Abstract: A control device for image blur correction, which is applied to an image blur correction device, includes a calculation section and restriction section. The calculation section performs at least read-in operation of reading in outputs from vibration sensors, performs first calculation by using the outputs, and generates a driving control signal for driving the image blur correction device. The calculation section also performs second calculation different from the first calculation. The restriction section permits read-in operation of the output from the vibration sensors but restricts the first calculation when the calculation section performs the second calculation. With this arrangement, when the timing at which the calculation section performs the second calculation overlaps the timing at which the calculation section performs the first calculation, the first calculation is not performed, but the outputs from the vibration sensors is read in.

Abstract: An optical apparatus includes a projecting optical system for projecting an image of an object in a viewfield onto an image receiving surface. First detecting structure is provided for detecting which position is viewed in the viewfield. Second detecting structure is provided for detecting a defocus for the image receiving surface of the image of the object. Optical system driving structure is provided for driving a portion of the projecting optical system according to the defocus detected by the second detecting structure. A processor is provided for causing the detection by said second detecting structure and the drive by said optical system driving structure to be repeated until the image of the object is focused on the image receiving surface.

Abstract: A camera operating in a plurality of photographing modes is provided with an image receiver for receiving the optical image of an object, a viewfinder for observing the object therethrough, a display device for displaying the photographing modes in visually recognizable characters so that they can be seen through the viewfinder, detecting means for detecting the direction of the visual axis of the photographer gazing at desired one of the characters, means for causing the photographer to recognize the completion of the selection of the photographing mode, and a controller for setting the camera to the selected photographing mode in conformity with the result of the detection by the detecting means, and controlling the camera in the selected photographing mode.

Abstract: A camera comprising: finder means for inspecting an object, illumination means for illuminating an operator's eye by which the operator looks in at the finder means, a condensing optical system for condensing a reflected light from the operator's eye, photoelectric converter means for receiving the condensed reflected light, calculation means for calculating a direction of a visual axis of the operator's eye on the basis of an output of the photoelectric converter means, and condition setting means operable in response to the result of the calculation of the calculation means, for setting taking conditions of the camera.

Abstract: There is disclosed an arrangement which has a projection means (LEDs) for projecting a light, a display means (mirror, finder view field range and the like) for guiding the light projected by the projection means to a predetermined display portion to display an index in the display portion, a variable means (masks, motor, decentring axis and the like) for periodically changing a projecting direction of the light of the projection means, and a control means (mask position detection circuit, control circuit and the like) for determining a projection timing of the projection means in accordance with the projecting direction changed by the variable means to control a position of the index on the display portion. By controlling the projection timing of the projection means, the position of the index in the display portion is controlled. Thereby, without irregularly or complicatedly changing the projecting direction itself, the index can be variously displayed.

Abstract: An eye axis detector for detecting to which position the eye axis of a user is directed in a picture, comprising means for dividing and specifying the picture into a plurality of pictures, and means for extracting the watching point of the user using a plurality of types of eye axis information concerning the eye axis in each area within such divided picture.

Abstract: An image taking apparatus changing a size of the image receiving area based on a detected visual axis includes structure for detecting that a visual axis of an operator of the apparatus is directed to a mark lying in a viewfield. Image pickup structure is provided for receiving an image of an object in the viewfield, and for outputting electrical signals corresponding to the received image, the image pickup structure having an image receiving area from which the electrical signals are generated. Structure is provided for changing the size of the image receiving area of the image pickup structure when the visual axis is directed to the mark.

Abstract: A gazing point detecting device is provided with means for receiving light reflected by an observer's eye and providing an electrical signal, first means for forming gazing axis information regarding the direction of the observer's gazing axis on the basis of the electrical signal, and second means for selecting on the basis of the gazing axis information the direction of the gazing axis which has been pointed to for the longest time of a predetermined unit time or the direction of the gazing axis which is highest in frequency, and forming a signal indicative of the observer's gazing point.

Abstract: In a pupil center detection method and a pupil ring portion detection method, which can obtain a pupil center and a pupil ring portion necessary for calculating a sight axis of an eyeball from specific points on the basis of a light beam reflected by the eyeball, when the position of the pupil center of the eyeball is detected by utilizing an image based on a light beam radiated from a projection device onto the eyeball and reflected by the eyeball, a large number of pupil ring portion positions are obtained, an average value and a standard deviation of the large number of pupil ring portion positions are obtained, and the pupil center is detected using values within a range defined by the average value and the standard deviation.

