摘要:
A zoom lens comprising, from front to rear, a first lens group of negative power, a second lens group of positive power and a third lens group of negative power, wherein as zooming from the wide-angle end to the telephoto end is performed by moving the first, second and third lens groups, the second and third lens groups both are directed forward and the speed of movement of the third lens group is faster than that of movement of the second lens group, the zoom lens satisfying the following conditions:1
摘要:
An optical system housed within a waterproof package includes, from front to rear, front lens and a rear group of lenses. For both of the front and rear surfaces of the front lens, proper numerical limits of the refractive power of the rear lens group are given to provide an amphibious camera which give a proper optical performance not only in the air but also under water without the necessity of focus adjustment.
摘要:
An objective lens comprising a front lens unit and a rear lens unit with the separation between the two lens units being varied to vary the focal length of the entire system, wherein the front lens unit has a positive refractive power and consists of a positive lens of strong convex curvature toward the front, a negative doublet lens of a negative lens and a positive lens cemented together in this order from the front, and a positive lens sub-unit, and the rear lens unit has a negative refractive power and comprises a positive lens and a negative lens. Particularly the double lens is so designed that the comatic aberration in the intermediate zone of the image frame is stabilized throughout the entire range of variation of the focal length, and the halo in the intermediate zone in the telephoto end is well corrected.
摘要:
A radiographic image capturing apparatus includes a radiation source for applying a radiation to an object to be examined, a radiation detector for detecting the radiation which has passed through the object and converting the detected radiation into a radiographic image, a positional information acquiring unit for acquiring positional information of the object, and an image capturing angle changer for changing an image capturing angle of the radiation source with respect to the radiation detector based on the positional information in a stereographic image capturing process for capturing at least two radiographic images of the object by applying the radiation to the object from directions which are different from each other.
摘要:
A mammographic system as a radiation image capturing apparatus includes a radiation source for emitting radiation, a solid-state detector for detecting radiation emitted from the radiation source and generating a radiation image based on such radiation, AEC sensors for detecting a radiation dose emitted from the radiation source, a radiation source controller for controlling the dose emitted from the radiation source based on output signals from the AEC sensors, a reference output storage unit for storing reference output ranges defining respective ranges of reference output signals for the solid-state detector and the AEC sensors, and a malfunction detector for comparing output signals generated by the solid-state detector and the AEC sensors with the respective reference output ranges to detect a malfunction of the solid-state detector, the AEC sensors, or the radiation source.
摘要:
A new and distinct cultivar of Ipomoea plant named ‘Kyuikukan 5’, characterized by its compact and trailing growth habit and cordate-shaped leaves that are light green when developing and becoming dark purple with further development.
摘要:
The present invention relates to a radiation image capturing system and a method of adjusting the same. An image capturing condition setting unit sets a target, a filter, and a tube voltage as image capturing conditions depending on the sensitivity characteristics of a radiation conversion panel that is selected by a panel selector, in a radiation source and a radiation source control apparatus. Radiation image information of a subject is recorded in the radiation conversion panel according to the set image capturing conditions. An image processing condition setting unit sets image processing conditions corresponding to the sensitivity characteristics of the radiation conversion panel in an image processor. The image processor processes the radiation image information acquired from the radiation conversion panel according to the set image processing conditions.
摘要:
A method for manufacturing a substrate for mounting a semiconductor element includes: a step for forming a predetermined resist pattern by affixing resists on both faces of a base material including a metallic thin plate and using the resist of one of the faces as a masking for plating; a step for performing an etching of a predetermined position on a base material exposed from the resist pattern; a step for forming a plating layer having at least three layers including a lower, a middle, and an upper layer on the etched base material; a step for separating the resists affixed to both faces of a base material; and a step for performing an etching of the middle plating layer to make the middle plating layer narrower than the upper and lower plating layers.
摘要:
A mammographic system as a radiation image capturing apparatus includes a radiation source for emitting a radiation, AEC sensors for detecting the radiation emitted from the radiation source and acquiring radiation image information for exposure control, a mammary gland position identifier for selecting at least one of the AEC sensors for outputting given radiation dose information based on the radiation dose information acquired by the AEC sensors thereby to identify a mammary gland position as a region of interest of a subject, a weighting coefficient allocator for multiplying output signals from the AEC sensors before the mammary gland position is identified by the mammary gland position identifier, by respective weighting coefficients depending on the installed positions of the AEC sensors, and a radiation source controller for controlling the radiation dose applied from the radiation source to the identified mammary gland position.
摘要:
A new and distinct cultivar of Ipomoea plant named ‘Kyuikukan 4’, characterized by its compact and outwardly trailing growth habit and dark green-colored foliage.