36results about How to "Wide field" patented technology

A compact high-resolution imaging lens which provides a wide field of view of 80 degrees or more and corrects various aberrations properly. Designed for a solid-state image sensor, the imaging lens includes constituent lenses arranged in the following order from an object side to an image side: a first positive (refractive power) lens having a convex object-side surface; a second negative lens having a concave image-side surface; a third positive lens as a double-sided aspheric lens having a convex object-side surface; a fourth positive lens having a convex image-side surface; a fifth lens as a double-sided aspheric lens having a concave image-side surface; and a sixth negative lens having a concave image-side surface. The image-side surface of the sixth lens has an aspheric shape with a pole-change point in a position off an optical axis.

A visibility support system is provided which displays a wide field of view while absorbing camera installation errors. The visibility support system obtains a first conversion matrix H₁ for projecting a captured image onto the ground, while a second conversion matrix H₂ for projecting the captured image on a plane different from the ground (e.g. no-conversion unit matrix) is set. An extended high-angle view image is divided into a first region corresponding to the vehicle periphery and a second region corresponding to farther away from the vehicle, and a high-angle view image based on H₁ is displayed in the first region, whereas an image based on a weight-added conversion matrix in which H₁ and H₂ are weight-added is displayed in the second region. Weight for the weight-addition is varied according to a distance from the border of the first and second regions to seamlessly join the images in both regions.

A device for tamponade of body cavities and for mechanical anchoring of a catheter, the device including a flexible tube segment (2) having an inner wall (4) and an outer wall (6) that surround an interior space (8), wherein the tube segment (2) is inflatable, and is configured without through-passing support bodies so that a displacement of tube wall material between the inner wall (4) and the outer wall (6) of the tube segment (2) is possible by inflation of the tube segment, wherein the tube segment is provided with two ends (7,9), which are fastened to a same closing element (10), configured so that a torus geometry is striven for as the inflatable tube segment (2) is inflated and the closing element (10) is a pipe nipple and the two ends (7,9) of the tube segment (2) are joined together fluid-tightly.

Embodiments of the present invention relate to a high-resolution imaging device with wide field and extended focus comprising a beam generator for generating a plurality of nondiffracting beams and a scanning mechanism for moving the plurality of nondiffracting beams relative to the object to illuminate a volume of the object. The high-resolution imaging device also comprises surface element and a body having a light detector layer outside the surface element. The light detector layer has a light detector configured to measure light data associated with the plurality of nondiffracting beams illuminating the volume of the object. In some cases, the high-resolution imaging device also includes a lens inside of the light detector layer. The lens is configured to focus the light on the light detector surface.

The present invention relates to a method of computer based data card software downloading and updating, in which, the data card connects with computer via data communication interface and acts the power on initial process at same time, the data card downloads software kit from computer to RAM memory, and the data card operates the software kit downloaded to the RAM memory. With this method of computer based data card software downloading and updating, no any more expensive Flash memory to be used in the data card, a lower cost is thus resulted, the data card failure resulted from Flash memory damage could be avoided and hence the data card reliability is increased; In course of data card downloading the update program and software from computer, it just needs re-update again only even though in fault, the complete operation is convenient and rapid with a wide suitable field, this lays the foundation of the advancing and development for the data communication peripheral equipment technology of portable equipment.

A game device, which monitors with a virtual camera a picture of a game being proceeded in a virtual space by a first object controlled by a player and a second object controlled by a computer or an opponent and displays a picture on the screen of a monitor, includes a camera position switch ordering unit for issuing switching orders to switch the position of the virtual camera to a first position which shows the front of the first object and to a second position which shows the front of the first object from the rear of the first object, and a symbol displaying unit for displaying a symbol representing the second object on the monitor screen in correspondence with the switching order to switch the position of the virtual camera to the first position upon the second object existing behind the first object.

The present invention provides a grease composition having an excellent fretting wear resistance in a wide temperature region from low to high temperatures and particularly even at low temperatures and a rolling bearing in which the grease composition is packed. A grease composition (7) is packed inside a grease-packed bearing (1). The grease composition (7) contains base oil, a thickener, and an additive. The additive contains at least, one kind selected from among a phosphite ester shown by a chemical formula (1) or a phosphite ester shown by a chemical formula (2). The content of the phosphite ester is 0.5 to 4 parts by weight for 100 parts by weight which is the total of the amount of the base oil and that of the thickener.

(In the chemical formulas (1) and (2), R₁, R₂, R₃, R₄, and R₅ denote a methyl group or an ethyl group respectively. R₁ and R₂ are the same group or different groups. R₃, R₄, and R₅ are the same group or different groups).

