Transcript the Lumatec Presentation

SUPERLITE 400
Forensic Light Source
Arrowhead
Forensics
913-894-8388
Mobile Forensic Light Source
SUPERLITE 400
• LUMATEC
• SUPERLITE 400
• Spectral Facts
• Trail Identification
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The Designing of the SUPERLITE 400
• Cooperation with German Police
• Developed by police detectives
high mobility
low weight
optimum functionality
• LUMATEC
ease of use
• SUPERLITE 400
• Spectral Facts
flexible operations
• Trail Identification
safety
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SUPERLITE 400 in Detail - Front View
Telescope arm with
lightguide clip
Filter selection
Intensity control
• LUMATEC
Light guide socket
• SUPERLITE 400
• Spectral Facts
• Trail Identification
Battery pack with
LED charge indicator
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SUPERLITE 400 in Detail - Rear View
Key operated
safety switch
Charger with car
adapter cable
• LUMATEC
• SUPERLITE 400
• Spectral Facts
• Trail Identification
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SUPERLITE 400 in Detail - Light Guide Handle
• LUMATEC
• SUPERLITE 400
• Spectral Facts
• Trail Identification
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SUPERLITE 400 in Detail - Line Illuminator
Inspection of flooring
i.e. detection of foot prints
• LUMATEC
• SUPERLITE 400
• Spectral Facts
• Trail Identification
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Comparison of Lamp Efficiency
• LUMATEC
• SUPERLITE 400
By employing a superpressure lamp the
efficiency is enhanced by a factor of 4.
• Spectral Facts
Battery operation becomes possible.
• Trail Identification
Lightweight and compact design.
*Optimum performance in forensic spectrum (320-700nm)
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Fluorescence Observation - Schematic Diagram
Camera
Observation filter
Light source
(Longpass)
Fluorescence
Excitation filter
(Bandpass)
• LUMATEC
• SUPERLITE 400
• Spectral Facts
Stray light
Specimen
• Trail Identification
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SUPERLITE 400 - The Spectra and Their Applications
No.
Spe ctrum
Pow er
Goggle s
Application
0
400-700nm
white
10,0W
1
320-500nm
UVA+blue
6,6W
Orange
General search
2
400-500nm
blue
5,5W
Orange
General search, sperm, urine, fibers,
etc.
3
320-400nm
UVA
1,8W
4
415nm
violet
1,9W
Transparent General search
(UV protection) (f ootprints)
Transparent
General search, stains, fingerprints,
(UV protection)
textile fibers, body fluids
none
Fingertrails in blood, blood
Yellow/Orange Sperm, gun residuals
5
440nm
blue
2,1W
Yellow/Orange
Sperm, fingerprints treated w ti h
fluorescing powder
• LUMATEC
6
460nm
blue
2,0W
Orange
Fingerprints (Cyanoacrylate – Ardrox or
Cyanoacrylate DFO)
• SUPERLITE 400
7
490nm
turquoise
1,3W
Orange
Fingerprints (Cyanoacrylate – Ninhydrin
or Cyanoacrylate Rhodamin 6G)
• Spectral Facts
8
550nm
green
1,4W
Orange
Fingerprints treated with DFO, reduction
of background fluorescence
• Trail Identification
9
570nm
green-yellow
2,2W
Red
Fingerprints treated with Ninhydrin,
reduction of background fluorescence
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Störende Untergrundfluoreszenz
Minimierung d. Untergrundfluoreszenz durch geeignete
Auswahl von Anregungs- und Beobachtungsfilter
• LUMATEC
• SUPERLITE 400
• Spectral Facts
• Trail Identification
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Bedeutung der Filterqualität
gute Resultate bei der Spurensuche sind nur mit
hochwertigen Filtern erreichbar
• LUMATEC
• SUPERLITE 400
• Spectral Facts
• Trail Identification
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Examples of Trails (1)
• Fingerprints brushed with fluorescing powder
• Substrate:
Aluminium
• Excitation:
UVA + Blue (320-500nm)
• Observation:
Longpass filter (orange)
• LUMATEC
• SUPERLITE 400
• Spectral Facts
• Trail Identification
Greenwop
Redwop
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Examples of Trails (2)
• Fingerprints after fuming with cyanoacrylate and
dying with fluorescence agent
• Substrate :
Plastic foil (coloured)
• Excitation :
UVA (320-400nm)
• Observation : Longpass filter (orange)
• LUMATEC
• SUPERLITE 400
• Spectral Facts
• Trail Identification
ARDROX
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Transmission spectrum ARDROX
Absorption maximum between 320 and 400nm
• LUMATEC
• SUPERLITE 400
• Spectral Facts
• Trail Identification
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Examples of Trails (3)
• Fingerprints after fuming with cyanoacrylate and
dying with fluorescence agent
• Substrate:
Plastic foil (coloured)
• Excitation:
460nm
• Observation:
Longpass filter (orange)
• LUMATEC
• SUPERLITE 400
• Spectral Facts
• Trail Identification
Basic Yellow
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Transmission spectrum Basic Yellow
Absorption maximum at 460nm
• LUMATEC
• SUPERLITE 400
• Spectral Facts
• Trail Identification
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Examples of Trails (4)
• Fingerprints after fuming with cyanoacrylate and
dying with fluorescence agent
• Substrate:
Plastic foil (coloured)
• Excitation:
490nm
• Observation:
Longpass filter (orange)
• LUMATEC
• SUPERLITE 400
• Spectral Facts
• Trail Identification
Basic Red
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Transmission spectrum of Basic Red
Absorption maximum at 490nm
• LUMATEC
• SUPERLITE 400
• Spectral Facts
• Trail Identification
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Examples of Trails (5)
• Fingerprints after fuming with cyanoacrylate and
dying with fluorescence agent
• Substrate:
Paper (white)
• Excitation:
460nm
• Observation:
Longpass filter (orange)
• LUMATEC
• SUPERLITE 400
• Spectral Facts
• Trail Identification
DFO
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Transmission spectrum of DFO
high absorbance at 460 nm with good reduction of
background fluorescence
• LUMATEC
• SUPERLITE 400
• Spectral Facts
• Trail Identification
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Example: Proof of human fluids (1)
• Highly diluted blood trails
• Substrate:
Carpet (grey)
• Excitation:
415nm
• Observation:
Longpass filter (orange)
• LUMATEC
• SUPERLITE 400
• Spectral Facts
• Trail Identification
Blood trails in white light
Blood trails at 415nm
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Verifying of blood trails - Porphyrin Verification
Sulfuric acid (H2SO4) and blood
react to Porphyrin
Porphyrin fluoresces with
excitation at 406nm
• LUMATEC
• SUPERLITE 400
• Spectral Facts
• Trail Identification
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Example: Proof of human fluids (2)
• Saliva trails
• Substrate:
• Excitation:
• Observation:
Metal cabinet (blue)
UVA + Blue (320-500nm)
Longpass filter (orange)
• LUMATEC
• SUPERLITE 400
• Spectral Facts
• Trail Identification
Saliva in white light
Saliva in UVA + blue
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Example: Proof of human fluids (3)
• Sperm trails
• Substrate:
• Excitation:
• Observation:
Carpet (grey)
UVA (320-400nm)
Longpass filter (orange)
• LUMATEC
• SUPERLITE 400
• Spectral Facts
• Trail Identification
Sperm in white light
Sperm under UVA
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