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US 8,574,658 B1Granted
Fumeless latent fingerprint detection
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorsLee R. Cambrea, Benjamin G. Harvey
Life of this patent
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Abstract
A fumeless latent fingerprint detection system using fluorescent particles.
Claims25
A method for latent print detection, comprising:
- providing at least one type of fluorescent particle;
- functionalizing said particles by covalently or ionically bonding a telechelic, multi-functional ligand to the surface that allows for covalent or ionic bonding directly to print residue;
- applying said functionalized, dry particles to a surface/substrate and determining whether said surface/substrate includes said residue;
- substantially removing unbound and excess said particles from said surface/substrate;
- and detecting remaining bound said particles through their fluorescence with a broadband UV source in real time.
2 more elements
A fumeless detection system for acquiring latent prints, comprising:
- at least one type of fluorescent particles;
- functionalizing said particles by covalently or ionically bonding a multifunctional telechelic ligand to the surface that allows for covalent or ionic bonding directly to print residue;
- applying said dry particles to a surface/substrate, wherein said unbound and excess said particles are substantially removed from said surface/substrate;
- and wherein bound particles remaining are detected by fluorescence due to excitation from a broadband UV source in real time.
1 more element
Dependencies are inferred from the claim text.