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US 5,131,159 AGranted
Spherometer
AssigneeOlympus Optical Co., Ltd.
InventorsMitsuaki Takahashi, Masaki Watanabe, Fumiaki Munakata
Life of this patent
Estimating the term…
Abstract
A spherometer for measuring the radius of curvature of 1 lens is disclosed. The spherometer comprises a spherometer ring having an annular portion or a part of an annular portion, a measuring member coaxially secured to the spherometer ring, a supporting member for supporting the spherometer ring, and a tilt facilitating member interposed between the spherometer ring and the ring supporting member.
Claims9
A spherometer comprising:
- a spherometer ring having at least a partial annular portion;
- a measuring member interconnected to the spherometer ring;
- a ring supporting member for supporting the spherometer ring;
- and
- at least one tilt facilitating member interposed between the spherometer ring and the ring supporting member such that the spherometer ring is movably mounted with respect to said ring supporting member for allowing tilting movement of the spherometer ring with respect to the ring supporting member during a measuring operation.
2 more elements
Dependencies are inferred from the claim text.