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High Clarity Low-Fog Fresnel Lens | 3.5 Inch

Specification

[Product Name] High Clarity Low-Fog Fresnel Lens

[Manufacturer] Shandong Yuying Optical Instrument Co., Ltd
[Available Sizes] Optical-grade PMMA (Acrylic)

[Optical Role] Rear-Side Display Interface Layer
[Surface Profile] Fine Circular Groove Array

[Dimension] 96.2 × 58 mm (3.5 inch class)

[Focal Length] 70mm

[Groove Pitch] 0.3mm

[Manufacturing Route] Precision Pattern Replication

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High Clarity Low-Fog Fresnel Lens | 3.5 Inch Rear Display Layer PMMA Optic | 70mm Focal Length for Projection Panels


Shandong Yuying Optical Instrument Co., Ltd is a specialized manufacturer focusing on Fresnel optical components, supplying industrial and projection system clients worldwide.


This 3.5-inch Fresnel lens is designed as a rear display layer, maintaining clear light output by minimizing fogging effects in projection systems.


  • Surface haze can reduce perceived clarity in projection systems.
  • Optical materials with low fog behavior maintain better visibility.

What is a low-fog Fresnel lens used for?
A low-fog Fresnel lens helps maintain clear light transmission by reducing surface haze, improving visibility in projection displays.

Customization Services

Yuying provides customized Fresnel lenses for projectors, tailored in terms of focal length, dimensions, and groove design.


  • Custom Fresnel lenses available in varied sizes, shapes and focal lengths
  • Optimized thread pitch/tooth profile: Enhances resolution, clarity and brightness
  • Eccentric condenser lens technology: Expands keystone correction range for optimal viewing in both desktop/ceiling installations
  • Front-rear lens configuration improves light utilization efficiency


Q1: What causes fogging in projection lenses?
A: Surface conditions and environmental factors can lead to light scattering.

Q2: How does a low-fog lens improve clarity?
A: It minimizes haze formation, allowing clearer light transmission.

Q3: Why is this lens placed at the rear side?
A: It helps refine the final light output before reaching the viewer.

Q4: Can this lens be adapted for different systems?
A: Yes, parameters can be adjusted for various applications.




Advantages


OOptical Characteristics:

  • Rear-layer placement supports light exit conditioning from projection systems
  • Low-fog surface behavior helps maintain visual transparency under varying environments
  • Structured groove array guides light in a controlled emission pattern
  • PMMA substrate provides stable optical transmission without haze accumulation
  • Suitable for applications requiring consistent viewing clarity

Application Range:

  • Projection display panels
  • Visual output modules
  • Information display devices
  • Projection-based viewing systems

Production Strength:

  • Established Fresnel component manufacturing process
  • Internal tooling replication capability
  • Stable structural repeatability
  • Custom engineering support for optical parameters

Functions

Fresnel lenses perform beam collimation and focusing:

1. Convert point sources into parallel light, significantly enhancing edge brightness of display panels while eliminating sunspot effects and improving overall brightness uniformity
2. Typically used with other optical components (e.g. cylindrical lenses)
3. Removing collimation lenses causes substantial light loss through panels, resulting in noticeable hotspots and reduced edge brightness
4. On the reverse side of LCD screens, light must be converged from panels to projection lenses



Application Examples

  • Portable Projectors: Ultra-thin Fresnel lenses enable compact optical engines as small as the palm of your hand.
  • Rear-Projection TVs: Large-format Fresnel screens are used for light diffusion and viewing angle control.
  • 3LCD/DLP Projection Technology: Both rely on Fresnel lenses as key optical components for light collimation and concentration.

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