Ophthalmologic apparatus having two measuring systems

Claim 2

An ophthalmologic apparatus, comprising: a frame for measuring systems; a first measuring system, disposed in said frame for effecting a calculation of first information of an eye to be examined at a predetermined working distance relative to the eye to be examined, said frame being supported by a slidable bed, said first measuring system effecting the calculation when said frame and the eye to be examined are aligned with each other by moving the slidable bed; a second measuring system, disposed in said frame, said second measuring system including a measuring terminal for effecting a calculation of second information of the eye to be examined when said measuring terminal is brought into contact with the eye to be examined; and guiding means for linearly sliding said measuring terminal of said second measuring system relative to said frame aligned with the eye to be examined in the same direction as the optic axis of said first measuring system at least at positions directly before the eye to be examined without moving said slidable bed in the direction of the optic axis of said first measuring system when a change-over of said first measuring system and said second measuring system is performed.

Claim 3

An ophthalmologic apparatus according to claim 1, wherein said first measuring system is provided with an apertured mirror fixed in the optical path, and said measuring terminal is movable in the direction of the optic axis through the aperture of said apertured mirror.

Claim 4

An ophthalmologic apparatus according to claim 1, wherein said measuring terminal is biased toward the eye to be examined.

Claim 5

An ophthalmologic apparatus according to claim 1, further provided with an observation optical system through which the front eye part of the eye to be examined around said measuring terminal can be observed with said measuring terminal being in contact with the eye to be examined.

Claim 6

An ophthalmologic apparatus according to claim 4, wherein said observation optical system is provided with an optic axis forming a predetermined angle with respect to the direction of movement of said measuring terminal.

Claim 7

An ophthalmologic apparatus according to claim 4, wherein said observation optical system is provided with an optic axis coincident with the direction of movement of said measuring terminal.

Claim 8

An ophthalmologic apparatus according to claim 4, wherein said observation optical system and said first measuring system are provided with at least one common optical member.

Claim 9

An ophthalmologic apparatus according to claim 7, wherein said common optical member is a reflecting member, and the position of said reflecting member in said observation optical system is rotatably displaced relative to the position thereof in said first measuring system.

Claim 10

An ophthalmologic apparatus, comprising: a frame for measuring systems; a first detecting system, disposed in said frame for effecting the detection of first information of an eye to be examined at a predetermined working distance relative to the eye to be examined, said frame being supported by a slidable bed, said first detecting system effecting the calculation when said frame and the eye to be examined are aligned with each other by moving the slidable bed; a second detecting system, disposed in said frame, said second detecting system including a detecting terminal for effecting the detection of second information of the eye to be examined brought into contact with the eye to be examined; and movable means for moving said detecting terminal of said second detecting system relative to said frame aligned with the eye to be examined in the direction of the optic axis of said first detecting system at least at positions directly before the eye to be examined without moving said slidable bed in the direction of the optic axis of said first detecting system when a change-over of said first detecting system and said second detecting system is performed, wherein during the change-over from said first detecting system to said second detecting system, a predetermined optical member of said first detecting system is displaced from a position in the optical path of said first detecting system.

Claim 11

An ophthalmologic apparatus, comprising: a frame for measuring systems; a first detecting system, disposed in said frame for effecting the detection of first information of an eye to be examined at a predetermined working distance relative to the eye to be examined, said frame being supported by a slidable bed, said first detecting system effecting the calculation when said frame and the eye to be examined are aligned with each other by moving the slidable bed; a second detecting system, disposed in said frame, said second detecting system including a detecting terminal for effecting the detection of second information of the eye to be examined brought into contact with the eye to be examined; and movable means for moving said detecting terminal of said second detecting system relative to said frame aligned with the eye to be examined in the direction of the optic axis of said first detecting system at least at positions directly before the eye to be examined without moving said slidable bed in the direction of the optic axis of said first detecting system when a change-over of said first detecting system and said second detecting system is performed, wherein during the change-over from said first detecting system to said second detecting system, a predetermined optical member of said first detecting system is displaced from a position in the optical path of said first detecting system.

Claim 12

An ophthalmologic apparatus according to claim 9, wherein during the change-over from said first detecting system to said second detecting system, said detecting terminal is moved from a position rearward of said optical member to a position forward of said optical member.

