CN104950416A - Optical part and making method thereof - Google Patents
Optical part and making method thereof Download PDFInfo
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- CN104950416A CN104950416A CN201510136423.0A CN201510136423A CN104950416A CN 104950416 A CN104950416 A CN 104950416A CN 201510136423 A CN201510136423 A CN 201510136423A CN 104950416 A CN104950416 A CN 104950416A
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- Prior art keywords
- bonding agent
- mentioned
- groove
- transparent member
- holder
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/025—Mountings, adjusting means, or light-tight connections, for optical elements for lenses using glue
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
- F21V5/048—Refractors for light sources of lens shape the lens being a simple lens adapted to cooperate with a point-like source for emitting mainly in one direction and having an axis coincident with the main light transmission direction, e.g. convergent or divergent lenses, plano-concave or plano-convex lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/58—Optical field-shaping elements
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- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Lens Barrels (AREA)
- Mounting And Adjusting Of Optical Elements (AREA)
Abstract
An optical part and a making method thereof are provided; the optical part has high bonding intensity to a holder, and can prevent pollution of an effective surface of a transparent part; the optical part comprises the transparent part and the holder used for fixing the transparent part; the holder comprises a transparent part holding portion having an opening, a slot formed along the opening, and a bonding agent injection portion formed through extending forward a part of the slot; the periphery of the transparent part is fixed in the slot through the bonding agent.
Description
Technical field
The present invention relates to the manufacture method of optics and optics.
Background technology
In the past, the transparent member of the light transmission lens etc. according to purposes penetrated from LED (Light Emitting Diode, light emitting diode) or LD (Laser Diode, laser diode) and being utilized.
There is not the direction transmission to regulation such as position skew owing to needing to make light in lens, so be fixed to, base station etc. is upper to be used.In the past, lens to the fixing employing of base station etc. after to lens or the direct adhesive-applying of base station by method (for example, referring to patent documentation 1 and patent documentation 2) that both fit.
Below, at lens holder (holder) upper direct adhesive-applying, lens are described the method that lens holder is fixing.
In Figure 17, (a) is used to the representative side section view of the lens fixing means illustrated in the past, and in Figure 17, (b) is its planimetric map.Figure 18 and Figure 19 is used to the representative side section view of the lens fixing means illustrated in the past.As shown in (b) in (a) in Figure 17 and Figure 17, the groove 104 that lens holder 100 has opening 102 and formed along opening 102.In lens fixing means in the past, first, in groove 104, separate certain interval and adhesive-applying 106 (with reference to (b) in Figure 17).Coating uses point gum machine (dispenser) 108 to carry out.Then, the edge 114 positioning the lens 110 that band is had chance with is embedded into (with reference to Figure 18) in groove 104, while will the lens 110 of having chance with are with to push (with reference to Figure 19) to lens holder 100.Thus, edge 114 is fixed in groove 104 via bonding agent 106.
Patent documentation 1: specially permit No. 4451859 publication
Patent documentation 2: Beneficial 7-41818 publication
But, groove 104 due to width narrower, so there is such problem: if the coating amount of bonding agent 106 likely spills into significant surface 112 side of lens 110 more at most and made dirty by the significant surface 112 of lens 110 when bonding.In addition, if make coating amount tail off to do not made dirty by the significant surface 112 of lens 110, then bonding strength declines and easily peels off, and according to circumstances, has the problem that lens 110 come off.
Summary of the invention
The present invention makes in view of the above problems, its objective is that to provide a kind of transparent member higher and inhibit the dirty optics of the significant surface of transparent member and the manufacture method of this optics to the bonding strength of holder.
Optics of the present invention, the holder that there is transparent member and above-mentioned transparent member is fixed, it is characterized in that, above-mentioned holder has transparent member maintaining part, and described transparent member maintaining part has opening, the groove that formed along above-mentioned opening and the bonding agent injection unit formed toward the outer side from a part for above-mentioned groove; Its peripheral part of above-mentioned transparent member is fixed in above-mentioned groove via bonding agent.
