The present invention relates to a Pneumatic System that can be employed within the residential environment. Preferably, the methods include the step of electrolytic decarboxylation of a ribonic acid or arabinonic acid reactant to produce erythrose. The plurality of light receiving parts associated with each microlens receive the light from the subject that has been imaged onto the microlens and subject the light to photoelectric conversion. Electrical circuitry is located within the housing for performing a function, and an electrical connector for providing an electrical connection between the electrical circuitry located within the housing and an external device.