Browse Prior Art Database

Electronic Slide Scanner and Reader

IP.com Disclosure Number: IPCOM000097777D
Original Publication Date: 1961-Jun-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 42K

Publishing Venue

IBM

Related People

Smithline, ET: AUTHOR

Abstract

Particular organisms identified by a unique color are automatically positioned in a microscope field. For instance, uniquely colored parasites are pinpointed in a blood smear.

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Electronic Slide Scanner and Reader

Particular organisms identified by a unique color are automatically positioned in a microscope field. For instance, uniquely colored parasites are pinpointed in a blood smear.

The transparent slide is moved in a scanning motion between a light and the microscope lens. An interference reflecting filter is chosen that does not pass the color of the stained organism. For example, a minus blue filter is used for blue stained organisms.

During scanning the filter passes high intensity light to the light sensing device until the stained organism comes into the lens field. The filter then passes a relatively low intensity light because the filter does not transmit the color of the organism.

The relay is normally closed. When the light intensity applied to the light sensing device decreases, a signal is applied to the relay through the current amplifier, opening the slide mover circuit and stopping the scanning action.

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