In 1879, Edison of the United States succeeded in extending the life of incandescent bulbs to more than 40 hours. In 1910, the Couli Hall in the United States used tungsten wire as a filament to invent a tungsten filament bulb. In 1913, the American Lanmir invented the gas-filled tungsten filament bulb by filling the glass with gas to prevent the filament from evaporating. In 1925, Japan’s unbreakable orange three invented the inner wall matte bulb. In 1932, Japan’s Miura Shunichi invented a double-helical tungsten filament bulb. Since then, mankind has never stopped pursuing light. Soon people discovered that human beings not only need indoors. To illuminate to meet your own daily life, whenever night falls, in order to extend the outdoor activities, lighting is also required, so that the street lights are born. With the civilization and progress of mankind, it was discovered that in the 1970s, people found that the wall-mounted installation of street lamps not only occupied space resources, but also that the lawn lights hanging on the top of the head not only made people feel depressed, but also had potential safety hazards and could not meet certain space. Installation and lighting requirements So the lawn lamp was born. The lawn lamp was developed in the 1990s and is widely used in urban slow lanes, narrow lanes, residential areas, tourist attractions, parks, plazas, private gardens, courtyard corridors and other public places. The roads are used for road lighting and improvement. The safety of people traveling at night is used to increase the time for people to spend outdoor activities and improve the safety of life and property. It can also change people's moods, improve people's moods, and change people's perceptions, creating a palette of light and dark nights. During the day, the lawn lights can be used to embellish the city scenery, nights, lawn lamps can provide the necessary lighting and living convenience, increase the residents' sense of security, and highlight the city's highlights, interpretation of the bright style, so that it has developed into a mature industrial chain. China star optics can provide customers with a variety of replicated grating products such as diffraction gratings, reflective gratings,holographic gratings,concave gratings etc. to meet different needs. Maximum ruled area is up to 300x300mm2 for plane ruled diffraction gratings. For replicated diffraction and transmission gratings the ruling density can be from 20 grooves per millimeter to 2400 grooves per millimeter, wavelength from 0.2 micron to 25 microns.
They are widely used for applications in optical communications,biotechnology, colorimetry,chromatography,and medical instrumentation.
Handling Gratings: Gratings require special handling, making them prone to fingerprints and aerosols. Gratings should only be handled by the edges.
Holographic gratings: Holographic Grating,Holographic Blazed Grating,Holographic Concave Grating,Aberration-Corrected Holographic Grating China Star Optics Technology Co.,Ltd. , https://www.realpoooptics.com
Specifications:
Ruled area: <=70 * 70mm
Wavelength range: 0.2-0.8um
Grooves per mm: 1,200 to 3,600L/mm
Diffraction: >70%
Ruled gratings:
Specifications:
Ruled area: <=70 * 70mm
Wavelength range: 0.2-15um
Grooves per mm: 50 to 2,400L/mm
Diffraction: >70%
Concave gratings:
Specifications:
Ruled area: <=70 * 70mm
Wavelength range: 200 to 900um
Grooves per mm: 490 to 1,200L/mm
Diffraction: >70%