Patent ID: 8157968

Claim:
An oven observing equipment, comprising a housing having an intake part for cooling air and a discharging part for discharging the cooling air after being used for cooling, and an imaging device contained in the housing near the discharging part, wherein a tubular heat insulating part is disposed in the housing, the imaging device is disposed in the housing so as to be accommodated in the tubular heat insulating part and comprises an integrated combination of: an image sensor, plate-like thermoelectric cooling elements surrounding the image sensor, the plate-like thermoelectric cooling elements having heat-absorbing faces disposed about a periphery of the image sensor, a thermal conductor embedded in a gap between the periphery of the image sensor and the heat absorbing faces of the thermoelectric cooling elements, and cooling fins formed on outer heat-radiating faces of the thermoelectric cooling elements, and wherein a first cooling passage for causing the cooling air to flow is formed between an outer wall of the tubular heat insulating part and an inner wall of the housing, peripheries of the cooling fins are surrounded by the tubular heat insulating part, and gaps between the individual cooling fins constitute a second cooling passage for causing the cooling air to flow.