Spherical lenses often used for aiming and focusing of monochromatic light source.Plano-Concave Lenses have a negative focal length and is typically used to cause a collimated beam to diverge as in a Galilean type beam expander or Telescope. Because the spherical aberration of thePlano-Concave is negative, it can be used to balance the aberration of other lenses. This lens is widely use in optical display systems, projection optics systems, imaging and laser measureemnt systerms. We supply kinds of Plano-Convex Spherical Lens,plano-concave Spherical Lens,bi-convex spherical lens,bi-concave spherical lens,Meniscus Spherical Lens,special spherical lens,achromatic spherical lens,ball lens,sphere lens etc. Specification of our spherical lens as follow: Plano-Concave Spherical Lens,Optical Plano-Concave Lens,Double-Concave Lens Kit,Simple Double-Concave Lens Kit China Star Optics Technology Co.,Ltd. , https://www.csoptlens.com
*Material: BK7,fused silica,MgF2,BaF2,CaF2,ZnSe,ZnS,Ge or other optical crystals
*Dimension Tolerance +0.0 -- -0.1mmÂ
*Center Thickness +/-0.1mmÂ
*Focal Length Tolerance+/-1%
*Surface Quality:60/40Â
*Surface Figure: lambda/2 at 633nm on plano sideÂ
*Clear Aperture >90%
*Chamfer 0.25mm at 45 degree typicalÂ
*Coating OptionalÂ
In fact, for a home, having a dedicated storage room can be incredibly practical. The main idea is to keep the space functional without unnecessary movement—just meet the needs. For a master bedroom, a large bed is essential, but a well-designed cloakroom is a must for any hostess. It’s even better if there’s a separate study nearby. As wardrobes grow with more clothes, two cabinets may not be enough, and eventually, you end up squeezing items in. During the design phase, it's important to plan for adequate storage space. Small cloakrooms are increasingly popular, especially for future flexibility and efficient use of space.
Another innovative approach is placing the cloakroom between the bedroom and bathroom, which is particularly useful in smaller homes. This clever layout saves space while maintaining a sense of depth. You enter through a small cloakroom first, then move into the wash area. After showering and changing, you can quickly transition into your dressing routine—perfect for modern women who value efficiency. Storing everyday clothing in the bathroom also eases the pressure on the bedroom’s storage.
However, this design requires careful planning. First, the bathroom must be properly divided into wet and dry zones, with a dedicated shower area. Second, high-quality, water-resistant materials should be used to ensure durability.
If your bedroom is around 15 square meters and has a square shape, you can create a cloakroom by reserving about 3 to 4 square meters. A sliding door can separate a walk-in closet with a wardrobe, and the construction isn’t too complicated—it’s like dividing the bedroom into two sections. The sliding door can be customized to fit your space and allows access from both sides.
The designer suggests: “For the post-80s generation, it’s better to reduce drawers and sliding doors in cabinets, and instead increase hanging rods. People don’t usually like or know how to fold clothes, and even sweaters are often hung up. So, make sure there’s enough space for hanging.â€
I’ve grown up with the habit of tossing shoes and clothes at the entrance. Now, my family has started organizing our space and setting up a small daily routine. A cloakroom is especially valuable for those who rarely do housework and struggle with organization. Thoughtful cabinet layouts in the cloakroom help keep everything neat and easy to find.
Although not everyone can afford a dream home of 120 square meters, you can still create a small, elegant space that fulfills your dream—like a compact yet stylish cloakroom.
In daily life, most people change clothes when they go out and take off their shoes when they come back. If there’s space near the entrance, consider creating a small cloakroom where you can store regularly worn clothes, shoes, umbrellas, and backpacks. The door of the cloakroom can be designed as a large mirror, allowing you to check your appearance after getting dressed.