48results about How to "Stable writing" patented technology

A liquid crystal lens element is provided, which can realize a small sized element having no moving part, and which has a lens function of switching the focal length among multiple focal lengths of at least 3 types according to an applied voltage.

A liquid crystal lens element 10 is provided, which comprises a pair of transparent substrates 11 and 12 and a liquid crystal layer sandwiched between these substrates, wherein focal lengths of light transmitted through the liquid crystal 16 is changed depending on a voltage applied to the liquid crystal 16, the liquid crystal lens element 10 has a Fresnel lens-shaped concave-convex portion 17 and a liquid crystal layer 16A, and configured so that the refractive index n of the liquid crystal layer 16A changes from a refractive index n₁ at a time of no application to a refractive index n₂ at a time of voltage application, a refractive index n_s of the concave-convex portion 17 is a value between the refractive indexes n₁ and n₂ and satisfies a predetermined relation, and the maximum depth d of the concave-convex portion 17 satisfies a predetermined relation, the focal length can be switched by switching an applied voltage to the liquid crystal layer 16A under the predetermined conditions.

A liquid crystal lens element having a lens function is provided, which is small sized without having moving part, and which can stably carry out correction of spherical aberration containing a power component corresponding to focal point change of incident light.

A liquid crystal lens element which changes a focal length of light transmitted through a liquid crystal 16 according to the magnitude of the voltage applied to the liquid crystal 16 sandwiched between a pair of transparent substrates 11 and 12, which comprises transparent electrodes 13 and 14 provided on the respective transparent substrates 11 and 12 for applying a voltage for the liquid crystal 16, and a concave-convex portion 17 having a saw-tooth-shaped cross-sectional shape having a rotational symmetry about an optical axis and formed on one surface of the transparent electrode 13 with a transparent material, wherein at least concave portions of the concave-convex portion 17 are filled with the liquid crystal 16 so as to change the substantial refractive index of the liquid crystal 16 according to the magnitude of applied voltage.

Stable writing is performed in a super high density hard disk where writing by magnetic field is difficult. A layered thin film structure including at least a magnetic metallic layer/a non-magnetic metallic layer/a magnetic metallic layer is formed, and a metallic probe is brought close to this multilayer film on the order of nano-meters. A quantum well state created in the multilayer film is changed by applying a voltage between the metallic probe and the multilayer film, resulting in a relative magnetic field between the magnetic metallic layers being changed. At this time, an assistance magnetic field is applied in the writing magnetization direction.

A ternary content addressable memory (TCAM) cell (100) can include two memory elements (102-0 and 102-1) with a single bit line (106-0 and 106-1) per memory element. A TCAM cell (100) can also include a compare stack (104) and two word lines (114 and 116) that can connect to each memory element (102-0 and 102-1). The memory elements (102-0 and 102-1) can include SRAM type memory cells with one of two data terminals connected to a pre-write potential (Vpre, which can be a ground potential, or the like). Write operations can include pre-setting the data values of memory elements (102-0 and 102-1) to the pre-write potential prior to providing write data via the bit lines (106-0 and 106-1).

The present invention provides a magneto-resistive element capable of stably performing information writing operation by efficiently using a magnetic field generated by current flowing in a conductor and to a magnetic memory device having the same. A magneto-resistive element is constructed so that the area of a cross section orthogonal to the circumferential direction of a pair of magnetic yokes becomes the smallest in connection parts facing stacked bodies. With the configuration, magnetic flux density of return magnetic fields generated by passing write current to write bit lines and write word lines can be made the highest in the connection parts. Thus, information can be written efficiently and stably.

The invention provides a straight liquid type water isolator. The straight liquid type water isolator comprises an outer circular wall, a bottom circular wall, a plurality of parallel water isolation layers and a connecting column. At least one groove is formed in the surface of the connecting column. The water isolation layers are arranged between the outer circular wall and the bottom circular wall. The connecting column is connected with the outer circular wall and the bottom circular wall and penetrates the multiple water isolation layers. An ink storage structure formed by the straight liquid type water isolator divides ink layer by layer. Compared with a roll-packing core ink storage structure, the straight liquid type water isolator is more stable and more superior in performance. According to a gel pen with the straight liquid type water isolator, the ink filling amount can be increased multiply, the writing length of the product can be greatly increased, all indexes are higher than the requirements of the national standard and the industry standard, and writing with the product is stable all the time.

The invention discloses an optical biological detection method based on tri-doped lithium niobate crystal. The optical biological method comprises the steps of: forming a waveguide grating substrate base on the tri-doped lithium niobate crystal, forming a waveguide on the substrate, forming a holographic bragg grating on the waveguide, forming a biological recognition molecule on the holographic bragg grating, forming a target molecule on the biological recognition molecule, forming waveguide grating reflection light wavelength change on the target molecule, and forming biomolecule concentration on the waveguide grating reflection light wavelength change. The method has the characteristic of full-gloss fast writing in a non-volatile holographic grating, and simultaneously realizes low cost, and high-precision, multi-flux, quick quantitative detection of the biological molecule, is applicable to quantitatively detecting micro concentration of harmful components, pesticide residue, narcotics and the like in the food, and has an extensive market prospect.

