The invention provides a side emitting light emitting diode light source within the lens. Its role is to change the light emitting diode chip emitting direction, most of the light from the side of the light emitting diode chip along the central vertical axis of the very small angle inward gathered a.....
[Detail]
The invention relates to a mechanical zoom lens device which comprises a first cylinder (103) provided with a zoom curve groove (117) and a compensating curve groove (116), a second cylinder (104) provided with a straight line groove (115), a first circular ring (105) provided with a first keyhole (.....
[Detail]
The utility model discloses a combined LED lamp holder, which comprises a connecting seat connected with a street lamp fastener, a main bracket connected with the connecting seat and a plurality of lamp components, wherein the lamp components comprise a radiation bracket and an LED component consist.....
[Detail]
本发明提供一种水基嵌段聚氨酯及其制备方法，其特征在于它含有由用于形成软段相的（Ａ）组组分的反应产物与用于形成硬段相的（Ｂ）组组分的反应产物所形成的预聚物在水中继续反应所得的聚合物。（Ａ）：催化剂０．０１－０．２重量份；聚醚或聚酯二元醇３０－１００重量份；芳香族或脂肪族二异氰酸酯５－３０重量份；扩链剂短链脂肪族二元醇２－１０重量份；（Ｂ）：芳香族二异氰酸酯５－２０重量份；交联剂三羟基多元醇０．１－２．０重量份；扩链剂短链脂肪族二元醇２－１０重量份；含羧基的短链脂肪族二元醇２－１０重量份；短链脂肪族有机叔胺类中和剂２－１０重量份。本发明还提供通过施用所述聚氨酯所得的具有防水、保暖、透湿性的材料。
[Detail]
A method for the exchange of information between heterogeneous environments adaptive procedure call method comprising the steps of: a database of product model data into the object model, and further converted to extensible markup language file; using the Extensible Stylesheet Language, will be exte.....
[Detail]
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