Abstract:
A power supply boost control device and a fault location identification and judgment method for the power supply boost control device of this invention comprise a step of judging whether a power supply relay has a turn-on fault, a precharge circuit has a turn-on fault, or the power supply relay has a turn-on fault; second judgment unit is comprised for judging whether a boosting prohibit function is faulty, or the precharge circuit has a turn-off fault, or the precharge circuit has a turn-off fault; and third judgment unit is comprised for judging, based on the judgment result of the first voltage judgment unit, whether or not the power supply relay has a turn-off fault.
Abstract:
A piezoelectric ceramic composition comprising a perovskite compound which contains, as metal components, Pb, Sr, Zr, Ti, Nb, Cr, Y, Co and at least one element selected from La, Gd, Nd, Sm and Pr, and may further contain Sb or Na, wherein when the composition formula is expressed as,(Pb.sub.1-x-.alpha.-y Sr.sub.x Na.sub..alpha. M.sub.y).sub.a [(Nb.sub.b Y.sub.c Cr.sub.d Co.sub.e Sb.sub..beta.).sub.f Ti.sub.g Zr.sub.1-f-g ]O.sub.3,wherein M is at least one element selected from La, Gd, Nd, Sm and Pr, then, x, y, a, b, c, d, e, f, g, .alpha. and .beta. satisfy the following relationships, 0.005.ltoreq.x.ltoreq.0.08, 0.002.ltoreq.y.ltoreq.0.05, 0.95.ltoreq.a.ltoreq.1.05, 0.47.ltoreq.b.ltoreq.0.70, 0.02.ltoreq.c.ltoreq.0.31, 0.11.ltoreq.d.ltoreq.0.42, 0.01.ltoreq.e.ltoreq.0.12, 0.02.ltoreq.f.ltoreq.0.15, 0.46.ltoreq.g.ltoreq.0.52, 0.ltoreq..alpha..ltoreq.0.005, 0.ltoreq..beta..ltoreq.0.13, and b+c+d+e+.beta.=1.00. The piezoelectric ceramic composition of the present invention exhibits a high electromechanical coupling coefficient Kp, a low mechanical quality factor Qm, a low dielectric constant .epsilon.r, excellent heat resistance, and can be preferably used as a piezoelectric part for being mounted on the surface and, particularly, as a digital piezoelectric.
Abstract translation:一种包含钙钛矿化合物的压电陶瓷组合物,其包含Pb,Sr,Zr,Ti,Nb,Cr,Y,Co和选自La,Gd,Nd,Sm和Pr中的至少一种元素作为金属成分,并且还可以进一步 含有Sb或Na,其中当组成式表示为(Pb1-x-α-ySrxNaαMy)a [(NbbYcCrdCoeBb)fTigZr1-fg] O3时,其中M为选自La,Gd, Nd,Sm和Pr,则x,y,a,b,c,d,e,f,g,α和β满足以下关系:0.005≤x≤0.08,0.002< /=0.05,0.95 = a = 1.05,0.47 = b = 0.70,0.02 = 0.31,0.11 = d <= 0.42,0.01 < /=0.12,0.02 = f = 0.15,0.46 = g = 0.52,0 <α= 0.005,0%β= 0.13,b + c + d + e + beta = 1.00。 本发明的压电陶瓷组合物表现出高机电耦合系数Kp,低机械品质因数Qm,低介电常数εr,耐热性优异,并且可优选用作安装在表面上的压电部件, ,特别是数字压电。
Abstract:
A light guide member for an object detection apparatus for detecting an object adhered on a light translucent member based on change of quantity of reflection light received from the light translucent member includes a detection face where light exits to the light translucent member and reflection light reflected from the light translucent member enters, the detection face including a detection area where a part of the reflection light to enter the detection unit passes through, and a non-detection area where remaining part of the reflection light not to enter the detection unit passes through; a first intervening member disposed on the detection face attachable to the light translucent member via the first intervening member; and a second intervening member disposed on the detection face attachable to the light translucent member via the second intervening member. The first intervening member has flexibility greater than flexibility of the second intervening member.
