FIELD: optics; measurement technology. SUBSTANCE: device has photodetector and diaphragm mounted in front of photoreceiver. Diaphragm is made in form of shutter with holes. Shutter is made in form of plate and mounted for reciprocal motion. Holes in diaphragm are located at different heights. Shutter slides along guide in motionless frame. EFFECT: improved precision of measurement. 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DEVICE FOR PHOTOMETRIC TESTING OF OPTICAL BEAMS | 1992 |
|
RU2065583C1 |
| DEVICE FOR MEASURING INTENSITY IN LIGHT BEAMS | 1992 |
|
RU2065581C1 |
| PHOTOMETRIC DEVICE | 1992 |
|
RU2065584C1 |
| METHOD OF MANUFACTURE OF POROUS DIAPHRAGMS | 1992 |
|
RU2104759C1 |
| APPARATUS FOR INVESTIGATING OPTIC INHOMOGENEITIES | 1991 |
|
RU2018111C1 |
| METHOD OF MAKING MICROPOROUS MEMBRANES | 1992 |
|
RU2060805C1 |
| METHOD FOR MANUFACTURE OF MEMBRANES FOR FILTRATION | 1992 |
|
RU2061535C1 |
| METHOD FOR MANUFACTURE OF MEMBRANE SIEVES | 1992 |
|
RU2061534C1 |
| METHOD OF MANUFACTURE OF MASKS BASED ON POLYMER FILMS | 1992 |
|
RU2091992C1 |
| METHOD FOR MANUFACTURE OF MICROPOROUS MEMBRANES | 1992 |
|
RU2061533C1 |
