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2.4 inch Projection Fresnel Lens

Specification

[Product Name] Fresnel Lens for DIY Projector

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

[Lens Type] Rear Projection Type

[Dimension] 62.5x37mm (2.4 inch)
[Focal Length] 55mm

[Groove Pitch] 0.3mm

[Optical Design] High Precision Micro-Structured Surface
[Manufacturing Process] Injection Molding with Precision Tooling


How does a rear projection Fresnel lens improve image quality?
A rear projection Fresnel lens helps distribute light more evenly while minimizing reflection, resulting in smoother brightness and clearer visual output.

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Projection Fresnel Lens | 2.4 Inch Rear Projection Acrylic Lens | 55mm Focus Distance for Clear Imaging Systems


This 2.4-inch projection Fresnel lens is engineered for rear-mounted optical systems, delivering balanced illumination and refined image presentation in limited-space setups.


Rear-mounted Fresnel lenses are widely used to balance light distribution in projection environments.


Optical clarity in projection systems depends on controlled light direction and surface structure.


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: Where is a rear projection Fresnel lens typically installed?
A: It is positioned behind the projection surface to manage light spread and improve viewing consistency.

Q2: What role does groove interval play?
A: It affects how smoothly light transitions across the surface, influencing visual uniformity.

Q3: Is this lens suitable for portable devices?
A: Yes, it fits small-scale projection and display applications.

Q4: Can design parameters be adjusted?
A: Yes, dimensions and optical specifications can be tailored.




Advantages

Functional Highlights:

  • Rear-positioned optical structure improves light distribution across projection surfaces
  • Reduced surface reflectivity supports cleaner visual output
  • Controlled groove interval contributes to smoother image transition
  • Transparent PMMA enhances light throughput efficiency
  • Suitable for small-scale projection assemblies and display modules

Application Scenarios:

  • Back-mounted projection systems
  • Portable display units
  • Optical prototyping and experimental setups
  • Educational projection devices

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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