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0.49-inch Birdbath Digital Optical Module for AR

The BB049 Birdbath Optical Module is a high-resolution, see-through solution designed specifically for next-generation Near-Eye Displays (NED) and Augmented Reality (AR) devices. It utilizes dual 0.49-inch Silicon-based OLED screens to deliver a stunning monocular 1920x1080 image with a wide 41° diagonal Field of View (FoV). Featuring an adjustable diopter (0D to 5D) and all-plastic optics, this advanced digital optical module provides a customizable, light, and high-clarity viewing experience, making it essential for advanced AR/MR applications.
  • BB049

  • High-Definition display

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Unrivaled Performance for AR/MR Systems

The BB049 module sets a new standard for Birdbath Near-Eye Displays. Key features include:

  • Immersive Visuals: A wide 41° diagonal Field of View combined with 1920x1080 FHD resolution ensures sharp, expansive augmented reality content.

  • Custom Comfort: Integrated 0D to 5D Diopter Adjustment allows users with vision variation to use the device without prescription lenses, significantly enhancing user experience.

  • High Clarity & Brightness: Achieves up to 1800 nits of screen brightness, ensuring excellent visibility for the see-through display, even in varying ambient light conditions.

  • Lightweight Design: Utilizing all-plastic optical lenses and a compact Birdbath structure, the module is engineered for low weight and comfortable long-term wear in AR headsets.


Seamless System Integration and Quality Assurance

The BB049 is designed for straightforward integration into commercial AR/MR platforms. Its precise binocular combination tolerances (Δ X/Δ Y ≤0.67°) guarantee minimal visual fatigue and superior spatial alignment, critical for professional-grade near-eye devices. Quality and reliability are ensured through rigorous testing procedures, meeting industry standards for optical performance and mechanical stability.


Applications for the BB049 Birdbath Optical Module

  • Augmented Reality (AR) Headsets

  • Mixed Reality (MR) Devices

  • Professional Near-Eye Display Systems (e.g., medical, industrial maintenance)

  • Virtual Training and Simulation Hardware

  • Next-Generation Consumer Smart Glasses


Module Drawing-产品结构图

Item

Parameter

Min.

Typ.

Max.

Unit


Angle of View

Note1

Diagonal field of view Angle

41



Degree

△ Diagonal Angle of view



1.5

Degree

Binocular difference in

(@-1D)



0.5

Degree

TV distortion

Note3

(@-1D)



1%


Modulation transfer function (CTF)

Center CTF@4ppl

(@-1D)

0.4

0.5



Edge CTF@4ppl (@-

1D)

0.2

0.3




Binocular combination

Note5

△X (@-1D)

0.67

0

0.67

Degree

△Y (@-1D)

0.67

0

0.67

Degree

△Rotation (@-1D)

0.67

0

0.67

Degree

Diopter

Note6

Limit diopter 1

0.75 D

0.25 D

+ 0.25 D


Limit diopter 2



-5D


transmittance

Note7



15%



Diopter to adjust torque




60

gf*cm


Frequently Asked Questions

Q: What is the purpose of the BB049 Birdbath Optical Module?

A: The BB049 is a see-through digital optical module designed to provide a high-quality display for Near-Eye Display (NED) systems, primarily used in Augmented Reality (AR) and Mixed Reality (MR) headsets.


Q: What is the maximum resolution and Field of View (FoV) of the BB049?

A: The module offers a monocular resolution of 1920x1080 (FHD) and provides a wide 41° diagonal Field of View (FoV), delivering an immersive visual experience.


Q: Can the diopter be adjusted on the BB049?

A: Yes, the BB049 features an adjustable diopter range of 0D to 5D, allowing users to customize the focus without needing to wear separate corrective lenses.


Q: What display technology does the 0.49-inch screen use?

A: The display utilizes high-performance 0.49-inch Silicon-based OLED (Micro-OLED) screens, which are essential for achieving the module's high resolution and bright output (up to 1800 nits screen brightness) in a compact form factor.


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