JPH044126B2 - - Google Patents
Info
- Publication number
- JPH044126B2 JPH044126B2 JP15572083A JP15572083A JPH044126B2 JP H044126 B2 JPH044126 B2 JP H044126B2 JP 15572083 A JP15572083 A JP 15572083A JP 15572083 A JP15572083 A JP 15572083A JP H044126 B2 JPH044126 B2 JP H044126B2
- Authority
- JP
- Japan
- Prior art keywords
- gold
- lens array
- hole
- piece
- template
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 48
- 239000010931 gold Substances 0.000 claims description 48
- 229910052737 gold Inorganic materials 0.000 claims description 48
- 238000000465 moulding Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 229920003002 synthetic resin Polymers 0.000 claims description 6
- 239000000057 synthetic resin Substances 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 description 13
- 239000004830 Super Glue Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- FGBJXOREULPLGL-UHFFFAOYSA-N ethyl cyanoacrylate Chemical compound CCOC(=O)C(=C)C#N FGBJXOREULPLGL-UHFFFAOYSA-N 0.000 description 2
- 229940053009 ethyl cyanoacrylate Drugs 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
技術分野
この発明は、結像面に均一な合成像を形成する
結像装置等に用いられるレンズアレイを成形する
ための金型の組付方法に係り、より詳細には光軸
の傾きの小さい、即ち偏心の少ないレンズアレイ
を成形可能とするレンズアレイ成形金型の組付方
法に関するものである。DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a method for assembling a mold for molding a lens array used in an imaging device that forms a uniform composite image on an imaging surface. The present invention relates to a method for assembling a lens array molding die that enables molding of a lens array with a small optical axis inclination, that is, with little eccentricity.
従来技術
レンズアレイ成形金型は、一般的に所定配列で
それぞれ貫通孔が形成された上下の型板と、一端
面に凹球面を有して柱状を呈した複数の金駒とか
らなり、各金駒をその凹球面同士が対向するよう
に上下の型板の貫通孔のそれぞれに組み付けられ
るものである。そして、上下の型板および上下の
金駒によつて形成されたキヤビテイ内に合成樹脂
を流し込み、硬化させて第１図に示すようなレン
ズアレイ１を成形するものである。１ａはレンズ
部である。Prior Art A lens array mold generally consists of upper and lower mold plates each having through-holes formed in a predetermined arrangement, and a plurality of columnar gold pieces with a concave spherical surface on one end surface. The gold pieces are assembled into the respective through holes of the upper and lower templates so that their concave spherical surfaces face each other. Then, synthetic resin is poured into the cavity formed by the upper and lower templates and the upper and lower gold pieces, and is cured to form the lens array 1 as shown in FIG. 1. 1a is a lens portion.
このような成形金型の組付、つまりそれぞれの
貫通孔への各金駒の組付については、従来より金
駒螺子止め法、金駒整列接着法など種々の方法が
採られていた。 Conventionally, various methods have been used for assembling such molding dies, that is, assembling each metal piece into each through hole, such as a metal piece screwing method and a metal piece alignment adhesion method.
しかしながら、これらの従来の組付方法にあつ
ては、型板および型板の貫通孔に挿着される金駒
の寸法精度のバラツキにより金駒の偏心、即ちレ
ンズアレイ１のレンズ部１ａを形成することとな
る金駒の凹球面の光軸が傾いてしまつていた。 However, in these conventional assembly methods, due to variations in the dimensional accuracy of the template and the gold pieces inserted into the through holes of the template, the eccentricity of the gold pieces, that is, the formation of the lens portion 1a of the lens array 1. The optical axis of the concave spherical surface of the gold piece was tilted.
因みに、金駒が偏心してしまうことの具体的な
原因として次の４つが考えられる。 Incidentally, there are four possible reasons why gold pieces become eccentric:
すなわち、金駒自体の偏心：第２図において
凹球面２ａの光軸が金駒２の偏心に対しθ1°傾斜
すること、貫通孔３ａの径が金駒２の径よりも
大きいため凹球面２ａの光軸及び金駒２の軸心が
貫通孔３ａの軸心に対してθ2°傾斜すること、
第３図において各貫通孔３ａの軸心がθ3°狂う、
いわゆる孔の倒れによること、第４図におい
て、貫通孔３ａの整列度がΔy狂うことにより型
板３の幅方向に金駒２の軸心及び凹球面２ａの光
軸が位置ずれすること、である。 In other words, the eccentricity of the gold piece itself: In Fig. 2, the optical axis of the concave spherical surface 2a is inclined by θ 1 ° with respect to the eccentricity of the gold piece 2, and the diameter of the through hole 3a is larger than the diameter of the gold piece 2, so the concave spherical surface The optical axis of 2a and the axial center of the gold piece 2 are inclined by θ 2 degrees with respect to the axial center of the through hole 3a,
In FIG. 3, the axis of each through hole 3a is deviated by θ 3 degrees,
This is due to the so-called collapse of the hole, and in FIG. 4, the axis of the gold piece 2 and the optical axis of the concave spherical surface 2a are misaligned in the width direction of the template 3 due to the misalignment of the through holes 3a by Δy. be.
