Product features:

At present, the quantitative measurement of stress and birefringence is mainly carried out by naked eye observation using the Seine et al. instrument.

The Senamon method is a detection method that quantitatively detects the optical path difference by rotating the analyzer and changing the measurement area from the brightest to the darkest state. However, as it is a visual observation type, there may be deviations in the determination of brightness depending on the measurement environment and the measurer. The accuracy of semi-automatic measurement has improved compared to visual observation, but the measurement area is limited to a specific part of the image. The Cenamon method cannot detect the slow axis direction and can only rely on the photosensitive color method for inference. In addition, when observing the anime distribution, it is necessary to draw images for the results of multiple measurements over a long period of time.

This device is used to place samples on a circular polarizing plate composed of a linear polarizing plate and a 1/4 wavelength plate, allowing for direct measurement. Therefore, there is no difference between proficient and beginners, and both can easily perform quantitative measurements of optical path difference and slow axis direction. In addition, not only can specific parts be measured, but each pixel unit can also be measured using the built-in CCD camera. Therefore, the optical path difference and slow axis direction can be displayed as 2D images on the monitor, and the distribution status can also be easily understood.

Connecting to a computer makes it easy to record measurement data and observation images.

The light source uses high brightness LED lights, which have a long lifespan and are energy-saving, thus reducing the time and operating costs of replacing the light source.

Technical parameters:

Appearance dimensions (main body): W280 x D380 x H500mm

Weight (main body): 15kg

Dimensions of circular polarizer: W200 x D200

Measuring spatial height: 0-130mm

Detection method: Rotating analyzer method

Set wavelength: 590nm

Repeated measurement accuracy (standard deviation: 1nm)

Measurement range: 175x175mm

Effective pixels: 1100 x 1100

Light source: High intensity LED

Power supply: AC100~240V 50/60Hz 0.35A