Square D Company

George Bartosiak

Sam Paris

Arthur E Goldberg

Christopher Siskovic

Henry H Tap

Eugene F Kalley

Jeffrey M Kresch

William J Danley

A solid state laser visible light source (26) passes light through a scanning mechanism (22) otherwise used to convey radiation from a target (12) to a detector (28) of a scanning radiation sensor (10) to mark with light a line (16) which is continuous when the sensor (10) is operating in a continuous mode, but when the sensor is operated in a spot mode in which a plurality of spots along a scan line are to be individually measured, a control (30) causes the light source to turn on and off at the correct times in the scan cycle to cause the light source (26) to mark the plural spots on the scan line (16). A CCD camera (40) with an automatic gain control circuit (46) is used in conjunction with a band pass light filter (36) to substantially enhance viewability of the image of the light markings (16) on the target (12) on a display (44).

Scanning infrared temperature sensor with sighting apparatus

An infrared thermometer (10) with a fixed aperture (99), focusable remote pickup head (12) conveys infrared light (16) from a target (14) to a photosensor (52) of a defocused sensor head (20). The remote pickup head (12) has a reimaging lens (84) and means for selectively adjusting the focus of the lens (84) relative to the target (14) after the pickup head has been fixedly mounted. The aperture setting is kept fixed during the focus adjustment to eliminate the need to recalibrate after the focus adjustment. The defocused sensor head (20) has a defocused relay lens (50) which is selectively out of focus to convey a slightly blurred, out of focus image of the output end of the fiber optic cable (18) to the photosensor (52) to reduce noise, average the light signal and reduce calibration difficulties due to high intensity spots in the image field and to make the unit less susceptible to misfocusing. Precision is further enhanced by provision of a field stop member (86) with a narrow slot, for instance, for passing light only to selected parts of the input end of the fiber optic cable (18) which makes up the optical field.

Method of using infrared thermometer with remote fiber optic pickup

Infrared thermometer with fiber optic remote pickup

Growing community of inventors

Naperville, IL, United States of America

George Bartosiak