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Summary of Contents for Foster + Freeman VSC 80
- Page 1 ® Video Spectral Comparator User Manual (Hardware) (0280-H-04) February 2018...
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Page 2: Welcome
Foster + Freeman are pleased to offer advice, installation, training and on-site maintenance worldwide for all of their products. Specification Foster + Freeman reserve the right to alter the specification of this product, accessories and consumables without prior notice. Copyright This document contains proprietary information that is protected by copyright. -
Page 3: Table Of Contents
PLEASE REFER TO THE WELCOME SECTION BEFORE USING THE EQUIPMENT FOR THE FIRST TIME ONTENTS ARDWARE Page Welcome............................ 4 Main unit ............................6 Imaging system ..........................8 Light sources ..........................11 Optical filters ..........................15 Document locator (V6/TRANS/DC) ....................17 Optically variable ink viewer ......................18 Additional Functions ........................19... - Page 4 80/VSC 80i: Video Spectral Comparator ® ® Welcome to the Foster + Freeman VSC 80/VSC 80i Video Spectral Comparator. This equipment allows conducting technical studies of documents in laboratory conditions, checking the requested documents, using a variety of lighting and viewing conditions.
- Page 5 SE READ THIS INFORMATION BEFORE USING THE EQUIPMENT FOR THE FIRST TIME Certificate of conformity A certificate of conformity for this product is available from Foster + Freeman Ltd This equipment is manufactured in conformity with the requirements of the relevant directives of the European Community through compliance with a number of harmonised standards.
- Page 6 Copyright © Foster + Freeman Ltd ( (0280-004-02) USER GUIDE ® 80: M AIN UNIT ® 80: Main unit (Illumination modes) ® 80: Main unit Video camera Light sources Optical filters ▪▪▪▪▪▪ Translucent panel ® The VSC 80 is a powerful PC-based imaging system for examining documents of all types. The document to be examined is placed on the platen under the canopy and a video image displayed on the ®...
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Page 7: Main Unit
Electrical specification ® 80: Main unit (DC power) DC input 12 V DC; 5 A ® The VSC 80 can be operated from a compatible power source specified by Foster + Freeman. See: Quick). - Page 8 Environmental specification Environmental specification ® 80: Main unit (Environmental specification: BS EN 61010-1:2010) Location Indoor use only Altitude 2000 m (Max) Indoor use only 5 – 40 Ambient temperature Ambient humidity, RH% (5 – 31 80%* (Max) * Decreases linearly to 50% within the temperature range 31 – 40 Mechanical specification CAUTION CAUTION...
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Page 9: Imaging System
Video camera USER GUIDE ® 80: I MAGING SYSTEM ® The VSC 80 is a powerful PC-based imaging system for examining documents of all types. The document to be examined is placed on the platen under the canopy and a video image displayed on the monitor: ®... - Page 10 Monitor screen The photo-receptors, like those in the retina of the eye, respond to light in the red, green and blue parts of the spectrum. The combined spectral response of the receptors also extends beyond the visible limits of the unaided eye into the infrared and ultraviolet. Field of view (Optical zoom) The camera is provided with an optical system consisting of a motorised zoom lens and a supplementary close-up lens.
- Page 11 Monitor screen Main image (Magnification) The main image occupies only part of the display area of the monitor screen. ® 80: Monitor screen (Main image) Monitor screen Main image The dimensions of the main image are determined by: • Image mode and the corresponding digital scaling factor, n, applied by the VSC ®...
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Page 12: Light Sources
USER GUIDE ® 80: L IGHT SOURCES ® 80: Light sources Light emitting diodes Vapour discharge tubes Ultraviolet (UV) Visible Infrared (IR) ▲ ▲ ▲ ▲ 1000 Wavelength (nm) A variety of light sources are available to provide illumination in the UV, Visible and IR parts of the spectrum. - Page 13 Light emitting diodes (LED) ® 80: Reflected light sources: White Coaxial l flection) Diffracted lighting (21 LED array) ighting (Retro-re Software control Software control x1 White ® 80: Reflected light sources: UV365 Ultraviolet lighting (365 nm) Software control x2 UV365 UV365 x2 Illumination modes: Transmitted light sources ®...
