Abstract: Apparatus for inspecting a surface of an object to be measured. The light source applies light to the surface. An objective lens opposite the surface receives reflected light. A light detector detects a component of the light incident on the lens from a direction parallel to its optical axis and obtains its light quantity. A slit is provided in the optical path between the objective lens and the detector in order to narrow the light detection extent in the surface to be measured. The surface condition of the object can be measured with a good accuracy independently of the shape of the object.

Abstract: By using a surface inspection apparatus comprising a light source 11 for applying a light to a surface of an object 2 to be measured, an objective lens 12 opposite to the surface of the object 2 to be measured and for receiving a reflected light applied from the light source 11 and reflected on the surface of the object 2 to be measured, light detection means 13 for detecting a component incident on the objective lens 12 from a parallel direction with its optical axis in the reflected light passing through this objective lens 12 and obtaining its light quantity, and a slit 29 provided in the optical path between the objective lens 12 and light detection means 13, because the light detection extent in the surface of the object 2 to be measured can be narrowed with the slit 29, its surface condition can be measured with a good accuracy independently of the shape of the object to be measured.

Abstract: A propylene-based resin composition comprising (A) from 42 to 95% by weight of a propylene-based resin having an isotactic pentad fraction of at least 95%, (B) from 1 to 10% by weight of an ethylene-C.sub.3 -C.sub.18 .alpha.-olefin copolymer having a density of from 0.850 to 0.875 g/cm.sup.3 and a melt index of from 0.01 to 25 g/10 min, and prepared in the presence of a metallocene catalyst, (C) from 2 to 18% by weight of a high-density polyethylene having a density of from 0.93 to 0.97 g/cm.sup.3 and a melt index of from 0.5 to 10 g/10 min, and (D) from 2 to 35% by weight of talc, the total of the components (B) and (C) being from 3 to 23% by weight.