Patent ID: 8487998

Claim:
A digital peephole viewer device, which integrates with a door lens assembly on a door board, receives optical images from said door lens assembly, converts said optical images into digital images and presents said digital images, comprising a housing; an image capture unit installed in said housing and including a first lens receiving optical images captured by said door lens assembly; a signal processing unit converting said optical images into digital images and outputting said digital images; a display unit receiving said digital images and presenting said digital images; and a connection means integrating said housing and said door lens assembly wherein said door lens assembly includes a first tube and a second tube, which are coupled to each other in a screwing way; said first tube has a second lens; a first end of said second tube has an expanded rim; said first tube is inserted into one end of a through-hole of said door board; a second end of said second tube is inserted into the other end of said through-hole and coupled to said first tube in a screwing way; said connection means includes a seat having a plate with a through-hole, wherein said second tube is inserted through said through-hole to integrate with said first tube in a screwing way, wherein said expanded rim of said second tube is blocked by a perimeter of said through-hole; an annular wall projects from one side of said plate and surrounds said through-holes; an inner surface of said annular wall has several first tenons; and a pipe arranged in said housing and accommodating said first lens of said image capture unit, wherein an outer surface of said pipe has several second tenons corresponding to said first tenons, and wherein said expanded rim of said second tube clamps said seat to said door board when said first tube and said second tube are coupled to each other in a screwing way; one end of said pipe is inserted into said annular wall, and said first lens is aligned to one end of said second tube, and said pipe is rotated to an angle where said second tenons mate with said first tenons, whereby said housing is integrated with said seat and fixed on said door board.