Oven observing equipment and push-out ram having the same

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.