Japan is developing an evolutionary version of the spring washer "YOSHER" that will effectively prevent loosening

Japan-Japan Tokyo has introduced a groundbreaking spring washer called "YOSHER," designed to revolutionize the way bolts and nuts stay secure. This innovative product operates on a unique principle: when the washer is twisted and fastened onto the object, its reducing force helps prevent loosening. Unlike traditional washers, YOSHER offers a completely new approach to securing fasteners, significantly reducing the risk of accidents caused by loose or fallen components. The concept behind YOSHER is centered around the idea of "safe and secure auxiliary hardware." It's specifically engineered to keep bolts and nuts firmly in place, ensuring long-term stability. The inner diameter of YOSHER is shaped to fit the bottom of the screw thread. As the nut is tightened, part of the washer bites into the screw’s threads, causing the inner diameter to deform and exceed one of the thread crests. This deformation creates a continuous rebound force between the metal surface and the nut, effectively preventing any loosening over time. What makes YOSHER stand out is its simplicity and effectiveness. By using this washer, users can achieve a more reliable and durable connection without the need for additional locking mechanisms. Whether it's in industrial applications, automotive assembly, or everyday machinery, YOSHER provides an intelligent solution to a common problem. With its innovative design and practical benefits, YOSHER is set to become a game-changer in the world of mechanical fastening.

Wedge Prism

Wedge prism is an optical element having plane-inclined surfaces, usually the faces are inclined toward one another at very small angles. Wedges divert light toward their thicker portions.

Wedge prism is commonly used in laser system for eliminating the reflections from the second surface or for beam steering.circle wedge,square wedge,irregular wedge...Every materials,sizes,wedges and coatings may be available by custom orders. Standard and broadband antireflection coatings are available upon request.

                                        optical wedges

                                                                    optical wedges

Specification of our wedge prism as follow:
*Material: HK9L Grade A optical glass,Fused Silica JGS1,JGS2,JGS3, or other optical glass materials.
*Dimension Tolerance:+/-0.20mm to +0.01/-0.01mm 
*Thickness Tolerance:+/-0.20mm to +/-0.005mm 
*Surface Quality:80-50 to 10-5 Scratch/Dig
*Surface Flatness: at 632.8nm lambda to lambda /20 per 25mm 
*Clear Aperture:80% -- 100% 
*Angle Tolerance:3-5 minutes to 3 second  
*Chamfer:0.3+/-0.20mm *45degree
*No Chamfer 
*Coating Optional 

Wedge Prism,Fused Silica Wedge Prism,Jgs1 Wedge Prisms,N-Bk7 Wedge Prism

China Star Optics Technology Co.,Ltd. , https://www.csoptlens.com