According to said structure, because above-mentioned holder has the bonding agent injection unit formed toward the outer side from a part for above-mentioned groove, so when above-mentioned transparent member is bonding with above-mentioned holder, as long as injected to above-mentioned bonding agent injection unit by bonding agent, just above-mentioned bonding agent can be spread all between above-mentioned transparent member and above-mentioned groove by capillarity.As a result, bonding strength can be made to uprise.In addition, owing to injecting bonding agent to above-mentioned bonding agent injection unit, by capillarity, above-mentioned bonding agent is spread all between above-mentioned transparent member and above-mentioned groove, so easily make its injection rate IR be quantitative.As a result, bonding agent overflows and the possibility of being made dirty by the significant surface of transparent member is less.And then as long as owing to injecting bonding agent to bonding agent injection unit, above-mentioned bonding agent just spreads all between above-mentioned transparent member and above-mentioned groove, so operating efficiency improves.
Like this, according to said structure, transparent member can be provided higher and inhibit the dirty optics of the significant surface of transparent member to the bonding strength of holder.
In the structure of the invention described above, preferably, the bottom surface of above-mentioned groove and the bottom surface of above-mentioned bonding agent injection unit in the same plane.If the bottom surface of the bottom surface of above-mentioned groove and above-mentioned bonding agent injection unit is in the same plane, then bonding agent is easily made to be spread all between above-mentioned transparent member and above-mentioned groove by capillarity.In addition, if the bottom surface of the bottom surface of above-mentioned groove and above-mentioned bonding agent injection unit is in the same plane, then this holder is easily manufactured.
In the structure of the invention described above, preferably, above-mentioned transparent member is with the lens of having chance with, and the lens that this band is had chance with have lens and are positioned at the periphery of said lens and have the edge of the plane opposed with the above-mentioned groove of above-mentioned holder.If above-mentioned transparent member is the lens that above-mentioned band is had chance with, then because edge is opposed with groove, so can be configured to make the optical axis of lens to be certain orientation.In addition, if above-mentioned transparent member is the lens that above-mentioned band is had chance with, then above-mentioned bonding agent can be made more uniformly to spread all between above-mentioned groove and above-mentioned edge.As a result, bonding strength can be made to improve further.
In addition, in the structure of foregoing invention, also can be that above-mentioned holder has multiple above-mentioned transparent member maintaining part; In multiple above-mentioned transparent member maintaining part, be fixed wtih 1 transparent member respectively.If holder has multiple transparent member maintaining part, is fixed wtih 1 transparent member respectively in multiple above-mentioned transparent member maintaining part, then can with the position between the cutting precision of holder decision lens.
In addition, the manufacture method of optics of the present invention, is characterized in that, comprising: the operation preparing transparent member; Prepare the operation of holder, this holder possesses transparent member maintaining part, and this transparent member maintaining part has opening, the groove that formed along above-mentioned opening and the bonding agent injection unit formed toward the outer side from a part for above-mentioned groove; Be configured to make the peripheral part of above-mentioned transparent member to be connected to operation on the above-mentioned groove of above-mentioned holder; And inject bonding agent to above-mentioned bonding agent injection unit, made by capillarity above-mentioned bonding agent spread all over operation between above-mentioned transparent member and above-mentioned groove.
According to said structure, owing to injecting bonding agent to above-mentioned bonding agent injection unit, by capillarity, above-mentioned bonding agent is spread all between above-mentioned transparent member and above-mentioned groove, so the bonding strength of transparent member and holder can be made to uprise.In addition, owing to injecting bonding agent to above-mentioned bonding agent injection unit, by capillarity, above-mentioned bonding agent is spread all between above-mentioned transparent member and above-mentioned groove, so easily make its injection rate IR be quantitative.As a result, bonding agent overflows and the possibility that the significant surface of transparent member is made dirty is diminished.And then as long as owing to injecting bonding agent to bonding agent injection unit, above-mentioned bonding agent just spreads all between above-mentioned transparent member and above-mentioned groove, so operating efficiency improves.
