摘要:
A lens barrel has a manual focusing ring which is rotatable about the optical axis so as to attain a manual focusing operation, a focusing rotary cylinder which defines the position, in the optical axis direction, of a focusing optical system, and is rotatable about the optical axis, an auto-focusing power transmission member for directly transmitting the moving force from an auto-focusing power source to the focusing rotary cylinder, a free rotation cylinder which is arranged on the focusing rotary cylinder, and is rotatable about the optical axis, a manual focusing power transmission member for transmitting the moving force from the manual focusing ring, a power relaying member which constitutes a differential mechanism together with the manual focusing power transmission member and the free rotation cylinder, and applies the rotation driving force to the focusing rotary cylinder by receiving the moving force transmitted from the manual focusing power transmission member, and a locking member for locking the free rotation cylinder in the manual focusing operation.
摘要:
The present invention relates to a hydrazine derivative represented by the formula (I): ##STR1## (wherein each of Ar.sup.1 and Ar.sup.2 is a substituted or unsubstituted phenyl group, a substituted or unsubstituted heteroaryl group, or the like, R.sup.1 is an alkyl group or the like, and A is a divalent radical having --C.dbd.N--N-- or --CH--NH--N-- as a fundamental skeleton), which is a useful compound as an agricultural and horticultural insecticide.
摘要:
A lens barrel which can be easily switched between a manual focusing mode and an auto-focusing mode employs a motor as a drive power source for driving a switching apparatus for switching between an auto-focusing apparatus and a manual focusing apparatus. When a photographer supplies an external electrical signal, a switching operation from the auto-focusing apparatus to the manual focusing apparatus and vice versa can be performed in accordance with the forward/reverse rotational direction of the motor.
摘要:
Compound of the general formula (I), which is useful as an agricultural and horticultural fungicide, an agricultural and horticultural fungicidal composition containing said compound, use of said composition for controlling plant disease, and process for the production of said compound: ##STR1## wherein ##STR2## shows a case in which R.sup.3 and R.sup.4 together form a cyclic substituent, and R.sup.1 and R.sup.4 are substituents disclosed in the specification.
摘要:
A zoom lens assembly comprises a photo-taking optical system having a focusing portion, a zooming portion, and an optic axis, a manual operator movable in the direction of the optic axis for zooming and rotatable about the optic axis for focusing, an electrically rotated drive shaft, a member for moving the zooming portion of the photo-taking optical system for zooming in response to the movement of the manual operator in the direction of the optic axis, an intermediate member rotatable in response to the rotation of the manual operator to move the focusing portion of the photo-taking optical system for focusing, and movable in the direction of the optic axis with the manual operator, a transmission system for coupling the intermediate member to the drive member for movement in the direction of the optic axis to thereby transmit the rotation of the drive member to the intermediate member irrespective of the movement of the intermediate member in the direction of the optic axis, and a change-over device operable to connect and disconnect the rotation of the manual operator and the intermediate member.
摘要:
A printing apparatus includes a control unit configured to perform control so as to apply a first driving voltage to a heat generation element to discharge ink from an orifice and then apply a second driving voltage to the heat generation element so as not to cause bubbling or discharging of ink. In this case, the control unit performs control to apply the second driving voltage before detection of a feature point on the waveform of a signal representing temperatures in a temperature drop process detected by the temperature detection element after application of the first driving voltage and along with the application of the first driving voltage based on a temperature detected by a temperature detection element.
摘要:
The substituted pyrazolecarboxanilide derivatives represented by of the formula (I) wherein R1 is H, alkyl, alkylcarbonyl, alkenylcarbonyl, cycloalkyl, phenylalkyl, phenylcarbonyl and the like; R2 is H, halogen, alkyl, CN, OH, alkoxy, phenoxy, phenylthio, phenylsulfonyl and the like; G is alkyl, alkenyl, alkynyl, cycloalkyl, C3-C10 cycloalkenyl and the like; Z is O or S; X is H, halogen, CN, NO2, alkyl and the like; Y1 is H, alkyl, alkenyl, phenyl, alkoxyalkyl and the like; Y2 is H, halogen, CN, NO2, OH, mercapto, amino, carboxyl, C1-C6 alkyl, phenyl, phenoxy, heterocycle and the like, m is 1 or 2; and n is 1-3, and salts thereof exhibit a superior effect as agrohorticultural insecticides or acaricides.
摘要:
The present invention provides a heat retaining device for solving problematic adhesion of a container to the heat retaining device. The heat retaining device includes a supporting rod, a top plate, a bottom plate, a heat retaining body, and a supporting spring. A pressing force applied to the container contained in the hole of the heat retaining body compresses the supporting spring to move the heat retaining body downward along the supporting rod. Release of the pressing force moves the heat retaining body upward by an elastic force of the supporting spring until the heat retaining body comes into contact with the top plate.
摘要:
A recording head in which a plurality of recording elements is arranged in an order is provided. The recording head includes a plurality of driving circuits that generate signals for driving transistors, each of the plurality of driving circuits being provided for a corresponding one of the plurality of recording elements. The recording head further includes a plurality of temperature acquisition circuits that acquire temperatures of the recording elements and a signal generation circuit that generates signals for sequentially driving the recording elements. The temperature acquisition circuit corresponding to the first recording element performs acquisition of a temperature based on a signal that is generated by the driving circuit corresponding to the second recording element and a signal that is generated by the driving circuit corresponding to the third recording element.
摘要:
An inkjet recording head includes a passage communicating with a discharge port for discharging ink, a discharging heater provided in the passage for generating energy to discharge ink from the discharge port, and a detecting unit provided in the passage for detecting a temperature of ink that changes in accordance with heat energy generated by the detecting unit and a flow of ink in the passage.