Lens measuring apparatus

A lens measuring apparatus comprising:

• a light beam projecting unit for projecting a light beam onto a lens to be examined;
• a photoelectric detector for detecting a position of the light beam projected onto and passing through said lens to be examined;
• a display unit;
• a calculator for calculating refraction information of said lens to be examined on the basis of the detection by said photoelectric detector, said calculator detecting the degree of asymmetrical asphericity of the examined portion of said lens to be examined on the basis of the detection by said photoelectric detector, said calculator causing said display unit to display the refraction information of said lens to be examined when a degree of asymmetrical asphericity of the examined portion of said lens to be examined is below a predetermined value.

A lens measuring apparatus comprising:

• a light beam projecting unit for projecting a light beam onto a lens to be examined;
• a photoelectric detector for detecting a position of the light beam projected onto and passing through said lens to be examined;
• a display unit;
• and
• a calculator for calculating refraction information of said lens to be examined on the basis of the detection by said photoelectric detector, said calculator detecting the degrees of assymmetrical asphericity of the examined portion of said lens to be examined on the basis of the detection by said photoelectric detector, said calculator causing said display unit to display an indication when a degree of asymmetrical asphericity of the examined portion of said lens to be examined is below a predetermined value.