The present invention provides a magnetic memory device capable of reducing a loss of a magnetic field generated by currents flowing in a write line and performing writing stably, and a magnetic memory cell mounted on the magnetic memory device. Further, the invention provides a method for easily manufacturing such a magnetic memory device. A magnetic memory cell includes: stacked bodies each including a magneto-sensitive layer whose magnetization direction changes according to an external magnetic field, and constructed so that current flows in a direction perpendicular to a stack layer surface; and a toroidal magnetic layer disposed between the first and second stacked bodies so that the direction along the stack layer surface is set as an axial direction, and constructed so as to be penetrated by a plurality of conductors along the axial direction. Thus, strength reduction in a circulating magnetic field generated in a toroidal magnetic layer can be suppressed, and the magnetization direction of a magneto-sensitive layer in each of the first and second stacked bodies can be inverted by a smaller write current.

The present invention provides a instrument pen cap for writing which improves buffering effect and prevents generating pen cocoon as well as makes the writing tool insert easily and increases the cling degree with the writing tool, thus implement writing stably. In the pen cap 1 which suits on the axis of the writing tool P and possesses cylinder-shape spring pen cap main body 2,many small independent warts 3 intersperses on the internal circle surface 2a of the given spring pen cap main body2.

The present invention aims to reduce heat fluctuations of a memory cell and thereby provide a stable writing operation when a magnetization reversal process not involving a reversal magnetic field is used for writing into the memory cell. The magnetic memory cell has a structure where first and second magnetization pinned terminals are connected, with a space therebetween, to one surface of a non-magnetic region, and a magnetization free terminal is connected to the other surface. Magnetization directions of the first and second magnetization pinned terminals are anti-parallel to each other. Writing is performed by controlling a polarity of a current flowing between the first and second magnetization pinned terminals through the non-magnetic region and thus reversing magnetization of the magnetization free terminal. Reading is performed by detecting a magnetic resistance attributable to a change in relative magnetization direction between the first magnetization pinned terminal and the magnetization free terminal.

A mobile English teaching blackboard with a dust-absorbing function, comprising a board body, two supporting boards are fixedly connected to the lower side of the board body, two rollers are fixedly connected to the lower side of the supporting boards, and the two supporting boards A base plate is fixedly connected between the bottoms, a support column is fixedly connected to the center of the base plate, and the top of the support column is fixedly connected to the lower side of the plate body. A vertical through hole is opened in the support column, and the cross section of the vertical through hole is rectangular. A rack is arranged in the vertical through hole, and the teeth on the rack are arranged to the right. The bottom end of the rack is fixedly connected with a mounting plate, and stabilizing blocks are fixedly connected around the lower side of the mounting plate; the right side of the support column The wall is provided with a vertical moving slot, the right side of the rack is meshed with a gear, the middle of the gear is fixedly connected with a rotating shaft, and the front and rear sides of the support plate are fixedly connected with baffles. The invention has the advantages of reasonable structural design, convenient use and the mutual conversion between blackboard writing and moving states, and has certain popularization and application value.

A magnetic tunnel junction device and a magnetic random access memory based on a synthetic antiferromagnetic pinned layer are disclosed, relating to a multilayer structure which is suitable for a pinned layer, namely a synthetic antiferromagnetic device. Antiferromagnetic coupling of the synthetic antiferromagnetic device can be enhanced by electric field. The synthetic antiferromagnetic device can be used as a pinned layer of the magnetic tunnel junction, and the antiferromagnetic coupling is enhanced under the electric field to ensure that a ferromagnetic layer, which is close to a barrier layer, of the pinned layer will not be switched, thereby achieving stable data writing. The magnetic random access memory is formed by the magnetic tunnel junction based on the synthetic antiferromagnetic pinned layer, has advantages such as, high density, low power consumption, high speed, radiation resistance and non-volatility.

The invention relates to a finely-adjustable anti-reflective blackboard. The finely-adjustable anti-reflective blackboard comprises two blackboards which are connected together through a hinge and are movably arranged in a blackboard frame, wherein fine adjustment mechanisms are arranged at the outer edges of back face plates of the blackboards; cranking hand wheels of the fine adjustment mechanisms drive sleeves to turn, meanwhile, spring devices are contracted, the sleeves drive bevel gear groups, the bevel gear groups drive cams to move, the blackboards are jacked up by the cams, and fine adjustment or the change of positions of reflective areas of the blackboards is realized, so that the avoidance of light reflection is realized; after a proper angle is obtained through adjusting, the cranking hand wheels are released and return under the action of springs, self-locking mechanisms are enabled to be in a locked state, and the reverse self-locking of the blackboards is realized. According to the finely-adjustable anti-reflective blackboard, when visual sense is affected due to lighting changes of a classroom, a turning angle of the blackboard can be appropriately adjusted to remove light reflection, the utilization ratio of the blackboard is greatly increased, and the manufacturing cost is low.