そして、従来のレンズアレイ成形金型の組付方
法は、上記４つの具体的な偏心原因を全て解消す
るものではないために、金駒２が偏心した状態で
型板３に組み付けられてしまうとともにこのよう
な成形金型で成形されたレンズアレイ１のレンズ
部１ａの光軸にも大きな傾きが生じてしまい、ひ
いてはレンズアレイ１の露光むらを発生させるこ
ととなつていた。 Since the conventional method of assembling a lens array mold does not eliminate all of the above four specific causes of eccentricity, the gold piece 2 is assembled to the template 3 in an eccentric state. A large inclination also occurs in the optical axis of the lens portion 1a of the lens array 1 molded using such a molding die, which in turn causes uneven exposure of the lens array 1.
目 的
この発明は、このような従来の問題点に鑑みて
なされたもので、上記偏心原因を解消して偏心の
ない状態で金駒を型板の貫通孔に組み付けるレン
ズアレイ成形金型の組付方法を提供することを目
的としている。Purpose This invention was made in view of such conventional problems, and is an assembly of a lens array mold that eliminates the above-mentioned cause of eccentricity and assembles a metal piece into a through hole of a template without eccentricity. The purpose is to provide a method for attaching.
構 成 以下、この発明を図面に基づいて説明する。composition The present invention will be explained below based on the drawings.
第５図〜第７図は、この発明の一実施例により
組み付けられる、又は組み付けられたレンズアレ
イ成形金型を示す図である。 FIGS. 5 to 7 are diagrams showing a lens array molding die assembled or assembled according to an embodiment of the present invention.
まず、このレンズアレイ成形金型４の構成を説
明すると、このレンズアレイ成形金型４は、上型
４ａと下型４ｂとから構成され、さらに両型４
ａ，４ｂはともに所定配列で貫通孔５ａがそれぞ
れ形成された型板５と、柱状を呈したその一端面
にレンズアレイ１のレンズ部１ａを形成すること
となる凹球面１０ａを有する複数の金駒１０とか
らなつている。なお、貫通孔５ａの径は金駒１０
の径よりも幾分大き目に形成されている。上下の
型板５には、バツクプレート６がそれぞれ組み込
まれており、バツクプレート６には、貫通孔５ａ
に対応して貫通孔５ａ内に挿入された金駒１０を
固定させるための螺子９が取り付けられている
（第７図参照）。７は型合わせされたレンズアレイ
成形金型４内に合成樹脂を注入するスプルー、８
はスプルー７から注入された合成樹脂を上下の型
４ａ，４ｂが型合せされた際に形成されるキヤビ
テイＣ内へ導くランナであり、１１，１２はそれ
ぞれ型合わせされたレンズアレイ成形金型４を押
厚する固定側型、移動側型である、
つぎに上記構成のレンズアレイ成形金型４の組
み付けについて説明する。 First, to explain the structure of this lens array molding die 4, this lens array molding die 4 is composed of an upper mold 4a and a lower mold 4b, and furthermore, both molds 4
a and 4b are templates 5 each having through holes 5a formed therein in a predetermined arrangement, and a plurality of gold plates each having a columnar shape and having a concave spherical surface 10a forming the lens portion 1a of the lens array 1 on one end surface thereof. It consists of 10 pieces. Note that the diameter of the through hole 5a is the same as the gold piece 10.
It is formed somewhat larger than the diameter of. A back plate 6 is incorporated in each of the upper and lower template plates 5, and the back plate 6 has a through hole 5a.
A screw 9 for fixing the gold piece 10 inserted into the through hole 5a is attached correspondingly (see FIG. 7). 7 is a sprue for injecting synthetic resin into the matched lens array mold 4;
11 and 12 are runners that guide the synthetic resin injected from the sprue 7 into the cavity C that is formed when the upper and lower molds 4a and 4b are combined, and 11 and 12 are the lens array molds 4 that have been combined, respectively. A fixed side mold and a movable side mold press the lens array mold 4. Next, the assembly of the lens array molding die 4 having the above configuration will be explained.
