SU31655A1 - Instrument for measuring the reflectance of surfaces with diffuse or mixed reflection - Google Patents
Instrument for measuring the reflectance of surfaces with diffuse or mixed reflectionInfo
- Publication number
- SU31655A1 SU31655A1 SU112605A SU112605A SU31655A1 SU 31655 A1 SU31655 A1 SU 31655A1 SU 112605 A SU112605 A SU 112605A SU 112605 A SU112605 A SU 112605A SU 31655 A1 SU31655 A1 SU 31655A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- measuring
- ball
- diffuse
- instrument
- tube
- Prior art date
Links
- 239000003973 paint Substances 0.000 claims description 3
- 238000011835 investigation Methods 0.000 claims 1
- 238000012986 modification Methods 0.000 claims 1
- 230000004048 modification Effects 0.000 claims 1
- 230000004907 flux Effects 0.000 description 2
- 238000005286 illumination Methods 0.000 description 1
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Description
Изобретение касаетс прибора дл измерени коэфициента отражени поверхностей , обладающих диффузным или смешанным отражением, в виде полого шара, полость которого выкрашена хорошо рассеивающей свет краской и который снабжен отверстием, служащим дл приставлени к исследуемой поверхности .The invention relates to a device for measuring the reflection coefficient of surfaces with diffuse or mixed reflection, in the form of a hollow ball, the cavity of which is painted with a paint that is well diffusing light and which is provided with a hole that serves to attach to the surface of interest.
Предлагаемый прибор снабжен прикрепленной к шару трубкой 1C. осветительной системой и трубкой, при помощи которой прибор надевают на люксметр или фотометр.The proposed device is equipped with a tube 1C attached to the ball. lighting system and a tube with which the device is put on a luxmeter or photometer.
Существующие приборы дл измерени полного коэфициента отражени (рефлектометр Тэйлора и подобные ему) громоздки и требуют изготовлени специальных образцов изучаемых поверхностей . В очень же многих практических случа х требуетс измер ть полный коэфициент отражени пр мо на рабочей поверхности. В частности, это необходимо дл осветительных арматур, киноэкранов и т. п.Existing instruments for measuring the total reflection coefficient (Taylor reflectometer and the like) are cumbersome and require the preparation of special samples of the surfaces under study. In very many practical cases, it is necessary to measure the total reflection coefficient directly on the working surface. In particular, it is necessary for lighting fixtures, projection screens, etc.
Дл этой цели предлагаетс изображенный в схематическом виде прибор, состо щий из полого шара, отверстие / которого прижимают к измер емой поверхности , при чем система линз 2 и 3 создает пучок света от лампочки-, освещающий , через отверстие /, измер емую поверхность.For this purpose, a device is shown schematically, consisting of a hollow sphere, the opening of which is pressed against the measured surface, and the system of lenses 2 and 3 creates a beam of light from the bulb, illuminating through the opening / measured surface.
Шар вь1кращён изнутри хорошо рассеивающей краской, и отраженный образцом световой поток создает на стенках шара равномерную освещенность. Трубка 5 надеваетс на люксметр или на любой иной фотометр и фотометром, производитс измерение ркости стенок шара, котора пропорциональна отраженному потоку. Градуировка прибора производитс по эталонным пластинкам, коэфициент отражени которых известен.The ball is erased from the inside with a well-diffusing paint, and the light flux reflected by the sample creates a uniform illumination on the walls of the ball. The tube 5 is put on a luxmeter or on any other photometer and a photometer, measuring the brightness of the walls of the ball, which is proportional to the reflected flow. The instrument is calibrated against reference plates, the reflection coefficient of which is known.
Прибор может быть видоизменен и дл измерени абсолютного коэфициента отражени . Дл этого трубка осветител делаетс на шарнире, чтобы пучок можно было направл ть на стенку шара дл измерени падающего потока.The device can also be modified to measure the absolute reflection coefficient. For this, the illuminator tube is mounted on a hinge so that the beam can be directed to the wall of the ball to measure the incident flux.
Прибор может надеватьс на люксметр (диаметр шара 5 см, длина осветител 15 см}.The device can be put on a luxmeter (the ball diameter is 5 cm, the length of the illuminator is 15 cm).
Предлагаемый прибор предназначен также дл измерени коэфициента отражени киноэкранов.The proposed device is also intended to measure the reflection coefficient of projection screens.
Предмет изобретени .The subject matter of the invention.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU112605A SU31655A1 (en) | 1932-07-14 | 1932-07-14 | Instrument for measuring the reflectance of surfaces with diffuse or mixed reflection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU112605A SU31655A1 (en) | 1932-07-14 | 1932-07-14 | Instrument for measuring the reflectance of surfaces with diffuse or mixed reflection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU31655A1 true SU31655A1 (en) | 1933-08-31 |
Family
ID=48348957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU112605A SU31655A1 (en) | 1932-07-14 | 1932-07-14 | Instrument for measuring the reflectance of surfaces with diffuse or mixed reflection |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU31655A1 (en) |
-
1932
- 1932-07-14 SU SU112605A patent/SU31655A1/en active
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