Like this, according to said structure, transparent member can be manufactured higher and inhibit the dirty optics of the significant surface of transparent member to the bonding strength of holder.
According to the manufacture method of optics of the present invention and optics, a kind of transparent member can be provided higher and inhibit the dirty optics of the significant surface of transparent member to the bonding strength of holder.
Accompanying drawing explanation
Fig. 1 is the stereographic map of the optics schematically represented about present embodiment.
In Fig. 2, (a) is the planimetric map of the optics shown in Fig. 1, and in Fig. 2, (b) is its front view, and in Fig. 2, (c) is its side view, and in Fig. 2, (d) is its upward view.
Fig. 3 is the A-A cut-open view of (d) in Fig. 2.
Fig. 4 is used to the schematic cross-section of the manufacture method of the optics that an embodiment for the present invention is described.
Fig. 5 is used to the schematic cross-section of the manufacture method of the optics that an embodiment for the present invention is described.
Fig. 6 is used to the schematic cross-section of the manufacture method of the optics that an embodiment for the present invention is described.
Fig. 7 is used to the floor map of the manufacture method of the optics that an embodiment for the present invention is described.
Fig. 8 is the magnified partial view in the B portion of Fig. 6.
Fig. 9 is the magnified partial view in the C portion of Fig. 6.
Figure 10 schematically represents the side cross-sectional view used about the LED illumination device of the optics of present embodiment.
Figure 11 is the side cross-sectional view of the holder schematically represented about other embodiments.
Figure 12 is the side cross-sectional view of the holder schematically represented about other embodiments.
Figure 13 is the side cross-sectional view of the holder schematically represented about other embodiments.
Figure 14 is the side cross-sectional view of the holder schematically represented about other embodiments.
In Figure 15, (a) is the upward view of the holder schematically represented about other embodiments, and (b) is its D-D cut-open view.
In Figure 16, (a) is the planimetric map representing the holder used in embodiment 1, and (b) is the side sectional view of the optics of one embodiment 1.
In Figure 17, (a) is used to the representative side section view of the lens fixing means illustrated in the past, and in Figure 17, (b) is its planimetric map.
Figure 18 is used to the representative side section view of the lens fixing means illustrated in the past.
Figure 19 is used to the representative side section view of the lens fixing means illustrated in the past.
Drawing reference numeral explanation
10 opticses;
12,82 the lens of having chance with are with;
12a lens;
12b edge;
20,60,62,64,66,68,80 holders;
21 transparent member maintaining parts;
22 openings;
24 grooves;
26 recesses;
28,61,63,65,67,69 bonding agent injection units;
30 point gum machines;
22 bonding agents;
50 LED illumination devices;
52 is heat sink;
54 LED-baseplate;
56 LED element.
Embodiment
Below, be described with reference to the optics of accompanying drawing to an embodiment for the present invention.In addition, the size ratio of drawing might not be consistent with the size ratio of reality in the various figures.
Fig. 1 is the stereographic map of the optics schematically represented about present embodiment.In Fig. 2, (a) is the planimetric map of the optics shown in Fig. 1, and in Fig. 2, (b) is its front view, and in Fig. 2, (c) is its side view, and in Fig. 2, (d) is its upward view.Fig. 3 is the A-A cut-open view of (d) in Fig. 2.
As shown in Figure 1, optics 10 has the lens 12 be with and had chance with and the holder 20 that will the lens 12 of having chance with are with to fix.The lens 12 of having chance with are with to be equivalent to transparent member of the present invention.In addition; in the present embodiment; the situation that transparent member of the present invention is the lens that band is had chance with is described; but as long as transparent member of the present invention makes the parts of light (comprising visible light, ultraviolet light, infrared light) transmission to a certain degree; be not limited to this example, such as, can enumerate the parts (lid) being protected from dirty etc. tabular for the parts (such as LED element or LD element etc.) in the light path of the light by being in transmission transparent member.
