摘要:
An image taking apparatus comprising a frame, an image taking lens that includes at least one movable lens that can be moved in a direction of the optical axis of the image taking lens with respect to said frame, a lens frame that supports the movable lens, an actuator for moving the movable lens; and a movable frame that is coupled to a movable element of said actuator, wherein the lens frame and the movable frame are formed integrally.
摘要:
A lens-fitted film unit includes: a main body; a photographic lens provided in the main body, having an aperture value; an aperture provided in the main body; a shutter provided in the main body, having a shutter speed; a photographic film loaded in the main body, having image frames each including an unexposed portion and a pre-exposed portion on which a latent image has been formed; and a masking member for masking the pre-exposed portion of the photographic film when a photographing operation is conducted. The latent image has been formed on the photographic film with a same exposure amount as that obtained when an object to be photographed having a brightness of not less than 10 and not more than 12.5 in terms of light values in which a photographic film whose ISO sensitivity is 100, is exposed to light with an aperture value of the photographic lens set by the aperture and with the shutter speed of the shutter.
摘要:
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.
摘要:
A single-use camera which includes: a film winding knob, capable of rotating in the winding direction, for winding a film so as to feed the film frame by frame; a reversion-preventing member, having an engagement with the film winding knob, for preventing the film winding knob from rotating in the opposite direction to the winding direction; a releasing member for releasing the engagement of the reversion-preventing member with the film winding knob when the film is wound by the film winding knob so that the noise, generated from the reversion-preventing member, is prevented.
摘要:
An imaging optical system 100 has an imaging side prism 102 for bending incident light at about 90 degrees for reflection, and an image sensor 105 having a light receiving surface opposing to an exit surface 102b of the imaging side prism 102. At least one of an incident surface 101a of an incident side prism 101 and an incident surface 101a of the imaging side prism 102, or at least one of an exit surface 101b of the incident side prism 101 and the exit surface 102b of the imaging side prism 102 has an optical power. An arrangement relation between the exit surface 102b of the imaging side prism 102 and the image sensor 105 is established to satisfy the conditional formula (1): 0.0≦d/a
摘要:
In a lens device provided with a liquid optical element in which the conductive or polar first liquid and the second liquid which is not mixed with the first liquid each other, are sealed and housed in a container so that an interface has a predetermined shape, and when the voltage is impressed between the first liquid and an electrode provided on the container, a shape of the interface is changed and a refractive power is adjusted, because the present invention is characterized in that it has: a plastic lens whose optical characteristic is changed due to the temperature; a temperature detection means for detecting the temperature; and a control means for controlling the voltage to be impressed on the liquid optical element, corresponding the temperature detected by the temperature detection means, so that the influence due to the change of the optical characteristic of the plastic lens and the liquid optical element is decreased, irrespective of the temperature change, the dislocation of the image-formation position to a predetermined image-formation surface can be removed.
摘要:
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.
摘要:
An optical system for recording or reproducing of information to or from an optical information recording medium, includes a light source, a coupling lens for converting a diverging light emergent from the light source to a converging light, and an objective lens for further converging the converted converging light and for focusing on an information recording surface of the optical information recording medium. A lateral magnification M.sub.c of the coupling lens on an image side for a light source side and a numerical aperture NA.sub.o on the light source side of the coupling lens satisfy the following expressions respectively, -7.0.ltoreq.M.sub.c .ltoreq.-0.5 and 0.06.ltoreq.NA.sub.o .ltoreq.0.21.