- Page 14 Vapour discharge tubes Illumination modes: Reflected light sources (Spot lighting) High intensity spot lighting sources are intended for the fluorescence examination of documents. Differently coloured sources are available to suit the type of trace deposit sought. The sources may be activated in any combination.
- Page 15 Xenon. Flash tubes are used, with appropriate filtering, to provide intense IR light to excite Anti-Stokes fluorescence. Illumination modes: Reflected light sources ® 80: Reflected light sources: IR Flash lighting (840 – 1100 nm) x1 840 – 1100 nm Copyright © Foster + Freeman Ltd (0280-13-01)
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Page 16: Optical Filters
USER GUIDE USER GUIDE (0280-14-02) January 2018 ® 80: O PTICAL FILTERS ® ® The VSC 80 main unit is controlled by the PC system and VSC software. See: Software Manual (Optical filters). Filter types ® 80: Optical filters (Transmission spectrum) Longpass filter Shortpass filter Bandpass filter... - Page 17 450 – 520 Blue-Green 475 – 535 Cyan 490 – 535 Green 540 – 615 Orange 600 – 655 625 – 680 Deep red 680 – 750 Far red 420 – 670 White Copyright © Foster + Freeman Ltd (0280-14-02)
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Page 18: Document Locator (V6/Trans/Dc)
USER GUIDE (0020-15-13) December 2016 ® (V6/TRANS/DC) OCUMENT OCATOR ® : Document Locator (V6/TRANS/DC) The Document Locator is an accessory that can be used with any type of Video Spectral Comparator. When placed in the required position on the document platen, the Locator allows documents of the same type and shape to be precisely positioned within the field of view of the instrument. -
Page 19: Optically Variable Ink Viewer
USER GUIDE (0020-17-18) November 2016 ® PTICALLY ARIABLE IEWER ® : Optically Variable Ink Viewer Side view Front view (Mirror) The Optically Variable Ink Viewer is a mirrored accessory that can be used with any type of Video Spectral Comparator. It allows the detection and assessment of document features that have been printed using optically variable inks (OVI). -
Page 20: Additional Functions
Additional Functions Angular contrast Light may be reflected or diffracted by the topology or microstructure of a security feature only at particular angles. Retro-reflection ® : Retro-reflection Retro-reflective security features become visible when a semi-silvered mirror is used to illuminate the document coaxially with the viewing direction. - Page 21 ® : Stimulating and viewing fluorescence (Ultraviolet light) Narrowband excitation light Transmission spectrum of safe longpass viewing filter Fluorescence emission Absorption spectrum Wavelength (nm) Visible fluorescence ® : Visible fluorescence Excitation light (Visible) Fluorescence reveals an alteration Optical Character Recognition (OCR) The OCR feature reads the information within the Machine Readable Zone (MRZ).
- Page 22 detailed above. Barcode Reader The barcode reader is a tool for reading both 1D and 2D barcodes found in many documents. Before activating this feature, position the document in the VSC, magnifying the barcode and adjusting the focus if necessary. Click the barcode reader icon to activate, and any barcode(s) should be highlighted.
- Page 23 Visual contrast Visible fluorescence is stimulated in certain trace materials using narrow-band visible light. Differently coloured sources are available to suit the type of trace deposit sought. The longer wavelength fluorescence must be viewed using a suitable longpass filter. ® : Stimulating and viewing fluorescence Narrowband excitation light ...
- Page 24 Head Office & UK Sales Office Foster + Freeman Ltd Vale Park, Evesham WR11 1TD United Kingdom Tel: + 44 (0) 1386 768050 Fax: + 44 (0) 1386 765351 customersupportteam@fosterfreeman.com...
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