The Waterbury Democrat., 1936-02-29
C. E. Mnthes Takes Photo
 By Using LnOisibLe Ray
DarIIened Studio Experi- mlent Successful; May-
 OTIS Picture Taken

The usual methods of lighting, for taking photographs, were dis cagded here recently when 1t was discovered that certain invisible rays employed in Q darkened studio, produced extremely remarkable re- suits, according to c. E. H. Mathes, professional photographer and photo of Waterbury. PhotOflasll and photoflood bulbs, as well as flash powders, surrendered to the highly effective invisible rays of ultra -violet-inore popular ly known to the theatrical fraternity aS "lack Light.
 Demonstration Planned
 Tn the near future Mir. Mathes plans to hold Q demonstration in his studio at 73 East Main street, to which engineers, doctors and pro- fegsicnaI photographers will be tn- vited to witness the newly de- veioped photographic art and its results.
 For many years, invisible ultra violet radiations screened or separ- ated from mercury vapor or carbon gre light sources, have been used in creating self-lumfilous novelty effects on darkened theater stages. 4 thorough laboratory study made by Robert L. Zahour, lighting sci- entist of Hartford, associated with the lighting educational staff of the Connecticut Light 6 Power corl- pany, revealed that Q certain group of these invisible rays are rich iii actinic radiations, which affect many photographic practicability of these days, Mfr. Zahour united his efforts with the professional knowl- edge of Mfr. Mattes in performing studio tests. Jointly these scien- tific investigators worked anxious 1y for several nights, constructing special equipment to produce the invisible rays. Results from their first test run of photographs, re- veaIed that the theory was sound, but changes had to be made in the studio technique and composition of developing solutions. With the in- visible ray generator satisfactory, MT. Mathes set to work to solve the photographic problems before him. Alter ceaseless efforts, and repeated trials, all obstacles were cleared and preparatoins were made for another series Of experiements.
 Experiment Proceeds
 The specially constructed ultra violet generator flooded MT. Mathes' East Main street studio with irlvisi- blo picture. When ready, the light bulb was extinguished and 8 faint, barely noticeable dark blue fog" seemed to haze the darkness, as the investigators proceeded with their experiments. Development of the exposed plates revealed unusual cl9arness of fine details and a true natural composure of the subject. Details of black clothes" saiA MT. Matheg, upon close inspection of de- velcped plates, "could not be more clearly pronounced, as the invisible rays bring out every thread in the textiles" These acteristics, 1" explained Mr. Zahour, "car be ex- pected, because the wave lengths Of these invisible rays are much short CT than light waves which emanate from photographic lamps"
 Further experimental photographs revealed inst the pronunciation of deteii could be varied through cer- tain changes in the setting and position of the iiltra-violet source. As an example, with proper manipu- jation of the ultra-yiolet rays, Q photograph can be made to either strongly emphasize freckies, minute scars, bIenishes or other skin ir- reguiarities, or reduce their appear snce to an unnoticeable detail. This feature of the invisible ray should be of great value in police work" said Mr. Mathes, "tn taking photo- graphs of . scene of Q crime to get photographic evidence for court tsiaig and police inspection. Such . photograph would strongly por- tray bruises, body welts resulting from violence, and other valuable