CN102954374A

CN102954374A - Light source unit

Info

Publication number: CN102954374A
Application number: CN2012103031106A
Authority: CN
Inventors: 石田贤志; 中岛敏博
Original assignee: Ushio Denki KK
Current assignee: Ushio Denki KK
Priority date: 2011-08-24
Filing date: 2012-08-23
Publication date: 2013-03-06
Anticipated expiration: 2032-08-23
Also published as: CN102954374B; KR20130023060A; TW201309968A; JP2013045606A; JP5737064B2; TWI561768B

Abstract

The invention provides a light source unit which can obtain a high water resisting property in a matching part of a window component, and also can obtain the high water resisting property in the matching part of the window component for long-term. The light source unit is characterized in that in a cylindrical shell possessing a borderless integrated structure, a light source module possessing an LED substrate equipped with a plurality of LED elements is arranged in a manner of radiating light rays coming from the LED elements composing the light source module across the window component, and the window component is the window component which is fixedly arranged in a manner of plugging an opening of an opening part in an opening part of the cylindrical shell and has the light transmission property, and an annular sealing part made of a caulking material possessing a liquid impermeability is formed at the boundary whole cycles of the cylindrical shell and the window component.

Description

Light source cell

Technical field

The light source cell of (the Light Emitting Diode) element that the present invention relates to possess a plurality of LED, in more detail, relate to sending the LED element of light in ultraviolet light zone as light emitting source and can be as the set of printing ink with the sclerosis of light source or the resin combination light source cell with light source etc.

Background technology

Recently, the exploitation of LED element of sending the light in ultraviolet light zone is pushed into, and inquires into the LED element that research will radiate the light in this kind ultraviolet light zone, is used for previous various fields of using the discharge lamp of inclosure mercury as light source.

Certain light source cell as the LED element of the light that possesses the emitting ultraviolet light zone, disclose following structure, the LED substrate that disposes a plurality of LED elements is equipped on above the fin, its face shaping is rectangular-shaped light source module, the mode that covers with the protecting cover member that is had the aluminum of peristome by the light radiation direction the place ahead at this light source module arranges, and from the light of the LED element that consists of this light source module, the window member of the glass system that arranges via the mode with the peristome of blocking protecting cover member and radiate (for example with reference to patent documentation 1).In this light source cell, the protecting cover member is formed by a plurality of tabular component that utilizes screw component to fix respectively in 4 sides of light source module.

The light source cell of this kind structure specifically, for example shown in the patent documentation 1, motion has as the usefulness of photo-hardening type ink-jet printer device so that the printing ink of photo-hardening type is bonded to the set of the object of paper etc. uses with light source, in addition, in the photo-hardening device, inquire into research as the sclerosis that makes the resin combination sclerosis that contains ray hardening resin with uses such as light sources.

So, in the situation that light source cell is used with light source etc. with the sclerosis of light source or resin combination as the set of printing ink, window member can adhere to dirt.

Specifically, when light source was used in the set that is used for printing ink, during for the object ink jet, the part of injected printing ink was not attached to object and splashes towards periphery, also can become dirt and was attached to the window member of light source cell.And, so be attached to the printing ink of the photo-hardening type of window member, exist because being hardened by UV-irradiation and under the state of this sclerosis, becoming the situation that dirt adheres to.

And when light source use in the sclerosis that is used for resin combination, the siloxanes that resin combination is contained etc. can evaporate, and resulted to be attached to the window member of light source cell and this window member can produce gonorrhoea (bluring).

Thus, the situation that the attachment (dirt) that is attached to the window member of light source cell also has the cloth wiping window member that dips in the organic solvents such as ethanol by utilization to remove.But, utilize the easy wiping operation of this kind, can't remove such as the attachment of the state after the sclerosis of the printing ink of photo-hardening type etc.Like this for remove can't wiping attachment, the whole face of outer surface that the attachment of window member need to be adhered to impregnated in the organic solvent and cleans behind the certain hour again.

Yet, for the whole face of the outer surface of window member be impregnated in the organic solvent, need the dipping light source cell window member set part, but, with the setting part and impregnated in the organic solvent of the window member of light source cell the time, following problems is for example arranged, organic solvent is from the plate-shaped member gap each other of this protecting cover member of formation of the gap between window member and the protecting cover member or protecting cover member etc. and enter the inside of protecting cover member, and makes thus the LED element short circuit of the inside that is equipped on the protecting cover member.

