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holding CLeye
holding CLeye

Crime-lite® Eye

DARKNESS ADAPTATION CHECKER

The Crime-lite® Eye is a simple pocket-sized device that helps crime scene examiners to achieve optimum dark adaptation when entering a dark environment to search for evidence using a forensic light source.

During darkness adaptation, as the brain attempts to interpret and understand its surroundings, an examiner’s vision suffers from low acuity and greatly reduced colour sensitivity. As a result of this, the examiner’s ability to detect faint fluorescence, stimulated by a forensic light source, is significantly reduced.

A 2013 study by the UK Centre for Applied Science and Technology (CAST) demonstrated that examinations conducted without proper dark adaptation would result in evidence being missed.

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Datasheet PDF

A visual guide to when full darkness adaptation has been achieved

Using the Crime-lite Eye is easy. A numerical LED display shows the numbers 1-20 to indicate varying degrees of illumination intensity (from 1 very-dim to 20 very-bright).

Having determined in advance a sensitivity level that is considered fit to commence an examination (this level may be governed by the individual or at organisation level) the examiner needs only to use the Up and Down arrows to select the desired sensitivity level (1-20) and then, upon entering the dark environment, wait until the chosen sensitivity level is reached.

Once the selected level becomes visible, darkness adaptation has been achieved.

Dark Adaptation Goggles can reduce adaptation times

By wearing a pair of red-glass viewing goggles it is possible to dark adapt the eye prior to fluorescent examinations. The goggles may also be worn when moving between dark and light environments to ensure that the eye remains dark adapted.

Foster + Freeman Ltd.
Registered No. 01403147 England
Vale Park, Evesham, Worcestershire, WR11 1TD, United Kingdom
info@fosterfreeman.com
+44(0)1386 768 050

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  • Productos
    • Análisis de documentos cuestionados
      • Estaciones de trabajo VSC
        • VSC®8000/HS
        • VSC® PDi+
        • VSC®800
        • VSC®80/FS
        • VSC®80i
      • Análisis rápidos
        • VSC® PDi+
        • VSC®QC1+
        • eye-D2®
      • Sistemas de laboratorio
        • ESDA®2
        • foram®3
    • Fuentes de luz forenses
      • Iluminación multiespectral
        • Crime-lite® AUTO
        • Crime-lite® X
      • ALS de mano
        • Crime-lite® LASER
        • Crime-lite® 82S
        • Crime-lite® 82L
        • Crime-lite® 42S
        • Crime-lite® 2
        • Crime-lite® XL
      • ALS de laboratorio
        • DISCOVER®
        • Crime-lite® ML PRO
        • Crime-lite® ML2
        • Crime-lite® MLD
        • Crime-lite® AUTO
    • Huellas digitales
      • Sistemas de Imagen
        • DISCOVER®
        • DCS® 5
        • AARI®
      • Sistemas de enhumado
        • MVC® FFLEX M
        • MVC®lite
        • RECOVER LFT
        • PolyCyano UV
      • Técnicas noveles
        • fpNatural® Powders
    • Análisis de evidencias de trazos
      • ffTATM
        • Medidas de índice de refracción de vidrio
        • Espectrocopia de Raman
        • Microscopio de luz polarizada
        • Microespectrometría
        • Imagen por fluorescencia
      • foram®3
      • Bases de datos de espectros de Raman
  • Soluciones
    • Ciencia forense: Análisis de escenarios del crimen
    • Ciencia forense: Cribado de laboratorio
    • Ciencia forense: Huellas digitales
    • Ciencia forense: Evidencias de trazos
    • Ciencia forense: Análisis de documentos cuestionados
    • Autentificación de documentos Documentos de viaje y de identidad
    • Autentificación de documentos: Filatelia
    • Autentificación de documentos: Impresión de seguridad
    • Autentificación de documentos: Protección de marcas
    • Táctica: CBRNe
    • Táctica: TSCM
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