Micro Optical
Elements

NSG's micro-optical elements are formed using advanced imprint technology. By consistently handling all stages of development from optical design to mass production in a one-stop process, NSG accelerate your product development. NSG sophisticated optical design capabilities allow us to design lenses with various optical properties. Moreover, with high-precision alignment control, NSG can directly form lenses on optical components on a wafer. Furthermore, the lens material can be chosen from sol-gel glass, which incorporates glass manufacturers' technologies, or organic-inorganic hybrid materials, allowing the formation of durable lenses with high heat resistance, chemical resistance, and other properties suitable for processes such as reflow.

NSG's Strengths

Point 1

Optical Design to Meet Diverse Needs

  • Capable of producing intricate lens structures such as diffuser plates, diffraction gratings, lens arrays, and surface treatments like moth-eye structures.
  • Enables complex structures and highly precise optical designs that were challenging with traditional methods.

Point 2

Durable Materials

  • As a leading global glass manufacturer, NSG is confident in its compositions, including sol-gel glass and organic-inorganic hybrid materials.
  • NSG provides optical components with excellent mechanical properties, such as reflow resistance (above 330 degrees Celsius), chemical resistance, laser resistance, and low coefficient of thermal expansion.

Point 3

Sophisticated and Highly Productive Imprint Technology

  • Capable of handling wafers up to 8 inches, enabling large-area production in a single batch.
  • High alignment precision (±0.001 mm) allows for lens formation on semiconductors and wiring substrates.
NSG's Strengths
Micro Optical Elements Application

01

Application

Scenes, Segments, and Application Examples

NSG's high-precision optical lenses using nanoimprint technology are widely utilized across various fields. They demonstrate their true value in areas such as 3D sensing for facial recognition, LiDAR, camera lenses, displays, and optical communications. For example, optical components that require high alignment precision, such as LOW (Lens on Wafer), and components that can freely control light, such as diffuser plates and diffraction gratings, are actively used in these fields.

3D sensing(Diffuser)
3D sensing(Diffuser)
LiDAR(Diffraction grating)
LiDAR(Diffraction grating)
Fiber optics(LOW)
Fiber optics(LOW)
Display(Diffuser, DOE)
Display(Diffuser, DOE)
Lens(Moth-eye)
Lens(Moth-eye)
Micro Optical Elements Service

02

Service

One-Stop Service

NSG provide a comprehensive one-stop service, covering everything from optical design to mass production. Post-processing options such as double-sided molding and AR coating through vacuum deposition are available. NSG can handle substrates up to 8 inches in size, enabling large-area molding that reduces costs. Additionally, we support photolithography molding for applications like LOW (Lens on Wafer), allowing for precise lens formation on optical elements on semiconductor wafers or glass substrates, achieving high alignment precision and efficient mass production.

Furthermore, each molded lens can be evaluated individually for characteristics and shape using automatic inspection equipment. By responding to a wide range of customer requirements, NSG has developed a variety of technologies and services, making our one-stop service a reality.

Technology Map

Design

Optical design

Structral design

Mold

Machining

Laser patterning

EB patterning

Proprietary materials

High precision

High durability

Large mold capabilities

Lens

High form accuracy

High intimacy

Low residual stress

High reliability

Reflow resistance

Low water absorption

Chemical resistance

Molding

Alignment accuracy

Thickness control

On target

lithography

Double-side molding

Handling

Functional wafer

Substrate with wiring pattern

Thin substrate

Weak substrate

8 inch wafer

Incidental processing

Film deposition

Cutting

Spin cleaning

Examination

Optical properties

Positional accuracy

Thickness

Appearance

Auto inspection

Mapping

Design

NSG can provide services from optical design and structural design according to various required specifications.

Mold

NSG manufacture molds using the most suitable method for your specifications. High-precision molds are suitable for mass production because they can be made in large sizes and have excellent durability.

Lens

NSG proprietary organic-inorganic hybrid materials can be transferred with high shape accuracy and have excellent durability, including reflow heat resistance exceeding 330℃.

Molding

Lenses and other optical elements are formed on various substrates such as glass and semiconductors. It is possible to form lenses with controlled alignment or on-target, and also to freely set locations where resin is not placed.

Handling

Even patterned functional wafers and thin, easily broken substrates can be protected and processed.

Incidental processing

NSG also perform incidental processing such as film deposition, cutting, and cleaning upon request.

Examination

Key inspection items such as optical properties, positional accuracy, thickness, and appearance can be evaluated and results mapped using automated inspection equipment.

Micro Optical Elements Technology

03

Technology

Imprint Technology

Imprinting is a technology that uses a "mold" to transfer its shape. With NSG's precise optical simulation and design expertise, intricate patterns and lens shapes can be formed on substrate surfaces. Additionally, the materials developed by NSG offer high shape accuracy during imprint processing, with excellent optical properties and various durability features, including reflow heat resistance.

Isolated Lens Array
Isolated Lens Array
Rectangle
Rectangle
Moth-eye
Moth-eye
V-groove
V-groove

Imprint Manufacturing Process

Sol-Gel Glass

1.Pre-treatment
1.Pre-treatment
2.Molding (Thermal Curing
2.Molding (Thermal Curing
3.Demolding
3.Demolding
4.Post-treatment
4.Post-treatment

Organic-Inorganic hybrid material

1.Material expansion
1.Material expansion
2.Molding (UV Curing)
2.Molding (UV Curing)
3.Demolding
3.Demolding

Consult NSG!

NSG's micro-optical elements have continuously evolved through market needs and customer demands. No matter how challenging the requirements, NSG provide technological solutions and deliver the best outcomes for people and society. Please feel free to consult NSG for your needs.