And, arrange in the light source cell of the structure that window member becomes at the protecting cover member, sometimes foreign matter enters into the gap between window member and the protecting cover member, in the set that light source cell is used for printing ink with the sclerosis of light source or resin combination during with light source etc., the situation that the dirt (attachment) that exists dirt to invade or remove from window member in the wiping operation of the attachment of the window member that is attached to light source cell enters etc., thus, there is the gap that results between window member and the protecting cover member to be invaded by foreign matter or dirt and produces the problem of the possibility of evils.And, in addition, especially when using sticker to fix window member, for example, result from and partly impregnated in the medium adhesion bonding part that makes liquid immersion arrive window member of organic solvent by the setting of window member with light source cell, or by producing deteriorated etc. from the light (ultraviolet light) of LED element to the irradiation of the adhesion bonding part of window member, and might produce following problem, the adhesive performance of sticker reduces and can't obtain sufficient adhesion for a long time between tubular shell and the window member.

Patent documentation 1: TOHKEMY 2011-103261 communique

Summary of the invention

The present invention makes in view of above situation, and its objective is provides a kind of light source cell that part can obtain high water proofing property that sets at window member.

Other purposes of wood invention provide a kind of light source cell that can obtain long-term high water proofing property in the part that sets at window member.

Light source cell of the present invention, it is characterized by: the light source module that possesses the LED substrate of a plurality of LED elements of configuration, in the tubular shell of the integrative-structure with non-boundary part, with across window member, radiation sets from the mode of the light of the LED element that consists of this light source module; This window member is the window member that the mode with the opening of this side's of blocking peristome in a side's of this tubular shell peristome is fixed and arranges and have light transmission;

The border complete cycle that spreads all over this tubular shell and this window member is formed with the annular seal section that is made of the ca(u)lk material with liquid impermeability.

Preferred in light source cell of the present invention, the inner peripheral surface at the peristome of aforementioned tubular shell is provided with window member support protuberance; The light from the LED element that consists of the light source module on the surface that becomes this window member support usefulness protuberance is regional by the light of the state of shading radiation direction front side, adheres the engagement window member by sticker.

Preferred in light source cell of the present invention, on the border of aforementioned tubular shell and aforementioned window member, form in order to fill the ca(u)lk ditch of ca(u)lk material.

The effect of invention:

According to light source cell of the present invention, because the tubular shell of fixed window member is the integrative-structure with non-boundary part, and the border at window member and tubular shell, spread all over this border complete cycle, be provided with the annular seal section that is consisted of by the ca(u)lk material with liquid impermeability, therefore, outer peripheral face at tubular shell, the gap that is communicated with the inside of outside and this tubular shell, and, border at window member and tubular shell, the ca(u)lk material of the gap that is communicated with the outside be formed on this border and the inside of tubular shell by formation annular seal section is by liquid-tight blocking reliably, so the basket body that consists of by tubular shell and window member has high water proof structure, can obtain high water proofing property the setting in the part of window member that basket body by this consists of.

So light source cell of the present invention is because setting of window member partly has high water proofing property, so even in the situation that partly impregnated in for a long time in the liquid that sets with this window member, liquid also can not enter the inside of tubular shell.

And light source cell of the present invention because the gap that is formed on the border between window member and the tubular shell is configured the state of the ca(u)lk material blocking of annular seal section, does not result from foreign matter or dirt and invades the evils in this gap so can not produce.

In light source cell of the present invention, be made as following structure, inner peripheral surface at the peristome of tubular shell arranges window member support protuberance, radiated direction front side zone with the becoming from the light that consists of light source module LED element of surface of protuberance by the light of the state of shading in this window member support, adhesion and engagement window member, thus, can make the adhesion bonding part of window member be positioned at the square side of annular seal section, and can prevent from consisting of the sticker of this adhesion bonding part by UV-irradiation, so even sticker does not have light resistance and liquid impermeability to ultraviolet light, also not can because of by UV-irradiation or because of the saturated with liquid sticker deteriorated, so that adhesive performance reduces, keep the adherence between tubular shell and the window member, as a result, keep border between window member and the tubular shell by the state of fluid-tight by annular seal section, so, setting in the part of window member, can obtain for a long time high water proofing property.

