摘要:
The p-terphenyl derivatives of the formula shown below are useful in preparing practical ferroelectric liquid crystalline compositions. The derivatives exhibit excellent chemical stability and display the chiral smectic C or smectic C phase over a wide temperature range. ##STR1## wherein each of R.sub.1 and R.sub.2 is a straight or branched chain alkyl group having 1-18 carbon atoms; each of Y and Z is a single bond, O, COO or OCO; and any two of X.sub.1, X.sub.2, and X.sub.3 are fluorine atoms and the remainder is a hydrogen atom.
摘要翻译:下面所示公式的对三联苯衍生物可用于制备实际的铁电液晶组合物。 该衍生物表现出优异的化学稳定性,并在宽温度范围内显示手性近晶C或近晶C相。 (1)其中R1和R2各自为具有1-18个碳原子的直链或支链烷基; Y和Z各自为单键,O,COO或OCO; X 1,X 2和X 3中的任意两个为氟原子,其余为氢原子。
摘要:
A lighting apparatus for a discharge lamp (15) has a power adjustment unit (11,13) for adjusting electrical power to be supplied to the discharge lamp, an ignition pulse circuit (17) for producing at least one ignition pulse to be applied to the discharge lamp, and a computer control circuit (19) electrically connected with the power adjustment unit and the ignition pulse circuit. The computer control circuit (19) controls the power adjustment unit and the ignition pulse circuit so that at first the power adjustment unit (11,13) supplies an idling voltage to the discharge lamp, then the ignition pulse circuit (17) lights up the discharge lamp by applying at least one ignition pulse to the discharge lamp, and thereafter the power adjustment unit (11,13) controls lamp power of the discharge lamp to a target lamp power.
摘要:
An adhesive composition for being applied to at least one of thread contact faces of screw members so as to stick said thread contact faces to each other in engaging the screw members with each other for the purpose of locking and sealing the engaged screw members, in which micro-capsules enclosing at least a reactive monomer of a reactive adhesive composition comprising said monomer, a polymerization initiator of the aforesaid monomer and/or an activator of the aforesaid polymerization initiator is dispersed in a binder comprising a photo-hardening resin composition.
摘要:
New p-terphenyl derivatives useful as components for preparing practical ferroelectric liquid crystalline compositions and excellent in chemical stability, as well as liquid crystalline compositions containing at least one of the p-terphenyl derivatives.
摘要:
Body air outlets of an air-conditioning-apparatus indoor unit each has a substantially trapezoidal shape in plan view and are each defined by a body-air-outlet outer side wall, a body-air-outlet inner side wall, and a pair of body-air-outlet end walls. The body-air-outlet outer side wall is provided with a deflection guide at each of long-side ends thereof. The body-air-outlet end walls are each provided with a sloping guide. The deflection guide has a deflection-guide upper surface that gradually projects toward the body-air-outlet inner side wall in a direction toward a body open face (toward a downstream side) and in a direction toward the central part of the body air outlet. The sloping guide has a sloping-guide upper surface that gradually projects toward the central part of the body air outlet as the sloping guide extends closer to the body open face (toward the downstream side).
摘要:
A light modulator element includes a liquid crystal element which has a liquid crystal layer containing liquid crystal molecules aligned along a first direction, and two transparent electrodes disposed in opposition to each other with the liquid crystal layer sandwiched therebetween, and which controls the phase of linear polarization light and passing through said liquid crystal layer by applying an electric voltage between said two transparent electrodes; a polarizer plate which is disposed between a light source and said liquid crystal element and which has the transmission axis along the first direction or along a direction orthogonal to said first direction; and a rotation mechanism which supports the liquid crystal element and the polarizer plate and which rotates the liquid crystal element and the polarizer plate integrally in one unit with the optical axis of the liquid crystal element as the rotation axis.
摘要:
Body air outlets of an air-conditioning-apparatus indoor unit each has a substantially trapezoidal shape in plan view and are each defined by a body-air-outlet outer side wall, a body-air-outlet inner side wall, and a pair of body-air-outlet end walls. The body-air-outlet outer side wall is provided with a deflection guide at each of long-side ends thereof. The body-air-outlet end walls are each provided with a sloping guide. The deflection guide has a deflection-guide upper surface that gradually projects toward the body-air-outlet inner side wall in a direction toward a body open face (toward a downstream side) and in a direction toward the central part of the body air outlet. The sloping guide has a sloping-guide upper surface that gradually projects toward the central part of the body air outlet as the sloping guide extends closer to the body open face (toward the downstream side).
摘要:
A turbofan and air-conditioning apparatus that can suppress the separation of an airflow from the surface of each blade, and can reduce noise due to turbulence is obtained.At least one of a blade pressure surface of the blade that is the front surface in the rotation direction, and a blade suction surface of the blade that is the rear surface in the rotation direction has a blade leading edge side jagged portion formed near the blade leading edge portion, the blade leading edge side jagged portion including a recessed portion a extending substantially along the blade inner peripheral side leading edge portion and the blade shroud side leading edge portion and recessed in the thickness direction of the blade, and an inclined portion in which the thickness of the blade gradually increases toward the blade trailing edge portion from the recessed portion.
摘要:
An object is to readily visualize a propagation state of sound emitted within a sound space. A sound to light converter includes: a microphone; a light emitting unit; and a light emission control unit that acquires an instantaneous value of an output signal from the microphone in synchronization with a strobe signal and that allows the light emitting unit to emit light with a luminance level corresponding to the acquired instantaneous value. The strobe signal is generated and output in a signal generator of the sound to light converter. Alternatively, the strobe signal is generated and output in a control device of a sound field visualizing system in synchronization with an emission of sound to be visualized by the sound to light converter.