Patent ID: 7930894

Claim:
A cooling device that cools a heat generator via a cooling fluid, the cooling device operating based on a cooling signal, the cooling signal having a relationship to a predetermined signal, the cooling device comprising: a cooling fluid cooling section that cools the cooling fluid; a control section that controls the cooling fluid cooling section in accordance with the cooling signal; a signal processing section that supplies the heat generator with a heat generator operation signal, based on the predetermined signal, after supplying the cooling signal to the control section; and a data delay section included in the signal processing section, the data delay section comprising: a delay circuit, a writing/reading section configured to store and retrieve a video signal based on a sync signal from the delay circuit, the sync signal being first input to the delay circuit and the video signal being first input to the writing/reading section corresponding to the predetermined signal, and an analyzing section configured to generate a light source control signal and the cooling signal based on the video signal, the light source control signal output from the analyzing section and the video signal output from the writing/reading section being the heat generator operation signal.