JPH071608Y2 - Synthetic resin lens - Google Patents
Synthetic resin lensInfo
- Publication number
- JPH071608Y2 JPH071608Y2 JP1987070203U JP7020387U JPH071608Y2 JP H071608 Y2 JPH071608 Y2 JP H071608Y2 JP 1987070203 U JP1987070203 U JP 1987070203U JP 7020387 U JP7020387 U JP 7020387U JP H071608 Y2 JPH071608 Y2 JP H071608Y2
- Authority
- JP
- Japan
- Prior art keywords
- lens
- frame
- synthetic resin
- thin portion
- resin lens
- 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 - Lifetime
Links
- 229920003002 synthetic resin Polymers 0.000 title claims description 12
- 239000000057 synthetic resin Substances 0.000 title claims description 12
- 238000000465 moulding Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
Landscapes
- Lens Barrels (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、合成樹脂製レンズで特にレンズ枠を一体にし
た合成樹脂製レンズに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a synthetic resin lens, and more particularly to a synthetic resin lens in which a lens frame is integrated.
合成樹脂製レンズは、材質が柔らかくレンズ面に傷がつ
きやすい。又レンズ面に傷がつくと性能を低下させるた
め好ましくない。特に移送，保管，組立作業中にレンズ
同志の接触によつて傷をつけることが多い。これを防止
するために、特開昭56−153301号に記載されたプラスチ
ツクレンズのように、レンズの縁から外方に突出したレ
ンズ枠を一体に設け、このレンズ枠の肉厚をレンズの肉
厚よりも大にすることによつて、レンズの移動や組立作
業中にレンズ表面が互いに接触したり他の部分と接した
りするのを防止して、レンズ面に傷がつかないようにし
たものが知られている。The synthetic resin lens is made of a soft material, and the lens surface is easily scratched. Further, if the lens surface is scratched, the performance is deteriorated, which is not preferable. Especially during transportation, storage, and assembly work, the lenses are often damaged by contact with each other. In order to prevent this, a lens frame protruding outward from the edge of the lens is integrally provided like the plastic lens described in JP-A-56-153301, and the thickness of this lens frame is set to the thickness of the lens. By making it larger than the thickness, it prevents the lens surfaces from touching each other or other parts during movement of the lens or assembly work, and prevents the lens surface from being scratched. It has been known.
又他の従来の合成樹脂製レンズとして実開昭61−45730
号公報に記載されたもののように、レンズの縁より外方
に突出した枠を一体に設け、枠の形状を光軸に対し同心
円状の嵌合面とこれに直角なフランジ面を有し、これら
面をレンズ取付けの際の位置決めのために利用したもの
が知られている。In addition, as another conventional lens made of synthetic resin
Like the one described in Japanese Patent Publication No. JP-A No. 2003-242242, a frame protruding outward from the edge of the lens is integrally provided, and the shape of the frame has a concentric fitting surface with respect to the optical axis and a flange surface perpendicular to this. It is known that these surfaces are used for positioning when mounting a lens.
しかし前述の従来例のようにレンズの縁より突出した枠
を一体に設けた場合、レンズを成形する際の金型内での
溶融樹脂の流れや、冷却時の不均一な収縮等により、レ
ンズ（有効レンズ部分）の特に枠の近くの周辺部分に変
形や歪を生じ、レンズの性能を著しく劣化させる欠点が
ある。特に特開昭56−153301号のレンズでは枠の肉厚が
レンズよりも厚く又実開昭61−45730号のレンズも枠の
厚さが大である。このように枠の厚さが大であると一層
レンズの変形が起りやすい。However, when a frame protruding from the edge of the lens is integrally provided as in the above-mentioned conventional example, the lens may flow due to the flow of the molten resin in the mold when molding the lens or uneven contraction during cooling. There is a drawback that the performance of the lens is remarkably deteriorated by causing deformation or distortion particularly in the peripheral portion of the (effective lens portion) near the frame. In particular, the lens of JP-A-56-153301 has a thicker frame than the lens, and the lens of Japanese Utility Model Laid-Open No. 61-45730 also has a thicker frame. If the frame has a large thickness, the lens is more likely to be deformed.
本考案が解決しようとする問題点は、レンズの縁より外
方へ突出する枠を一体に形成したレンズで、枠を一体に
形成したことによる成形時におけるレンズへの悪影響を
除去した合成樹脂製レンズを提供するものである。The problem to be solved by the present invention is a lens integrally formed with a frame projecting outward from the edge of the lens, which is made of synthetic resin to eliminate adverse effects on the lens at the time of molding due to the integrally formed frame. A lens is provided.
