PinTILT™ Technology

All-Day
All-in-One
All-Around

PinTILT, the hybrid structure consisting of advantages of both waveguide and birdbath AR optics,
provides better form factor, power consumption, and image quality enabling next-level AR smartglasses experiences.

  • All-Day
  • All-in-One
  • All-Around

All-Day

For an augmented reality device to be used throughout the day, it must possess specific characteristics, such as being lightweight, having a long battery life, providing a clear exterior view when not in use, and displaying a wide and clear virtual image that draws users in. The PinTILT™ technology is the only optical solution that fulfills all of these requirements.

Comfortable Fit

Modules equipped with PinTILT™ technology have a shape similar to regular eyeglass lenses. They are compact with minimal protrusion, providing a stable weight balance that ensures a high level of comfort during wear.

High Light Efficiency, Small Battery

PinTILT™ technology offers high light efficiency, resulting in lower power consumption for the display. This significantly reduces the battery's weight, making the smart glasses lighter and allowing for longer wear.

Clear Vision Day and Night

PinTILT™ lenses have a high transmission rate, ensuring bright visibility at night. They also minimize the effects of stray light under the sun or artificial lighting, providing clear vision even in bright daylight.

Social

PinTILT™ structure prevents information from leaking to external observers. At the same time, its high transmittance allows users to maintain eye contact naturally, making it well-suited for everyday use.

All-in-One

The PinTILT™ technology has its strength in the simplicity of integrated design.

Minimal Trade-Off for FOV - B-Type PinTILT™

In AR optical lenses, enhancing one key specification often means a reduction in another. For instance, to increase the FOV(Field of View) or Eye-box, Birdbath designs grow in form factor. EPE(Exit Pupil Expander) designs, on the other hand, can suffer from reduced optical efficiency, leading to dimmer displays or requiring larger batteries. However, our B-Type PinTILT™ technology stands apart. Beyond the minimal thickness required by the display's vertical dimension, it presents virtually no other significant trade-offs.

Minimal Trade-Off for FOV - B-Type PinTILT™

EPE(Exit Pupil Expander) technology requires high-refractive-index materials for expanded FOV(Field of View), leading to higher production costs and manufacturing challenges that impact consumer pricing. Our B-Type PinTILT™ design, however, utilizes a wide Total Internal Reflection angle, enabling a large FOV using only conventional refractive indices.

Minimized Structure (B-type PinTILT™)

The B-type PinTILT™ structure is designed with minimal components, making it suitable for eyeglass forms. It maximizes wearability, making it ideal for everyday AR and AI glasses. This simplified design reduces the complexity that needs to be considered at the device level.

High Manufacturability (Cost Competitiveness)

PinTILT™ lenses are produced using a high-efficiency injection molding process. Unlike birdbath and waveguide designs, which require precise assembly of multiple components, PinTILT™ lenses are assembled with minimal parts, offering high manufacturability.

Exceptional Durability / Material (Durability)

PinTILT™ lenses are made with an injection-molded plastic structure that is solid inside, offering strong durability. As a result, there is no need for additional protective covers or rigid frames. The outer shaping is simple, making it easy to adapt to various designs depending on the desired eyeglass form.

All-Around

PINTILT™ technology offers state-of-the-art performance across a wide range of displays and application fields.

A-Type PinTILT™ for Maximum FOV

A-Type PinTILT™ for Maximum FOV(Field of View) The A-type PinTILT™ structure is ideal for wide FOV applications. It provides 2 to 4 times the field of view compared to the same size and same components. While birdbath designs increase in volume to achieve a wide FOV, waveguides are limited to using only the area below half of the total internal reflection angle for multiple internal reflections. PinTILT™ offers a wider total internal reflection angle, allowing for a significantly larger FOV.

B-Type PinTILT™ Variations

B-Type PinTILT™ structure delivers wide-ranging utility with its various configurations. These encompass a standard model, a translucent combiner for improved social interaction, a hidden collimator focusing on design, and a lightweight build specifically optimized for horizontal text in AI applications.

LetinAR B4 Series
Birdbath
Freeform Half Mirror
LOE Waveguide
DOE/HOE Waveguide

No trade-offs, All-around

LetinAR’s PinTILT™ technology exceeds the trade-off limits and meets all user requirements, resulting in optimized product completeness and performance.

Smart Glasses

Smart Goggles

HUD

Market Flexibility

The PinTILT™ structure offers diverse variations, specifically designed to cater to the unique demands of every consumer. These variations include the basic type, suitable for car HUD, the A-type, perfect for googles, and the B-type, well-matched for glasses. With such versatility, the PinTILT™ technology ensures the most optimal performance in all application fields.

Display Flexibility

The PinTILT™ technology can be readily integrated with a range of commercially available displays, including OLEDoS, microLED, LCOS, and LCD, ensuring consumers’ diverse needs are met. Whether it be for a more affordable, brighter, or more reliable AR device, LetinAR can provide the optimal solution by selecting the appropriate display.

Combiner Flexibility

The PinTILT™ technology not only supports Pin Mirrors but also enables the use of a wide range of combiners made from different materials. This includes various combiner components like half mirrors, HOEs, DOEs, dielectric coatings, or polarization that are typically utilized in traditional waveguide and birdbath structures, and can be efficiently applied to the PinTILT™ structure.