Claim 13

An ophthalmologic apparatus according to claim 10, wherein said detecting terminal is moved only in the direction of the optic axis.

Claim 14

An ophthalmologic apparatus according to claim 10, wherein said detecting terminal is moved not only in the direction of the optic axis but also in a direction perpendicular to the optic axis.

Claim 15

An ophthalmologic apparatus according to claim 12, wherein said direction perpendicular to the optic axis is a vertical direction.

Claim 16

An ophthalmologic apparatus according to claim 10, wherein said detecting terminal is rotatably displaced about a predetermined point to thereby change over from said first detecting system to said second detecting system.

Claim 17

An ophthalmologic apparatus according to claim 10, wherein said optical member is an optical path deflecting member.

Claim 18

An ophthalmologic apparatus according to claim 10, wherein said optical member is an optical path deflecting member and an objective lens opposed to the eye to be examined.

Claim 19

An ophthalmologic apparatus comprising: a first detecting system, disposed in a frame, for effecting a detection of first information of an eye to be examined at a predetermined working distance relative to the eye to be examined, the frame being supported by a slidable bed, said first detecting system effecting the detection of first information when the frame and the eye to be examined are aligned with each other by moving the slidable bed; a second detecting system, disposed in the frame, for effecting the detection of second information of the eye to be examined with a detecting terminal thereof being brought into contact with the eye to be examined; and movable means for moving said detecting terminal of said second detecting system relative to the frame aligned with the eye to be examined in the direction of the optic axis of said first detecting system at least at positions directly before the eye to be examined without moving the slidable bed in the direction of the optic axis of the first detecting system when a change-over of said first detecting system and said second detecting system is performed, wherein said first information of the eye to be examined is cornea refractive power information and said second information of the eye to be examined is eye axis length information; said first detecting system being provided with an index mark, an imaging optical system for receiving the corneal reflection light of said index mark, and image position detecting means for detecting the position of the corneal reflection image of said index mark with respect to said imaging optical system.

Claim 20

An ophthalmologic apparatus comprising: a first detecting system, disposed in a frame, for effecting a detection of first information of an eye to be examined at a predetermined working distance relative to the eye to be examined, the frame being supported by a slidable bed, said first detecting system effecting the detection of first information when the frame and the eye to be examined are aligned with each other by moving the slidable bed; a second detecting system, disposed in the frame, for effecting the detection of second information of the eye to be examined with a detecting terminal thereof being brought into contact with the eye to be examined; and movable means for moving said detecting terminal of said second detecting system relative to the frame aligned with the eye to be examined in the direction of the optic axis of said first detecting system at least at positions directly before the eye to be examined without moving the slidable bed in the direction of the optic axis of the first detecting system when a change-over of said first detecting system and said second detecting system is performed, wherein said first information of the eye to be examined is cornea refractive power information and said second information of the eye to be examined is eye axis length information; said first detecting system being provided with an index mark, an imaging optical system for receiving the corneal reflection light of said index mark, and image position detecting means for detecting the position of the corneal reflection image of said index mark with respect to said imaging optical system.

Claim 21

An ophthalmologic apparatus according to claim 17, wherein the detecting terminal of said second detecting system contains an ultrasonic wave transmitter and an ultrasonic wave receiver therein.

Claim 22

An ophthalmologic apparatus according to claim 17, provided with a front eye part observation system during the use of said first detecting system.

Claim 23

An ophthalmologic apparatus according to claim 17, provided with a front eye part observation system during the use of said second detecting system.

Claim 24

An ophthalmologic apparatus according to claim 17, provided with a front eye part observation system during the use of any of said first detecting system and said second detecting system.

Claim 25

An ophthalmologic apparatus according to claim 17, wherein said image position detecting means is connected to a front eye part observation monitor and is used not only for the detection of the position of the corneal reflection image but also for the observation of the front eye part.

Claim 26

An ophthalmologic apparatus according to claim 22, further provided with an observation optical system through which the front eye part of the eye to be examined around said detecting terminal can be observed with said detecting terminal being in contact with the eye to be examined.

