The present specification describes an endoscope tip having an illuminator window for covering an illuminator cavity holding an illuminator attached with a circuit board installed in the endoscope tip. The illuminator window has a rectangular shape with a distal long surface facing away from the illuminator, a proximal long surface facing towards the illuminator, and a first and a second side surface. The cavity has a first side wall positioned at a predefined distance from the first side surface of the window creating a first gap and a second side wall positioned at a predefined distance from the second side surface of the window creating a second gap. The first side surface of the window is attached to the first sidewall by application of glue in the first gap and the second side surface of the window is attached to the second sidewall by application of glue in the second gap, wherein the width of the first and the second gaps is greater than 0.8 mm and the distance between the illuminator an the window is less than or equal to 0.4 mm.