As shown in (d) in Fig. 2 and Fig. 3, be with the edge 12b that the lens 12 of having chance with have lens 12a and form with lens 12a on the periphery of lens 12a.Edge 12b has the shape of the round-shaped tabular in a circle larger than the profile of lens 12a when viewed in plan, have the plane opposed with the groove 24 of holder 20.In the present embodiment, because transparent member of the present invention is with the lens 12 of having chance with, so edge 12b is opposed with groove 24.Therefore, it is possible to be certain orientation with the optical axis of lens 12a, mode is configured on holder 20.In addition, because edge 12b is opposed abreast with groove 24, so bonding agent can be made more uniformly to spread all between groove 24 and edge 12b.
Diameter as lens 12a is not specially limited, but preferably less in a way size, such as can enumerate below 15mm.If the diameter of lens is sizes less in a way, then the width of groove also needs to narrow.Therefore, in the method in the past to the direct adhesive-applying of groove, there is the problem of the bonding strength decline made dirty by the significant surface of lens or cause because coating amount is less.In the present embodiment, when being the such as the following less size of 15mm when making the diameter of lens 12a, transparent member can be provided higher and inhibit the dirty optics 10 of the significant surface of transparent member to the bonding strength of holder.
In addition, if the diameter of lens is larger sizes, then groove also can become large with it pro rata, even if by direct coating method in the past, also can take into account the dirty suppression of the significant surface to the bonding strength of holder and transparent member.That is, even the present invention also can take into account in the dirty suppression this point of the significant surface of the bonding strength of holder and transparent member excellent in the situation that the diameter of lens is less especially.
As shown in (d) in (a) in Fig. 1 and Fig. 2 ~ Fig. 2, holder 20 is the form of the tabular in the horizontal with long limit, longitudinally central at the back side of holder 20, is formed with recess 26 across transverse integral.In addition, in recess 26, also 4 openings 22 (with reference to (d) and Fig. 4 in Fig. 2) are provided with longitudinally central with horizontal row.
In addition, on the back side of holder 20, the periphery along each opening 22 is formed with groove 24 (with reference to (d), Fig. 3, Fig. 4 in Fig. 2) respectively.The width of the degree that the edge 12b that groove 24 has the lens 12 of band edge is fitted together to.
Be not particularly limited as the width of edge 12 and the width of groove 24, preferably less in a way, such as can enumerate below 2mm.
When the width of edge and the width of groove narrower be the degree of below 2mm, by the method in the past to the direct adhesive-applying of groove, there is the problem that the bonding strength being made dirty by the significant surface of lens or cause because coating amount is less declines.In the present embodiment, when make the width of edge 12 and. the width of groove 24 narrower for 2mm such as the following time, transparent member can be provided higher and inhibit the dirty optics 10 of the significant surface of transparent member to the bonding strength of holder.
In addition, if the wider width of the width of edge and groove, then also can be taken into account the dirty suppression of the significant surface to the bonding strength of holder and transparent member by direct coating method in the past.That is, even the present invention also can take into account in the dirty suppression this point of the significant surface of the bonding strength of holder and transparent member excellent at the width of edge and the less situation of the width of groove especially.
On groove 24, be formed with bonding agent injection unit 28 toward the outer side from its part.Bonding agent injection unit 28 extends with certain width 28a (with reference to (d) Fig. 2) toward the outer side from groove 24, and end is circular shape.Width 28a forms to obtain a circle larger than the thickness of point gum machine when being injected by bonding agent, and the circular shape of end is set as larger than the periphery of point gum machine.
Owing to being formed with bonding agent injection unit 28, so in the manufacture of optics 10, when the lens 12 of being had chance with by band are bonding with holder 20, if inject bonding agent 32 (with reference to Fig. 6) to bonding agent injection unit 28, then by capillarity, bonding agent can be made to spread all over be with and have chance with between lens 12 and groove 24.As a result, bonding strength can be made to uprise.In addition, owing to injecting bonding agent to bonding agent injection unit 28, by capillarity, bonding agent is spread all over and be with between the lens 12 of having chance with and groove 24, so easily make its injection rate IR be quantitative.As a result, bonding agent overflows and by less for the possibility being with the significant surface of lens 12 of having chance with to make dirty.And then, if inject bonding agent to bonding agent injection unit 28, be then with between the lens 12 of having chance with and groove 24 because bonding agent spreads all over, so operating efficiency improves.
