| 摘要 |
A projector including a light source lamp including a light source, a reflector, and a flange portion, a lamp case, and a cooling fan includes a heat radiating member for cooling the light source lamp, the heat radiating member includes a flange attaching portion, a fixing portion and a heat radiating fin portion, the heat radiating fin portion is formed by a shape memory alloy brought into close contact with an outer peripheral face of the light source lamp when temperature at a vicinity of the outer peripheral face becomes higher than predetermined temperature and separated from the outer peripheral face when the temperature at the vicinity of the outer peripheral face becomes lower than the predetermined temperature, and the heat radiating fin portion includes a fin portion and an opening portion.
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