It is possible to optically quantify the sensual sensations felt from the appearance and texture of an object's surface, such as psychological luster, luxury, and depth!
The "GP Series" is a three-dimensional goniophotometer that can optically capture information equivalent to the resolution of the human eye with simple operation. The "GP-5" can measure the distribution of reflected light from surfaces such as metal, painted surfaces, plastic, printed materials, paper, and textiles, as well as the distribution of transmitted light through glass, liquids, and cellophane, and it is also capable of measuring turbidity. Additionally, the "GP-700" allows for independent variation of the incident angle and receiving angle, enabling the analysis of the intensity distribution of reflected and transmitted light when light is directed at a material, thereby extracting the optical information unique to that material. It is an essential instrument for the study of optical appearance. 【Features】 ● Detection of reflected or transmitted light intensity distribution with a detection angle of 0.1° step and digital output (capable of three-dimensional measurement) ● Measurement at any wavelength is possible with an optional interference filter device ● Easy operation as it is controlled, calculated, and output via a computer ● Adjustable light beam aperture and receiving angle allow for the setting of measurement conditions according to purpose (fixed for GP-5 model) ● A wide variety of optical components and sample stages are available *For more details, please refer to the PDF materials or feel free to contact us. *The GP-200 model was discontinued for sale at the end of February 2022.
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basic information
**Overview** All objects undergo transmission, absorption, and scattering of light. By analyzing the transmission and reflection light distribution of an object, we can understand its unique characteristics. Research on the textures and qualities that characterize the surface of an object, derived from these properties, is fundamental and extremely important for creating high-value-added products and textured goods. The meanings of the terms related to texture and quality in visual evaluation vary depending on the optical properties of the observed object and are expressed as follows: ● Paint-related: fullness, depth, glossiness, lightness, etc. ● Paper and printing-related: sharkskin feel, tactile sensation, flicker, texture, softness, etc. ● Fiber-related: texture, psychological glossiness, luxury feel, texture, etc. ● Hair-related: texture from waves, softness, glossiness, etc. ● Resin-related: transparency, milky appearance, softness, etc.
Price information
The price varies depending on the model and the availability of options, so please feel free to contact us.
Delivery Time
※The delivery time may vary depending on the model and the availability of options, so please feel free to contact us.
Applications/Examples of results
【Applications】 ● Understanding the light transmission characteristics of plastics, glass, etc. ● Measuring the roughness of metals, painted surfaces, etc. using light probes ● Understanding the optical properties of magnetic paint coatings ● Understanding the optical properties of paper ● Pursuing the optical appearance of natural and artificial materials ● Surface evaluation of high-gloss mirror-like materials ● Pursuing the optical appearance of fibers and textiles ● Transmission characteristics of diffusion plates, prism sheets, and polarizers for liquid crystal backlights *For more details, please refer to the PDF document or feel free to contact us.
Detailed information
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Conceptual diagrams of measurements using a goniophotometer: Diagrams for reflection measurements and transmission measurements in GP.
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Optional sample stage (part) This is part of the optional sample stages available for the GP series.
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Measurement Example 1 in GP: "Evaluation Method for the Psychological Gloss of Fibers" and "Evaluation Method for the Texture of Coatings and Lacquers."
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Measurement Example 2 in GP: "Optical Property Evaluation of Brightness Enhancement Prism Sheets" and "Glare Evaluation Method for Liquid Crystal Display Screens"
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Example 3 of measurements in GP: "Evaluation method for the psychological glossiness of hair" and "Soft focus evaluation method for foundation powder."
Line up（2）
| Model number | overview |
|---|---|
| GP-5 | This model has specifications that are somewhat limited, making the device size compact and keeping the price down. |
| GP-700 | This is the top model in the GP series. |
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 Nihon Denshi Sokki Co., Ltd., focusing mainly 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 creation of color samples, and the promotion of color management the pillars of its business, operating 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.