New light on the surface of art objects in the conservaon studio with a 3D digital Hirox microscope mounted on an XYZ stand

Jaap J. Boon (1)

in collaboraon with Emilien Leonardt (2) and Hideyuki Masui (3)

1: JAAP Enterprise for Art Scienfic Studies, , NL ( [email protected]) 2: Hirox Europe, Limonest, France ([email protected]) 3: Hirox-USA, Hackensack, New Jersey ([email protected]) .

The Microcosm of Works of Art is a vista to be opened to Heavier construcons were developed as permanent setup conservators, art sciensts, art historians and the public in in the conservaon studio. In horizontal mode the art work and museums. We have mounted a high resoluon microscopy the microscope-stand system are one unit thus minimizing system (HIROX) on a specially designed X-Y-Z stand system environmental vibraonal noise. Special tables have been (MOPAS) that enables direct microscopy of works of art both designed for mobility within a museum or conservaon studio. horizontally as well as vercally. See also jaap-enterprise.com.

This poster shows various examinaon modes with the High resoluon high magnificaon viewing with the HIROX instrumental setup and lighng condions in case studies. on MOPAS supports recording as calibrated sll images, led images or videos. Videos while micro-moving the microscope The portable T-stand for horizontal and vercal work is light over the surface, are parcularly useful for examinaon of weight and fits in a suitcase suitable for air transport (weight painng surfaces in poor condion by conservators

under 23 kg). It is demonstrated at the Hirox USA stand 551 in the Exhibion Hall. Imaging with the HIROX Z-direcon submicron stepper makes it possible to obtain 3D in-focus images and digital 3D

Acknowledgement: We thank Frans Hals Museum Haarlem (NL), Redivivus Conservaon Studio The image data sets that can be processed for 2D- and 3D-profile Hague (NL), Henie-Onstad Kunstsenter Oslo (N), the Jan van Eyck Research team of KIK-IRPA in Ghent (B) and Amsterdam (NL) for permission to use our own or their pictures. measurements and depth profiling. See also www.hirox.com

Perspex panels protect the painng

Mail slot setup with bridge stand for framed painngs Table setup with bridge stand for Jan van Eyck panels

Portable T-stand suitable for air transport @ Rijkmuseum @ MSK Gent Composi'on)1952)by)J1P)Riopelle)@))Henie)Onstad)Art)Centre,)Oslo)Norway)

@ HOK Hjem Jean Paul Riopelle’s impasto brushwork .

Mobile T-stand used at TEFAF 2015 Examinaon of stone at KIK-IRPA Study of signature ink on Chinese paper New development:

Aachment for UV-fluorescence view VIS

UV shows glue Lighng condions are vitally important in painng studies

Invesgaon of Woman with Kimono by Breitner at Redivivus Studio () u Bright field: specular reflecon but good informaon on varnish surface condion. u Dark field: more diffusing light condion images the paints Horizontal Bridge stand Bright field Dark field

Brush work by Frans Hals of a Regent’s cuff using the ling opon in the KH7700. Live ling by moving the microscope camera over the horizontal high precision bar of stand

Studies of the condion of Karel Appel 1950/60’s painngs at the Henie-Onstad Kunst- senter in Norway illustrang fabulous brush work but also severe damage due to internal chemical reacvity causing exudaon, dripping, premature cracks and delaminaon. u Rotary Head aachment on a MX2016-Z lens looks sideways rotang over 360 degrees