Endoscopic device intended, in particular, for a medical usage

An endoscopic device comprising:

• a grip including an image sensor therein;
• an optical guide head configured to be inserted, at least in part, into a body or a cavity in order to view a given object that is inaccessible by direct view of a physician, wherein the optical guide head comprises a single organic glass-based optical rod,
• wherein the single organic glass-based optical rod is formed of organic glass continuously from a proximal end to a distal end of the optical rod;
• wherein the single organic-based optical rod has an outer diameter in a range of 0.5 mm to 1.5 mm, and a length of about 35 mm from the proximal end to the distal end, and a refraction index gradient with a polynomial profile;
• wherein the proximal end of the single organic glass-based optical rod is attached to the grip;
• and
• wherein the single organic glass-based optical rod is configured to form an image on the image sensor from light rays coming from the object to be viewed;
• an illumination fiber disposed within a longitudinal rail formed in the single organic glass-based optical rod;
• and
• an optical lens disposed at the distal end of the single organic glass-based optical rod, the optical lens configured to magnify the image of the object onto the single organic class-based optical rod.