Lens meter

Claim 2

A lens meter including means for measuring the optical characteristics of a lens to be processed, means for inputting information of the outer periphery of the lens, means for inputting information of spectacle frame, and means for composite displaying the optical characteristics, the information of the outer periphery of the lens, and the information of the frame configuration.

Claim 3

A lens meter including means for measuring the optical characteristics of the center of the external configuration of a lens to be processed, means for inputting the diameter of the lens, means for inputting information of the configuration of a frame for a pair of spectacles, means for inputting distances between the centers of lense frames of the spectacles, and between the pupils of the person wearing the spectacles, or a differences in distances between the centers of lense frames of the spectacles and between the pupils, arithmetic means for calculating the position of the optical center from the prism quantity in the center of the external configuration of the lens measured by the measuring means, and means for composite displaying the lens frame of the spectacles and the eye point position of the person wearing the spectacles obtained by said frame configuration information input means and said distance input means and the information of the outer periphery of the lens when the eye point position and the optical center are brought to be coincident with each other on the same screen.

Claim 4

A lens meter including means for measuring the optical characteristics of the center of the external configuration of a lens to be processed, means for inputting the diameter of the lens, means for inputting information of the configuration of a frame for a pair of spectacles, means for inputting distances between the centers of lense frames of the spectacles, and between the pupils of the person wearing the spectacles, or a differences in distances between the centers of lense frames of the spectacles and between the pupils, arithmetic means for calculating the position of the optical center from the prism quantity in the center of the external configuration of the lens measured by the measuring means, and means for composite displaying the lens frame of the spectacles and the eye point position of the person wearing the spectacles obtained by said frame configuration information input means and said distance input means and the information of the outer periphery of the lens when the eye point position and the optical center are brought to be coincident with each other on the same screen.

Claim 5

A lens meter according to claim 2 which further includes means for inputting eye inspection data, and said display means is adapted to composite displaying the astigmatism axis of the eye inspection data on the eye point position.

Claim 6

A lens meter including means for making a "YES" or "NO" judgment for processing a lens to be processed in accordance with the lens frame of the spectacles and the eye point position of the person wearing the spectacles and the information of the outer periphery of the lens, and means for displaying the result of said judgment.

Claim 7

A lens meter including means for making a "YES" or "NO" judgment for processing a lens to be processed in accordance with the lens frame of the spectacles and the eye point position of the person wearing the spectacles and the information of the outer periphery of the lens, and means for displaying the result of said judgment.

Claim 8

A lens meter including means for measuring the optical characteristics of a lens to be processed, and means for mounting the jig on the lens held on a lens holding portion of said measuring means.

Claim 9

A lens meter including means for measuring the optical characteristics of a lens to be processed, and means for mounting the jig on the lens held on a lens holding portion of said measuring means.

Claim 10

A lens meter including means for inputting lens data properly treated in accordance with the eye inspection, arithmetic means for comparing the data input by said lens data means with the result of the measurement obtained by means for measuring the optical characteristic of the lens in order to find whether they are coincident with each other, and means for displaying the result of the judgment made by the arithmetic means.

Claim 11

A lens meter including means for inputting lens data properly treated in accordance with the eye inspection, arithmetic means for comparing the data input by said lens data means with the result of the measurement obtained by means for measuring the optical characteristic of the lens in order to find whether they are coincident with each other, and means for displaying the result of the judgment made by the arithmetic means.

Claim 12

A lens meter including means for inputting information of the frame configuration of spectacles, means for inputting the distance between the centers of the lens frames of the spectacles and the distance between the pupils of the person wearing the spectacles, or a difference between the distance between the centers of the lens frames and the distance between the pupils, means for measuring the optical characteristics of the lens, means for displaying the optical characteristics and information of the frame configuration, a first observation optical path for observing the display surface of the display means, and a second observation optical path for observing the external configuration and the outer surface of the lens, and said first and second observation optical paths including a common optical path for simultaneously visually confirming the display on the display surface and the lens which are placed one upon the other.

Claim 13

A lens meter including means for inputting information of the frame configuration of spectacles, means for inputting the distance between the centers of the lens frames of the spectacles and the distance between the pupils of the person wearing the spectacles, or a difference between the distance between the centers of the lens frames and the distance between the pupils, means for measuring the optical characteristics of the lens, means for displaying the optical characteristics and information of the frame configuration, a first observation optical path for observing the display surface of the display means, and a second observation optical path for observing the external configuration and the outer surface of the lens, and said first and second observation optical paths including a common optical path for simultaneously visually confirming the display on the display surface and the lens which are placed one upon the other.

Claim 14

A lens meter according to claim 7 which further includes an input device for inputting the prescription data, and in which the display surface of the display means is set to display the orientation of the astigmatism axis from the data input by the input device.

Claim 15

A lens meter according to claim 8 which further includes means for issuing a warning when there is a difference between the refractive power of the prescription data input and the refractive power of the lens measured.