Abstract: A deviation amount of a top position of a convex surface of a protruding portion formed on a flat member and a deepest position of a concave surface on the back side of the convex surface, is obtained in XY-coordinates in a plane parallel to an extension plane of the flat member. An annular image obtained by illuminating the concave surface is photographed, and the XY-coordinates of the deepest position of the concave surface are obtained based on the image thus obtained. Regarding the convex surface, the X-coordinate and the Y-coordinate of the top position of the convex surface are respectively obtained by a front camera having an image taking optical axis parallel to the extension plane of the flat member and a side camera having an image taking optical axis parallel to the plane and perpendicular to the image taking optical axis of the front camera, and the deviation amount and deviation direction are obtained based on their respective XY-coordinates obtained.

Abstract: The present invention provides a measurement apparatus for obtaining a suitable position on a suspension where a more miniature magnetic head slider is to be mounted to the suspension, the apparatus including a front camera having a photographing optical axis within a plane parallel to a plane of extension of a suspension and directed to the suspension, and a side camera having a photographing optical axis within the parallel plane and which is different from that of the front camera. Coordinates of a top portion of a convex surface of a dimple formed in the suspension are obtained with these cameras. The resultant coordinates and coordinates of the deepest portion of a recess surface of the dimple are correlated with each other, whereby in actual mounting of the magnetic head slider, the deepest portion of the recess surface of the dimple which is readily recognized is measured.

Abstract: The present invention aims at providing a lighting apparatus which is to be installed in a color camera, which is capable of providing the stable quantity of light from a light source such as an LED, and which is capable of stabilizing color tones of an image captured with the color camera. In order to attain this object, in the lighting apparatus according to the present invention, the temperature control for the camera is also simultaneously carried out using a thermal transfer member for enhancing heat transfer between a Peltier element used for the temperature control for an LED case with built-in LEDs, and the LED case.

Abstract: The present invention provides a measurement apparatus for obtaining a suitable position on a suspension where a more miniature magnetic head slider is to be mounted to the suspension, the apparatus including a front camera having a photographing optical axis within a plane parallel to a plane of extension of a suspension and directed to the suspension, and a side camera having a photographing optical axis within the parallel plane and which is different from that of the front camera. Coordinates of a top portion of a convex surface of a dimple formed in the suspension are obtained with these cameras. The resultant coordinates and coordinates of the deepest portion of a recess surface of the dimple are correlated with each other, whereby in actual mounting of the magnetic head slider, the deepest portion of the recess surface of the dimple which is readily recognized is measured.

Abstract: A deviation amount of a top position of a convex surface of a protruding portion formed on a flat member and a deepest position of a concave surface on the back side of the convex surface, is obtained in XY-coordinates in a plane parallel to an extension plane of the flat member. An annular image obtained by illuminating the concave surface is photographed, and the XY-coordinates of the deepest position of the concave surface are obtained based on the image thus obtained. Regarding the convex surface, the X-coordinate and the Y-coordinate of the top position of the convex surface are respectively obtained by a front camera having an image taking optical axis parallel to the extension plane of the flat member and a side camera having an image taking optical axis parallel to the plane and perpendicular to the image taking optical axis of the front camera, and the deviation amount and deviation direction are obtained based on their respective XY-coordinates obtained.

Abstract: The present invention has as its object the provision of a jig for carrying out, in a position recognizing a subject having cameras for photographing a subject from a plurality of directions, the position calibration or the like of these cameras. The jig is disposed as a jig for calibration near the photographing center in the plurality of cameras, and is comprised of a portion for fixing and supporting, for example, a true sphere in which the centers found from photographed images obtained by the cameras for photographing the jig spatially coincide with one another.

Abstract: The present invention aims at providing a lighting apparatus which is simple in configuration and which is capable of providing a stable light quantity from a light source constituted by an LED or the like. In the present invention, attention is paid to the fact that an applied voltage to an LED changes in correspondence to a temperature of the LED, and hence a temperature control device constituted by a Peltier element or the like is operated in correspondence to the quantity of change in applied voltage to the LED.

Abstract: The present invention aims at providing a lighting apparatus which is to be installed in a color camera, which is capable of providing the stable quantity of light from a light source such as an LED, and which is capable of stabilizing color tones of an image captured with the color camera. In order to attain this object, in the lighting apparatus according to the present invention, the temperature control for the camera is also simultaneously carried out using a thermal transfer member for enhancing heat transfer between a Peltier element used for the temperature control for an LED case with built-in LEDs, and the LED case.