As shown in Figure 3, in bonding agent injection unit 28, spread all over by capillarity and be with the remaining bonding agent 32 after between the lens 12 of having chance with and groove 24 to be hardened.
In addition, in the present embodiment, the bottom surface of groove 24 and the bottom surface of bonding agent injection unit 28 in the same plane.Due to the bottom surface of groove 24 and the bottom surface of bonding agent injection unit 28 in the same plane, so easily make bonding agent by capillarity spread all over be with and have chance with between the edge 12b of lens 12 and groove 24.In addition, due to also jump can not formed between the bottom surface of groove 24 and the bottom surface of bonding agent injection unit 28, so easily manufacture.
On holder 20, be formed with 4 transparent member maintaining parts 21 (with reference to (d) in Fig. 2) with opening 22, groove 24 and bonding agent injection unit 28.Each transparent member maintaining part 21 is fixed wtih lens 12 that 1 band is had chance with respectively.The lens of having chance with are with, so can with the position between the cutting precision of holder decision lens owing to being fixed wtih 4 (multiple) on holder 20.
In addition, in the present embodiment, to being formed with 4 transparent member maintaining parts 21 on holder 20, in each transparent member maintaining part 21, be fixed wtih the situation of the lens 12 that 1 band is had chance with respectively be described.But in the present invention, the quantity of transparent member maintaining part is not specially limited.Can be 1, also can be two or more.
In the above-described embodiment, the situation 1 transparent member maintaining part 21 being defined to 1 (1 place) bonding agent injection unit 28 is described.But, be not limited to this example in the present invention, arrange multiple also harmless in the scope not violating purport of the present invention.Such as, the spreading all over of the bonding agent make the situation of the time shorten from adhesive applicating to thermmohardening etc. in the higher situation of the viscosity of bonding agent used or want, estimating to be brought by capillarity slows, also can arrange multiple.But, owing to bonding agent being made to spread all over fully by capillarity, as long as so usually have 1 bonding agent injection unit just passable to 1 transparent member maintaining part.
In addition, the present inventors also consider, by not being bonding agent injection unit formed toward the outer side but the method formed toward the outer side from the complete cycle of groove from a part for groove, also the significant surface of transparent member can not being made dirty and keep bonding strength higher.
But, if form bonding agent injection unit toward the outer side from the complete cycle of groove, then when being configured on holder by transparent member, there is play (gap) in the scope being formed with bonding agent injection unit, is difficult to the mode fetch bit consistent with the center of transparent member of the center of opening.Thus, the present inventors when the bottom surface of groove 24 and the bottom surface of bonding agent injection unit 28 in the same plane, the part of bonding agent injection unit from groove is formed toward the outer side.
Above, the structure of optics 10 is illustrated.
Then, the manufacture method of optics 10 is described.
About the manufacture method of the optics 10 of present embodiment at least comprises: prepare the operation being with the lens 12 of having chance with; The groove 24 prepare to have the operation of the holder 20 of transparent member maintaining part 21, this transparent member maintaining part 21 has opening 22, being formed along opening 22 and the bonding agent injection unit 28 formed toward the outer side from a part for groove 24; The peripheral part (edge 12b) being configured the lens 12 that band is had chance with is connected to the operation of the groove 24 of holder 20; And inject bonding agent to bonding agent injection unit 28, made by capillarity above-mentioned bonding agent spread all over the operation be with between the lens 12 of having chance with and groove 24.
Fig. 4 ~ Fig. 6 is used to the schematic cross-section of the manufacture method of the optics that an embodiment for the present invention is described.Fig. 7 is used to the floor map of the manufacture method of the optics that an embodiment for the present invention is described.
[the lens preparatory process that band is had chance with]
In the manufacture method of the optics about present embodiment, first, prepare to be with the lens 12 of having chance with.
