Abstract: A portable phototherapy apparatus for treating a skin disorder in a patient. The apparatus includes an illumination source, an image capture device, a projecting system and a controller. The illumination source is configured to irradiate the patient's skin. The image capture device for capturing an image of lesion areas of the patient's skin needing treatment. The projecting system includes a therapeutic light source for generating UV radiation. The controller configured to cause the projecting system to form a shaped treatment image comprising the UV radiation on the patient's skin based on the image of the lesion areas captured by the image capture device such that the therapeutic light source delivers a dose of the UV radiation only to the lesion areas of the skin.