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Publication number
JP2004098620A5
JP2004098620A5 JP2002267102A JP2002267102A JP2004098620A5 JP 2004098620 A5 JP2004098620 A5 JP 2004098620A5 JP 2002267102 A JP2002267102 A JP 2002267102A JP 2002267102 A JP2002267102 A JP 2002267102A JP 2004098620 A5 JP2004098620 A5 JP 2004098620A5
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Japan
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resin
cavity
transfer
nest
pressure
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JP2002267102A
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JP4242621B2 (ja
JP2004098620A (ja
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Priority to JP2002267102A priority Critical patent/JP4242621B2/ja
Priority claimed from JP2002267102A external-priority patent/JP4242621B2/ja
Publication of JP2004098620A publication Critical patent/JP2004098620A/ja
Publication of JP2004098620A5 publication Critical patent/JP2004098620A5/ja
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Publication of JP4242621B2 publication Critical patent/JP4242621B2/ja
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Claims (1)

  1. 溶融樹脂を金型のキャビティに射出・充填し、転写圧力を発生させて樹脂に所望形状を転写してプラスチック光学部品を成形した後、冷却し、該プラスチック光学部品を金型内から取り出す射出成形方法において、
    前記キャビティ内部の圧力をＰ、キャビティ容積をＶとした場合、キャビティに充填された樹脂に圧力を加えてキャビティ形状を転写させる際のＰ×Ｖが成形の１サイクル内での最大値とした後、非光学面を有した少なくとも１つ以上の移動可能な入子を樹脂の転写圧力によって移動させることにより、樹脂のキャビティの容積を拡大して最大値より小さいＰ×Ｖの第２のピークを形成し、その後、前記非光学面を有した入子の転写面と樹脂とを密着させた状態で樹脂の冷却収縮に伴って入子を追従して移動させることによりＰ×Ｖを減少させることを特徴とするプラスチック光学部品の射出成形方法。
JP2002267102A 2002-09-12 2002-09-12 プラスチック光学部品の射出成形方法 Expired - Fee Related JP4242621B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002267102A JP4242621B2 (ja) 2002-09-12 2002-09-12 プラスチック光学部品の射出成形方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002267102A JP4242621B2 (ja) 2002-09-12 2002-09-12 プラスチック光学部品の射出成形方法

Publications (3)

Publication Number Publication Date
JP2004098620A JP2004098620A (ja) 2004-04-02
JP2004098620A5 true JP2004098620A5 (ja) 2005-10-06
JP4242621B2 JP4242621B2 (ja) 2009-03-25

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JP2002267102A Expired - Fee Related JP4242621B2 (ja) 2002-09-12 2002-09-12 プラスチック光学部品の射出成形方法

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JP (1) JP4242621B2 (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110561690A (zh) * 2019-08-22 2019-12-13 珠海格力精密模具有限公司 一种消除塑料模具热膨胀间隙的方法、结构及设备

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