| 摘要 |
<p>An objective lens (200) used for a microscope includes a lens(es) (222), an iris diaphragm (230) and a tubular body (210). The lens(es) (222),which is provided in a manner facing an object (A), transmits light reflected from a measuring surface of the object (A). The iris diaphragm (230), which is provided behind the lens(es) (222), changes an aperture diameter of a light-transmissive aperture of a light-transmissive surface that is substantially orthogonal to a main optical axis of the light transmitted through the lens(es) (222). The tubular body (210), which is detachably mounted on a revolving nosepiece of a trunk that includes a zoom imaging lens(es) for forming an image from the light ' transmitted through the light-transmissive aperture, holds the lens(es) (222) and the iris diaphragm (230).</p> |