Description of drawings

Fig. 1 is the explanation stereogram of an example of the structure of expression light source cell of the present invention.

Fig. 2 is the explanation part amplification profile of internal structure of tubular shell of the light source cell of presentation graphs l.

Fig. 3 is the explanation stereogram of light source module of the light source cell of expression pie graph 1.

Fig. 4 be the expression pie graph 1 light source cell tubular shell explanation with figure, (a) be the explanation stereogram of tubular shell, (b) be the explanation amplification profile of tubular shell.

Fig. 5 is the explanation amplification profile of the structure on the tubular shell of light source cell of presentation graphs 1 and the border between the window member.

Fig. 6 is the key diagram of window member of the light source cell of expression pie graph 1, (a) is the explanation stereogram of window member, (b) is the explanation amplification profile of window member.

Fig. 7 is that expression is from the key diagram of the light path of the light of the LED element of the formation light source module of the light source cell of Fig. 1.

Symbol description:

10: light source cell

15: the protecting cover member

17: power supply is supplied with connector

18: housing

18A: tabular component

19: screw component

20: the light source module

The 22:LED element

The 23:LED substrate

25: fin

25A: heat sink body

30: tubular shell

30A, 30B, 30C, 30D: side surface part

31: front end face

3lA: front end inner peripheral

33: window member support protuberance

33A, 33B: side

33C: front end face

35: window member

36: outer surface

36A: outer peripheral edges

37: inner surface

38: outer peripheral face

39: fillet surface

40: annular seal section

4lA, 41B: periphery

42: the ca(u)lk ditch

45: window member is fixedly used adhering agent layer

The specific embodiment

Below, embodiments of the present invention are described.

Fig. 1 is the explanation stereogram of an example of the structure of expression light source cell of the present invention, Fig. 2 is the explanation part amplification profile of internal structure of tubular shell of the light source cell of presentation graphs 1, and Fig. 3 is the explanation stereogram of light source module of the light source cell of expression pie graph 1.

This light source cell 10 possess a plurality of LED elements 22 be arranged on above rectangular-shaped LED substrate 23 on (Fig. 2 and Fig. 3's is top) be provided in the light source module 20 of the structure that top (Fig. 2 and Fig. 3's is top) of the fin 25 with rectangular-shaped face shaping become, and this light source module 20 has with in the tubular shell 30 of torch shape tubular, set the structure that forms from the side's (top of Fig. 1 and Fig. 2) of this tubular shell 30 opening (below, also be called " light radial openings ") radiation from the mode of the light of a plurality of LED elements 22 that consist of light source module 20.Then; in tubular shell 30; this light radial openings of blocking; and having the LED substrate 23 that consists of light source module 20 reaches in order to protect the window member with light transmission 35 of a plurality of LED elements 22; be fixedly installed under the state in being housed in this light radial openings section peristome with light radial openings (below; also be called " light radial openings section "); on the border of this member 35 with tubular shell 30, be formed with by spreading all over its complete cycle and having the annular seal section 40 of the rectangular ring that the ca(u)lk material of liquid impermeability becomes.

In the example of this figure, (Fig. 2 below) side below the fin 25 that consists of light source module 20, be equipped with in order to the electric power feed mechanism (not shown) of this light source module 20 from the external power source supply capability, and to cover this electric power feed mechanism, and in the mode of the opposing party's opening (below of Fig. 1 and Fig. 2) of covering tubular shell 30, be provided with a plurality of metal tabular component 18A and screw togather the housing 18 that forms by screw component l9, form protecting cover member 15 by this housing 18 with tubular shell 30.And, on the housing 18 that consists of protecting cover member 15, be provided with to connect the power supply supply connector 17 of external power source.In addition, in the present embodiment, as in order to form a plurality of component parts of housing 18, use metal tabular component 18A, still, a plurality of component parts relevant with housing 18 are not limited to tabular component, also can as bulk.

On the surface of LED base stage 23, as shown in Figure 3, a plurality of (being 32 in legend) LED element 22, is provided with in order to the connector (not shown) to a plurality of LED element 22 supply capabilities at the back side of this LED substrate 23 uniformly-spaced to be configured to two row.