まず、各金駒１０の偏心方向を調べてその方向
を示すケガキ線を各金駒１０の側面に描き、レン
ズアレイ１の成形時のレンズ部１ａを整列させる
ため、レンズ部１ａとなる各貫通孔５ａの中心点
を結んだ中心線が表示されるように線を各貫通孔
５ａの壁面に描く。この線に前述したケガキ線を
合わせることにより偏心方向を型板５の長手方向
に揃えた状態で各金駒１０を貫通孔５ａにそれぞ
れ挿入し、予めバツクプレート６に取り付けられ
た螺子９により各金駒１０を貫通孔５ａ内で仮固
定させる。このとき、各金駒１０は型板５の長手
方向に綺麗に整列させられており、しかも各金駒
１０と各貫通孔５ａとのガタにより各金駒１０
は、多くはその軸心が各貫通孔５ａの軸心に対し
て傾斜している。したがつてしかる後に金駒自体
の偏心によつて凹球面１０ａの光軸が傾斜した各
金駒１０を各金駒１０の軸心を中心に回転させな
がら曲率偏心測定機を用いて各貫通孔５ａの軸心
に対する各金駒１０の軸心及び凹球面１０ａの光
軸の偏心（傾斜）を修正する。この偏心の修正が
完了した後、螺子９を締め、各金駒１０と各貫通
孔５ａとの隙間に例えばエチルシアノアクリレー
ト系接着剤１３などを充填する。ここに至り、各
金駒１０は、前述の回転修正によつてその凹球面
１０ａの光軸が傾斜することなく、しかも接着剤
１３により各金駒１０への貫通孔５ａ内でのガタ
が防止されて、型板５への各金駒１０が組み込ま
れて上下の型４ａ，４ｂが組み付けられることと
なる。 First, the eccentric direction of each gold piece 10 is checked, and a marking line indicating the direction is drawn on the side surface of each gold piece 10. In order to align the lens parts 1a during molding of the lens array 1, each through hole that will become the lens part 1a is drawn. A line is drawn on the wall surface of each through hole 5a so that the center line connecting the center points of the holes 5a is displayed. By aligning the above-mentioned marking line with this line, each gold piece 10 is inserted into the through hole 5a with the eccentric direction aligned with the longitudinal direction of the template 5, and each piece is tightened with the screw 9 attached to the back plate 6 in advance. The gold piece 10 is temporarily fixed within the through hole 5a. At this time, each gold piece 10 is neatly aligned in the longitudinal direction of the template 5, and due to the play between each gold piece 10 and each through hole 5a, each gold piece 10 is
In many cases, the axis thereof is inclined with respect to the axis of each through hole 5a. After that, each through hole is measured using a curvature eccentricity measuring machine while rotating each gold piece 10 whose optical axis of the concave spherical surface 10a is inclined due to the eccentricity of the gold piece itself, around the axis of each gold piece 10. The eccentricity (inclination) of the axial center of each gold piece 10 and the optical axis of the concave spherical surface 10a with respect to the axial center of the gold piece 5a is corrected. After this correction of eccentricity is completed, the screw 9 is tightened, and the gap between each gold piece 10 and each through hole 5a is filled with, for example, an ethyl cyanoacrylate adhesive 13. At this point, the optical axis of the concave spherical surface 10a of each gold piece 10 is not tilted due to the above-mentioned rotation correction, and the adhesive 13 prevents rattling within the through hole 5a of each gold piece 10. Then, each gold piece 10 is assembled into the mold plate 5, and the upper and lower molds 4a, 4b are assembled.
このようにして組み付けられた上下の型４ａ，
４ｂを、各金駒１０の凹球面１０ａ同士が互いに
対向するようにそれぞれ固定側型１１、移動側型
１２に取り付けて両型４ａ，４ｂの型合せをす
る。そして、両型４ａ，４ｂで形成されたキヤビ
テイＣ内へ合成樹脂を流し込んで硬化させると、
レンズアレイ１が成形されることとなる。このよ
うに、上記金型４に成形されたレンズアレイ１
は、その各レンズ部１ａの光軸が傾くことなく長
手方向に綺麗に整列させられている。仮に上下に
対応するレンズ部１ａ同士がレンズアレイ１の長
手方向にミクロン単位で多少ズレていても、露光
される部分がレンズアレイ１の長手方向に沿つて
移動するだけであつて、露光むらや照度むらは生
じない。 The upper and lower molds 4a assembled in this way,
4b is attached to the stationary mold 11 and the movable mold 12, respectively, so that the concave spherical surfaces 10a of each gold piece 10 face each other, and the molds 4a and 4b are matched. Then, when synthetic resin is poured into the cavity C formed by both molds 4a and 4b and hardened,
Lens array 1 will be molded. In this way, the lens array 1 molded in the mold 4 is
The optical axis of each lens portion 1a is neatly aligned in the longitudinal direction without being tilted. Even if the vertically corresponding lens portions 1a are slightly shifted in the longitudinal direction of the lens array 1 by microns, the exposed portion will simply move along the longitudinal direction of the lens array 1, and uneven exposure will occur. No uneven illuminance occurs.
