Optical-element Coater
Overall rating: (N/A)
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Controls vacuum coating equipment to coat optical elements
with chemical or metal film to alter reflective houses of
elements: Reads work odrer to ascertain thickness of optical
element and type coating material specified.
Installs heating
filament in coating machine according to type coating applied,
using screwdriver. Fills crucible with coating material and
positions crucible under heating filament.
Secures optical
element in jig and centres jig in vacuum chamber of machine to
ensure uniform coating of optical surface.
Places dome-shaped
lid (vacuum bell) over jig or lowres lid equipped with window
depending upon machine used.
Starts machine that creates vacuum
and releases chemicals or metal to form coating on optical
element by process of sublimation or atomization. Observes
changing colors of element through vacuum bell or through window
in lid to determine when element is coated to specifications, or
reads exposure meter to determine coating thickness.
Applies and
removes strip of cellophane to test adherence of coating to
otpical element.
May immrese elements in chemical solution to
clean elements. May opreate ultrasonic vibrator to clean
element. May insepct optical elements prior to coating to detect
defects, such as blemishes, abrasions, and rough edges, using
microscope. May cement optical elements together to form
multiple lmainated elements [Cementer (optical goods)].
May
spary emulsion on lens preparatory to coating.
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Optical-Element Coater
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