Portable lensmeter
AssigneeSmart Vision Labs
InventorYaopeng Zhou
Life of this patent
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Abstract
Portable lensmeters and portable lensmeter modules are disclosed. In one embodiment, a portable lensmeter module comprises a housing having an aperture formed therethrough and having a first slot formed therein for receiving and reversibly coupling to a lens; a light source disposed within the housing; and a microlens array disposed within the housing. The lens and the microlens array define an optical channel from the light source to the aperture when the lens is coupled to the housing; and a light detector of a mobile device is positioned adjacent to the aperture and at a focal point of the microlens array when the lensmeter module is mechanically coupled to the mobile device.
Claims6
A lensmeter for measuring a lens of a pair of prescription glasses, the lensmeter comprising:
- a housing having a slot formed therein for receiving and reversibly coupling to the lens;
- a light source disposed within the housing;
- a microlens array disposed within the housing, wherein the lens and the microlens array define an optical channel from the light source to the lens when the lens is coupled to the housing;
- and
- a light detector disposed within the housing, wherein the light detector is positioned at a focal point of the microlens array such that a spot pattern is projected onto the light detector when light generated by the light source passes through the optical channel.
Dependencies are inferred from the claim text.