Abstract: An ophthalmic apparatus comprises: a main unit including a photographing device for photographing an examinee's eye; a monitor provided in the main unit, the monitor including a displaying device for displaying an image of the eye photographed by the photographing device and a setting device for setting a predetermined function; a rotation mechanism for rotating the monitor from an almost vertical position to an almost horizontal position with respect to the main unit; a first lock mechanism for locking the monitor at each predetermined tilt angle, the first lock mechanism being arranged to allow upward rotation of the monitor but restrict downward rotation of the monitor in the course of rotating the monitor from the almost vertical position to the almost horizontal position; and a first unlock mechanism arranged to release the restriction of the downward rotation of the monitor by the first lock mechanism based on further upward rotation of the monitor after the monitor is locked in a first maximum tilt loc

Abstract: An optotype presenting apparatus, by which red and green optotypes can be visually perceived independently by right and left eyes even if red filters and/or green filters have different wavelength transmission characteristics, comprises a color display, a unit having a switch for selecting a test chart including visual acuity and red-green binocular visual performance test charts, wherein the binocular test chart includes the optotypes and is used in the test performed with the filters in front of the eyes, a memory storing color adjustment data in which at least one of color tones of the optotypes is varied with the characteristic of one of the filters, a unit for inputting a signal for selecting one of the data, and a unit controlling the display to display the selected chart and adjusting the tones by reading the selected data from the memory when the binocular test chart is selected.

Abstract: An ophthalmic apparatus comprises: a main unit including a photographing device for photographing an examinee's eye; a monitor provided in the main unit, the monitor including a displaying device for displaying an image of the eye photographed by the photographing device and a setting device for setting a predetermined function; a rotation mechanism for rotating the monitor from an almost vertical position to an almost horizontal position with respect to the main unit; a first lock mechanism for locking the monitor at each predetermined tilt angle, the first lock mechanism being arranged to allow upward rotation of the monitor but restrict downward rotation of the monitor in the course of rotating the monitor from the almost vertical position to the almost horizontal position; and a first unlock mechanism arranged to release the restriction of the downward rotation of the monitor by the first lock mechanism based on further upward rotation of the monitor after the monitor is locked in a first maximum tilt loc

Abstract: An optotype presenting apparatus capable of presenting an optotype having a high degree of flexibility to an examinee's eye while a production cost of the apparatus is curbed comprises a main body comprising an optotype forming unit comprising first and second displays displaying optotypes, and a beam combiner combining optical paths of the displays, the optotype forming unit adjusting, if optotype light bundles have polarizing axes, the axes, and providing, if optotype light bundles have no polarizing axis, polarizing axes to the bundles, whereby the bundles form optotypes having the perpendicular polarizing axes, and a projection optical system for projecting the light bundles onto the eye at a test distance, an optotype selecting unit, and a display control unit controlling the displays to display binocular-vision-test optotypes if they are selected, and controlling one of the displays to display a visual-acuity-test optotype if it is selected.

Abstract: An optotype presenting apparatus capable of performing a test with accuracy by minimizing differences in manners an optotype is seen by examinees which result from differences in height of eyes among the examinees comprising a display unit comprising pixels having color filters arranged in a longitudinal direction, a polarization optical member comprising first and second optical regions in the form of a longitudinal line corresponding to the arrangement of the pixels which are alternately arranged in a lateral direction, the regions converting light from the display unit into light having polarizing axes perpendicular to each other, an optotype selecting unit, and a display control unit controlling the pixels corresponding to the first regions to display first optotypes of the optotype to be presented to a right or left eye, and controls the pixels corresponding to the second regions to display second optotypes thereof to be presented to the other eye.

Abstract: An optotype presenting apparatus capable of presenting an optotype having a high degree of flexibility to an examinee's eye while a production cost of the apparatus is curbed comprises a main body comprising an optotype forming unit comprising first and second displays displaying optotypes, and a beam combiner combining optical paths of the displays, the optotype forming unit adjusting, if optotype light bundles have polarizing axes, the axes, and providing, if optotype light bundles have no polarizing axis, polarizing axes to the bundles, whereby the bundles form optotypes having the perpendicular polarizing axes, and a projection optical system for projecting the light bundles onto the eye at a test distance, an optotype selecting unit, and a display control unit controlling the displays to display binocular-vision-test optotypes if they are selected, and controlling one of the displays to display a visual-acuity-test optotype if it is selected.