Abstract:
A light guide member for an object detection apparatus is devised. The object detection apparatus includes a light source unit, and a detection unit for detecting an object adhered on a surface of a light translucent member based on change of light quantity of reflection light received from the light translucent member. The light guide member includes an incident face where the light exiting from the light source unit enters; a detection face where the exiting light exits to a rear face of the light translucent member and the reflection light reflected from the light translucent member enters; an exiting face where the reflection light exits to the detection unit; and a light guiding portion through which the exiting light and the reflection light proceed. The detection face has curvature corresponding to curvature of the light translucent member.
Abstract:
Disclosed is a laser radar device including a modulated light beam generator that emits light beams to a target, a photodetector that receives reflected light; a reflected light condenser that condenses the reflected light; a rotator that rotates around a rotation axis; and mirrors included in the rotator that scan the light beams, and guide the reflected light to the reflected light condenser, wherein an angular detection range in a vertical direction is divided into a plurality of layers, wherein mirror surfaces of the mirrors are tilted by corresponding tilt angles relative to the rotation axis, the tilt angles being different from each other, wherein the modulated light beam generator emits the light beams in the vertical direction, the light beams having different emission angles, and wherein a difference between the emission angles corresponds to the angular detection range of one layer in the vertical direction.
Abstract:
A laser scanner includes an optical source emitting a laser beam; and an optical deflector deflecting the laser beam emitted from the optical source to scan an object with the laser beam deflected thereby, wherein the optical deflector includes a reflecting mirror; a motor rotating the reflecting mirror around an axis of the mirror: a first member fixed on a shaft of the motor, rotating with the shaft and a second member fixed on the axis of the mirror, engaging with the first member when the shaft rotates to rotate with the axis of the mirror.
Abstract:
An imaging apparatus includes: a lens barrel which holds at least one optical element; an image sensor which converts an image of a photographic subject obtained by the optical element into an electrical signal; a circuit board on which the image sensor is mounted; and a fixing wall body which is a different body from the lens barrel, and where the lens barrel is mounted to an end part of the fixing wall body on a photographic subject side, and the circuit board is mounted to an end part of the fixing wall body on a side opposite to the photographic subject side by a bond structure by an adhesive agent.
Abstract:
Disclosed is a light-emitting device that exhibits good color rendering and highly efficiently emits white light in an incandescent bulb color range. The semiconductor light-emitting device (1) of the present invention includes: a semiconductor light-emitting element (2) that emits blue light; a green phosphor (14) that absorbs the blue light and emits green light; and an orange phosphor (13) that absorbs the blue light and emits orange light. The orange phosphor (13) produces an emission spectrum having a peak at a wavelength of equal to or greater than 590 nm but equal to or less than 630 nm and having a full width at half maximum of 130 nm or greater at the peak, the full width at half maximum of the emission spectrum of the orange phosphor (13) being broader than a full width at half maximum of an emission spectrum of the green phosphor (14). The orange phosphor (13) exhibits an absorptance having a peak wavelength of 420 nm or greater. ABS(530) and ABS(MAX) satisfy a relation, ABS(530)/ABS(MAX)
Abstract:
Provided is a light-emitting device that has a high emission efficiency, excellent stability and temperature properties, and that generates light having a high color rendering property sufficient for practical use. This semiconductor light-emitting device (1) comprises a semiconductor light-emitting element (2) that emits blue light, a green phosphor (14) that absorbs the blue light and emits green light, and an orange phosphor (13) that absorbs the blue light and emits orange light, and is characterized in that the orange phosphor is an Eu-activated α-SiAlON phosphor having an emission spectrum peak wavelength within a range of 595 to 620 nm.
Abstract:
A liquid-ejection head unit includes a head, an electric-circuit board, electronic components, and a storage tank. The head includes a frame member and ejects droplets of liquid. The electronic components are mounted on the electric-circuit board and connected to the head. The storage tank stores liquid supplied to the head. The electric-circuit board is disposed between the frame member of the head and the storage tank to form a single multi-layered structure. The electronic components of the electric-circuit board are accommodated in at least one of a first internal space defined by the frame member of the head and the electric-circuit board and a second internal space defined by the electric-circuit board and the storage tank.