A treatment device which uses cold red and infrared radiation for the photodynamic
stimulation of cells, especially cells of human tissue. The described device produces
a constant energy radiation by the use of semiconductor and/or laser diodes, which
furthermore radiate light in several separate wavelengths due to a special operation
mode. With help of sensors the advanced controller system is able to test the patients
for the needed radiation doses in order to avoid overstimulation. Furthermore the
radiation openings in the applicators are advantageously covered with a polarization
filter, whereby the absorption in the irradiated tissue is increased. The basic
equipment consists of a standpillar, with which machine applicators are connected
with a jointed arm. The machine applicators are adapted for the treatment of large
area tissues, for example, the back of humans. The standpillar is freely movable
on wheels and includes a control mechanism, whereby the various parameters for
therapy can be adjusted and switched ON and OFF. The standpillar is also connected
to a hand applicator designed for the treatment of small tissue areas, e.g., acupuncture
points. Another version of the hand applicator is especially devised for dental
treatment, whereby the head piece of the hand applicator can be connected with
an expander containing an optical fiber. Photodynamic substances are introduced
into tissue to be treated, which enhances the effects of light irradiation by the
inventive device.