SU920620A1 - Editing/projection device - Google Patents

Description

(5) INSTALLATION AND PROJECTION DEVICE

This invention relates to optical projection devices. A montage-projection device for composing a composite portrait by combining separate fragments of an image made on transparencies into a single image, a portrait of a joint venture is known. . The closest technical solution to the proposed one is an assembly-projection device containing an illumination system and a number of slits C2. However, such a device with six overlap films mechanically stacked on each other is characterized by the difficulty of obtaining images with the same frequency simultaneously from all transparencies (with a standard film thickness t 0.15 WM, the total film depth on the optical axis in the film channel reaches 0.9 mm) that does not provide the necessary image quality due to insufficient depth of field of the lens. The purpose of the image is to improve the image quality. This goal is achieved by inserting plane-parallel fiber-optic plates with regular stacking of fibers parallel to the optical axis, the plates being installed one behind the other at intervals to accommodate transparent media of image fragments. The drawing shows the device, a general view. The device contains a light source 1, an illumination system 2, transparencies 3-8, and plane-parallel fiber-optic plates 9-1 installed one behind the other with a fiber stacking that is parallel and parallel to the optical axis. Between the fiber plates there is a gap t t of the diaositive + t-2, where tj is 0.1 mm (for the free exhibition of the slide).

The light source 1 through the illuminating system 2 illuminates the transparency 3, the image with the transparency 3 by the fiber plate 9 is transferred to the plane of the transparency A and the superimposed images from the transparency 3 and it by the fiber plate 10 are transmitted to the plane of the transparency 5, etc. A composite image is also formed by overlaying fragments of slits 5 6 and 8 with plates 11 - 1. As a result, at the output end 15. of the last plate 1t (or the n-th plate) we get a composite sharp image (for example, a portrait) made up of on n transparencies (for example, nose, eyes, mouth, oval, hairstyle, ears, mustache, beard, etc.) “With the help of the selection of the corresponding fragments and their mutual exhibition due to the movement of .diapositives vertically and horizontally and some turning in plate planes (n of the perpendicular optical axis), the required composite image (portrait) is mounted. The composite image (portrait) obtained at the output end 15 of the last fiber plate Vk (p-th plate) can be viewed through a magnifying glass, photographed by contact on the photosensitive material located in the plane 15, transmitted to a video transmitter or using a lens project on the screen and Tod, i.e. transmit for viewing and breeding by any known means. For better image quality after composing

composite portrait plates and transparencies at the same time or sequentially can be pressed against the last, output fiber plate.

The device is intended for use in forensic science in the preparation of a composite portrait of a person’s face based on the testimony of witnesses. Other applications are possible, such as restoring a portrait on the skull, in design and other cases where it is required.

compose separate images into a common composite image. The device allows to improve image quality and to obtain a single image with simultaneous sharpness.

from all slides.

Claims (2)

1. US patent fP 2488955, cl. 353-35, published. . 2.US Patent ff 3 38702, CL ... 353-35, published. 1969 (prototype). 3 IS ii iz 13 Of IS s    , J r 5