Abstract: The invention concerns an image-capturing apparatus and an imager. The image-capturing apparatus includes the imager in which a plurality of circuit cells are two-dimensionally aligned, and an electronic charge, photo-electronically converted from a received light and stored in each circuit cell, can be discharged from an arbitral circuit cell. The imager includes first group circuit cells to generate electronic charges corresponding to the pixels of the image including a subject, and second group circuit cells to generate electronic charges corresponding to an amount of light coming from the subject, the electronic charges further being converted to a detected value. In the imager, at least one of two operations of halting a generating-action of the electronic charges in the first group circuit cells and discharging the electronic charges from the first group circuit cells is performed, when the detected value exceeds a threshold value.

Abstract: A camera with a built-in electronic flash device, includes: a photographing lens; an aperture stop; an electronic flash emitting portion; a light receiving element for receiving light reflected on a photographic object which has been emitted by the flash emitting portion; and an electronic flash circuit for making the flash emitting portion emit light, the flash circuit having an automatic emission control circuit which stops emission of the flash emitting portion when an amount of the reflected light received by the light receiving element reaches a specified value. With respect to the automatic emission control circuit, A min satisfies the following conditional expression, (A−1) EV≦A min≦(A+0.

Abstract: There is described a strobe device particularly suited for image capturing apparatus equipped with wide-angle lens. The strobe device includes a reflector to reflect a strobe light, a light-emitting tube to emit the strobe light and an optical panel to transmits the strobe light. In the strobe device embodied in the present invention, a maximum luminous intensity of the strobe light, illuminated by the strobe device, is arranged in a direction being different from a direction of a strobe light axis.

Abstract: There is described a strobe device to which another electronic circuit or electronic element is added, and a lens-fitted film unit and a camera, which incorporates the strobe device. The strobe device includes: a strobe light-emitting tube to emit a strobe light; a main-capacitor coupled in parallel to the strobe light-emitting tube, so as to supply a luminous energy to the strobe light-emitting tube; a trigger-transformer to apply a trigger-voltage to a trigger-electrode of the strobe light-emitting tube; a trigger-section to activate a light-emitting action of the strobe light-emitting tube; a trigger-capacitor, coupled to the main-capacitor with a resistor, to store an electronic charge, which is discharged to the trigger-transformer when the trigger-section turns ON; and a semiconductor element driven by a part of an electronic charge stored in the main-capacitor, when the trigger-section turns ON to activate the light-emitting action of the strobe light-emitting tube.

Abstract: The invention concerns an image-capturing apparatus and an imager. The image-capturing apparatus includes the imager in which a plurality of circuit cells are two-dimensionally aligned, and an electronic charge, photo-electronically converted from a received light and stored in each circuit cell, can be discharged from an arbitral circuit cell. The imager includes first group circuit cells to generate electronic charges corresponding to the pixels of the image including a subject, and second group circuit cells to generate electronic charges corresponding to an amount of light coming from the subject, the electronic charges further being converted to a detected value. In the imager, at least one of two operations of halting a generating-action of the electronic charges in the first group circuit cells and discharging the electronic charges from the first group circuit cells is performed, when the detected value exceeds a threshold value.

Abstract: A lens-fitted film unit incorporating a strobe device, comprises: a main body; a photographic film loaded in advance in said main body; a shutter; a photographic lens; and a strobe circuit included in said strobe device, said strobe circuit comprising, a boosting-up circuit including a DC power source, an oscillation transistor, an oscillation transformer having a primary winding and a secondary winding, and a rectifying element for rectifying an electronic current induced by said oscillation transformer, an oscillation controlling circuit for controlling a base potential of said oscillation transistor, and a strobe lighting circuit including a main-capacitor charged by said electronic current rectified by said rectifying element, and a strobe-lighting tube driven by an electronic charge charged in said main-capacitor, wherein a collector and an emitter of said oscillation transistor are serially coupled between said DC power source and said primary winding of said oscillation transformer, and a base of said

Abstract: A fixed focus camera equipped with a strobe, comprises a strobe circuit including a voltage raising circuit, a strobe light emitting circuit having a trigger circuit, a main capacitor, and a strobe light emitting tube, a light receiving element to receive light reflected from an object when the strobe light emitting tube emits light and to generate a light receiving signal, and a strobe light emission stopping circuit to stop light emission from the strobe light emitting tube on the basis of the light receiving signal generated by the light receiving element.

