Browse Prior Art Database

Slit-Scan Microfilmer With Dual Semi-Transparent Pivoting Mirrors and Microfilmed Item Numbering From Display

IP.com Disclosure Number: IPCOM000062299D
Original Publication Date: 1986-Nov-01
Included in the Prior Art Database: 2005-Mar-09
Document File: 2 page(s) / 43K

Publishing Venue

IBM

Related People

White, JM: AUTHOR

Abstract

The figure discloses a dual pivoting mirror system for exposing microfilm using a slit-scanning apparatus. Additional information (e.g., an item or sequence number) may be imaged onto the microfilm through semi- transparent pivoting mirrors simultaneously with the image from the slit in a predetermined location with respect to the image. A belt and roller system 1 transports a check C past a slit 3. The system includes multiple rollers to contact the check at multiple positions since only the area of the slit 3 must be optically free from obstructions. A lamp 4 illuminates the slit and the transported check C of the slit. Light is reflected from the front of the check C along a first optical path A to mirror system 6A, semi-transparent pivoting mirror 7A, and through lens 8 to form an image on the microfilm 9.

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Slit-Scan Microfilmer With Dual Semi-Transparent Pivoting Mirrors and Microfilmed Item Numbering From Display

The figure discloses a dual pivoting mirror system for exposing microfilm using a slit-scanning apparatus. Additional information (e.g., an item or sequence number) may be imaged onto the microfilm through semi- transparent pivoting mirrors simultaneously with the image from the slit in a predetermined location with respect to the image. A belt and roller system 1 transports a check C past a slit 3. The system includes multiple rollers to contact the check at multiple positions since only the area of the slit 3 must be optically free from obstructions. A lamp 4 illuminates the slit and the transported check C of the slit. Light is reflected from the front of the check C along a first optical path A to mirror system 6A, semi-transparent pivoting mirror 7A, and through lens 8 to form an image on the microfilm 9. Light from the back of the check C is passed along a second light path B and is similarly reflected from mirror system 6B and semi-transparent pivoting mirror 7B through fixed lens 8 onto microfilm 9. Light from paths A and B representing, respectively, images of front and back of the check C are simultaneously imaged on the microfilm 9. This is possible by virtue of the paths A and B being located in different planes. The image from the back of the check thus passes around the check in a known manner using mirrors (not shown). Shutter 10 blocks opt...