Plane ruled gratings are characterized by a superior efficiency at their design wavelength compared with holographic gratings. Plane Ruled gratings comprise the majority of diffraction gratings used in spectroscopic instrumentation and are especially useful in systems requiring high resolution. 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 300 x 300 mm 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. Plane Ruled Grating,Plane Ruled Diffraction Grating,Plane Reflection Grating,Plane Ruled Reflective Grating China Star Optics Technology Co.,Ltd. , https://www.csoptlens.com
Holographic gratings:
Specifications:
Ruled area: <=70 * 70mmÂ
Wavelength range: 0.2-0.8umÂ
Grooves per mm: 1,200 to 3,600L/mm
Diffraction: >70%Â
Ruled gratings:
Specifications:
Ruled area: <=70 * 70mmÂ
Wavelength range: 0.2-15umÂ
Grooves per mm: 50 to 2,400L/mmÂ
Diffraction: >70%
Concave gratings:
Specifications:
Ruled area: <=70 * 70mmÂ
Wavelength range: 200 to 900umÂ
Grooves per mm: 490 to 1,200L/mmÂ
Diffraction: >70%
When purchasing curtains, many people focus primarily on the aesthetic appeal. However, there are several important factors that should not be overlooked. Here are some key considerations to keep in mind:
**Noise Reduction**: Studies show that continuous noise levels above 30 decibels can disrupt sleep and cause stress. To combat this, opt for curtains with sound-absorbing properties, such as those made from flocking, cotton, or linen. Thicker curtains tend to offer better noise reduction, with high-quality options capable of cutting external noise by up to 10-20%.
**Light Control**: For a restful daytime nap, especially in the bedroom, it's wise to choose blackout curtains made from cotton or flocked fabric. In areas like restaurants or offices, adjustable blinds are more practical for managing light levels.
**Thermal Insulation**: During colder months, thermal insulation becomes essential. Flocked curtains are thick and provide excellent warmth. According to research by Japanese interior designers, deep red is the warmest color, making it ideal for winter use.
**Mood Enhancement**: The color of your curtains can significantly impact your mood. Too dark a shade may feel oppressive, while overly bright colors can cause visual fatigue. For a calming effect, consider soft tones like light green or blue, which promote relaxation. Those who suffer from insomnia might benefit from combining red and black in their curtain design to encourage better sleep.
**Safety Considerations**: Avoid cheap curtains that may be flammable. Quality curtains are often treated for fire resistance, ensuring the safety of your family.
**Material Options**: Common curtain materials include cotton, hemp, yarn, satin, flocking, bamboo, and rayon. Cotton and hemp are easy to clean and ideal for bedrooms. Gauze curtains add a decorative touch and enhance room depth, making them great for living rooms and balconies. Satin and velvet curtains offer a luxurious feel, with good shading and soundproofing, though they come at a higher price. Bamboo curtains are durable, moisture-resistant, and perfect for living spaces. Man-made fiber curtains are easy to clean and offer good sun protection. Roller blinds are currently popular, so check the blades for smoothness and ensure the curtain operates smoothly when pulled.
**Environmental Impact**: Some wooden or synthetic curtains may use adhesives that release harmful chemicals. If you have children, elderly members, or pregnant women in the household, choose eco-friendly options carefully to maintain indoor air quality.
By considering these factors, you can make a more informed decision when selecting curtains that not only look good but also serve functional and health-related purposes.