Abstract: A single use camera with a built-in electronic flash includes a main body; a photographic film loaded in the main body previously; an electronic flash unit having an electronic flash light emitting section and an electronic flash circuit; and a photographing unit having a photographic lens and a shutter, wherein the following condition is satisfied, 6≦A≦10 wherein A represents an exposure value, which is determined by an aperture value, a shutter speed and a sensitivity of a film loaded in the single use camera, when photographed in a condition in which the electronic flash unit is used.

Abstract: A camera with a built-in electronic flash device, includes: a photographing lens; an aperture stop; an electronic flash emitting portion; a light receiving element for receiving light reflected on a photographic object which has been emitted by the flash emitting portion; and an electronic flash circuit for making the flash emitting portion emit light, the flash circuit having an automatic emission control circuit which stops emission of the flash emitting portion when an amount of the reflected light received by the light receiving element reaches a specified value. With respect to the automatic emission control circuit, Amin satisfies the following conditional expression, (A−1) EV≦Amin≦(A+0.

Abstract: A lens-fitted film unit incorporating a strobe device, comprises: a main body; a photographic film loaded in advance in said main body; a shutter; a photographic lens; and a strobe circuit included in said strobe device, said strobe circuit comprising, a boosting-up circuit including a DC power source, an oscillation transistor, an oscillation transformer having a primary winding and a secondary winding, and a rectifying element for rectifying an electronic current induced by said oscillation transformer, an oscillation controlling circuit for controlling a base potential of said oscillation transistor, and a strobe lighting circuit including a main-capacitor charged by said electronic current rectified by said rectifying element, and a strobe-lighting tube driven by an electronic charge charged in said main-capacitor, wherein a collector and an emitter of said oscillation transistor are serially coupled between said DC power source and said primary winding of said oscillation transformer, and a base of said

Abstract: A lens-fitted film unit including a main body; a photographic film, pre-loaded in the main body; an electronic flash unit; a shutter unit; a camera lens; and a diaphragm. In the lens-fitted film unit, a guide number of the electronic flash unit, a T-number determined from the camera lens and the diaphragm and a shutter speed of the shutter unit are determined so that A is not more than 8.5 when A represents an EV value of a reference exposure amount of the lens-fitted film unit under a stroboscopic photographing state minus 1.5; and intensity of a latent image, formed on the photographic film under the condition that a reference reflection panel being placed at a predetermined distance between 2-3 m from the lens-fitted film unit is illuminated by the electronic flash unit without other lights in the stroboscopic photographing state, corresponds to intensity of a latent image obtained under a photographing condition of photographing luminance not more than A+5.0 in EV value.

Abstract: An image forming apparatus includes: a first reading device for reading an image recorded on a recording medium; a storing device for storing a signal of a reference image representing a reference to correct the image recorded on the recording medium; a second reading device for reading a chart image obtained by recording the reference image; a calculating device for calculating image correction data by comparing the signal of the reference image with a signal of the chart image; an image processing device for correcting the image signal read by the first reading device on the basis of the image correction data; and an outputting device for outputting an image on the basis of the image signal corrected by the image processing device.

Abstract: A lens-fitted film unit which includes a photographing film, pre-loaded in the lens-fitted film unit; a photographing lens; a shutter; an electronic flash emission portion; and an electronic flash circuit, connected with the electronic flash emission portion. That electronic flash emission portion further includes a capacitor for storing electric charges necessary for electronic flash emission; and a start-charge switch for causing the capacitor to start charging. The start-charge switch includes a touch sensor with which the start-charge switch is turned on when a photographer touches the touch sensor.

Abstract: The process gives highly pure cyclopentadiene and methylcyclopentadiene from a cracked gasoline fraction. The merit of the process is that cyclopentadiene and methylcyclopentadiene are recovered by adding a simple distillation system to a conventional cracked gasoline treating plant without altering the plant and operating conditions thereof. An internal reflux stream is withdrawn from the stripping section of a BTX column of a conventional cracked gasoline treating plant, and is sent to a depolymerization-distillation column operated at a bottom temperature of 160.degree.-230.degree. C. The overhead stream of the column is sent to a cyclopentadiene column operated at a bottom temperature of 160.degree.-230.degree. C. Cyclopentadiene is recovered from the overhead of the column, and the bottom stream is sent to methylcyclopentadiene column operated at a bottom temperature of 170.degree.-210.degree. C. Methylcyclopentadiene is recovered from the overhead of the column.