-19 | 2013-01-16 | 三菱電機株式会社 | Light source unit and image display device |
| JP2010097178A (en) * | 2008-09-22 | 2010-04-30 | Mitsubishi Electric Corp | Light source unit and image display apparatus |
| JP3151132U (en) * | 2009-03-30 | 2009-06-11 | 扶桑電機工業株式会社 | Line irradiation type ultraviolet irradiation device |
| JP2011175058A (en) * | 2010-02-24 | 2011-09-08 | Kyocera Mita Corp | Optical scanner and image forming apparatus |
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2012
- 2012-03-30 JP JP2012078936A patent/JP5538467B2/en active Active
-
2013
- 2013-03-05 TW TW102107631A patent/TWI539196B/en active
- 2013-03-20 KR KR1020130029687A patent/KR101599936B1/en active IP Right Grant
- 2013-03-29 CN CN201310109426.6A patent/CN103363442B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2044353U (en) * | 1988-12-30 | 1989-09-13 | 大连医学院 | Multi-purpose jionter for endoscope camera |
| US20100074580A1 (en) * | 2008-09-22 | 2010-03-25 | Jyunichi Aizawa | Light source unit and image displaying apparatus |
| CN102388336A (en) * | 2010-07-20 | 2012-03-21 | 株式会社爱发科 | Light irradiation device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104943351A (en) * | 2014-03-27 | 2015-09-30 | 豪雅冠得股份有限公司 | Light illuminating unit and light illuminating apparatus |
| CN104943350A (en) * | 2014-03-31 | 2015-09-30 | 豪雅冠得股份有限公司 | Light illuminating unit |
| CN104943350B (en) * | 2014-03-31 | 2019-07-30 | 豪雅冠得股份有限公司 | Light irradiation unit |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2013210422A (en) | 2013-10-10 |
| TW201350907A (en) | 2013-12-16 |
| KR101599936B1 (en) | 2016-03-04 |
| CN103363442B (en) | 2017-07-11 |
| KR20130111321A (en) | 2013-10-10 |
| TWI539196B (en) | 2016-06-21 |
| JP5538467B2 (en) | 2014-07-02 |
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