US 7,513,704 B2
Electronic image pickup apparatus
Tetsuya Takagi, Akiruno (Japan)
Assigned to Olympus Corporation, Tokyo (Japan)
Filed on Jul. 27, 2005, as Appl. No. 11/190,518.
Claims priority of application No. 2004-248885 (JP), filed on Aug. 27, 2004.
Prior Publication US 2006/0044447 A1, Mar. 02, 2006
Int. Cl. G03B 17/00 (2006.01); G03B 7/099 (2006.01); G03B 11/00 (2006.01); H04N 9/73 (2006.01); H04N 5/335 (2006.01); G02B 5/20 (2006.01); G02B 7/02 (2006.01); G01V 8/00 (2006.01)
U.S. Cl. 396—529  [396/72; 396/275; 348/224.1; 348/294; 348/342; 359/723; 359/819; 250/482.1; 250/559.08] 1 Claim
OG exemplary drawing
 
1. An electrical image pickup apparatus comprising:
an image pickup element which converts a luminous flux from a subject passing through an image pickup lens into an electric signal;
an optical filter provided on the front side of the image pickup element on the subject side;
a diaphragm provided on the optical filter;
an optical filter holding member which is made of a crank-shaped thin plate-like metallic member having two bent portions, the optical filter holding member being formed of a base portion substantially parallel to the optical axis of the image pickup lens, a first extended portion extended from one end of the base portion to the direction vertical to the optical axis of the image pickup lens, separating from the optical axis of the image pickup lens, and a second extended portion extended from the other end of the base portion to the direction vertical to the optical axis of the image pickup lens;
an image pickup element holding member which holds the image pickup element, the image pickup element holding member having a contact portion which the first extended portion provided in the optical filter holding member contacts and a support portion which supports a base portion provided in the optical filter holding member; and
an elastic member provided between the optical filter and the image pickup element, the elastic member pressing the optical filter to the image pickup element to press the diaphragm and the second extended portion, and to press the first extended portion provided in the optical filter holding member to the contact portion of the image pickup element holding member,
wherein the optical filter is attached to the second extended member of the optical filter holding member made of the crank shaped thin plate-like metallic member, so that the level of the subject side surface of the optical filter and the level of the subject side surface of the image pickup element holding member become substantially the same, thereby making a portion projecting in the optical axis direction from the level of the subject side surface of the image pickup element only the thickness of the crank-shaped thin plate-like metallic member forming the optical filter holding member.