A compact low-cost imaging lens which provides brightness with an F-value of 2.5 or less and a wide field of view and corrects aberrations properly, meeting the demand for low-profileness. The imaging lens elements are arranged in order from an object side, an aperture stop, positive first lens having convex object-side and image-side surfaces, negative meniscus second lens having a concave image-side surface, positive third lens having at least one aspheric surface, positive double-sided aspheric fourth lens, and negative double-sided aspheric fifth lens having concave object-side and image-side surfaces with its image-side surface having a pole-change point off the axis. It satisfies conditional expressions below:

0.5<f1/f<1.0  (1)

10.0<f3/f  (2)

0.8<(r3+r4)/(r3−r4)<2.0  (3)

• • where
  • f: focal length of the imaging lens overall optical system
  • f1: first lens focal length
  • f3: third lens focal length
  • r3: curvature radius of the second lens object-side surface
  • r4: curvature radius of the second lens image-side surface.

The present invention relates to a device with a hydrophobic and/or lipophobic surface comprising a carpet of nanofibers ( 20 ), wherein these nanofibers ( 20 ) are totally cladded with a hydrophobic and/or lipophobic continuous film, and wherein the surface ( 22 ) between these nanofibers is covered with a layer of this same polymer. The invention also relates to a method for making such a device.

The embodiment of the invention provides a logistics distribution method and a device thereof. The method specifically comprises steps: a mobile instruction is sent to a mobile self-pickup device in a preset region, so that the mobile self-pickup device moves to a position region of a vehicle corresponding to a stored parcel, wherein preset region information carried in a logistics distribution request corresponding to the stored parcel matches information of the preset region, and the distance between the position region of the vehicle and a stop position of the vehicle is less than a preset threshold; and an opening instruction is sent to the mobile self-pickup device, so as to take the stored parcel from the mobile self-pickup device. Thus, the efficiency of hard-rebooting a terminal can be improved, and the convenience of goods pickup in logistics can be improved.

A reflecting device with wide viewing angle, reduced distortion and anamorphosis and reduced doubling of reflected images, particularly for vehicles. The reflecting device has a monolithic body made of transparent plastic material and comprising an internal surface and an external surface, the latter facing the objects to be detected and being arranged opposite the internal surface. At least the external surface is constituted by an anamorphic surface which is non-revolution surface.

A retroreflective device comprising a substantially spherical graded refractive index lens, referred to as a GRIN-sphere lens (2), a reflective part for retroreflecting (6) a radiation beam (B) passing through the graded refractive index lens and, at least partially surrounding the lens, a transparent material (4) having a substantially uniform refractive index.

The invention relates to a medical tomosynthesis system (10) having an interventional device (15) and an image acquisition device (11, 12) for acquiring images of a subject volume in a plurality of angular positions around the subject volume. In the system, a three-dimensional geometrical model of the interventional unit is used to identify the projection angles of the image acquisition device that actually can be used. Preferably, this three-dimensional model is achieved by reconstructing it from projection images acquired with the X-ray image acquisition device. The invention also relates to a method for acquiring images with such a system.

A method and device applicable to a sewing machine which has a needle and a gripper with a horizontally positioned lower bobbin for executing a seam with stitches in a sewing material being sewn, for compensating a deficiency in a longitudinal shift of the needle during a stitch being caused by an arcuate movement of the needle when it shifts sideways in a stitch, wherein the method includes the material being advanced by a feeder a length y_n in the longitudinal direction of the seam on the basis of the seam setting, and wherein the sewing machine has a control including an algorithm causing the feed motor to set the feeder, so that at each stitch which includes sideways shifts of the needle it advances the sewing material a correction length e_n in the longitudinal direction of the seam, thereby compensating a corresponding deficiency in the needle's longitudinal shift relative to the material during the stitch being caused by the needle's arcuate sideways movement.

A lens system includes four lens elements which are, in order from an object side to an image side: a first lens element, a second lens element, a third lens element and a fourth lens element. Each of the four lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. At least one of the object-side surface and the image-side surface of the first lens element has at least one inflection point. The fourth lens element has positive refractive power, the object-side surface of the fourth lens element is convex in a paraxial region thereof, and at least one of the object-side surface and the image-side surface of the fourth lens element has at least one inflection point.

A confocal scanning laser ophthalmoscope (cSLO) includes an illumination module, an acquisition module, a scanning element and an imaging lens group. With the scanning element at the nominal position and the illumination beam passing through the centers of the lenses, by controlling the deviation angle between the incident marginal rays and the reflected rays on each surface of the lenses in the illumination path to no less than 0.5 degree.