摘要:
A viewing apparatus with a photographing function, includes a viewing optical system by which an image of an object, formed by a positive objective optical system, is viewed though a positive eyepiece optical system, and a photographing optical system which is provided independently from the viewing optical system. The photographing optical system covers substantially the same field of view as that of the viewing optical system. The viewing apparatus satisfies the following condition: 0.1
摘要:
A power output unit of the present invention sufficiently ensures the performance of a vehicle by sufficiently developing the performance of an engine without enlarging a motor. In a hybrid vehicle, a power requirement for the engine is set based on a vehicle speed and an accelerator opening degree. Usually, while giving priority to efficiency, an operation state of the engine is set based on a power requirement. Once the operation state of the engine is set, operation states of first and second motors are set based on a vehicle speed and a drive force. If the thus-set operation state of the first or second motor exceeds a threshold value, the operation state of the first or second motor is set so as not to exceed the threshold value. Based on the setting result and the power requirement, an operation state of the engine is set.
摘要:
A view finder device has a Poro prism and a first optical system facing an emergent plane of the Poro prism. The first optical system is positioned beside the Poro prism and opposite to a recording medium passage through which an electro-developing recording medium is moved. A relay optical system is provided behind the recording medium passage, so that the eye point of the view finder is separated from the first optical system. A second optical system is provided behind the relay optical system, so that the image formed by the relay optical system is observed. Since the electro-developing recording medium can be moved between the first optical system and the relay optical system, the finder optical system can be disposed at a lower position.
摘要:
In the process of starting an engine 150, the structure of the present invention lags an open and close timing of an intake valve 152 of the engine 150, thereby enabling a first motor MG1 mechanically linked with a crankshaft 156 via a damper 157 to motor the engine 150. When the revolving speed of the engine 150 exceeds a specific range that causes a resonance, the open and close timing of the intake valve 152 is returned to an ordinary level, so as to start controls of a fuel supply to the engine 150 and ignition. The lagged open and close timing of the intake valve 152 decreases the effective compression ratio of the engine 150, thus enabling smooth rotations of the engine 150 and reducing the amplitude of the torsional vibrations of the crankshaft 156. This structure enables the revolving speed of the engine 150 to swiftly pass through the specific range that causes a resonance.
摘要:
A dustproof view finder in which an image formed by an objective optical system is made erect by an image erecting optical system and is observed through an ocular optical system as an erect image, the optical system including a pair of front and rear optical elements spaced from one another at a predetermined distance to define an aerial space therebetween, and a seal member which encloses the aerial space.
摘要:
A fast aspherical zoom lens system includes a positive first lens group, a negative second lens group, a negative third lens group, and a positive fourth lens group, arranged in this order from the object side. The lens system includes at least one aspherical surface. When the zooming operation is carried out, the second and third lens groups are moved. The aspherical surface is located at a position in which the following condition is satisfied: H.sub.ASP /H.sub.MAX
摘要:
A strobe apparatus includes a light emitter which emits strobe light toward an object to be photographed, and a color temperature detector which detects a color temperature of ambient light reflected by the object. A controller varies a color temperature of the strobe light in accordance with the color temperature of the reflected ambient light. Thus, the color temperature of the object is made substantially identical to a predetermined value corresponding to a specific spectral sensitivity of an image pickup device.
摘要:
First, second, third, and fourth lens groups, from an object side, have positive, negative, negative, and positive power, respectively. Movable second and third lens groups vary magnification and perform focus compensating. The fixed fourth lens group has an image forming function, and includes, from the object side, positive first and second lens sub-groups. The zoom lens satisfies the following relationships: 5.5
摘要:
Binoculars having two telescopic optical systems for forming a stereoscopic image of an object. Each telescopic optical system has an image sensor, a first optical system, a second optical system and a display. The first optical system forms an image of the object on the image sensor, with the image sensor outputting an electrical signal that represents the image. The second optical system is used for viewing another image of the object. The display reproduces the electrical signal output by the image sensor. The binocular further includes a switch that switches between a first mode where the image is viewed using the second optical system, and a second mode where the image is reproduced using the display.
摘要:
A real image type viewfinder is provided with, in the following order from the object side: an objective lens group, a condenser lens group which transmits the image of the object formed by the objective lens group towards an eyepiece lens group, an image erecting optical system that erects an inverted image, and, the eyepiece lens group. The eyepiece lens group consists of a negative lens and a positive double-convex lens, in this order from the eye side, and satisfies the following three relationships:-0.5