Integrating Sphere Spectral Transmittance Measurement Device "DOT Series"
DOT-3C／DOT-41／DOT-41uv-vis
Supports ultra-low transmittance with a 10x sensitivity mechanism! Polarization degree measurement is also possible.
The "DOT Series" is a measurement device that stably measures the transmittance and outputs color values for samples that diffuse light, including not only transparent samples but also translucent films and sheets, as well as samples with curvature, such as eyeglass lenses. In recent years, the technology for developing materials for eyeglass lenses and polarizing films for liquid crystal displays has rapidly improved, leading to a demand for highly accurate measurement instruments to verify their performance. This series employs a method that uses a large integrating sphere for illumination, projecting strong and uniform diffused light onto the sample. By utilizing an efficient concave diffraction grating in the spectrometer, stable measurements can be achieved even for samples with low transmittance, demonstrating its effectiveness in inspecting polarizing films. 【Product Lineup】 ■ DOT-3C ■ DOT-41 ■ DOT-41/uv-vis *For more details, please refer to the PDF document or feel free to contact us.
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basic information
【Common Specifications (Partial)】 ■ Color measurement method: Double beam method ■ Geometric conditions for illumination and detection: White light diffused illumination using a φ150mm integrating sphere / 0° transmission detection (JISZ8722:2009 5.4.1c) geometric condition g (symbol di: 0°) ■ Illuminated area: φ40mm ■ Maximum measurable sample thickness: 30mm ■ Effective wavelength range: Approximately 10nm ■ Spectral element: Concave diffraction grating *For more details, please refer to the PDF document or feel free to contact us.
Price information
Prices vary depending on the model and specifications, so please feel free to contact us.
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Applications/Examples of results
【Applications】 ● Transmission color measurement of lenses (glasses, cameras, etc.) ● Color measurement of transparent and translucent objects such as glass and resin ● Transmission color measurement of automotive lenses ● Measurement of transmittance and polarization degree of polarizing films *For more details, please refer to the PDF document or feel free to contact us.
Line up（3）
| Model number | overview |
|---|---|
| DOT-3C | This is the most standard model. |
| DOT-41 | This is a higher model that covers the measurement wavelength range of the visible spectrum (380nm to 780nm) and allows for arbitrary selection of measurement wavelength intervals of 10, 5, or 1nm. |
| DOT-41uv-vis | This is the top model that further improves upon the DOT-41, enabling measurements in the ultraviolet range from 280nm to 780nm. |
catalog（2）
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Company information
In 1947, a color research group was established in a corner of Tsukishima, Tokyo, which later became the Color Division of Japan Electronic Measuring Instruments Co., Ltd. The group focused primarily on the production of standard color samples and research and guidance on color adjustment. In November 1956, it became independent and was established as Murakami Color Technology Research Institute, Inc. Since its founding, our company has made the production of measuring instruments related to visual information processing, including "color and gloss," the production of color samples, and the promotion of color management the pillars of our business, and we have been active as a pioneer in the industry. Our market share is extremely high. We will continue to make further efforts for the development of color science and the creation of a prosperous society, and we hope to be of service to everyone.