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.....
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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.....
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The present invention relates to a pseudo-element detector, the use of digital video streaming Check and record the security document or article, comprising: an input unit, provides the user a selection screen; processing unit, the input unit according to a selection signal issued by the control lig.....
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The present invention is a kind of micro-porous spherical crosslinked copolymer ligand rhodium carbonylation of methanol synthesis catalyst. Wherein the copolymer of vinyl pyridine ligand, ethylene glycol diester formed crosslinked copolymer. Use of ligands N, O donor atoms with four rhodium carbony.....
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