Patent ID: 8563933

Claim:
A thermal detector comprising: a substrate; a thermal detector element including a light absorbing film; and a support member supported on the substrate and supporting the thermal detector element, the support member having a mounting portion for mounting the thermal detector element, and a first arm connected at one end to the mounting portion and connected at another end to the substrate, each of the mounting portion and the first arm having a first member disposed toward the substrate, a transverse width of a transverse cross-sectional shape of the first member being set to a first width, a second member disposed toward the thermal detector element and facing the first member, a transverse width of a transverse cross-sectional shape of the second member being set to the first width, and at least one third member linking the first member and the second member, a transverse width of a transverse cross-sectional shape of the at least one third member being set to a second width that is smaller than the first width, the third member of the mounting portion and the third member of the first arm being conjoined relative to each other and continuously extending between the mounting portion and the first arm.