摘要:
A chromatic aberration correcting element that is a simple lens having at least one aspheric surface the radius of curvature of which increases from the optical axis toward the periphery, at least either one of the surfaces being formed as a diffraction lens surface that consists of annular segments in steps that are shifted discretely in a direction in which the lens thickness increases as a function of the distance from the optical axis. Also, a chromatic aberration correcting device having annular segments formed in steps on either a light entrance face or a light exit face or both, the annular segments being composed of planes perpendicular to and concentric with the optical axis.
摘要:
A polarization and birefringence measuring device has an optical source which causes a wide polarized light beam to impinge on a specimen. A photodetecting sensor having picture elements in two dimensions detects a light beam containing information about the specimen. A analyzer is situated in front of the photodetecting sensor and rotated to vary the amount of light which is transmitted. A frame memory memorizes the intensity of each picture element in the photodetecting sensor, and a computer determines the polarization state of parts of the specimen coresponding to the intensity of each picture element sampled. The computer samples the output of the photodetecting sensor when the rotation angle of the analyzer has reached a specified value, and this is memorized by the frame memory. As it may be assumed that the intensity variation of the light beam produced by the rotation of the analyzer is sinusoidal, its polarization state for each picture element can be found by performing no less than three measurements.
摘要:
A chromatic aberration correcting element that is a simple lens having at least one aspheric surface the radius of curvature of which increases from the optical axis toward the periphery, at least either one of the surfaces being formed as a diffraction lens surface that consists of annular segments in steps that are shifted discretely in a direction in which the lens thickness increases as a function of the distance from the optical axis. Also, a chromatic aberration correcting device having annular segments formed in steps on either a light entrance face or a light exit face or both, the annular segments being composed of planes perpendicular to and concentric with the optical axis.
摘要:
An optical system using polarized light is provided wherein a polarized light beam from an optical source is made to coincide with the natural polarization of the optical element acting upon the light beam. The polarization of the light beam from the optical source is adjusted to be effectively the same as the natural polarization of an optical element with birefringence upon which it is incident, and consequently the birefringence of this element has no effect on the convergence of the beam.
摘要:
An image forming apparatus according to an embodiment of the present disclosure includes a memory and a hardware processor coupled to the memory. The hardware processor is configured to: cause a display device to display a setting screen for receiving individual setting values for a plurality of setting items; receive, from a user, individual setting values for a first item, a second item, and a third item in the setting items through the setting screen; specify a recommended setting value for the third item, based on the received setting values for the first item and the second item; and control, upon receiving the setting values for the first item and the second item from the user, display of information for receiving a setting value for the third item included in the setting screen based on the recommended setting value.
摘要:
A display device includes circuitry to determine, based on a display data length and a display area length, whether display data including one or more display components fits within a display area of a screen on which the display data is to be displayed. In case that a determination result indicates that a part of the display data is out of the display area, the circuitry displays the display data including the one or more display components that are reduced based on a difference between the display data length and the display area length.
摘要:
There is provided an information processing apparatus including a page switching unit for switching a display screen from a first Web page screen displayed on a display unit to a second Web page screen, and a switching information notification unit for notifying a page switching information on a notification screen before the second Web page screen is displayed while switching between the pages by the page switching unit, the page switching information is based on information included in at least the second Web page of the first and second Web pages, and the notification screen is a different screen from the first Web page.
摘要:
An electronic apparatus includes an input unit and a controller. The input unit is configured to detect a user operation and output a signal corresponding to the user operation. The controller is configured to cause a data icon to be displayed on a screen of a display unit, judge a drag operation with respect to the data icon based on the signal from the input unit, and cause an icon to be displayed on the screen according to the drag operation, the icon indicating a state of an access authority of data related to the data icon.
摘要:
A media-agitation type pulverizer of the present invention includes: a guide ring installed to radially divide a lower region of a pulverization chamber into an inner section and an annular outer section. A flow of a mixture of a raw material slurry and pulverizing media is formed as a helicoidal flow comprising a secondary flow flowing through a circulation flow path which has an upward flow path and a downward flow path created, respectively, in the outer section and the inner section of the lower region of the pulverization chamber, with respect to the guide ring. A rotational-flow suppressing device is provided within the pulverization chamber and adapted to strengthen the secondary flow of the helicoidal flow, thereby stabilizing the helicoidal flow. As a result, a media-agitation type pulverizer is provided which is capable of creating a uniformized, stable helicoidal flow in a mixture of pulverizing media and a raw material slurry, without unevenness of a centrifugal force distribution, thereby performing pulverization/dispersion uniformly with satisfactory energy efficiency.
摘要:
A SiC semiconductor device includes: a SiC substrate including a first or second conductive type layer and a first conductive type drift layer and including a principal surface having an offset direction; a trench disposed on the drift layer and having a longitudinal direction; and a gate electrode disposed in the trench via a gate insulation film. A sidewall of the trench provides a channel formation surface. The vertical semiconductor device flows current along with the channel formation surface of the trench according to a gate voltage applied to the gate electrode. The offset direction of the SiC substrate is perpendicular to the longitudinal direction of the trench.