[holder preparatory process]
On the other hand, as shown in Figure 4, holder 20 is prepared.Holder 20 as described above, has 4 transparent member maintaining parts 21, and this transparent member maintaining part 21 has opening 22, the groove 24 that formed along opening 22 and the bonding agent injection unit 28 that formed toward the outer side from a part for groove 24.
[arrangement step]
Then, as shown in Figure 5, be configured, the peripheral part (edge 12b) of the lens 12 of having chance with to make band is connected on the groove 24 of holder 20.Specifically, from the lens 12 that the dorsal part of holder 20 is had chance with towards opening 22 configure band.Now, lens 12a side is configured towards holder 20 side.Thus, edge 12b is embedded in groove 24.
[bonding agent injection process]
Then, as shown in Figure 6, point gum machine 30 is used to inject bonding agent 32 to bonding agent injection unit 28.Thus, by capillarity, bonding agent 32 is spread all over and be with (with reference to Fig. 7) between the lens 12 of having chance with and groove 24.
Below this point is described.
Fig. 8 is the magnified partial view in the B portion of Fig. 6, and Fig. 9 is the magnified partial view in the C portion of Fig. 6.As can be seen from figures 8 and 9, when injecting bonding agent 32 to bonding agent injection unit 28, then by capillarity, bonding agent 32 spread all over be with the lens 12 of having chance with and groove 24 as in the gap 29 in narrower gap.And then, although little bonding agent 32 enters into the gap 29a of the side of groove 24 and the side of lens 12a, due to this gap 29a along with from gap 29 away from and expand sharp, so spreading all over of the bonding agent 32 brought by capillarity is less likely to occur.Therefore, the infiltration of bonding agent 32 stops under the state entering into slightly gap 29a.Thus, bonding agent 31 spreads all over rightly and is with in the gap 29 of the lens 12 and groove 24 of having chance with.Thus, bonding agent 32 overflows and by less for the possibility being with the significant surface of lens 12 of having chance with to make dirty.In addition, owing to fully guaranteeing bond area, so realize the raising of bonding strength.
In addition, the injection of bonding agent 32 preferably by be with the lens 12 of having chance with relative to holder 20 with certain state trying hard to recommend pressure under carry out, even if fully narrow with the degree gap 29 making capillarity manifest.
As bonding agent 32, as long as there is the viscosity of the degree that can produce capillarity upon hardening, can bonding on holder 20 by being with the lens 12 of having chance with by sclerosis, just be not particularly limited, such as, can adopt in the past known silicon class bonding agent or epoxy resin bonding agent.
[adhesive hardens operation]
Then, heat etc. as required, make adhesive hardens.Thereby, it is possible to will the lens 12 of having chance be with to be fixed firmly on holder 20.
Above, an example of the manufacture method of optics 10 is described.
Then, an example of optics 10 is described.
Figure 10 schematically represents the side cross-sectional view used about the LED illumination device of the optics of present embodiment.
The optics 10 that LED illumination device 50 has heat sink (heat sink, heating radiator) 52, is located at the LED-baseplate 54 on heat sink 52 and arranges in the mode that the LED element 56 LED-baseplate 54 had covers.The lens 12 that band is had chance with as described above, are fixed on holder 20 well by positional precision.Thus, if by holder 20 to be arranged on the position of regulation with the position relationship of LED-baseplate 54, then the optical axis of the light sent from LED element 56 is consistent with being with the optical axis of the lens 12 of having chance with.
Like this, according to the LED illumination device 50 using optics 10, the optical axis of the lens 12 that the optical axis due to the light sent from LED element 56 is had chance with band is consistent accurately, so can provide high performance LED illumination device.
In addition, in the above example, to using the LED illumination device 50 of LED element 56 to be illustrated, but optics of the present invention can be used in various light irradiation device.Such as, also can replace LED element 56 and use LD element, also can use EL (E1ectro luminescence) element.
