This relates to a radial foil bearing (3) that supports a rotating shaft (1). The radial foil bearing (3) is provided with a top foil (10), a back foil (11), and a bearing housing (12) that houses them. An engagement notch (15) that extends from the inner circumferential edge to the outer circumferential edge of the bearing housing (12) is formed at both sides of the bearing housing (12). An engagement protruding piece (30) that engages with each engagement notch (15) is provided at both side end portions of the back foil (11) on one side in the circumferential direction of the bearing housing (12).

Radial foil bearing

PURPOSE:To detect the brightness of the visual field in front of an automobile in an excellent state by providing an opening part to a dashboard, fitting a polarizing prism thereto, and arranging the illuminance sensor at its rear side. CONSTITUTION:The opening part 12 is formed in a surface of the dash board 11 which faces the windshield, a step part 12A is formed at the upper end part of the opening part 12 as a prism storage part and the polarizing prism 13 having a plane front surface and a prism cut rear surface is fitted thereto, and the illuminance sensor 14 is arranged at its rear side. Then, the prism 13 is so formed that light from before the automobile when incident on the prism surface 13A at an angle thetax is deflected and strikes the photodetection surface of the sensor 14 at right angles. Then, incident light having an angle thetain to an axial line l1, on the other hand, is refracted by the top surface and refracting prism surface and polarized at right angles to the top surface of the dashboard 11, and incident on the sensor 14 as vertical light. Consequently, the directivity of the sensor 14 is improved and the front visual field of the automobile and the detection direction of the sensor are made coincident with each other.

Brightness detecting device

PROBLEM TO BE SOLVED: To obtain an image sheet constituted so that a printed object (image) can be observed through a lens-like sheet while viewing at a certain angle, and also, the rear side of the printed object can be transmitted while viewing at another angle, and to obtain the lens-like sheet used for the image sheet. SOLUTION: On the rear side of the lens-like sheet 1 constituted by forming many convex lenses 3 having projected lines on the surface of a transparent synthetic resin sheet 2, and also, forming many flat parts which are parallel to the convex lenses, printing is displayed so that the image can be observed through the lens-like sheet, and the image sheet is constituted so that the position corresponding to the flat part of the lens-like sheet may function as a non-printed part. COPYRIGHT: (C)2006,JPO&NCIPI

Image sheet and lens-like sheet

The invention discloses a hybrid type dynamic pressure gas journal bearing. The hybrid type dynamic pressure gas journal bearing comprises a bearing outer cover, an inner cover and a foil type elastic piece arranged between the bearing outer cover and the inner cover. The outer circumferential face and the two end faces of the inner sleeve of the bearing are each provided with groove type patterns of the regular shapes. The groove type patterns of one end face are in mirror symmetry with the groove type patterns on the other end face. The axial contour lines of the groove type patterns on the outer circumferential face correspond to the radial contour lines of the groove type patterns on the two end faces one to one. The axial contour lines and the radial contour lines are connected. The hybrid type dynamic pressure gas journal bearing has the rigid characteristic of the high limit speed of a groove type dynamic pressure gas journal bearing and has the flexible characteristics of the high impact resistance and the high loading capacity of a foil type dynamic pressure gas journal bearing, and the hybrid type dynamic pressure gas journal bearing can be applied in the ultrahigh-speed field of large loads.

Hybrid type dynamic pressure gas journal bearing

PURPOSE:To inprove manipulation, read precision, etc, by calculating a frequency value indicated by a cursor and then by display and recording CONSTITUTION:The count value of cursor counter 8 is supplied to cursor signal generating circuit 9 and frequency value calculation circuit 10 Cursor signal generating circuit 9 makes a comparison between the count value and recording-neelde sweep address signal 14 and when the both agrees, a cursor signal is generated and recorded being superposed upon record of an acoustic signal analyzed through signal superposition circuit 13 Frequency value calculation circuit 10, on the other hand, calculates a frequency value corresponding to the count value This result is displayed in number by frequency value display circuit 11 by using a numeric display unit In addition frequency value recording circuit 12 generates a character signal and records the frequency value In this way manipulation and read precision can be improved

Frequency analytical recorder

Dynamic pressure fluid bearing

PURPOSE:Prevention of externaly flying-off of broken mirror pieces is achieved by providing an optical system which deviates the height of the window of an outer tube case off from the rotating plane of a rotating mirror and matching the heights of incident and exit windows and the reflecting face of the mirror.

Oota Masashi

Papers

Dynamic pressure fluid bearing

Rotary mirror scanner