SU1315926A1 - High-speed photographic recorder - Google Patents

Abstract

The invention relates to a photograph and allows the device to increase the luminosity of the device by matching the aperture of the input optical unit with the configuration of the light opening of the slit diaphragm. The positive cylindrical lens 3 mounted in front of the slit diaphragm 4 forms an image of a rectangular entrance pupil of an input optical unit that includes an input lens 1 with a rectangular light hole and a collective 2. An intermediate lens 5 together with a flat mirror 6 forms an image of the aperture slit 4 on the arc of the film channel 7, - The safety shutter 8 prevents image overlapping at the turn of the mirror 6. 1 sludge. (L C-h oe sd with tc o

Description

113

This invention relates to high-speed photography,

The purpose of the invention is to increase the luminosity by matching the aperture of the input optical unit with the configuration of the light aperture of the slit diaphragm.

The drawing shows the optical scheme of the proposed photographic recorder.

The photographic recorder contains an input optical unit, generally including an input lens 1 with a rectangular light hole and a cluster 2, a cylindrical lens 3, a time slit 4, an intermediate lens 5, a rotating mirror 6, a film channel 7 with a recording material. scarlet, safety bolt 8,

Photoregistrar works as follows.

The input lens 1 together with the team 2 and the cylindrical lens 3 form an image of the subject (in the plane perpendicular to the drawing plane) on the slit 4, which cuts out the direction of interest to the researcher. Lens 3 in the plane of the drawing forms an image of the rectangular exit pupil of the input optical unit, which almost coincides with the exit pupil of the input lens 1, on the opening of the slit diaphragm 4. At the same time, team 2 builds an image of the exit pupil of lens 1 in the plane perpendicular to the plane of the drawing, near the rim the intermediate lens 5 (or near the rotating mirror 6), the intermediate lens 5 together with the flat mirror 6 form the image of the slit 4 on the arc of the film channel 7. ala slit image 6 is deployed in time. Weak averaging of the image Editor and, Gorna

Compiled C, Shigalovich

Tehred M. Khodanich Proofreader S. Cherni

Order 2357/48 Circulation 420 Subscription

VNSHPI USSR State Committee

for inventions and discoveries 1130.35, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, Proektna st, 4

5926 2

neither in the transverse coordinate parallel to the sweep plane in the proposed scheme does not impair the operational capabilities of the photographic recorder5, since such devices, as a rule, investigate phenomena that have a striped structure — for example, shock wave fronts or frequency spectra of radiation (in the spectrographic mode), The degree of averaging can be adjusted by an additional slit aperture of variable size mounted in front of the cylindrical lens 3,

15

The safety shutter 8 is necessary to prevent overlapping of the image with the following after registration of the revolutions of the mirror 6, 20

Claims (1)

Invention Formula A high-speed photo recorder that contains a sequential input optical unit, a diaphragm with a vertical adjustable slit, an intermediate lens, a rotatable mirror, and a shutter and film channel, characterized in that in order to increase the aperture ratio by matching the aperture of the input optical unit with the shape the aperture slit, it is provided with a positive cylindrical lens mounted in front of the diaphragm, the cylindrical surface of which is parallel to slit aperture, with the object plane the cylindrical lens is aligned with the exit pupil plane of the input optical unit, the entrance pupil of which is made rectangular, and the image plane of the positive cylindrical lens is aligned with the plane of the diaphragm,