In the above-described embodiment, the bottom surface of groove 24 and the bottom surface of bonding agent injection unit 28 situation in the same plane is illustrated.But the shape of bonding agent injection unit of the present invention is not limited to this example.Below, other embodiments different from the embodiment described above to the shape of bonding agent injection unit are described..
In addition, the shape of the holder below using Figure 11 ~ Figure 15 to illustrate only bonding agent injection unit is different from the embodiment described above, and other point is common.So the explanation of common part is omitted, and is only described different parts.In addition, identical label is given for the part common with holder 10.
Figure 11 ~ Figure 14 is the side cross-sectional view of the holder schematically represented about other embodiments.In Figure 15, (a) is the upward view of the holder schematically represented about other embodiments, and in Figure 15, (b) is its D-D cut-open view.
Holder 60 shown in Figure 11 has the bonding agent injection unit 61 of the depth as shallow of depth ratio groove 24.According to holder 60, due to the depth as shallow of the depth ratio groove 24 of bonding agent injection unit 61, if so inject bonding agent to bonding agent injection unit 61, then make bonding agent spread all over from higher position and be with between the lens of having chance with and groove 24.Owing to being spread all over from higher position by capillarity, so can bonding agent be made more reliably to spread all over.If the type, then can be bonding under the state with lens position function, so bonding agent injection unit also can be in the circumferential universe of groove 24.
Holder 62 shown in Figure 12 has the bonding agent injection unit 63 tilted in the mode deepened towards groove 24 direction.According to holder 62, because the mode deepened towards groove 24 direction with the degree of depth of bonding agent injection unit 63 tilts, be with between the lens of having chance with and groove 24 so the bonding agent of injection can be made to spread all over efficiently.
Holder 64 shown in Figure 13 has with the bonding agent injection unit 65 tilted along with the mode deepened away from groove 24.In addition, the holder 66 shown in Figure 14 has the dark bonding agent injection unit 67 of the degree of depth of depth ratio groove 24.If the holder shown in Figure 13 64 or the holder shown in Figure 14 66, also can provide and be with the lens of having chance with higher and inhibit the dirty optics of the significant surface being with the lens of having chance with to the bonding strength of holder.
In Figure 15, in (a) and Figure 15, the holder 68 shown in (b) has bonding agent injection unit 69, and this bonding agent injection unit 69 is formed with V groove 69a relative in groove 24 vertical direction on bottom surface.According to holder 68, owing to being formed with V groove 69a in bonding agent injection unit 69, so particularly when the injection rate IR of bonding agent is less, bonding agent flows into V groove 69a, bonding agent can be spread all over via V groove 69a and be with between the lens of having chance with and groove 24.In addition, bonding agent injection unit forms groove as described above, groove is not limited to V groove, and also can be such as R groove, the shape of groove be specially limited.
In addition, beyond above-mentioned, the shape of bonding agent injection unit can suitably design, as long as can carry out the shape of the injection of bonding agent with point gum machine, also can be quadrilateral or triangle in viewed in plan.
[embodiment]
Below, the preferred embodiment of this invention is illustratively described in detail.
(embodiment 1)
(manufacture of optics)
In Figure 16, (a) is the planimetric map representing the holder used in embodiment 1, and in Figure 16, (b) is the side sectional view of the optics of one embodiment 1.
First, the lens 82 that in the holder 80 shown in (a) and Figure 16, the band shown in (b) is had chance with in Figure 16 are prepared.Each size of the lens 82 that holder 80 and band are had chance with is as described below.
< holder >
Opening: the circle of diameter 6mm
The width of groove: 0.5mm
The degree of depth of groove: 0.5mm
Bonding agent injection unit: centered by the position of the center 4mm apart from opening, is formed by carrying out spot-facing (Japanese: ざ ぐ り) processing with diameter 1.5mm, degree of depth 0.5mm
Material: aluminium (having completed white pellumina process (Japanese: white ア Le マ イ ト process))
In addition, the bottom surface of groove and the bottom surface of bonding agent injection unit in the same plane.
