Lens barrel for image taking lens

Details Lens barrel for image taking lens Lens barrel for image taking lens

2007-10-02

2007-10-02

Bruce, David (Department: 2809)

Optical: systems and elements

Lens

With support

C361S689000, C361S679090, C361S688000, C361S704000, C361S711000, C361S696000, C361S697000, C361S689000

Reexamination Certificate

active

11452905

ABSTRACT:
A heat sink is attached to a subject-side end portion of a barrel body of a lens barrel. The heat sink is provided with a large number of radiation fins formed in whorl. A heat pipe is disposed between the heat sink and a mount-side end portion of the barrel body. A CCD is fixed to the mount-side end portion of the barrel body. Heat of the CCD is transferred to the heat pipe via the mount-side end portion. Successively, the heat is efficiently transferred to the heat sink by the heat pipe. The heat having been transferred to the heat sink is efficiently radiated into the air by the whorl-like radiation fins regardless of conditions of the lens barrel.

REFERENCES:
patent: 2005/0134727 (2005-06-01), Teramoto et al.
patent: 2006/0067678 (2006-03-01), Senba et al.
patent: 8-179170 (1996-07-01), None
patent: 8-234524 (1996-09-01), None
The Furukawa Electric Co., LTD Product catalog with aplication illustration published on internet at web site: http://www.furukawa.co.jp/english/index.htm.

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