As LED element 22, use the element of the light in emitting ultraviolet light zone, specifically, for example using, the peak value emission wavelength is the element of 365nm, 385nm and 405nm.

As the base material that consists of LED substrate 23, use the suitable base material corresponding with the kind of LED element 22 etc., such as the base material that can use the nitrogenize aluminum etc.

Fin 25, as shown in Figure 3, for be arranged in the parts of the LED element 22 on the LED substrate 23 in order to cooling, for example in the inside of the heat sink body 25A of the face shaping with cubic made of copper, use so that the circulation stream of the cooling mediums such as cooling water circulation such as being formed with, and the stream that will circulate to this supplies with the supply unit (not shown) of cooling medium, with the LED substrate 23 residing zones of the outer surface that is arranged on heat sink body 25A in order to the discharge portion (not shown) of discharging cooling medium from this circulation stream in addition the zone and consist of.In addition, represented the fin of the structure that cools off with cooling medium in the present embodiment, still, fin is as such as also can by the structure that carries out forced air-cooling with the fan of the fin of fan etc. etc.

As shown in Figure 4, tubular shell 30 has the integrative-structure that does not have boundary member.

At this, in this manual, so-called " integrative-structure that does not have boundary member " expression is such as by utilizing machining etc. to come integrally formed resulting structure with bonding part, though perhaps consist of by a plurality of member, has engagement member bonding part each other, but its bonding part forms in this bonding part mode very close to each other such as waiting by welding, has the structure of seal for liquid.

In this legend, tubular shell 30 is for rectangular drum like and have the structure of 4 side surface part, and still, these 4

side surface part

30A, 30B, 30C, 30D are continuous, and do not have bonding part and boundary member.And in the outer peripheral face of tubular shell 30, each ora terminalis angle chamfering is processed.In addition, the tubular shell 30 of present embodiment is by making machining and integrally formed formation to metal derby, and between the side surface part that adjoins each other of 4 side surface part, do not possess bonding part and boundary member yet, but, tubular shell engages 4 tabular components to form such as waiting by welding, also can at the structure that this bonding part gapless forms in 4 bonding parts that tabular component is engaged with each other.

And, in tubular shell 30, be formed with and accommodate light source module 20, and in order in light radial openings section, to hold the window member spatial accommodation of window member 35.

In this legend, the interior week of the light radial openings section of window member spatial accommodation by tubular shell 30 and window member support described later form with protuberance 33, have window member 35 to be adapted to its outer surface 36 and to be positioned at than the front end face 31 residing position levels of the light radial openings side of tubular shell 30 degree of depth of the state of the position (below of Fig. 2) of below more.Specifically, the degree of depth of window member spatial accommodation (front end face 31 of tubular shell 30 and window member support with the distance of leaving of the side 33A of protuberance 33) is 2mm.

Tubular shell 30 is contained in its inner component parts for basis, specifically, make suitable shape according to light source module 20 and window member 35 etc., but, its thickness is especially in the situation that a plurality of light source cells 10 of arrangement use, for the window member 35 that makes the light source cell 10 that adjoins each other approaches, make greatly and preferably thickness less (for example 2.5mm is following) thereby suppress luminous discontinuity zone change.

In this legend, tubular shell 30 around the inner peripheral surface relevant portion of window member spatial accommodation compared to other parts, have larger thickness, with thickness around the inner peripheral surface relevant portion of window member spatial accommodation be 3.4mm.And, thickness about other parts (with the part beyond the inner peripheral surface relevant portion of window member spatial accommodation), side (the side surface part 30A of minor face, thickness 30C) is less to be good, still, and side (the side surface part 30B on long limit, 30D) need to keep mechanical strength, so the thickness of the side of the Thickness Ratio minor face of the side on long limit is also thick, for example the thickness of growing the side on limit can be made as 2mm, the thickness of the side of minor face is made as 1.5mm.

As the material of tubular shell 30, use for having chemical sproof metal or resin for the employed organic solvent of attachment (dirt) of removing the outer surface 36 that is attached to window member 35.Specifically, such as enumerating aluminium etc.

