摘要:
In an optical deflector apparatus, an optical deflector chip includes a mirror, an actuator adapted to rock the mirror, and first pads on a front surface of the optical deflector chip and connected to the actuator. A first substrate includes second pads on a back surface of the first substrate, and an opening is formed in the first substrate. The front surface of the optical deflector chip is adhered to the back surface of the first substrate in such a way that the first pads of the optical deflector chip are in contact with respective ones of the second pads of the first substrate and the mirror opposes the opening. A back surface of said optical deflector chip is adhered to a front surface of a second substrate.
摘要:
Provided are: a sheet-like ball material including a fibrous base material, and an elastic polymer cover layer that is laminated on a surface of the fibrous base material, in which continuous pebbles and discontinuous valleys are formed on a surface of the cover layer, the valleys discontinuously formed are formed at average intervals of 0.5 to 3 mm, the valley has a depth of 50 to 500 μm, a vertical projected area of each valley is 1 to 5 mm2, and a total area of the vertical projected area of each valley accounts for 3 to 30% relative to a surface area of the elastic polymer cover layer; a ball used for volleyball or beach volleyball including the sheet-like ball material, which is excellent in the controllability for all types of ball plays such as tossing and serving in the smoothness of the attenuation degree in the ball speed of the ball during flight of the ball, and in the design, e.g., three-dimensional shape, which is not realized in a heretofore-existing ball, and also has a sufficient surface abrasion resistance; and a sheet-like ball material suitably used for such balls.
摘要:
An optical deflector includes a mirror having a reflective plane; a torsion bar extending outwardly from a side of said mirror; a support surrounding said mirror; a piezoelectric cantilever including a supporting body and a piezoelectric body formed on the supporting body, one end of said piezoelectric cantilever being connected to said torsion bar, the other end of the piezoelectric cantilever being connected to said support, said piezoelectric cantilever, upon application of a driving voltage to the piezoelectric body, exhibiting a bending deformation due to piezoelectricity so as to rotate said torsion bar, thereby rotarily driving said mirror through said torsion bar; and an impact attenuator connected to said support, the impact attenuator being disposed in a gap between said mirror and said support.
摘要:
A semiconductor light emitting device is provided which can prevent the reflectance of a metal film from deteriorating due to heat aging and can prevent wire bonding performance of the semiconductor light emitting element from deteriorating due to the diffusion of Ni contained in a Ni barrier metal layer to the reflection layer during die-bonding of the semiconductor light emitting element. The semiconductor light emitting device includes a metal film formed on a substrate and a semiconductor light emitting element. The metal film includes a barrier metal layer configured to prevent a predetermined material from being diffused into the substrate, a metal layer formed on the barrier metal layer; and a reflection layer formed on the metal layer. The reflection layer is configured to reflect light emitted from the semiconductor light emitting element, and the metal layer is made of Ti or Pd.
摘要:
A method of producing an entangled sheet of microfine long fibers using long fibers for forming microfine fibers. The method includes a step of forming a long-fiber web made of long fibers for forming microfine fibers, at least one component of the long fibers being a water-soluble, thermoplastic polyvinyl alcohol resin; a step of entangling the long-fiber web to form a long-fiber entangled sheet; a step of shrinking the long-fiber entangled sheet to form a long-fiber shrunk sheet; and a step of converting the long fibers for forming microfine fibers in the long-fiber shrunk sheet to microfine long fibers, thereby producing the entangled sheet of microfine long fibers. The step of entangling is conducted so as to allow the long-fiber entangled sheet to have an interlaminar peel strength of 2 kg/2.5 cm or more. The step of shrinking is conducted so as to shrink in an areal shrinkage of 35% or more.
摘要:
An LED can include a silicon substrate and a pair of electrodes formed inside a horn that is formed on the silicon substrate by anisotropic etching. The LED can include an LED chip mounted inside the horn, the LED chip being electrically connected to the pair of electrodes. A resin mold made of a resin material can be filled in the horn.
摘要:
The leather-like sheet substrate of the invention comprises a nonwoven fabric of three-dimensionally entangled superfine fibers (A) of at most 0.5 dtex in fineness and a polymer elastomer (B) filled in the entangled interspaces of the nonwoven fabric, in which the superfine fibers (A) comprise an organophosphorus component-copolymerized polyester and the polymer elastomer (B) contains a metal hydroxide or is copolymerized with an organophosphorus component. The leather-like sheet substrate of the invention and artificial leather obtained from it contain no halogen and are resistant to flames. These have a soft feel and are suitable to applications in the interior field that requires flame retardancy, especially to seats for vehicles, etc.
摘要:
The object of the present invention is to provide a method of producing low valence titanium oxides in a steady supply manner acceptable in industrial production. The low valence titanium oxides are produced by electrical discharge between two electrodes in an aqueous medium, wherein at least one of the electrodes is a titanium-containing electrode.
摘要:
A wafer-level optical deflector assembly is formed on a front surface side of a wafer. Then, the front surface side of the wafer is etched by using elements of the wafer-level optical deflector assembly, to form a front-side dicing street. Then, a transparent substrate with an inside cavity is adhered to the front surface side of the wafer. Then, a second etching mask is formed on a back surface side of the wafer. Then, the back surface side of the wafer is etched to create a back-side dicing street. Then, an adhesive sheet with a ring-shaped rim is adhered to the back surface side of the wafer. Then, the transparent substrate is removed. Finally, the ring-shaped rim is expanded to widen the front-side dicing street and the back-side dicing street to pick up optical deflectors one by one from the wafer.
摘要:
A driver for driving an optical deflector includes a mirror, a movable frame for supporting the mirror, a support body surrounding the movable frame, and a first group of piezoelectric actuators and a second group of piezoelectric actuators alternating with the first group of piezoelectric actuators. A first drive voltage for the first group of piezoelectric actuators has first repeated waves each with a first rising period. A second drive voltage for the second group of piezoelectric actuators has second repeated waves each with a second falling period corresponding to the first rising period of the first drive voltage and a second rising period corresponding to the first falling period of the first drive voltage. Frequencies of the first and second repeated waves exclude natural frequencies of a mechanically-vibrating system of the mirror with respect to the axis thereof depending upon the piezoelectric actuators.