|
|
Photometers - General
 For
detailed information see also our new brochure "Photometers"
(PDF, 1.5 MB)
Photometer derives from the Greek photon (φοτον)
= light and is an instrument that measures light.
Optronik's photometers provide a photopically-corrected
(eye response) measurement of the brightness (candle
power), illuminance (in lux), and tristimulus color
coordinates from optical radiation sources.
|
Since 1968 when it constructed one of the worldwide first
digital luxmeters, Optronik has specialized in the design
and manufacture of photopic detectors, photometer systems,
and integrated laboratory solutions for a variety of electro-optical
testing, measurement, and calibration applications: Optronik
is an acknowledged leader in the design and manufacture
of precision photometric equipment.
| Optronik’s proprietary photopic
filters consist of several elements designed to match
the CIE photopic response curve to achieve an f1
to better than 1.5% at all wavelengths (f1
< 1.5 % defines the highest accuracy class L according
to DIN 5032 and CIE No. 69). The sensitivity in the
IR and UV range is reduced to a minimum < 0.1%. The
careful design of the detectors ensures best-of-class
equipment and repeatable measurement results, even for
monochromatic radiation sources. |
|
We offer solutions for measuring following photometric
properties:
Luminous Quantities
| Value |
Symbol |
Formula |
Name |
Unit |
| Luminous flux |
Φ |
Φ = I ⋅ Ω |
Lumen |
[lm] |
|
Luminous intensity
|
I |
I = Φ/Ω |
Candela |
[cd] |
| Luminance |
L |
L = I/A |
Candela per square meter |
[cd/m²] |
| Illuminance |
E |
E = Φ/A |
Lux |
[lx] |
| Retroreflection |
R |
R = I/E |
Candela per lux |
[cd/lx] |
| Luminous color |
X, Y, Z |
|
Chromaticity coordinates |
[1] |
System
Luxmeter / Photometer digilux 9500
Precise photometer according to DIN 5032 and CIE Publication
No. 69 to measure illuminance, intensity and luminous flux
with a display range from 0.1 mlx (optionally 0.01 mlx)
up to 200 klx (optionally 2 Mlx). Fearuring photooptic detectors
class L and A.
digilumen
9500
System
Photometer SMS 10s
Measuring system and control unit for goniophotometer.
Serves to control the goniometer motors and drives and as
photometric acquisition center. Up to three preamplifiers
vv10 can be connected. Measures illuminance, intensity and
luminous flux in several units. Corresponds with DIN 5032,
class L. Different types of detectors available. Equipped
with LCD graphic display. Many implemented special function.
Can be also used as photometer stand alone unit.
Tristimulus
colorimeter fms 10
for analyzing and classifying luminous color in various
fields such as research and development, quality and manufacturing
control.
Luminance
meter lms 20
A laboratory instrument for the measuring luminance of car
license plates (e.g. according to ECE R4) and similar applications.
Photometer
Heads
The quality of Optronik photometer heads represents
the highest level of technology according to DIN5032, CIE
Publication No. 69
|
