2002-090603 is referenced by 11 patents.

PROBLEM TO BE SOLVED: To provide a waterproof camera which avoids the complication of internal structure, which is small-sized and has a wide-field range.SOLUTION: This waterproof camera is equipped with a camera case for waterproofness 21 (a front case 21a and a rear case 21b) and a lens barrel 32 fixed inside the camera case. A lens-housing space CS is formed, communicating with the aperture of a front surface in the lens barrel 32. A wide-angle image pickup lens group 31 is disposed in the space CS. The front lens 31a of the lens group 31 is positioned at the aperture of the lens barrel 32 and is also used for sealing. A projection 32a at the edge of the lens barrel 32 is caulked on the lens side by thermal welding. An O-ring 34 is inserted between the outer peripheral surface of the lens 31a and the circumferential surface of the inner wall of the lens barrel 32 to seal the space between them. Also, an O-ring 25 is inserted between the outer peripheral surface of the edge part of the lens barrel 32 and the inner peripheral surface of the edge part of the front case 21a, to seal space between them.

Title
Waterproof camera
Application Number
2001-206885
Publication Number
2002-090603
Application Date
July 6, 2001
Publication Date
March 27, 2002
Inventor
Takahashi Masaki
Takekuma Hironobu
Assignee
Matsushita Electric
IPC
H04N 05/225
G03B 19/02
G03B 17/08
G03B 17/02
G03B 15/00
G02B 07/02