又本考案のレンズは、上記の従来例の欠点がなく、しか
も移送や組立作業中等にレンズ表面に傷がつくことのな
い構成にしたものである。Further, the lens of the present invention is constructed so as not to have the above-mentioned drawbacks of the conventional example and not to be scratched on the surface of the lens during transportation or assembling work.
本考案の合成樹脂製レンズは、前記問題点を除去するた
めにレンズの縁より外方へ突出する枠を一体にすると共
に前記枠の少なくともレンズより突出する部分を肉薄に
し、この肉薄部分を両側より厚いリングにて挾み固定し
たもので、これによつてレンズ成形時に枠によるレンズ
に対する悪影響を除去すると共にリングによつて前記肉
薄部分の補強と移送，保管，組立時等におけるレンズ表
面を保護するようにしたものである。In order to eliminate the above-mentioned problems, the synthetic resin lens of the present invention is integrally formed with a frame projecting outward from the edge of the lens, and at least a part of the frame projecting from the lens is thinned, and the thinned part is formed on both sides. It is fixed by sandwiching it with a thicker ring, which eliminates the adverse effect of the frame on the lens when molding the lens and the ring protects the lens surface during reinforcement, transfer, storage and assembly of the thin part. It is something that is done.
以下図面にもとづいて本考案の実施例を説明する。 An embodiment of the present invention will be described below with reference to the drawings.
第１図は、本考案の一実施例を示すもので１は、レンズ
でレンズ部２とのその縁部より外方へ突出する枠３とよ
り構成されており、この枠３のレンズ部側3aは肉薄にな
つている。4,5は補強リングでレンズ１の枠３の肉薄部3
aを挾むようにして取付けられ又両リング4,5の端面4a,5
aがレンズ部２の面頂よりも外に位置するようにその肉
厚を比較的厚くしてある。FIG. 1 shows an embodiment of the present invention, in which a lens 1 is composed of a lens portion 2 and a frame 3 projecting outward from an edge portion thereof. 3a is thin. Reference numerals 4 and 5 denote reinforcing rings, which are thin portions 3 of the frame 3 of the lens 1.
It is attached so that it sandwiches a, and the end faces 4a, 5 of both rings 4,5
The thickness is relatively thick so that a is located outside the apex of the lens portion 2.
本考案のレンズは、枠３のレンズ部２の側が肉薄になつ
ているため、これを合成樹脂により一体に形成しても成
形時の収縮その他によりレンズ本体２が影響を受けるこ
となく、レンズ本体２の変形や歪みを生ずるおそれがな
い。又枠３の肉薄部分3aはリング4,5により挾まれ補強
されるので薄くしても強度上の問題はなく、リング4,5
の端面4a,5aがレンズ部２の面頂より外に位置するため
に移送，保管，組立て作業時の有効レンズ面の傷防止の
役割りをも有するものである。更に枠３の外周面3bおよ
び端面3c又は3dの光軸等に対する位置精度を良くしてお
けば鏡筒その他の保持部材に取付ける際の位置決めとす
ることが可能である。尚、リング4,5のレンズ１の肉薄
部分3aへの取付けは、接着剤により接着固定することに
より行う。In the lens of the present invention, since the lens portion 2 side of the frame 3 is thinned, even if it is integrally formed of synthetic resin, the lens body 2 is not affected by shrinkage during molding or the like, and the lens body 2 is not affected. There is no risk of deformation or distortion of 2. Also, since the thin portion 3a of the frame 3 is sandwiched and reinforced by the rings 4 and 5, there is no problem in strength even if it is thin.
Since the end surfaces 4a, 5a of the lens are located outside the top of the lens portion 2, they also have a role of preventing scratches on the effective lens surface during transfer, storage and assembly work. Further, if the positional accuracy of the outer peripheral surface 3b and the end surface 3c or 3d of the frame 3 with respect to the optical axis or the like is improved, it is possible to perform positioning when attaching to the lens barrel or other holding member. The rings 4 and 5 are attached to the thin portion 3a of the lens 1 by adhesively fixing them with an adhesive.