なお、各金駒１０は型板５の各貫通孔５ａ内に
螺子９により螺着されるとともにエチルシアノア
クリレート系接着剤１３などで接着されていれる
ので、レンズアレイ１の成形時に合成樹脂の圧力
により各金駒１０は動かされて凹球面１０ａの光
軸が傾斜させられることはない。 In addition, since each gold piece 10 is screwed into each through hole 5a of the template 5 with a screw 9 and bonded with an ethyl cyanoacrylate adhesive 13, the pressure of the synthetic resin during molding of the lens array 1 is reduced. Therefore, each gold piece 10 is not moved and the optical axis of the concave spherical surface 10a is not tilted.
効 果
以上、説明してきたように、この発明によれ
ば、金駒の偏心方向を型板の長手方向に揃え、か
つ整列された状態で各金駒を型板の貫通孔に挿入
して貫通孔内に螺子で螺合させて仮止めし、貫通
孔の軸心に対しそれぞれ傾斜させられた各金駒を
金駒の軸心を中心に回転させながら各金駒の偏心
を修正し、全ての金駒とそれぞれの貫通孔とのク
リアランスに接着剤を充填することにより各金駒
を型板に固定するレンズアレイ成形金型の組付方
法としたため、金駒の凹球面の光軸が傾くことな
くこのレンズアレイ成形金型を組み付けることが
できる。したがつて、このレンズアレイ成形金型
を用いて成形されたレンズアレイは、その各レン
ズ部の光軸が傾いていないから、このレンズアレ
イを露光装置等に使用した場合には露光むらは発
生しない。Effects As explained above, according to the present invention, the eccentric direction of the gold pieces is aligned with the longitudinal direction of the template, and each gold piece is inserted into the through hole of the template in an aligned state, and the through hole is inserted into the through hole. The eccentricity of each gold piece is corrected by rotating each gold piece, which is tilted with respect to the axis of the through hole, around the axis of the gold piece. The lens array mold assembly method fixes each metal piece to the template by filling the clearance between the metal piece and each through hole with adhesive, so the optical axis of the concave spherical surface of the metal piece is not tilted. An array mold can be assembled. Therefore, since the optical axis of each lens part of a lens array molded using this lens array mold is not tilted, uneven exposure will occur when this lens array is used in an exposure device, etc. do not.
また、この組付方法によれば、金駒及び型板の
寸法精度のバラツキによる偏心を修正することが
できるので、これらの寸法精度を緩和することが
でき、したがつてこのレンズアレイ成形金型およ
び成形されたレンズアレイのコストを安くするこ
とができる。 In addition, according to this assembly method, it is possible to correct eccentricity due to variations in the dimensional accuracy of the gold piece and the template, so it is possible to alleviate these dimensional accuracy, and therefore, this lens array mold And the cost of the molded lens array can be reduced.
第１図はレンズアレイの全体斜視図、第２図〜
第４図は、偏心の原因を示す説明図、第５図〜第
７図は、この発明の一実施例により組み付けられ
るレンズアレイ成形金型を示し、第５図は同成形
金型の構造を示す分解斜視図、第６図は同成形金
型の構造を示す要部断面図、第７図は同成形金型
の組付状態を示す要部拡大断面図である。
１……レンズアレイ、４……レンズアレイ成形
金型、４ａ……キヤビテイ、５……型板、５ａ…
…貫通孔、９……螺子、１０……金駒、１０ａ…
…凹球面、１３……接着剤。
Figure 1 is an overall perspective view of the lens array, Figures 2-
Fig. 4 is an explanatory diagram showing the cause of eccentricity, Figs. 5 to 7 show a lens array molding die assembled according to an embodiment of the present invention, and Fig. 5 shows the structure of the molding die. FIG. 6 is a sectional view of a main part showing the structure of the mold, and FIG. 7 is an enlarged sectional view of a main part showing the assembled state of the mold. 1... Lens array, 4... Lens array mold, 4a... Cavity, 5... Template, 5a...
...through hole, 9...screw, 10...gold piece, 10a...
...Concave spherical surface, 13...Adhesive.
