FIELD: optical instrumentation. SUBSTANCE: optical-electron device includes transmission and reception channels installed in parallel, dead-end mirror and beam splitter coming in the form of semitransparent plate, integrating reception and transmission channels, protective glass mounted at angle with reference to optical axis, radiation absorber installed in path of radiation of transmission channel reflected from semi-transparent plate and made in the form of neutral light filter tilted to optical axis and element placed behind it and fabricated from material with high absorption factor. EFFECT: increased detection range of system of secretive video observation, improved quality of recording thanks to reduced stray radiation of illumination. 2 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| OPTICAL ELECTRONIC DEVICE FOR REMOTE DETECTION OF CONCEALED VIDEO SURVEILLANCE SYSTEMS | 2006 |
|
RU2308746C1 |
| CAT'S EYE INDEX METER FOR OPTOELECTRONIC DEVICES | 2002 |
|
RU2202814C1 |
| FACILITY FOR REMOTE DETECTION OF OPTICAL LIGHT-RETURNING SYSTEMS | 2003 |
|
RU2230346C1 |
| METHOD FOR NIGHT AND/OR DAY OBSERVATION OF A REMOTE OBJECT WITH SYNCHRONOUS PHASE MANIPULATION BY LASER ILLUMINATION PULSES AND DEVICE FOR REALIZATION OF SAID METHOD | 2004 |
|
RU2269804C1 |
| SINGLE-CHANNEL DEVICE FOR DETECTING REFLECTIVE OPTICAL SYSTEMS AND DETERMINING RANGE TO SAID SYSTEMS | 2008 |
|
RU2400770C1 |
| METHOD FOR DETECTING OPTICAL AND OPTO-ELECTRONIC DEVICES | 2021 |
|
RU2774945C1 |
| OPTIC SMOKE SENSOR | 2015 |
|
RU2613274C2 |
| DEVICE FOR TAKING MEASUREMENTS OF LIGHT SCATTERING CHARACTERISTICS OF OPTOELECTRONIC INSTRUMENTS | 2007 |
|
RU2329475C1 |
| OBSERVATION DEVICE-SIGHT WITH BUILT-IN PASSIVE RANGEFINDER | 2021 |
|
RU2785957C2 |
| INSTRUMENT FOR DAYTIME AND NIGHT OBSERVATION AND AIMING | 2006 |
|
RU2310219C1 |
