Abstract: In an electronic endoscope apparatus containing an objective optical system and a CCD sensor at the distal end thereof, the optical system and CCD sensor are moduled in an optical module tube. The optical module tube is first separately formed from the body of the distal end portion of the electronic scope. In the optical module tube, a focusing of the objective optical system is preadjusted with respect to the CCD sensor. Thereafter, the optical module tube containing the focus-adjusted optical objective optical system is assembled with the body of the distal end portion.

Abstract: A method of cleaning scope end of endoscope capable of performing a painless cleaning operation as well as securing a stable direct observation condition, without relying on an operator's skill. The method includes the steps of: injecting water towards the scope end for washing out the scope end; exhaling air towards the scope end to blow away remaining drops on the scope end of the water injected at the injecting step; and inhaling as much an amount of air as exhaled at the exhaling step, slowly enough not to cause dew condensation due to an abrupt pressure decrease. An endoscope equipped with scope end cleaning mechanism performing this method is also disclosed.

Abstract: A front seat includes a seat cushion and a reclining back cushion, and is so arranged as to move back and forth between forward and retracted positions. The seat is temporarily released from the latched position for moving the seat towards the most forward position for facilitating movement of the rear seat passengers into and out of the vehicle. Thereafter, the front seat is again returned and latched in an original position by the operation of latch releasing mechanism employed in the front seat.