In this legend, whole of the outer peripheral face of tubular shell 30, from preventing the viewpoint at random of light, apply the black alumite and process (black alumite treatment).And, inner peripheral surface at tubular shell 30, arrive the zone (following also be called " light path is around face ") of the light path till the window member 35 that is fixed in light radial openings section around the light from the LED element 22 that consists of light source module 20, make light from the LED element 22 that consists of light source module 20 with the viewpoint of high efficiency from window member 35 radiation, apply mirror finish.

And, at tubular shell 30, inner peripheral surface in light radial openings section is provided with window member support protuberance 33, and regional by the light of the state of shading radiation direction front side with the light from the LED element 22 that consists of light source module 20 on the surface of protuberance 33 in this window member support, fixing by sticker (following also be called " the fixing sticker of using of window member ") adhesion engagement window member 35 and support, thus, fixed window member 35 in the light radial openings section of tubular shell 30.

This window member support is made of the lip portions that the complete cycle along the inner peripheral surface that spreads all over light radial openings section forms the rectangular ring that the front end inner peripheral 31A of light radial openings extends with protuberance 33, and to the direction projection of drawing in interior week perpendicular to tubular shell 30, its section shape is the quadrangle shape.

And, as shown in Figure 5, the peripheral part of the inner surface 37 of window member 35 is positioned at perpendicular to the face of window member support with the inner peripheral surface of the tubular shell 30 on the surface of protuberance 33, that is, on side (following also be called " window member the mounting surface ") 33A of window member support with the radiation direction front side of the light in the side of protuberance 33 (upper side of Fig. 5), and in the peripheral part of the inner surface 37 of this window member 35 and the gap between the window member mounting surface 33A, be formed with by the fixing window member that consists of with sticker of window member fixing with adhering agent layer 45.This window member fixing with adhering agent layer 45 only be formed at the window member support with in the surface of protuberance 33 from the light of the LED element 22 of formation light source module 20 by in the zone on the window member mounting surface 33A of the state of shading, can not be formed at the zone beyond this window member mounting surface 33A, that is from the zone of the light irradiation of the LED element 22 that consists of light source module 20.

In this legend, the window member support is integrally formed at tubular shell 30 with protuberance 33, and this window member support is with having non-boundary integrative-structure partly between protuberance 33 and the tubular shell 30.In addition, in the present embodiment, the window member support is by the formed parts that do not have the bonding part of machining metal derby with the tubular shell 30 that protuberance 33 is wholely set, but, even utilization welding etc. engages a plurality of tabular components, also can between the window member support is with protuberance and tubular shell, form the integrative-structure of non-boundary part.

And, to window member mounting surface 33A in addition the zone around window member spatial accommodation of window member support with the surface of protuberance 33, specifically, side 33B and the front end face 33C of light radiation direction rear side (lower side of Fig. 5), identical around face with the light path of tubular shell 30, impose mirror finish.

Perpendicular to the size (following also be called " projecting height ") of window member support with the direction of the inner peripheral surface of the tubular shell 30 of protuberance 33, can fully support fixed window member 35 for being made as this window member support with protuberance 33, and, as required, annular seal section 40 can be of a size of good by the light irradiation from a plurality of LED elements 22 that consist of light source module 20.

In this legend, for being 2.1mm from the projecting height around the inner peripheral surface of the tubular shell 30 of window member spatial accommodation, the projecting height from light path around face is 3mm with the projecting height of protuberance 33 in the window member support.

Use sticker as fixing in order to the window member of fixed window member 35, use and the material of window member support with protuberance 33, the material of window member 35 and as required with the corresponding suitable material such as the material of tubular shell 30, but, according to being coated on the window member support with the viewpoint of the workability of the window member mounting surface 33A of protuberance 33 with sticker with window member is fixing, low viscosity person is good, is sticker etc. such as using silicone rubber.

Be the desirable concrete example of sticker as silicone rubber, reach " KER-25D0 (A/B) " the thermmohardening type binding agent of (arbitrary Shin-Estu Chemical Co., Ltd's system that is all) etc. such as enumerating " KER-2600 (A/B) ".

As shown in Figure 6, window member 35 is the tabular of 1.75mm and parts with the shape that is applicable to this light radial openings section for thickness for example, but so that is contained in window member spatial accommodation in the light radial openings section of tubular shell 30 and the light radial openings of this tubular shell 30 of blocking.

