A solid-state imaging device having weighted sensitivity distribution includes a pixel having a main area and at least one sub-area positioned adjacent the main area. Each of the main and sub-areas produces an output signal. A processing circuit is provided for receiving the output signals from the main and sub-areas, suppressing an intensity of the sub-area output signal, inverting a polarity of the sub-area output signal, and combining the suppressed and inverted sub-area output signal with th…

A rotary head type reproducing apparatus having a reproducing rotary head for reproducing signals recorded on a recording medium and a rotary erasing head for erasing signals recorded on the recording medium, both heads being mounted on a rotary member, wherein a reproduction amplifier for amplifying a reproduced signal reproduced by the rotary reproducing head is put on the rotary member and supply of electrical power to the reproduction amplifier is made through a rotary transmitter which, whe…

A copying apparatus having a stationary or movable original to be copied, a lens movable parallel to the original and perpendicular to its optical axis, a photosensitive medium movable parallel to the lens and a flash lamp device for illuminating the entire surface of the original wherein movement of the elements satisfies the condition ##EQU1## where V.sub.1 is the velocity of movement of the photosensitive medium and V.sub.1 ‘ the velocity of movement of the light image at the surface of the m…

A light meter arrangement for a camera having a zoom objective and a view finder. A beam splitter is arranged between the zoom control lens assembly and the relay lens to split off a fraction of the beam of light coming from the assembly and to direct the fraction of afocal form to the view finder. In order to deflect an integral marginal portion of the view finder light beam to a light-sensitive element, there is provided a single prismatic entity having an entrance face positioned adjacent the…

A wide angle objective lens with an angular field coverage of 76.degree. and a relative aperture of 1:2.8, comprising seven members of which the first and second (counting from the front) are negative meniscuses of forward convexity, the third is positive with the front surface more strongly curved than the rear one and convex toward the front, the fourth is bi-convex, the fifth is bi-concave, and the sixth and seventh are positive meniscuses of rearward convexity. This lens is shortened in the …

A liquid crystal display device of a type, wherein a pair of flexible, transparent plates, each having on one surface thereof a transparent electrode to form thereon desired characters, patterns, and so forth, are arranged with the transparent electrodes opposed to each other, a spacer to maintain a constant space gap between the opposed transparent electrodes is provided between the pair of flexible, transparent plates uniformly over the entire surface thereof, and liquid crystal is sealed in a…

A TV camera which can detect any object distance. The image pick-up surface of the TV camera is divided into an object image forming surface and a range finding image forming surface. The object distance can be detected by reading the range finding image.

A numerical display system for use in a small calculator has a multi-digit numerical display device for selectively energizing a plurality of segments to display alphanumeric characters, first drive circuit for causing the numerical display device to display a denominator and a numerator at a time, and second drive circuit for causing a denominator-numerator distinction symbol to be displayed between the denominator and the numerator by the selective energization of the plurality of segments.

An electronic scheduler includes a comparator for comparing schedule information to be newly stored with schedule information already stored in the memory. Circuitry is provided for determining whether the output of comparison from the comparator falls within a predetermined range, and an alarming circuit for giving an alarm in response to the output present within said range.

A printing apparatus for use in the manufacture of semiconductor circuit elements, comprising a fixed mirror imaging system. A mask holder and wafer holder are respectively provided in an upper horizontal plane and a lower horizontal plane on the optical axis above and below said mirror imaging system, the light emerging from the mask being introduced into said system by a mirror inclined at 45.degree. to the optical axis while the light emerging from said system is directed to the wafer by an a…