Claim 27

An ophthalmologic apparatus according to claim 23, wherein said image position detecting means is provided on the image surface of said observation optical system, and during the use of any of said first detecting system and said second detecting system, the observation of the front eye part is possible through said common image position detecting means and said monitor.

Claim 28

An ophthalmologic apparatus according to claim 17, wherein during the change-over from said first detecting system to said second detecting system, a predetermined optical member of said first detecting system is displaced from a position in the optical path.

Claim 29

An ophthalmologic apparatus according to claim 25, wherein during the change-over from said first detecting system to said second detecting system, said detecting terminal is moved from a position rearward of said optical member to a position forward of said optical member.

Claim 30

An ophthalmologic apparatus according to claim 26, wherein said detecting terminal is moved only in the direction of the optic axis.

Claim 31

An ophthalmologic apparatus according to claim 26, wherein said detecting terminal is moved not only in the direction of the optic axis but also in a direction perpendicular to the optic axis.

Claim 32

An ophthalmologic apparatus according to claim 28, wherein said direction perpendicular to the optic axis is a vertical direction.

Claim 33

An ophthalmologic apparatus according to claim 26, wherein said detecting terminal is rotatively displaced about a predetermined point to thereby change over from said first detecting system to said second detecting system.

Claim 34

An ophthalmologic apparatus according to claim 26, wherein said optical member is an optical path deflecting member.

Claim 35

An ophthalmologic apparatus according to claim 26, wherein said optical member is an optical path deflecting member and an objective lens opposed to the eye to be examined.

Claim 36

An ophthalmologic apparatus according to claim 17, wherein said first detecting system is provided with an apertured mirror fixed in the optical path, and said detecting terminal is movable in the direction of the optic axis through the aperture of said apertured mirror.

Claim 37

An ophthalmologic apparatus according to claim 17, wherein said detecting terminal is biased toward the eye to be examined.

Claim 38

An ophthalmologic apparatus according to claim 17, further provided with an observation optical system through which the front eye part of the eye to be examined around said detecting terminal can be observed with said detecting terminal being in contact with the eye to be examined.

Claim 39

An ophthalmologic apparatus according to claim 35, wherein said observation optical system is provided with an optic axis forming a predetermined angle with respect to the direction of movement of said detecting terminal.

Claim 40

An ophthalmologic apparatus according to claim 35, wherein said observation optical system is provided with an optic axis coincide with the direction of movement of said detecting terminal.

Claim 41

An ophthalmologic apparatus according to claim 35, wherein said observation optical system and said first detecting system are provided with at least one common optical member.

Claim 42

An ophthalmologic apparatus according to claim 38, wherein said common optical member is a reflecting member, and the position of said reflecting member in said observation optical system is rotatively displaced relative to the position thereof in said first detection system.

Claim 43

An ophthalmologic apparatus, comprising: a frame for detecting systems, said frame being supported by a slidable bed; a first detecting system, disposed in said frame for effecting the detection of first information of an eye to be examined at a position being apart from the eye to be examined, said first detecting system effecting the detection of first information when said frame and the eye to be examined are aligned with each other by moving the slidable bed; a second detecting system, disposed in said frame, said second detecting system including a detecting terminal for effecting the detection of second information of the eye to be examined brought into contact with the eye to be examined; and guiding means for guiding said detecting terminal to move relatively to said frame aligned with the eye to be examined in the direction of and apart from the eye to be examined without moving said slidable bed in the direction of and apart fromthe eye to be examined when a change-over of said first detecting system and said second detecting system is performed.

Claim 44

An ophthalmologic apparatus, comprising: a frame for detecting systems, said frame being supported by a slidable bed; a first detecting system, disposed in said frame for effecting the detection of first information of an eye to be examined at a position being apart from the eye to be examined, said first detecting system effecting the detection of first information when said frame and the eye to be examined are aligned with each other by moving the slidable bed; a second detecting system, disposed in said frame, said second detecting system including a detecting terminal for effecting the detection of second information of the eye to be examined brought into contact with the eye to be examined; and guiding means for guiding said detecting terminal to move relatively to said frame aligned with the eye to be examined in the direction of and apart from the eye to be examined without moving said slidable bed in the direction of and apart fromthe eye to be examined when a change-over of said first detecting system and said second detecting system is performed.