In legend, window member 35 is for only having a little the rectangular flat shape parts of the transverse and longitudinal size less than the transverse and longitudinal size of the light radial openings of tubular shell 30, as shown in Figure 5, its outer peripheral face 38 is than spreading all over complete cycle and around also inner side's side ground configuration of inner peripheral surface of the window member spatial accommodation of tubular shell 30, and in the outer peripheral face 38 of this window member 35 and around between the inner peripheral surface of the window member spatial accommodation of tubular shell 30, spread all over its complete cycle and be formed with the gap.And, in this gap, it is fixing with adhering agent layer 45 to be formed with window member in the zone (zone of interior side's side) of light radiation direction rear side (lower side of Fig. 5), and, in the zone (zone of foreign side's side) of light radiation direction front side (upper side of Fig. 5), be filled with the ca(u)lk material as described later.And the formation window member in crack is fixed the zone with adhering agent layer 45 during this time, can be by the light direct irradiation from the LED element 22 that consists of light source module 20.

Material as window member 35, use has transmissive from the light transmission of the light of the LED element 22 that consists of light source module 20, and for having chemical sproof glass or resin for the employed organic solvent of attachment (dirt) of removing the outer surface 36 that is attached to this window member 35.Specifically, such as enumerating Pyrex etc.

And, at window member 35, by chamfering is made at the ora terminalis angle of light radiation direction front side (upper side of Fig. 6 (b)), between outer surface 36 and outer peripheral face 38, spread all over its complete cycle and form fillet surface 39, consist of the circumference of window member 35 by this fillet surface 39 and outer peripheral face 38.

In legend, window member 35 is applied 45 degree chamfer machining, be 0.75mm with the thickness of the outer peripheral face 38 relevant portions distance of leaving of fillet surface 39 (inner surface 37 with).

Then, circumference by window member 35 and around the inner peripheral surface of the window member spatial accommodation of tubular shell 30, form the border of window member 35 and tubular shell 30, on this border, be formed at the circumference of this window member 35 and around the gap between the inner peripheral surface of the window member spatial accommodation of this tubular shell 30, form in order to fill the ca(u)lk ditch 42 of ca(u)lk material by spreading all over its complete cycle.

Form ca(u)lk ditch 42 by the border at window member 35 and tubular shell 30, can control the formation position of annular seal section 40 and size thereof etc., for this reason, can prevent from being obstructed because of annular seal section 40 via the advancing of light from the LED element 22 that consists of light source module 20 of window member 35 radiation.

Ca(u)lk ditch 42 is from the viewpoint of the workability of filling the ca(u)lk material and the location of window member 35 etc., has along with trench depth becomes large and being shaped as that the ditch width diminishes is good.

And the trench depth of ca(u)lk ditch 42 is that 0.9～1.75mm is good.

In legend, by the inner peripheral surface around the window member spatial accommodation of tubular shell 30, and the fillet surface 39 of window member 35 and continuously the gap between the zone of the light radiation direction front side of the outer peripheral face 38 of this fillet surface 39 form ca(u)lk ditch 42, the ditch width diminishes along with trench depth becomes greatly then, its section shape is the approximate right angle triangle, maximum ditch width is 1mm, and minimum ditch width is 0.1mm, and maximum trench depth (from the maximum trench depth of the outer surface 36 of window member 35) is 1.75mm.

Annular seal section 40 is, in the border of tubular shell 30 and window member 35, gap between the boundary face that consists of in order to the circumference with the inner peripheral surface of the light radial openings section by tubular shell 30 and window member 35, with the parts of the mode blocking of the internal communication of the inside that can not make outside and light source cell 10 through this gap that is tubular shell 30, and the mode with the circumference that surrounds window member 35 arranges in foreign side's side (upper side of Fig. 5) of window member 35 and the adhesion bonding part of tubular shell 30.

