摘要:
An exchangeable lens includes a lens system which forms an image of a target object on which the lens system is focused, a focus adjusting means manually operable for adjusting the focus of the lens system, a direction signal generating means which generates a direction signal representing the relationship between the operational direction of the focus adjusting means of the lens and change of the camera-to-object distance to be focused on by the lens system and a transmitting means which transmits the signal to a camera on which the exchangeable lens is detachably mounted. The camera includes a focus detecting means which receives a light coming from an object and passing through the lens system, a focus condition determining means which is responsive to the output of the focus detecting means to determine the focus condition and the direction of operation of the focus adjusting means to attain an in-focus condition for the focus adjustment and a display means which indicates the focus condition and the direction of focus adjustment. The display means indicates a proper direction of operation of the focus adjusting means towards an in-focus condition, even if the relationship between the operational direction and change of focus differs with the exchangeable lenses.
摘要:
An exchangeable lens assembly detachably mountable on a camera body having an automatic focusing device is selectively capable of either automatic focus adjustment by the operation of the automatic focusing device or manual focus adjustment by a manual operation. In two of the embodiments, the change-over between the automatic focus adjustment and the manual focus adjustment is made by operation of a change-over member provided on a stationary barrel separately from a manual focusing ring. A driven shaft coupled with a focus adjusting mechanism is disengaged from a driving shaft of the automatic focusing device in the case of the manual focus adjustment. In the remaining embodiments, a manual focusing ring rotatable and axially shiftable relative to a stationary barrel is axially shifted between an automatic focusing position and a manual focusing position for the change-over. When the ring is shifted to the automatic focusing position, a driven shaft coupled with a focus adjusting mechanism is engaged with a driving shaft of the automatic focusing device and the ring is un-coupled from the focus adjusting mechanism. When the ring is shifted to the manual focusing position, the engagement between the driven and driving shafts is interrupted and the ring is coupled with the focus adjusting mechanism by frictional engagement due to elastic deformation of a resilient member.
摘要:
A camera body and an interchangeable lens removably mounted thereon are equipped with an automatic focusing arrangement. The interchangeable lens includes a signal means for generating a relation signal representing the relationship between the driving directions of a driven section and a focus adjusting section. The camera body includes a focus condition detecting circuit for generating a focusing signal indicating the direction for focusing, a driving section for driving the driven section and change-over means for reversing the relationship, between a direction indicated by the focusing signal and a driving direction of the driving section in response to the relation signal from the signal means.
摘要:
ProblemTo provide an aluminum alloy brazing sheet, featuring a good brazing property that prevents diffusion of molten filler material in a core material of the aluminum alloy brazing sheet during a brazing process and exhibiting a superior corrosion resistance to an exhaust gas condensate water after the brazing process, a method of manufacturing the aluminum alloy brazing sheet, and a high corrosion-resistant heat exchanger using the aluminum alloy brazing sheet.Resolving MeansA high corrosion-resistant aluminum alloy brazing sheet comprises a core material composed of an aluminum alloy, a sacrificial anode material cladded on one surface of the core material, and a filler material composed of an Al/Si-based alloy and cladded on another surface of said core material, and is characterized in that the sacrificial anode material is composed of an aluminum alloy which contains Si falling within a range of 2.5-7.0 mass %, Zn falling a range of 1.0-5.5 mass %, Fe falling within a range of 0.05-1.0 mass %, and which is composed of the balance Al and the inevitable impurities, and that a clad thickness of the sacrificial anode material falling within a range of 25-80 μm. Also, there is provided a method of manufacturing the aluminum alloy brazing sheet, and a high corrosion-resistant heat exchanger using the aluminum alloy brazing sheet.
摘要:
A sintered body which includes at least indium oxide and gallium oxide and comprises voids each having a volume of 14000 μm3 or more in an amount of 0.03 vol % or less.
摘要:
A radial line slot array antenna has a slotted conductor plate in which a plurality of slots are formed and arranged in a spiral. The plurality of slots are arranged in the slotted conductor plate such that the arrangement distance in a radial direction between the slots varies gradually between a first portion determined based on a first frequency and a second portion determined based on a second frequency that is different from the first frequency.
摘要:
It is possible to obtain a wide-band feeder circuit a lower conductive plate provided substantially in parallel to an upper conductive plate, a short-circuit portion provided in a concave manner at a central portion of the lower conductive plate, and a countersunk portion provided in a convex manner at a central portion of a short-circuit plate forming a bottom of the short-circuit portion. It is also possible to obtain an antenna including such a wide-band feeder circuit.
摘要:
An aluminum alloy brazing sheet having a core material of an aluminum alloy, and a filler material cladded on the core is disclosed. The core material is an aluminum alloy having about 0.05 to about 1.2 mass Si, about 0.05-about 1.0 mass % Fe, about 0.05-about 1.2 mass % Cu, and about 0.6-about 1.8 mass % Mn, balance Al and the inevitable impurities. The, filler material includes an aluminum alloy having about 2.5-about 13.0 mass % Si. Also, there is provided a method of manufacturing such an aluminum alloy brazing sheet.
摘要:
Disclosed herein is an organic EL display device including, on a substrate: lower electrodes; first hole injection/transport layers; second organic light-emitting layers of colors other than blue; a blue first organic light-emitting layer; electron injection/transport layers; and an upper electrode.
摘要:
Disclosed herein is an organic EL display device including, on a substrate: lower electrodes; first hole injection/transport layers; second organic light-emitting layers of colors other than blue; a blue first organic light-emitting layer; electron injection/transport layers; and an upper electrode.