Abstract: A visual axis controllable optical apparatus, which is used in different postures. The optical apparatus includes a light detecting device for receiving light reflected by an eye, and detecting the intensity distribution of the received light, a storage device for storing personal data associated with a personal difference of the eye in correspondence with the different postures and a visual axis detecting device for detecting a visual axis. The visual axis detecting device detects the position of the visual axis using the personal data stored in the storage device corresponding to the posture of the optical apparatus, and the intensity distribution detected by the light detecting device.

Abstract: An optical apparatus for detecting rotation of an eyeball of an observer to provide sight line information, including an optical unit for imaging light flux from the eye of the observer, an image sensor for receiving light flux from the optical unit, and a control unit for designating a read-out region for the image sensor and reading out information from the read-out region.

Abstract: There is disclosed an apparatus including an illuminating unit for illuminating an eyeball, a light-receiving unit for receiving light reflected by the eyeball to measure the state of an anterior eye portion, and a holding unit for holding the illuminating unit and the light-receiving unit. The apparatus can be easily assembled, and optical characteristics are properly determined to accurately detect the state of the anterior eye portion.

Abstract: An optical device having a line of sight detection circuit, includes a line of sight detection circuit for detecting the line of sight of a user, a display member for displaying the position of the line of sight detected by the line of sight detection circuit, an operation unit which can operate in a plurality of operation modes on the basis of information of the line of sight detected by the line of sight detection circuit. The display member changes the display mode for the line of sight position in accordance with the operation mode of the operation unit.

Abstract: A sight line detecting device includes a controller operable in a sight line information using mode for controlling an optical apparatus for use in accordance with sight line information, and usable in a sight line information prohibiting mode for controlling the apparatus without using the sight line information. A selector selects either mode for controlling the optical apparatus.

Abstract: A focus adjusting apparatus which includes a focus detection device for independently detecting focus states of N different regions in a scene. The apparatus includes a selection circuit and a focus adjustment circuit. The selection circuit simultaneously selects, among the N regions, an arbitrary number of regions, the arbitrary number being less than N, and the selection circuit setting, among the N regions which are all selectable, a first number and a second number, different from the first number, of regions as regions simultaneously selected. The focus adjustment circuit performs focus adjustment on the basis of the focus states independently detected in the regions set by the selection circuit.

Abstract: A visual axis detection apparatus including a correction data storage section to store the correction data to correct errors in the detected visual information; an individual variation correction data detection system to detect the individual variation data related to the visual axis of an observer; a correction data updating section to update the correction data on the basis of the new individual variation data detected by the individual variation detection system and the correction data stored in the correction data storage section; and a visual axis correction section to correct the detected visual axis by use of the correction data updated by the correction data updating section and stored in the correction data storage section. The apparatus adds a weight to the already stored correction data in accordance with the individual variation data when obtaining individual variation data anew, and uses this weighted data as the correction data.

Abstract: An apparatus having an irradiation device for irradiating the eye of an observer; a sensor having a number of pixels with a set pitch; an image forming optical unit for imaging light reflected by the eye onto the sensor; and an electronic circuit for making a signal denoting the direction of the line of sight of the eye in accordance with an output from the sensor, wherein the relationship expressed by Pitch X/.beta.<0.41 mm is satisfied when an assumption is made that the image forming magnification of the image forming unit is .beta. and the pitch of the pixels of the sensor is Pitch X so that accuracy in detecting the line of sight of the eye is improved.

Abstract: This invention relates to an optical apparatus with a visual axis detection function. The apparatus having finder means for observing an object, and visual axis detection means for detecting a visual axis position of an observer who looks into a field of view of a finder comprises a visual axis input index which is arranged in the field of view of the finder means, visual axis input means for executing a predetermined function selected when the visual axis detection means detects that the visual axis of the observer is located on or near the visual axis input index and selection means for causing the observer to select the predetermined function to be executed by said visual axis input means from a plurality of functions.

Abstract: In an imaging system having a variable magnification element, a controller for controlling magnification so as to achieve desirable image composition. An object image is projected onto a visual field of a camera view finder and divided into a number of small blocks. The distance to the image portion in each small block is detected by a multipoint range finder. Small blocks having the same detected distance, or small blocks whose distances differ by less than a predetermined threshold value, are grouped together into one or more medium block(s). An sight line detection sensor detects where, in the visual field of the view finder, a photographer's line of sight is directed. At least one medium block is selected as the final desired image to be photographed on the basis of the sight line determination.

Abstract: A camera is provided having a line-of-sight detecting device for detecting a line of sight of an observer, photometric means for detecting luminances of subareas into which a luminance detection area is partitioned, a selecting means for selecting a specific subarea from the plurality of subareas on the basis of information on the line of sight detected by the line-of-sight detecting means, and a calculating means for weighting the luminances of the plurality of subareas on the basis of the specific subarea selected by the selecting means.

Abstract: An apparatus for detecting information of an eye of a person includes a light illuminating unit for illuminating the eye of the person with light from a plurality of different positions, a photoelectrical changing device for detecting light reflected from the eye, and a controlling device for controlling the light illuminating unit in accordance with whether or not the person is wearing spectacles.

Abstract: An apparatus includes a photoelectric conversion device having a plurality of photoelectric conversion elements for converting light to photoelectric conversion signals and for transferring the photoelectric conversion signals to adjacent photoelectric conversion elements. The apparatus also includes a transfer speed changing device for changing a transfer speed during a period of an accumulation operation of the photoelectric conversion device, making it possible to measure the luminance of an eye exactly in a short period of time.

Abstract: An optical apparatus with a visual axis detecting device for converting the light reflected from the eyeball into an electrical signal and calculating the direction of visual axis from the electrical signal.Plural pairs of illuminating light sources are provided around the view finder, and one of the pairs is turned on to illuminate the eyeball, according to the output of a position detector detecting whether the optical apparatus is in a vertical or horizontal position, or of a distance detecting circuit for detecting the distance between the view finder and the eyeball, or of a judging circuit for judging whether the photographer wears spectacles or not, thereby enabling precise detection of the direction of visual axis.