Optical Polishing & Lapping Services

Industry Leaders in
Ultra-Precision Surface Finishing

In today’s competitive high-tech manufacturing environment, surface quality and precision often mark the critical difference between success and failure. Since 2007, YISHUN Optical has been dedicated to providing industry-leading optical polishing and lapping services, solving the most challenging precision machining needs for clients worldwide. Our specialized technology achieves nano-level accuracy with surface roughness as low as Ra 1 nm, dimensional tolerances precise to ±0.5 μm, making us the partner of choice for industries where extreme precision is non-negotiable.

Are you facing these challenges?

Optical polishing components requiring extreme flatness and surface quality
Complex geometries needing precise polishing
Ultra-precision surface finishing requirements for hard materials
High-volume production needs under strict tolerance requirements
Processing difficulties with special materials like sapphire, silicon carbide, or quartz

YISHUN Optical has the advanced equipment, technical expertise, and experienced engineers to provide comprehensive optical polishing and lapping solutions, no matter how complex your project or how stringent your requirements.

Understanding Our Core Services

Precision Polishing Services

Polishing is a process that uses polishing compounds to remove surface irregularities and create a smooth, reflective surface. At YISHUN Optics, we utilize advanced technology and equipment to process a variety of materials, including metals, ceramics, optical glass, and plastics, providing precise polishing solutions for industries such as electronics, optics, and aerospace.

Our polishing capabilities:

High-Precision Lapping Services

Grinding is a specialized process that ensures the surface of metal parts is smooth and uniform. This process can also create fine or mirror-like optical effects on certain metals.

YISHUN Optical has been providing precision lapping services since 2007, specializing in high-accuracy optical and mold components. Our lapping processes achieve:

Distinguishing Between Polishing and Lapping

While both polishing and lapping are used for surface refinement, they differ in technique and outcome:

Lapping: Involves two surfaces rubbing against each other with abrasive material in between. This technique is often used for achieving extreme flatness and is ideal for applications such as lens manufacturing, mold finishing, and optical component processing.
Polishing: Use soft materials such as wool balls or cotton, combined with fine abrasives, to achieve a mirror-like shine. It is typically used for final surface finishing to enhance the smoothness and gloss of the material.

In many cases, both lapping and polishing are used in sequence to achieve the required surface precision.

Our Technological Advantagesents

YISHUN Optical employs multiple advanced processes to provide the optimal solution for your specific needs.

Polishing Methods

Precision Polishing:Using soft materials and fine abrasives to create mirror-like effects
Lapping: Abrasive friction between two surfaces to achieve extreme flatness
Barrel Polishing: Ideal for batch polishing of smaller components
Chemical Mechanical Polishing (CMP): High-precision polishing combining chemical and mechanical action
Electropolishing: Electrochemical process for materials difficult to polish by traditional methods

Lapping Processes

Polishing Process

Our polishing process is broken into several stages:

Rough Polishing: Coarse abrasives are used to remove large surface irregularities
Medium Polishing: Finer abrasives smooth out the surface, removing smaller imperfections
Finishing: The surface is polished with even finer abrasives to refine its smoothness and achieve the desired finish
Mirror Finish: The final step involves using the finest abrasives to achieve a mirror-like surface with minimal material removal

Materials We Process

YISHUN Optical has expertise in handling a wide range of advanced materials:

Metals

Ceramics

Crystalline Materials

Plastics

Applications

We process a wide range of components used in advanced industries

Wafer Chuck Plates & Precision Tables

We provide ultra-precision polishing for positioning plates and precision tables used in semiconductor manufacturing and precision measurement. Our services ensure high accuracy in flatness, parallelism, and dimensional tolerance.

Surface Plates

Surface plates used for assembly and inspection require absolute flatness. We provide precision machining for both stone and ceramic surface plates, as well as thermal spraying for specialized surfaces.

Shims

Our shims are manufactured to guarantee high accuracy, with thickness variations as small as 1 μm. These are essential in applications requiring precise assembly, such as in electronic devices, medical equipment, and precision measurement tools.

Molds

We offer precision polishing for molds used in manufacturing products via injection molding, press working, and plastic working. Our expertise ensures that even complex shapes and lens molds are polished to the highest standards.

Spheres

Our polishing services extend to high-precision spherical components used in bearings, measuring probes, and other high-accuracy applications. We can achieve ultra-precision on spherical surfaces with strict tolerances for sphericity and roughness.

Various Crystal Wafers

We perform precision Chemical Mechanical Polishing (CMP) and thin polishing of wafers made from materials such as silicon, sapphire, SiC, and diamond. We can handle small lots for experimental research or large-scale mass production.

Test Pieces

We process test pieces used in friction, wear, and tensile tests. Our service is versatile and supports rapid turnaround for experimental and testing purposes.

Industry Solutions

YISHUN Optical’s ultra precision machining services meet the needs of multiple industries

Semiconductor & Electronics

The microelectronics industry demands extremely strict requirements for component accuracy and surface quality. Our services provide the nano-level precision needed for wafer processing equipment, precision positioning systems, and electronic packaging.

Medical Devices

Medical device manufacturers rely on our ultra precision machining capabilities to ensure the performance and reliability of implants, surgical instruments, and diagnostic equipment.

Optics & Laser

From high-end camera lenses to laser systems, our machining techniques provide optical elements with the performance characteristics they require.

Automotive Industry

Precision automotive parts, particularly those used in advanced driver assistance systems (ADAS) and electric vehicles, rely on our services for exceptional performance.

New Energy

Solar cells, fuel cells, and energy storage devices all require precise component machining, which is precisely where YISHUN Optical's expertise lies.

Why Choose YISHUN Optical?

Advanced Technology and Equipment

Material Expertise

Quality Commitment

Extensive Experience

Customer-Centric Approach

How Our Customers Benefit

Get Started with Your Optical Polishing and Ultra Precision Machining Projects

Ready to take your optical projects to the next level? Yishun Optical is here to support you every step of the way. Our team is dedicated to providing a seamless experience, ensuring that your optical components meet the highest performance standards through our expert polishing and ultra precision machining services.