SU138141A1 - Device for simultaneous shooting of multiple stereoscopic images - Google Patents

Description

The known devices for simultaneous shooting of several stereoscopic images using several fixed shooting lenses are not suitable for photographing moving objects due to the occurrence of parallax and strobe effect, which distort images.

The proposed device allows eliminating the indicated disadvantage and at the same time increasing the frame size in comparison with the known devices. This is achieved by using lenses placed in two rows, one apart from the other, commensurate with the pupil diameter of the eye (about 8 mm), and rhombic prisms that align the pupils of lenses in one row. Unlike the known devices, the described device can be used as a stereoscopic projector. For this purpose, its rear plate is made in the form of a transparent plate with small condensers, the optical centers of which are combined with the stereoscopic axes, and a common condenser is installed between the plate and the light source.

FIG. 1 shows schematically in two projections the placement of lenses and rhombic prisms in the device; in fig. 2-scheme of the shooting lens; in fig. 3-diagram of the device when used as a stereoscopic projector.

The device contains several fixed removable Oi, 0-1 ... Os lenses, which are placed in two rows with a distance between each lens, commensurate with the pupil diameter of the eye, l. e. about 7-8 mm. Rhombic prisms are installed in front of the lenses, which line up the pupils of the Oi, Oi ... OB lenses in one row, thus reproducing the “line of sight, and not a row of points. Taka

No. 138141 --- 2 The optical scheme ensures the perception of the stereo effect from a wide stereoscopic zone with a smooth transition from one elementary zone to another, creates the necessary freedom for the viewer and increases the frame size.

Flat-convex lenses with an aperture diaphragm protruding forward are used as shooting lenses, providing small aberrations for oblique light beams. In order to eliminate the need to manufacture a second similar apparatus for the projection of captured images in compliance with extremely high accuracy, the described device provides the ability to quickly transform it from a film set into a projection device. In this case, the back bar of the device is made in the form of a transparent plate with small condenser lenses /. The optical centers of these lenses are located on the continuation of the stereoscopic axes 2. Before the lenses 1, in close proximity to them, there is a common condenser 3, in the conjugate focus of which the light source 4 is placed.

This lighting system eliminates the need to display each frame with its light source and greatly simplifies the entire structure of the device.

Subject invention

Claims (2)

1. A device for simultaneous shooting of several stereoscopic images containing several fixed shooting lenses, characterized in that, in order to eliminate parallax and strobe effect, as well as to increase the size of frames, it has used lenses placed in two rows, at distances one from the other, commensurate with the diameter of the pupil of the eye (about 8 mm), and rhombic prisms lining the pupils of the lenses in the same way. 2. The device according to claim 1, characterized in that, in order to use it as a stereoscopic projector, the rear bar is made with a transparent plate with small capacitors, whose optical centers are aligned with the stereoscopic axes, and between the plate and the light source a common condenser is installed. L1 lh