During the day we can see colorful colors, but at night all objects turn black. Relationship between object color presentation and spectrophotometer. 1. Different objects will have different colors, so the color must be related to the attributes of the object itself. 2. In different light environments, the same object will present different colors, such as the apple below. The color is different i...
Plant lighting fixtures are a type of lamps based on application objects. Its irradiation objects are plants, and they are expected to have an expected physiological response effect. Light is both energy source and signal source for plants. As an energy source, light provides energy for the photosynthesis of the plant, and provides heat to plants; as a signal source, light affects the optical, lig...
Precautions in the use of colorimeter 1. A customer provided a set of color coordinates to the manufacturer, but no standard sample was provided. In this case, it must be clear which color space the color coordinates provided by the customer were measured in, as well as the lighting conditions and the type of light source. The measured values vary greatly in different color coordinate spaces and a...
The test principle of the high and low temperature chamber has the tendency to simulate and simulate the temperature change in the natural environment. It is mainly used for adaptability test of raw data such as batteries, electricians, electronics and electronic equipment in high temperature and ultra-low temperature integrated natural environment. In the process of use, the equipment is replaced...
Gloss meters are used extensively for the purpose of measuring gloss units on painted, coated, and glossy surfaces, often at reflecting angles of 20 degrees, 60 degrees, and 85 degrees. The gloss meter is a multipurpose instrument that may be used on smooth surfaces, whether they have been treated or not, including stone, wood, laminates, and floors. The use of a gloss meter confers the following ...
The scientific name of the dust proof chamber is sand-dust test machine, dust-resistant test machine, waterproof test chamber and other different names. It is used for IP dust-proof test of products. Its scope of use includes but is not limited to electrical appliances, lighting fixtures, instruments, intelligent robots, camera equipment, vacuum cleaners, sweepers and other products. Working princ...
PLUGS AND SOCKET-OUTLETS FOR HOUSEHOLD AND SIMILAR PURPOSES Part 1:Scope This part of IEC 60884 applies to plugs and fixed or portable socket-outlets for a.c. only, with or without earthing contact, with a rated voltage greater than 50 V but not exceeding 440 V and a rated current not exceeding 32 A, intended for household and similar purposes, either indoors or outdoors. The current is limited t...
IP (Ingress Protection) protection grade system is drafted by IEC (INTERNATIONAL ELECTROTECHNICAL COMMISSION), which classifies electrical appliances according to their dust-proof and moisture-proof characteristics. The IP protection level is composed of two numbers. The first number represents the level of dust prevention and intrusion prevention of electrical appliances (the external objects, in...
In artificial color matching, the color matching of colored light is different from that of paint. The direct addition of colored light is additive color mixing. The three primary colors of red, yellow and blue are superimposed. At this time, the uncertainty of human eye observation can be reduced by measuring with a Chroma Meter. By adjusting the proportion of each color light, you can adjust and...
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