SU423390A1 - Device for visualizing infrared range image - Google Patents

Description

one

The invention relates to a technique for converting signals obtained by irradiating three-dimensional objects with stimulated radiation into infrared radiation. It can be used in cases when visualization is required for direct observation, as well as in large-scale and non-scale modeling and processing of information obtained in IC radioson of coherent optics and holography.

The device for imaging images obtained in the mid-wave section of the infrared range, containing an infrared radiation source, a unit for shaping the reference and object paths, an interference pattern transfer unit, an infrared radiation receiver, an image recording unit.

In these devices, the infrared dpanazone information is recorded on an intermediate carrier, which uses thermosetting material. In this case, in order to view the hologram in the optical range, repeated re-recordings with a change in the scale of the interference pattern are required.

The purpose of the invention is to increase the speed and increase the sensitivity of holographic equipment. To achieve the goal, the transfer pattern of the interference pattern is made in the form of a reflective screen and a focusing and scanning optomechanical system.

The drawing shows a proposed device for visualizing infrared images.

The device contains infrared coherent radiation source 1, a unit of the reference and object paths, consisting of collimator 2, beam splitter 3 and a reflector of the reference beam 4, a holographic object 5, an interference pattern transfer unit consisting of a reflecting screen 6 and an input focusing point a scanning mechanical system 7, an infrared radiation receiver 8 with an amplifier 9, and an image registration unit. The latter consists of a source of coherent radiation in the visible range 10, an electro-ononic modulator 11, a focusing 12, and a scanner 13 devices and a recording medium 14.

The interference field of the infrared range, formed according to the scheme of classical holography by nodes 1-5, is reflected evenly in all directions by screen 6. The reflected interference field is scanned line by line by optical-mechanical mechanism

7, while the PC field scattered by each point of the separating screen 6 is sequentially focused by the system 7 to the point where the fixed point receiver of radiant energy is placed 8. The receiver transforms the interference pattern into a temporal sequence of electrical signals, which, after amplification by amplifier 9, as a control voltage to the electro-optical modulator 11.

The brightness-modulated beam of the coherent radiation source of the visible range 10 enters the focusing system 12 and then the output scanning device 13 working synchronously with the input scanning system 7. The device 13 provides the deflection of the beam of the source 10 in a solid angle, the value of which is determined by the image scale conversion, caused by a change in the range of waves. In this case, the modulated beam of the source 10 source is focused by the device 12 onto the plane in which the photoregistration medium 14 is located, along which the device 13 scans, by line-by-line recording of the interference image on the photographic plate.

Claims (1)

Invention Formula An infrared imaging imaging device comprising an infrared coherent radiation source, a reference and subject path formation unit, an interference pattern transfer unit, an infrared radiation receiver with an amplifier, an image recording unit consisting of a coherent visible radiation source, an electro-optical modulator and an output scanning devices that are based on the fact that, in order to improve the speed and sensitivity of the device, the unit is and vyiolnen interference pattern as a reflective screen and the focusing and scanning opto-mechanical system.