Claims (1)
それぞれに、それぞれ一端面に凹球面を有する柱
状の金駒を該凹球面同士が互いに対向するように
組み付け、前記上下の型板および上下の金駒によ
つて形成されたキヤビテイ内に合成樹脂を流し込
み、硬化させてレンズアレイを成形するレンズア
レイ成形金型において、 前記金駒の偏心方向を前記型板の長手方向に揃
え、かつ整列させた状態で各金駒を前記型板の貫
通孔に挿入して貫通孔内に螺子で螺合させて仮止
めし、貫通孔の軸心に対しそれぞれ傾斜させられ
た各金駒を金駒の軸心を中心に回転させながら金
駒の偏心を修正し、全ての金駒とそれぞれの貫通
孔とのトクリアランスに接着剤を充填して各金駒
を型板に固定したことを特徴とするレンズアレイ
成形金型の組付方法。[Scope of Claims] 1. Assemble columnar gold pieces each having a concave spherical surface on one end surface to each of the through holes formed in a predetermined arrangement in the upper and lower templates so that the concave spherical surfaces face each other, and In a lens array molding mold in which a synthetic resin is poured into a cavity formed by upper and lower templates and upper and lower metal pieces and cured to form a lens array, the eccentric direction of the metal pieces is aligned with the longitudinal direction of the template. Insert each gold piece into the through-hole of the template in a state where it is aligned and aligned, and temporarily fasten it by screwing it into the through-hole. The eccentricity of the gold pieces was corrected by rotating the gold pieces around their axis, and each gold piece was fixed to the template by filling the clearance between all the gold pieces and each through hole with adhesive. A method for assembling a lens array mold, characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15572083A JPS6048310A (en) | 1983-08-27 | 1983-08-27 | Assembling of mold for lens array |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15572083A JPS6048310A (en) | 1983-08-27 | 1983-08-27 | Assembling of mold for lens array |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6048310A JPS6048310A (en) | 1985-03-16 |
| JPH044126B2 true JPH044126B2 (en) | 1992-01-27 |
Family
ID=15612009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15572083A Granted JPS6048310A (en) | 1983-08-27 | 1983-08-27 | Assembling of mold for lens array |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6048310A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6592356B1 (en) * | 1999-05-05 | 2003-07-15 | Johnson & Johnson Vision Care, Inc. | Mold, molding system and molding machine for making ophthalmic devices |
| US7898738B2 (en) | 2007-09-10 | 2011-03-01 | Oki Data Corporation | Lens array, manufacturing method thereof, LED head having lens array, exposure device having LED head, image forming apparatus having exposure device, and reading apparatus |
| JP4490494B2 (en) * | 2007-09-10 | 2010-06-23 | 株式会社沖データ | Lens array manufacturing method, lens array, LED head, exposure apparatus, image forming apparatus and reading apparatus |
-
1983
- 1983-08-27 JP JP15572083A patent/JPS6048310A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6048310A (en) | 1985-03-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS62220244A (en) | Manufacture of ceramic core | |
| JPH044126B2 (en) | ||
| JPS604768B2 (en) | Manufacturing method of lens barrel unit | |
| US10623613B2 (en) | Camera module and method for producing the same | |
| JPS6256906A (en) | Optical connector and its manufacture | |
| JP2992094B2 (en) | Lens holding member | |
| JPS623910A (en) | Preparation of cylindrical frame for telescoping lens | |
| JPH0723211Y2 (en) | Mold for molding wood golf club head | |
| JPS598063B2 (en) | Hand Thai Souchino Seizou Souchino | |
| JPH0319585A (en) | Fixing method for ccd block for picture read | |
| JPS5849720B2 (en) | Rotating shaft connecting plate and its manufacturing method | |
| JPH02154854A (en) | Sliding table device and manufacture thereof | |
| JPH0723212Y2 (en) | Mold for molding wood golf club head | |
| JPH04190309A (en) | Manufacture of multicore optical connector | |
| JPH0497812A (en) | Mold for molding optical part made of plastic | |
| JPH0319583A (en) | Fixing method for ccd block for picture read | |
| JPS62257804A (en) | Slip cast molding die | |
| JP3198424B2 (en) | Mold motor | |
| JPH0334044B2 (en) | ||
| EP0506004A1 (en) | Ferrule molding tool | |
| CN112618076A (en) | False tooth gypsum model surrounding mould filling box and using method thereof | |
| JPH06173862A (en) | Resin film forming device of screw type pump rotor | |
| JPH02282707A (en) | Ferrule of optical fiber connector | |
| JPH0763968A (en) | Optical component and its production | |
| JPS5829609A (en) | Method of molding grc box-shaped panel |