< is with the lens > had chance with
The diameter of lens: 5.8mm
R (radius-of-curvature): the 3mm of lens
The diameter of edge: 7mm
The thickness of edge: 0.5mm
Then, will the edge of the lens 82 of having chance be with to be configured in the groove of holder 80 in the mode abutted.
Then, use point gum machine to be injected into by bonding agent and inject bonding agent injection unit.The external diameter of the nozzle of point gum machine uses the size of 0.5 ~ 1mm.In bonding agent, use silicon class bonding agent (viscosity under room temperature (23 DEG C): 600mPas), injection rate IR is 1mg.Thus, by capillarity, bonding agent is spread all over to be with between the lens of having chance with and the groove of holder.
Then, under the state that the lens of being had chance with by band and holder fixture are fixed, heat 1 hour at 100 DEG C, then heat 2 hours at 150 DEG C, make adhesive hardens.By more than, produce optics.
(ocular estimate)
By the optics that obtains by visualization outward appearance, the significant surface of lens there is no the attachment of bonding agent.
(bonding strength evaluation)
Use thrust meter (push gauge), the lens of being had chance with by the band of the optics obtained vertically push until peel off from lens side, read its maximal value.Result is 12Nm.In addition, in the optics (optics produced by the manufacture method using Figure 17 ~ Figure 19 to illustrate) in the past of comparable size, tested by same bonding strength, bonding strength is about 9Nm, so the optics of known the present embodiment bonding strength compared with optics in the past improves.
Above, embodiments of the present invention and embodiment are illustrated, but the present invention is not limited to above-mentioned example, suitably can carries out design alteration in the scope meeting structure of the present invention.
Claims (5)
1. an optics, has transparent member and by holder fixing for above-mentioned transparent member, it is characterized in that,
Above-mentioned holder has transparent member maintaining part, and this transparent member maintaining part has opening, the groove that formed along above-mentioned opening and the bonding agent injection unit formed toward the outer side from a part for above-mentioned groove;
The peripheral part of above-mentioned transparent member is fixed in above-mentioned groove via bonding agent.
2. optics as claimed in claim 1, is characterized in that,
The bottom surface of above-mentioned groove and the bottom surface of above-mentioned bonding agent injection unit in the same plane.
3. optics as claimed in claim 1 or 2, is characterized in that,
Above-mentioned transparent member is with the lens of having chance with, and the lens that this band is had chance with have lens and edge, and this edge is positioned at the periphery of said lens and has the plane opposed with the above-mentioned groove of above-mentioned holder.
4. the optics according to any one of claims 1 to 3, is characterized in that,
Above-mentioned holder has multiple above-mentioned transparent member maintaining part;
In multiple above-mentioned transparent member maintaining part, be fixed wtih 1 transparent member respectively.
5. a manufacture method for optics, is the manufacture method of the optics according to any one of Claims 1 to 4, it is characterized in that, comprising:
Prepare the operation of transparent member;
Prepare the operation of holder, this holder has transparent member maintaining part, and this transparent member maintaining part has opening, the groove that formed along above-mentioned opening and the bonding agent injection unit formed toward the outer side from a part for above-mentioned groove;
Be configured to make the peripheral part of above-mentioned transparent member be connected to the operation of the above-mentioned groove of above-mentioned holder; And
Inject bonding agent to above-mentioned bonding agent injection unit, made by capillarity above-mentioned bonding agent spread all over operation between above-mentioned transparent member and above-mentioned groove.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014064298A JP2015187624A (en) | 2014-03-26 | 2014-03-26 | Optical member and manufacturing method thereof |
| JP2014-064298 | 2014-03-26 |
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| CN104950416A true CN104950416A (en) | 2015-09-30 |
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| US20210080680A1 (en) * | 2019-09-12 | 2021-03-18 | Apple Inc. | Lens Mounting Systems for Electronic Devices |
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| DE102020123964A1 (en) | 2019-09-27 | 2021-04-08 | Nichia Corporation | Method for producing a lighting device |
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| JP2015187624A (en) | 2015-10-29 |
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