Patent ID: 7815379
Filing Date: 2010-10-19
Classification: G08B,H04N

Abstract:
1. A focus adjustment support device to be mounted onto a lens apparatus included in an image pickup system for supporting focus adjustment of the lens apparatus, the image pickup system comprising: an image pickup apparatus having the lens apparatus including an focus adjusting section requiring a manual adjustment; and a case member disposed at a given position for covering an image pickup range of the lens apparatus and the focus adjusting section, the case member including a portion corresponding to the image pickup range of the lens apparatus, the portion comprising a first light transmissible member having a given optical characteristic that provides an image forming position for the manual focus adjustment, wherein the focus adjustment support device comprises: a second light transmissible member; and a mounting and holding section that holds the second light transmissible member and that mounts the focus adjustment support device onto the lens apparatus in such a manner that a focus of the lens apparatus can be manually adjusted using the focus adjusting section, wherein the second light transmissible member is formed to have an optical characteristic which, in a state where the focus adjustment support device is mounted on the lens apparatus, can provide substantially the same image forming position as in a state where the case member is disposed at the given position, so as to maintain focus adjustment upon removal of the second light transmitting member and repositioning of the case member.