Abstract: An optotype presenting apparatus for testing a visual function of an eye of an examinee comprises: a display unit including a display which displays various optotypes by controlling a number of pixels and a memory in which the optotypes to be displayed on the display are stored; an operation unit for inputting a selection signal to select an optotype to be displayed on the display; and a display control unit for switching an optotype to the selected optotype in such a manner as to cause the optotype displayed before switching to disappear in response to the selection signal and then display the selected optotype after 0.05 second to 1.0 second from the disappearance of the optotype displayed before switching.

Abstract: An optotype presenting apparatus, by which red and green optotypes can be visually perceived independently by right and left eyes even if red filters and/or green filters have different wavelength transmission characteristics, comprises a color display, a unit having a switch for selecting a test chart including visual acuity and red-green binocular visual performance test charts, wherein the binocular test chart includes the optotypes and is used in the test performed with the filters in front of the eyes, a memory storing color adjustment data in which at least one of color tones of the optotypes is varied with the characteristic of one of the filters, a unit for inputting a signal for selecting one of the data, and a unit controlling the display to display the selected chart and adjusting the tones by reading the selected data from the memory when the binocular test chart is selected.

Abstract: An optotype presenting apparatus capable of performing a test with accuracy by minimizing differences in manners an optotype is seen by examinees which result from differences in height of eyes among the examinees comprising a display unit comprising pixels having color filters arranged in a longitudinal direction, a polarization optical member comprising first and second optical regions in the form of a longitudinal line corresponding to the arrangement of the pixels which are alternately arranged in a lateral direction, the regions converting light from the display unit into light having polarizing axes perpendicular to each other, an optotype selecting unit, and a display control unit controlling the pixels corresponding to the first regions to display first optotypes of the optotype to be presented to a right or left eye, and controls the pixels corresponding to the second regions to display second optotypes thereof to be presented to the other eye.

Abstract: An optotype presenting apparatus for testing a visual function of an eye of an examinee comprises: a display unit including a display which displays various optotypes by controlling a number of pixels and a memory in which the optotypes to be displayed on the display are stored; an operation unit for inputting a selection signal to select an optotype to be displayed on the display; and a display control unit for switching an optotype to the selected optotype in such a manner as to cause the optotype displayed before switching to disappear in response to the selection signal and then display the selected optotype after 0.05 second to 1.0 second from the disappearance of the optotype displayed before switching.

Abstract: A inspecting device for a semiconductor wafer comprises: a holding unit which holds a wafer; an aligner unit which detects a cutout position and a center position of the wafer held by the holding unit and obtains position determining data of the wafer; an observing unit for magnifying and observing fine patterns on the wafer, the observing unit being disposed at a position where the wafer held by the holding unit can be observed; a moving unit which relatively moves the holding unit with respect to the observing unit; and a control unit which controls the moving unit to move the holding unit based on the obtained position data so that the fine patterns at a desired position can be observed.

Abstract: A inspecting device for a semiconductor wafer comprises: a holding unit which holds a wafer; an aligner unit which detects a cutout position and a center position of the wafer held by the holding unit and obtains position determining data of the wafer; an observing unit for magnifying and observing fine patterns on the wafer, the observing unit being disposed at a position where the wafer held by the holding unit can be observed; a moving unit which relatively moves the holding unit with respect to the observing unit; and a control unit which controls the moving unit to move the holding unit based on the obtained position data so that the fine patterns at a desired position can be observed.

Abstract: A sample inspecting apparatus which performs a visual inspection of a sample to be inspected by reflected light therefrom, the apparatus comprising holding device which holds the sample at its periphery, first rotating device which rotates the holding device on a first axis passing through an approximate center of the sample being held by the holding device and second rotating device which rotates the holding device on a second axis passing through the approximate center of the sample being held by the holding device.