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Forensic Comparison Microscope With Document Examination System

Document Examination System A18.1816

A18.1816 Questioned Document Examination Analyzer is an ideal tool to inspect, observe and compare many kinds of objects, evidences including:

-- All kind of questioned documents: Used of different kinds of writing instruments, by adding, altering, conceal, forgery and other methods of fade contract, IOUs, real estate contracts, invoices, bills of exchange, checks, bills of lading, passports and so on.
-- Various fluorescent encryption securities: checks, stocks, credit cards, stamps and special trademarks
-- Identify cards, resident identify cards, temporary residence permits, etc.
-- Currency: US Dollars, H.K. Dollars, RMB, etc.

A18.1816 Questioned Document Examination Analyzer

Light Source System

Main Light Source : 1x 24V/150W Halogen Lamp, with cooling fan, focusing lens, and heat-resistance glass cover

UVC: short-wave ultraviolet light 254nm, 1x10W

UVA: long-wave ultraviolet light 365nm, 1x10W

Upper visible side light: 1x50W, with lamp holder which can adjust position and angle freely, used to check indentation

Transmitted white light 2x20W

Excitation Wavelength: 000nm,365nm,450nm,465nm,515nm,530nm,565nm,580nm,900nm

Receiving Filter: 000nm,415nm,450nm,565nm,700nm,720nm,740nm,800nm,900nm

Video Camera System

High sensitive, high resolution 1/3” CCD color digital camera, 650 lines, sensitivity 0.001 Lux, especially sensitive to Near-infrared and visible spectral bands light source.

Electrical zoom lens, aperture 1.2, zoom ranges 1~30x

Function

Fluorescent light source with multi excitation and receiving filter combinations, can exam and compare the different inks used on documents

Reflect light and receiving filter combination, can exam the reflection and absorption of different wavelengths on different inks.

Reflect light and receiving filter combination, can exam the transmission of different wavelength infrared light on the different inks.

Transmit light and receiving filter combination, can exam the transmission of different wavelength infrared light on the different inks

Reflect side light can exam the scratch, cut marks on documents.

Transmit light can illuminate from the bottom side to exam the scratch, cut marks on documents.

Samples to choose light source according to different objects.
Objects	Light Source	Excitation	Receiving	Exam
Distinguish altered or added text by different kinds of ink	Excitation	485-550 nm	700-900 nm	Alter
Natural subside text on thermal paper, carbon paper	Excitation	480-550 nm	700-740 nm	Subside
Phosphor fingerprint	Excitation	480-550 nm	700-740 nm	Fluorescent
Multilayer indentation	Reflected Light _ Side	000nm	900nm	Indentation
Text on the black cloth	Reflected Light _ Side	000nm	900nm	Covered Text
Text in the Kraftpaper envelopes	Transmitted Light _ UV	000nm	900nm	Transmit
Correction Fluid	Transmitted Light _ UV	000nm	900nm	Alter
Security Trademark	UVC	000nm	000nm	Real/False
Currency Fluorescent	UVA	000nm	000nm	Fluorescent

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Categories	Forensic Comparison Microscope
Place of Origin:	China
Brand Name:	CNOEC, OPTO-EDU
Certification:	CE, Rohs
Model Number:	A18.11816
MOQ:	1 pc
Price:	FOB $1~1000, Depend on Order Quantity
Packaging Details:	Carton Packing, For Export Transportation
Delivery Time:	5~20 Days
Payment Terms:	T/T, West Union, Paypal
Supply Ability:	5000 pcs/ Month