Appendix; Principles Of Measurement; Precautions For Safe Use Of The Lighting Device (Lamp House) - Olympus USPM-RU-W Series Operation Manual

Appendix

Principles of measurement

How to calculate spectral reflectance (spectral transmittance) with the product is described
below.
The product measures the strength of spectral reflectance of the reference, whose
reflectance (transmittance) is known (Ireference (λ)) and that of the sample to be measured,
whose reflectance is unknown (Isample (λ)). Based on the two spectral reflectance values,
use the following formula to calculate the reflectance of the sample under measurement.
Therefore, the measurement value output from the product is not an absolute value but a
relative value against the reference sample.
The reference samples provided as an accessory with the product are composed of
S-BSL7 glass made by OHARA, GmbH.

Precautions for safe use of the lighting device (lamp house)

Though heavily dependent on the usage conditions (ambient temperature and humidity,
supply voltage, period of lighting, etc.), the useful life of the lighting device (lamp house) *
assumes either short one of for approximately eight years In the case of the use of
approximately eight hours a day or approximately 20,000 hours .
*The above statement does not guarantee freedom from failures or repair at no
during the service life.
*Depending on the usage conditions, there is a possibility of aging degradation in a shorter
period.
Inspect the lamp house according to Appendix: Checklist for inspection of the lighting
device (lamp house) until the lamp house reaches the end of its useful life. Should any
unexpected incident occur (e.g., smoke) during use, turn off the power immediately and
contact the sales representative where you purchased the unit or our sales department.
Regular inspection is recommended, in order to achieve safe use and reduce downtime.
PV8344F4E013
I
sample ( )
R
( )
I
reference ( )
R
: Measured value of the spectral reflectance of the sample
( )
I
: Strength of spectral reflectance of the measured sample
sample
( )
I
reference ( )
R
: Theoretical value of the spectral reflectance of the reference
theory
( )
I
background ( )
R
theory ( )
I
background ( )
: Strength of spectral reflectance of the reference
I
background
47
: Strength of background
( )
charge