The Model ART-25 has been developed to measures the spectral transmittance and reflectance of optical elements such as lenses, sheet glass, filters, reflecting mirrors, prisms and so on.
The incident angle to the sample at the time of reflectance measurement is variable at an arbitrary anble, and it can be set up to the minimum incident angle of 15°（ optical axis angle 30° ）at reflectance measurement. By mounting a polarozation measurement mechanism, our unique mirror optical system enables the user to perform direct measurement of 45° N polarized light as well as P polarized light and S polarized light measurement.
Catalog（PDF） Download
ART-25 Optical Elements Measuring Device 〉
A4／2pages／616KB
Features
- The standard transmittance measurement range is from 350 to 850nm. And optionally it can be extended to 220～2000nm
- Measurement repeatabilty within±0.2％ is achieved with our proproetary double beam optical system which cancels variations of light source and detector.
- It also supports transmittance measurement of the prism as an option, and can also measure transmittanbe of any prism such as a single lens reflex pentaprism or a video camera BGR decomposition prism.
- In addition to P polarization and S polarization measurement, direct measurement of 45°N polarized light is possible.
Interference filter measurement data (example)
Specifications
| Wavelength range | 350～850nm（ option: 220～2000nm ） |
| Measurement mode | Transmittance 0～100（％T） |
| Measurement precision | Within ±0.2％ |
| Measurement method | Back ground measurement method |
| Correction method | Double beam 2 system corrections |
| Wavelength purity | Approx. 2nm |
| Wavelength accuracy | ±0.1nｍ |
| Irradiation beam size | Approx. 5×5mm |
| Polarization angle | 0° 45° 90°（ to be set by software ） |
| Light source | Halogen lamp 150Ｗ |
| Integrating sphere | Φ100ｍｍ |
| Detector | Photomultiplier |
Standard configurations
- Halogen lamp 150W
- Halogen lamp power supply ( for 150W )
- Halogen lamp holder ( for 150W )
- Light converging optical system
- Monochromator（M25-T）
- Grating 1200 grooves /500nm blaze
- Wavelength driving mechanism
- Auto shutter mechanism
- Auto high order light cut filter mechanism
- High order light cut filters
- Double beam optical system
- Polarizer (Glan-Thompson)
- Polarizer auto-rotation mechanism
- Intergrating sphere Φ100mm
- Photomultiplier
- Sample stage
- JQA filters for calibration ( 4 types, with case )
- Amp system for high precision measurement
- Interface unit
- Large sample chamber
- Frame
- PC
- Dedicated software
- Instruction manual
Option
- D2 lamp unit (lamp, power supply, lamp holder )
- Xenon lamp unit ( lamp, power supply, lamp holder )
- Two lamps light converging optical system
- Different type of gratings
- Different type of high order light cut filters
- Sillicon photon diode (for optional long wavelength expansion )
- Integrating sphere moving mechanism
- Various type of sample stage
Installation environment
- Main unit ：Approx. W2100×Ｄ900×H1750mm
