Microfilm reader

• US 4,235,536 A
• Filed: 05/07/1979
• Issued: 11/25/1980
• Est. Priority Date: 05/11/1978
• Status: Expired due to Term

• Current Assignee: Agfa-Gevaert AG (Agfa-Gevaert N.V.)
• Original Assignee: Agfa-Gevaert AG (Agfa-Gevaert N.V.)
• Inventors: Hofmann, Wilfried, Rauffer, Walter, Lusch, Herbert
• Primary Examiner(s): Stephan, Steven L.
• Application Number:
  US06/036,494
• Time in Patent Office: 568 Days
• Field of Search: 353/27 R, 353/77, 353/78, 353/82, 353/72, 353/73, 353/119
• US Class Current: 353/27.00R
• CPC Class Codes: G03B 21/116 Handling microfiches

Abstract

A microfilm reader is provided which comprises two casings. The first casing comprises selection means for selecting a micropicture as well as means providing a projection beam for imaging the positioned micropicture through at least one selected orifice in the first casing. The second casing comprises at least one orifice for receiving the projection beam carrying the micropicture information and projection means for displaying the received micropicture information. The two casings can be attached in dual position and by proper positioning of mirrors the projection beam passes through matched orifices of the two casings. The remaining orifices are covered with covers.

Claims

1. A microfilm reader, comprising in combination,

a first casing comprising

selection means for selecting a micropicture from a plurality of micropictures on a micropicture carrier;

positioning means for positioning said micropicture;

projection beam means providing a projection beam for imaging said micropicture;

said first casing having at least a side surface and a top surface and at least two orifices, each capable of permitting the passage therethrough of the projection beam carrying the micropicture information which emanates from said projection beam means; and

at least one deflection mirror for deflecting the projection beam carrying the micropicture information through a selected orifice;

said orifaces being positioned in two different surfaces of said first casing, said first casing having an orientation during use wherein one of said surfaces is the top surface and the other said surface is one of the side surfaces;

a second casing comprising at least one orifice for receiving the projection beam; and

a screen displaying the received micropicture information; and

means for attaching the second casing to the first casing in at least two different orientations with one orifice of the first casing matching one orifice of the second casing in each orientation in order to transfer the projection beam carrying the micropicture information from the first casing to the second casing and wherein in the first orientation the second casing is placed adjacent the first casing aligned along a horizontal axis and in the second orientation the second casing is placed on top of the first casing such that the two casings are aligned along a vertical axis.

2. The microfilm reader as set forth in claim 1 wherein the first casing and the second casing are of about equal size.

4. The microfilm reader as set forth in claim 1, wherein the first casing and the second casing are of about equal shape.

5. The microfilm reader as set forth in claim 1, wherein the first casing has a front side providing access to controls for selection means and for positioning means;

and wherein the second casing has a front side incorporating the projection screen.

6. The microfilm reader as set forth in claim 5, wherein the casings are suitable for placement in a rack.

7. The microfilm reader as set forth in claim 6, wherein the casings are provided with means for retaining the casings in a rack.

8. The microfilm reader as set forth in claim 6, wherein each of the casings has at least one holder for manually placing the casing into a rack.

9. The microfilm reader as set forth in claim 1, wherein those orifices which are not employed in the transfer of the projection beam are closable.

10. The microfilm reader as set forth in claim 1, wherein the first casing comprises illumination means for providing a projection beam illuminating the micropicture and wherein the positioning means adjusts the position of the microfilm picture relative to the projection beam, and comprising an imaging objective for the microfilm picture;

and a deflection mirror mounted in said first casing spacially close to the imaging objective for selectively directing the projection beam in alternate directions.

11. The microfilm reader as set forth in claim 10, wherein the second casing comprises at least one mirror;

and a translucent projection surface.

12. The microfilm reader as set forth in claim 1, wherein at least one of the deflecting mirrors is attached to a cover closing an orifice of the casings.

3. The microfilm reader as set forth in claim 3, wherein the first casing is capable of being attached to the second casing in a first operative position in which the two casings are being horizontally aligned along a horizontal axis and in a second operative position in which the two casings are being vertically aligned along a vertical axis;

and wherein in both operative positions the front sides of both the first casing and of the second casing are oriented in the same direction.