From the viewpoint from the light of the LED element 22 that consist of light source module 20 of high efficiency utilization via window member 35 radiation, being positioned at than the front end face 31 residing height of the light radial openings side of tubular shell 30 zone of side (lower side of Fig. 5) on the lower also, and the mode that the outer surface 36 of window member 35 can not cover outer peripheral edges 36A forms annular seal section 40 for good.And, from the viewpoint of cell location, with the front end inner peripheral 3lA of the light radial openings of the outer peripheral edges 36A that do not cover the outer surface 36 that forms window member 35 and tubular shell 30, and do not form good from front end face 31 outstanding modes.

In the example of this figure, annular seal section 40 is by forming at ca(u)lk ditch 42 interior filling ca(u)lk materials, and be positioned at than front end face 31 height of living in of the light radial openings side of tubular shell 30 zone of side on the lower also, and, the periphery 41A of interior side's side of annular seal section 40 is positioned at than the outer peripheral edges 36A height of living in of the outer surface 36 of window member 35 on the lower position also, the periphery 4lB of foreign side's side of annular seal section 40 is positioned at than the residing height of front end inner peripheral 31A of the light radial openings that forms tubular shell 30 on the lower position also, and the front end inner peripheral 3lA of the outer peripheral edges 36A of window member 35 and tubular shell 30 becomes and spreads all over the state that its complete cycle exposes.In this kind state, have when contacting to carry out cure process etc. take the front end inner peripheral 3lA of tubular shell 30 as benchmark with faces such as irradiation objects, certain distance can be correctly guaranteed, and the advantage of stable exposure can be guaranteed.

As in order to form the ca(u)lk material of annular seal section 40, use has the liquid impermeability, and for having chemical sproof material for the employed organic solvent of attachment (dirt) of removing the outer surface 36 that is attached to window member 35, and, light source cell 10 textural, annular seal section 40 irradiation during from the light of the LED element 22 that consists of light source module 20, is used to have liquid impermeability and drug resistance, and the structure with light resistance (ultraviolet resistance) is good.

Concrete example as the ca(u)lk material, be ca(u)lk material etc. such as using poly-silica, and, be the desirable concrete example of ca(u)lk material as poly-silica, such as the 1 composition room temperature vulcanizing shaped material that can enumerate " S-45W " (chemical industry Co., Ltd of SHIN-ETSU HANTOTAI system) and " TOSSEAL381W " (stepping figure new high-tech material Japan Co., Ltd (Momentire Performance Materials Japan) system) etc., the material of the l composition thermmohardening type of " TSE3261-G " (stepping figure new high-tech material Japan Co., Ltd system) etc.

Light source cell 10 according to above structure, because being fixed with the tubular shell 30 of window member 35 is the structure with non-boundary part-body structure, and the border between window member 35 and tubular shell 30, spread all over this border complete cycle, be formed with the annular seal section 40 that is consisted of by the ca(u)lk material with liquid impermeability, so outer peripheral face at tubular shell 30, the gap that is communicated with the inside of outside and this tubular shell 30, and, in the border of window member 35 and tubular shell 30, be formed at the outer peripheral face 38 of the window member 35 that consists of this border and by between the inner peripheral surface of the circumference of 39 one-tenth of fillet surfaces and the window member spatial accommodation that centers on tubular shell 30, the gap that is communicated with the inside of outside and tubular shell 30, ca(u)lk material by consisting of annular seal section 40 is by liquid-tight blocking reliably, so, the basket body that consists of at tubular shell 30 fixed window members 35 becomes and has high water proof structure, can obtain high water proofing property the setting in the part of window member 35 that basket body by this consists of.

So light source cell 10 has a high water proofing property because of the part that sets of window member 35, so even impregnated in situation in the liquid in the part that sets with this window member 35 in two hours long-time, liquid also can not enter the inside of tubular shell 30,

And because becoming the state of the gap that forms on the border of window member 35 and the tubular shell 30 ca(u)lk material blocking by consisting of annular seal section 40, so light source cell 10 can not invaded by foreign matter or dirt because of its gap and do not produced evils.

