Infrared reflectography

Imaging using reflected infrared radiation or Infrared Reflectography (IRR) is a non-invasive technique, which has been widely applied in the study and conservation of works of art for several decades. & nbsp;This type of analysis is carried out by illuminating the work with & nbsp;visible daylight (or similar light sources) which contains a sufficient amount of infrared radiation. The infrared radiation reflected is recorded using specific detectors (cameras). The penetrating ability of infrared radiation, depending on factors such as the nature of the work itself, the functional characteristics of the camera, and the geometrical characteristics of the observation device, exposes underlying painting elements that are invisible to the naked eye, such as underpaintings and pentimenti (painting of an image that has been painted over), areas of over-painting, etc. It also provides initial indications about the nature of certain materials.

  • P.43 Unknown "Virgin and Child and two angels" - details

    The deviation from the preliminary sketch of the painter in comparison to the final painting is clearly distinguishable.

  • P.3662 Luca Giordano "Healing of the paralytic"

    The reflected infrared radiation revealed that the area of the image depicting a sky has an underlying painting of an angel, whom the painter chose to cover with the final composition. The same technique revealed the signature of the painter and an inscription of the date on the lower left of the work, all of which were also covered under the final composition of the painting.

  • P.512 Antonio Allegri Correggio "The Education of Cupid"

    The synthesis of infrared reflective graphs in the spectral range 950-1150 nm "maps" the loss areas on the painting which have undergone color restoration procedures in the past.

  • P. 2243 Antiphonary - Detail

    The reflection of infrared radiation provides evidence of the iron gall component in the ink and helps identify the orange pigment, which by all indications is probably cinnabar.

ΓΙΑ ΤΗΝ ΟΜΑΛΗ ΠΕΡΙΗΓΗΣΗ ΣΤΟΝ ΚΟΜΒΟ

ΠΡΟΤΕΙΝΕΤΑΙ Η ΧΡΗΣΗ ΣΥΣΚΕΥΗΣ ΥΨΗΛΟΤΕΡΗΣ ΑΝΑΛΥΣΗΣ