Emage Vision Pte. Ltd.

Ya'akob Bin Mohamed

Sergey Smorgon

Bee Chuan Tan

Chern Fei Chua

Santosh Singh Elangbam

A manual inspection system and method to inspect for defects in Contact lenses comprising; an image acquisition system with at least two high resolution cameras; Top illumination light head used for acquiring Bright field images; a Backlit illumination module to acquire Dark field images; at least another back lit illumination module to acquire a different type of Bright field images; an interchangeable mechanism to change measurement gauges suitable for a particular product; a rotating wheel embedded with multiple optical filters to cater to different imaging requirements; a first camera to capture the full view of the contact lens at a beam splitter; a second camera suitably mounted on a swivel arm to capture a higher resolution image of a selected defective area as viewed on a projection screen; a glass template or measurement gauge mounted at a suitable position to achieve overlaid images of the lens and the gauge on a projection screen for taking measurements; a flexible template measurement gauge as an optional overlay, to replace the glass template, suitably mounted on the projection screen for easy measurement of defects and geometry of the contact lens; an XYZ table to position the contact lens; creating a database on the computer that tabulates geometrical information and detailed defect information along with their respective positional information; and subsequently analyzing the database images to arrive at corrective actions to the manufacturing process to improve the quality and yields in the contact lens.

Contact lens defect analysis and tracing system

A system for producing a high contrast image of an ophthalmic lens under inspection, comprising: top camera to view ophthalmic lens through lens module; motorized mechanism for positioning top camera at two pre-programmed positions; three illumination modules; said illumination modules focusing light through ophthalmic lens under inspection, thereby producing a high contrast image of features of ophthalmic lens; wherein ophthalmic lens is contained within cuvette with optical power of positive of ten; said cuvette mounted with two optical windows, one of them being vertical and other at an angle; said cuvette having transparent bottom glass suitably designed to position ophthalmic lens under inspection; said cuvette designed to be filled with saline solution; accurately calibrated test object positioned to achieve image of ophthalmic lens overlaid with image of pattern present on test object; additional illumination source comprising laser diode; and second camera to view ophthalmic lens through slanted optical lens module.

System and method for inspecting optical power and thickness of ophthalmic lenses immersed in a solution

An inspection system to inspect the consistency and thermal seal quality of blister packages, the system comprising an illumination module and a color imaging device suitably integrated with an optical module. The blister packages that are thermally sealed are sequentially presented to the color imaging device within its Field of View whereupon the inspection captures multiple images of the illuminated top side of the sealed blister package using the said image pickup devise. The images then undergo analysis to determine the gray scale values of the sealing area. By comparing the gray level values with predetermined gray level values that are programmed at setup, a decision is made to reject the inspected item if the analyzed gray level values is not substantially the same as the predetermined gray level values, or to accept the inspected item if the analyzed gray level values is substantially the same as the predetermined gray level values or rejecting the blister if determined otherwise.

Growing community of inventors

Singapore, Singapore

Ya'akob Bin Mohamed