第２図は、レンズ１にリング４又は５を取付けるための
他の手段を示す図で、この場合、図示するようにレンズ
１の枠３の一部に切欠き部３を設け、一方リング４の一
端に間隔4bを設けてリングにばね性を持たせ、爪4cによ
つて間隔4bを狭くした後にレンズ１の枠３の肉薄部分3a
に嵌め込み、リングの開く力を利用して固定する方法で
ある。これによつて簡単に取付けられる。この場合に
も、接着剤を使用することができる。FIG. 2 is a view showing another means for attaching the ring 4 or 5 to the lens 1. In this case, a notch 3 is provided in a part of the frame 3 of the lens 1 as shown in FIG. A space 4b is provided at one end of the ring to make the ring springy, and the space 4b is narrowed by the claw 4c, and then the thin portion 3a of the frame 3 of the lens 1 is formed.
It is a method of fixing by using the ring opening force. This makes it easy to install. Also in this case, an adhesive can be used.
第３図はさらに他の取付手段を図示したもので、レンズ
１の枠３に僅かなテーパー面3eを設けリング４を圧入す
ることによつて固定するものである。FIG. 3 shows still another mounting means, in which the frame 3 of the lens 1 is provided with a slight taper surface 3e and is fixed by press-fitting the ring 4.
その他ねじ込み式や回転ロツク式等の各種の取付け手段
が考えられる。In addition, various mounting means such as a screw-in type and a rotary lock type can be considered.
本考案の合成樹脂製レンズは、レンズ部と枠とを一体に
したものであるが、レンズ部と枠の接続部付近は極めて
薄くしたので、枠を一体にしたにもかかわらずレンズ部
の変形や歪みなどの悪影響を与えることがない。又リン
グを取付けることにより枠の薄肉部分を補強すると同時
にレンズ面の保護の役目を有するものである。The synthetic resin lens of the present invention is one in which the lens part and the frame are integrated, but since the vicinity of the connection part between the lens part and the frame is extremely thin, the lens part is deformed despite the frame being integrated. There is no adverse effect such as distortion and distortion. Also, by attaching a ring, the thin wall portion of the frame is reinforced and at the same time the lens surface is protected.
第１図は本考案の合成樹脂製レンズの断面図、第２図，
第３図は夫々レンズにリングを取付ける異なる手段を示
すものである。 １……レンズ、２……レンズ部、３……枠、4,5……リ
ング。FIG. 1 is a sectional view of the synthetic resin lens of the present invention, FIG.
FIG. 3 shows different means for attaching the rings to the respective lenses. 1 ... Lens, 2 ... Lens part, 3 ... Frame, 4,5 ... Ring.
Claims (1)
れた肉薄部と、前記肉薄部の更に外周に設けられた枠と
を一体に形成してなる合成樹脂製レンズにおいて、前記
肉薄部はレンズ部の最大厚さに比較して十分薄い肉厚と
し、別体の補助リングを、前記肉薄部の上限両面の前記
枠の内壁側に装着させ、上下方向より前記肉薄部を挟む
ように取り付けたことを特徴とする合成樹脂製レンズ。1. A synthetic resin lens comprising a lens portion, a thin portion provided on the outer periphery of the lens portion, and a frame further provided on the outer periphery of the thin portion, wherein the thin portion is formed. Is a thickness sufficiently smaller than the maximum thickness of the lens portion, and a separate auxiliary ring is attached to the inner wall side of the frame on the upper limit both sides of the thin portion so that the thin portion is sandwiched from the vertical direction. A synthetic resin lens characterized by being attached.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987070203U JPH071608Y2 (en) | 1987-05-13 | 1987-05-13 | Synthetic resin lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987070203U JPH071608Y2 (en) | 1987-05-13 | 1987-05-13 | Synthetic resin lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63178806U JPS63178806U (en) | 1988-11-18 |
| JPH071608Y2 true JPH071608Y2 (en) | 1995-01-18 |
Family
ID=30911624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987070203U Expired - Lifetime JPH071608Y2 (en) | 1987-05-13 | 1987-05-13 | Synthetic resin lens |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH071608Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7081644B2 (en) * | 2004-02-06 | 2006-07-25 | Barnes Group Inc. | Overmolded lens on leadframe and method for overmolding lens on lead frame |
| US7201495B2 (en) * | 2004-08-03 | 2007-04-10 | Philips Lumileds Lighting Company, Llc | Semiconductor light emitting device package with cover with flexible portion |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59126201U (en) * | 1983-02-14 | 1984-08-25 | キヤノン株式会社 | mold lens |
| JPS6129308U (en) * | 1984-07-26 | 1986-02-21 | アルプス電気株式会社 | objective lens |
| JPS6211815A (en) * | 1986-07-18 | 1987-01-20 | Olympus Optical Co Ltd | Lens holding device |
-
1987
- 1987-05-13 JP JP1987070203U patent/JPH071608Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63178806U (en) | 1988-11-18 |
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