摘要:
A ceramic dielectric compositon is provided which consists essentially of a sintered metal oxide mixture expressed by the formula:[(Ba.sub.1.sub.-u Me.sub.u)O].sub.x.[(Ta.sub.1.sub.-v Nb.sub.v).sub.2 O.sub.5 ].sub.y.[Bi.sub.2 O.sub.3 ].sub.zwhere Me is at least one divalent metal selected from lead and strontium, and x, y, z, u and v are numbers falling within the following ranges0.05 .ltoreq. x .ltoreq. 0.80,0.05 .ltoreq. y .ltoreq. 0.30,0.10 .ltoreq. z .ltoreq. 0.80,0 .ltoreq. u .ltoreq. 1.00,0 .ltoreq. v .ltoreq. 1.00 andx + y + z = 1.0.This composition may contain specified metal oxide additives. The ceramic dielectric composition is sintered at a relatively low temperature and exhibits a dielectric constant varying linearly depending upon temperature variations over a wide use range, a reduced dielectric loss, enhanced resistivity and breakdown voltage, and therefore, is particularly suitable for "temperature-compensating" capacitors of a compact type with large capacity.
摘要:
A ceramic dielectric composition is provided which consists essentially of bismuth titanate with substituents, expressed by the formula:Bi.sub.4-x Me.sub.x Ti.sub.3-y R.sub.y O.sub.12where R is at least one divalent metal selected from strontium, barium and lead, Me is at least one pentavalent metal selected from tantalum, niobium and antimony, and both x and y are numbers falling within the range of 0.4 to 2.0 and the ratio of x/y is within the range of 0.9 to 1.1. This composition may contain specified metal oxide additives. The ceremic dielectric composition is sintered at a relatively low temperature, and exhibits a dielectric constant having a reduced dependence upon temperature variations over a wide use range, a reduced dielectric loss, enhanced resistivity and breakdown voltage.
摘要:
A piezoelectric ceramic composition which comprises the combination of a pyrochlore composite oxide and a base ceramic mixture of PbTiO.sub.3 and PbZrO.sub.3.
摘要:
A piezoelectric ceramic composition which comprises the combination of a pyrochlore composite oxide Ba.sub.2 Sb.sub.2 O.sub.7, and a base ceramic mixture of PbTiO.sub.3 and PbZrO.sub.3.
摘要翻译:一种压电陶瓷组合物,其包含烧绿石复合氧化物Ba 2 Sb 2 O 7和PbTiO 3和PbZrO 3的基础陶瓷混合物的组合。
摘要:
A piezoelectric ceramic composition which comprises the combination of a pyrochlore composite oxide and a base ceramic mixture of PbTiO.sub.3 and PbZrO.sub.3 is prepared by individually forming pyrochlore composite oxide, PbTiO.sub.3 and PbZrO.sub.3 components; and sintering a mixture of the formed components at a temperature greater than 1,000.degree. C.
摘要:
A light projection apparatus that can produce an elongate light projection pattern is provided. The light projection apparatus includes a fluorescent member which is excited with exciting light and a light projecting member which reflects or transmits the light emanating from the fluorescent member to project it outside. The fluorescent member includes an irradiated region which is irradiated with the exciting light, and the length of the irradiated region in a first direction is greater than its length in a second direction.
摘要:
A light-projecting device according to the present invention includes a plurality of light source units including (i) a light emitting section that emits light upon receiving a laser beam and (ii) a reflector. Each of the light source units project light to a corresponding one of light-projected spots which is a region to which light is projected in an illuminated region in a partitioning manner, and the illuminated region is formed by combining a plurality of the light-projected spot.
摘要:
Provided is a drive assist display apparatus which displays a main view 20 showing an image of a wide backward area of the vehicle, and a sub view 21-3 showing a view point conversion image of a vicinity of the vehicle 1 as if looked down from a virtual viewpoint, the sub view 21-3 having a down side region where a thickness of the view point conversion image of the bumper 13 from the taken image is moderately represented and left and right side regions except the region of the bumper 13 where a taken image of an area around the vehicle is substantially shown, the sub view 21-3 formed as provided with a cutout section having a width corresponding to a width of the vehicle in accordance with a reduction scale of the view point conversion image, and the cutout section having sides rounded in form.
摘要:
A vehicle front structure includes: a bumper face disposed at a vehicle front end; and a lower grill disposed at a bumper opening section of the bumper face. The bumper face includes: a hook cover (20), after formed integrally with the bumper face within the bumper opening section, separated from the bumper face; and a hook cover holding mechanism (26) formed within the bumper opening section integrally with the bumper face to detachably fix the hook cover (20). The hook cover (20) includes: a cover body section (40) for closing a hook cover attachment portion in the bumper face; and a cover snap-fit claw (32) for snap-fitting onto a bumper engaging portion in the hook cover attachment portion. The hook cover holding mechanism (26) includes a hold latch nail (34) for engaging with the cover snap-fit claw (32) by resilient deformation of the hook cover (20).
摘要:
A light projection unit is provided that can reduce the production of a portion where the light density is excessively increased on a fluorescent member. This light projection unit includes: a light collection member that includes a light entrance surface and a light emission surface which has an area smaller than that of the light entrance surface; a fluorescent member that includes an application surface to which the laser light emitted from the light collection member is applied and that mainly emits fluorescent light from the application surface; and a light projection member that projects the fluorescent light. The light emission surface of the light collection member is arranged a predetermined distance from the application surface of the fluorescent member.