quality control of the spectacle
Post on 07-Aug-2015
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QUALITY CONTROL OF THE SPECTACLE
MADE BY : SWATI PANARAJAIMINI PATEL
• Quality means the totality of features and characteristics of a product or service that bear on its ability to satisfy given needs.
Quality control• Quality control is a management
system for initiating and co ordinating: Quality development, quality
maintenance and quality improvement in the various departments of design and manufacturing, for achieving the twin objectives of:
Economical production and customer satisfaction
Need for quality
• Increased productivity• Reduced cost of repairs• Increases loyal customer
base• Better profits
IN SPECTACLE WE ARE CHECKING….
• POWER• AXIS• CENTRATION• MATERIAL• TINT• PRISM• VERIFYING LENS SURFACE AND SEGMENTS• TESTING THE PARELLISM USING FLAT
SURFACE
(1)POWER : we are checking spherical and cylinder power…
• Power is checking by patient prescription card.
(2)AXIS : We are checking axis of cylinder power.
(3)CENTRATION : We are checking centration…
(4) MATERIAL : We are checking material that patient is order and spectacle lens material…
(5) PRISM : W are checking prism orientation if we are prescribing….
TESTING PARELLISM USING FLAT SURFACE
RIMLESS FRAME ALIGNMENT
• Checking the horizontal alignment of a rimless pair of glasses.
• Here the ruler is placed on the temporal holes. The nasal holes should be equidistant from the ruler.
VERIFYING LENS SEGMENT AND SURFACE
• We are verifying lens segment in bifocal.
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