Abstract: In a pupil center detection method and a pupil ring portion detection method, which can obtain a pupil center and a pupil ring portion necessary for calculating a sight axis of an eyeball from specific points on the basis of a light beam reflected by the eyeball, when the position of the pupil center of the eyeball is detected by utilizing an image based on a light beam radiated from a projection device onto the eyeball and reflected by the eyeball, a large number of pupil ring portion positions are obtained, an average value and a standard deviation of the large number of pupil ring portion positions are obtained, and the pupil center is detected using values within a range defined by the average value and the standard deviation.

Abstract: In a pupil center detection method and a pupil ring portion detection method, which can obtain a pupil center and a pupil ring portion necessary for calculating a sight axis of an eyeball from specific points on the basis of a light beam reflected by the eyeball, when the position of the pupil center of the eyeball is detected by utilizing an image based on a light beam radiated from a projection device onto the eyeball and reflected by the eyeball, a large number of pupil ring portion positions are obtained, an average value and a standard deviation of the large number of pupil ring portion positions are obtained, and the pupil center is detected using values within a range defined by the average value and the standard deviation.

Abstract: An optical apparatus detects a visual point of an observer, and reduces the visual axis detection error due to anatomical differences between people, such as the difference in the size of the eye. The apparatus sequentially displays a plurality of marks in a finder, and can calculate a precise visual point position on the basis of errors between the calculated visual point position and the marks when the observer sequentially watches these marks.

Abstract: The invention relates to an apparatus with an illumination device for illuminating an eyeball; a light-receiving device having a plurality of photoelectric changing elements for changing reflected light from the eyeball; a storage device for storing a plurality of Purkinje image candidates among the signals obtained by receiving light with said light-receiving device; a selection device for selecting suitable Purkinje image candidates as the Purkinje image from the plurality of Purkinje image candidates; and a detection device for detecting the state of the visual axis on the basis of the Purkinje image selected by the selection device.

Abstract: View point detecting apparatus wherein first and subsequent view point data are compared includes state detecting structure for detecting the state of an observer's view point. Circuitry is provided for determining, when amounts of a variation between a first view point information and a subsequent view point information exceed a predetermined value, that the first view point information is effective. Preferably, structure is also provided for adjusting a photo-taking lens on the basis of the first view point information.

Abstract: An apparatus for detecting the visual axis of an observer in accordance with light reflected by a photo-sensor by illuminating an eye of the observer includes a controller means for controlling the accumulation time of the photo-sensor or a quantity of light emitted by a light projector so that the reflected light is sufficient to permit the detection of the visual axis.

Abstract: A camera includes a finder for inspecting an object, a illuminator for illuminating an operator's eye by which the operator looks in at the finder means, a condensing optical system for condensing a reflected light from the operator's eye, a photoelectric converter for receiving the condensed reflected light, calculator for calculating a direction of a visual axis of the operator's eye on the basis of an output of the photoelectric converter, and a condition setter operable in response to the result of the calculation of the calculator for setting photographing conditions of the camera.

Abstract: In a pupil center detection method and a pupil ring portion detection method, which can obtain a pupil center and a pupil ring portion necessary for calculating a sight axis of an eyeball from specific points on the basis of a light beam reflected by the eyeball, when the position of the pupil center of the eyeball is detected by utilizing an image based on a light beam radiated from a projection device onto the eyeball and reflected by the eyeball, a large number of pupil ring portion positions are obtained, an average value and a standard deviation of the large number of pupil ring portion positions are obtained, and the pupil center is detected using values within a range defined by the average value and the standard deviation.

Abstract: A camera in which focus is detected for a plurality of viewfields within a selected observation block includes observation structure for observing an object therethrough, and visual axis detecting structure for detecting the position of the visual axis of an observer's eye. A plurality of observation blocks are defined, each block having a plurality of detection viewfields. Structure is provided for selecting one of the blocks in accordance with a result of the detection of the visual axis detecting structure. Focus detection circuitry is provided for performing a focus detection operation with respect to the detection viewfields which are included within the selected observation block. Circuitry is also provided for forming a focus adjustment signal for an objective lens on the basis of the detection information of the focus detection circuitry regarding the detection viewfields of the selected observation block.

Abstract: An automatic focusing device in which a plurality of points in a picture frame are measured in distance to form focusing information. The device is provided with weighting means for laying an emphasis on a substantially central portion of the picture frame and another emphasis on the near object distance when forming the above-described focusing information.

Abstract: A visual axis detector includes an illumination device for illuminating an eye; an optical device for guiding light from the eye; the light being in a form of a light intensity distribution having first and second portions; a photo-sensing device, having an array of photo-cells, for receiving the light guided by the optical device, and for generating an electrical signal corresponding to the light intensity distribution; an arithmetic operation device for calculating a visual axis of the eye in accordance with the electrical signal generated by the photo-sensing device; and a control device for controlling the photo-sensing device to have different sensitivities for sensing the first and second portions of the light intensity distribution.