And, in light source cell 10, window member 35 is fixing with the adhere window member mounting surface 33A of the window member support usefulness protuberance 33 that is engaged in the inner peripheral surface that is arranged on tubular shell 30 of sticker by window member, in this window member mounting surface 33A, as shown in Figure 7,, can't be shone by light (ultraviolet light) with sticker so the window member of fixed window member 35 is fixing by side 33B and the front end face 33C shading of window member support with protuberance 33 from the light of the LED element 22 that consists of light source module 20.At this, in Fig. 7, example from the light path of the light of LED element 22 represents by arrow, light path L1 is from the example of LED element 22 towards the light path of the luminous light of the direction of window member 35, light path L2 is luminous with the direction of the front end face 33C of protuberance 33 towards the window member support from LED element 22, the example of the light path of the light that in this front end face 33C, reflects, light path L3 is luminous with the direction of the side 33B of protuberance 33 towards the window member support from LED element 22, the example of the light path of the light that reflects in the 33B of this side.

And, be positioned at the square side of annular seal section 40 because of the adhesion bonding part of window member 35, even impregnated in situation in the liquid in the part that sets with the window member 35 of light source cell 10, the window member of fixed window member 35 is fixing can not to touch liquid with sticker yet.

So, according to light source cell 10, even window member is fixing with the binding agent of sticker for not having light resistance and liquid impermeability for ultraviolet light, do not have because by UV-irradiation or liquid immersion and window member is fixing deteriorated with sticker yet, therefore the fixing adhesive performance with sticker of window member can not reduce, can keep the adherence between tubular shell 30 and the window member 35, the result, because keep the state that window member 35 and the border of tubular shell 30 are ended by liquid sealing by annular seal section 40, so in setting in the part of window member, can obtain for a long time high water proofing property.

This light source cell 10 applicable to the usefulness of photo-hardening type inkjet-printing device so that the printing ink of photo-hardening type is bonded to the set light source of the objects such as paper, perhaps, in the photo-hardening device, with so that the sclerosis of resin combination sclerosis that contains ray hardening resin with light source etc.

Namely, according to light source cell 10, even have as the set of printing ink with the sclerosis of light source or resin combination with uses such as light sources and dirt is attached to the situation of window member 35, can not follow the evils such as LED element 22 short circuits that consist of light source module 20 etc. that result from that organic solvent enters that the inside of tubular shell 30 produces yet, the window member of dipping light source cell 10 sets part in organic solvent, thus, 36 whole of the outer surfaces that adheres to dirt of window member 35 can be impregnated at certain hour and clean this dirt in the organic solvent.And; the dirt of dust etc. can not enter the gap that forms in the border of window member 35 and tubular shell 30; and; come wiping to be attached to the dirt of removing from window member 35 in the operation of dirt of window member 35 at the cloth that utilization is moistened with organic solvent and also can not enter, so can not enter this gap and produce evils because of dust or dirt.

In light source cell of the present invention, be not limited to aforementioned example, can apply various changes.For example, as long as the window member support can fully be supported the fixed window member with protuberance, it is also passable not to be that the inner peripheral surface complete cycle that spreads all over light radial openings section extends, and, not to have integrative-structure with tubular shell also can.

And, as long as the ca(u)lk ditch can be to filling the ca(u)lk material between the border of window member and tubular shell, be not limited to form as chamfering by the ora terminalis angle to the light of window member radiation direction front side, as forming and also can by being made as around the inner peripheral surface of the window member spatial accommodation of tubular shell taper, and, as by will being made as taper around the inner peripheral surface of the window member spatial accommodation of tubular shell, and the ora terminalis angle of the light radiation direction front side of window member formed as chamfering also can.

Claims

1. light source cell is characterized by:

The light source module that possesses the LED substrate that disposes a plurality of LED elements is in the tubular shell of the integrative-structure with non-boundary part, to set across the mode of window member radiation from the light of the LED element that consists of this light source module; This window member, being fixed in the mode of the opening of this side's of blocking peristome in a side's of this tubular shell peristome arranges and has a light transmission;

The border complete cycle that spreads all over this tubular shell and this window member is formed with by the formed annular seal of the ca(u)lk material section with liquid impermeability.

2. light source cell as claimed in claim 1, wherein,

Inner peripheral surface at the peristome of aforementioned tubular shell is provided with window member support protuberance; This window member support with the surface of protuberance become light from the LED element that consists of the light source module by the light of the state of shading radiation direction front side zone, by the sticker engagement window member of adhering.

3. light source cell as claimed in claim 1 or 2 wherein, on the border of aforementioned tubular shell and aforementioned window member, is formed with to fill the ca(u)lk ditch of ca(u)lk material.