An object of the present invention is to provide a test apparatus capable of avoiding erroneous diagnosis and performing a cancer screening including a very fine cancer by a simple method. A test apparatus includes a first emission unit that emits light toward a subject, a first colored translucent member provided in an optical path of light emitted from the emission unit, and a resonance unit. It includes a substance 50 and a beam splitter 130 that combines light from the subject and energy from the resonance substance 50. [Selection diagram] FIG.【課題】誤診を回避するとともに、簡易な方法で超微細ながんを含めた、がん検診を行える被験装置を提供する。【解決手段】被験装置に、被験者に向けて光を出射する第1の出射部10と、出射部10から出射された光の光路に設けられた第1の色付透光性部材20及び共鳴物質50と、被験者からの光と共鳴物質50からのエネルギーとを合成するビームスプリッタ130と、を備える。【選択図】図5