| 摘要 |
In the bulb cassette in the related art, a mounting fixture can be prevented from coming off a case. However, when a space in the case for accommodating a light bulb is small, there arises a problem such that a wall surface which defines the space is thermally deformed by heat from the light bulb, and hence the product value is lowered, and in the worst case, the entire case may become unusable due to thermal deformation of the wall surface. In a case in which a case formed of resin material having low thermal resistant property such as polypropylene and a wall surface which is in the proximity with a light bulb built in the case exist, a bulb cassette for mounting the light bulb in the case is formed of thermal resistant resin, and a heat shield wall interposed between the light bulb and the wall surface is formed so as to continue from the bulb cassette. |
