The present invention provides a pressure relief valve, which achieves a reliable sealed structure in a valve holder 31 without the valve holder 31 jutting far out from a common rail, assures stability of operation of a valve spring 11 in a valve holder 31, and is capable of being manufactured at low cost and can be made compact. The metal line of a semiconductor device includes an insulation layer formed on a semiconductor substrate. In addition, the following parameters of the optical system are optimally determined: a lens open angle \u03b8 of a surface of the negative lens on the reduction conjugation side, an index of refraction Ndn and an Abbe number \u03bddn of a material of the negative lens for a d-line, and a relative partial dispersion \u03b8gFn of the material of the negative lens for a g-line and an F-line.