Description

Resistance glasses use patent-pending Rendition lens technology and are the world's latest in achieving “perfect color” in grow rooms with HPS lamps. The Resistance Plus have an additional silver coating for larger and brighter grow rooms, with lighting greater than 10.000 watts. They also work very well as blue lens sunglasses and relax your eyes.

The lenses are made from the highest quality German mineral glass, which provides maximum sharpness.

HPS LAMPS

High-pressure sodium (HPS) lamps have long been a cost-effective solution for some industrial applications such as lighting warehouses and grow rooms, but they cause visual problems for people working in that environment. We discuss these issues in detail in the ocular physiology section. But in general, HPS lamps result in a significant decrease in color perception and the ability to focus on shapes and movements. The “strobe” effect caused by the high-frequency cyclic variation in power from the ballast to the HPS lamp generates a similar high-frequency variation in light intensity, which also has a negative effect on the eyes' ability to function relaxed and efficiently with this type of lights.

HPS lamps create and emit a large amount of light. Regular electrical excitation and electron decay in sodium atoms generate most of the light emission at a specific “yellow” wavelength of about 590 nanometers. This wavelength is a very suitable energy source for photosynthesis and plant growth.

However, this same concentration of yellow light causes us to not see properly. Humans see best in natural sunlight or “balanced white light.” White light, like natural light, covers the entire visible spectrum from 390 to 750 nm. This broad spectrum of light allows us to see colors naturally and easily recognize shapes and movements. The yellow light from HPS lamps saturates our eyes and prevents us from recognizing other colors.

The eyes also need a certain ratio of blue light (approximately 505 nm) and yellow light (approximately 555 nm) to recognize shapes and detect movement. HPS lamps provide a certain amount of blue light, but it is very little compared to the predominant yellow light, so they considerably reduce our ability to focus. All of this is explained in greater detail in the “rods” and “cones” section.

COLOR, SHARPNESS, PROTECTION

Although others try to imitate us, they fall short: Method Seven has developed the world's first cultivation glasses for HPS. These glasses are made with German mineral glass, using the patent-pending Rendition Color Perfect technology for HPS, or with high-quality synthetic lenses developed jointly with Carl Zeiss (world leader in the production of premium lenses). Only Method Seven offers glasses of unparalleled style and quality and meets your needs for color, sharpness and protection!

www.methodseven.com