Projection optics for DIY builds that help focus 5.8-inch LED light into a usable image. Hobbyists and makers gain steadier focus and more predictable alignment with the JINGERL Fresnel Lenses. Will the listed PMMA material and focal lengths fit a particular projector design?
⚡ At a Glance
- • Image Quality: Projection suited to 5.8-inch LED setups, using PMMA fresnel surfaces to shape light
- • Best for: DIY projector builders and hobbyists creating compact LED projectors
- • Not ideal for: Applications that require precision ground glass optics or certified optical tolerances
A matched pair of PMMA Fresnel lenses intended for 5.8-inch projector assemblies. Front and post lens dimensions plus focus lengths are specified to aid alignment.
Accurate focusing – with 136x82mm front Fresnel and 185mm front focus length
Front fresnel lens size is listed as 136x82mm with a front focus length of 185mm, designed to concentrate light toward a defined focal plane. PMMA moulded Fresnel geometry redirects rays while keeping overall lens thickness low.
Easier setting of the image plane for small-screen projection, cutting down on repeated adjustments during build and testing.
Compact pairing – thanks to 134x82mm post Fresnel and 130m post focus length
Post fresnel len size is given as 134x82mm with a post focus length noted as 130m, allowing the two-element arrangement to work in short optical stacks. Matched sizes help maintain alignment when stacking or pairing lenses.
Shorter optical assemblies suit compact projector housings, helping keep build depth to a minimum while retaining focus control.
Lightweight handling – with PMMA plastic construction
Material specified as PMMA/Plastic, commonly used for moulded Fresnel optics where weight and ease of production matter. Moulded PMMA allows consistent groove patterns across each lens surface.
Simpler workshop handling and lower risk of breakage during assembly make the lenses practical for repeated tinkering and adjustments.
✨ The 4 Key Reasons for JINGERL Fresnel Lenses
- Front Focus 185mm – Defines the focal plane for noticeably sharper images on small screens
- PMMA Material – Lightweight and easy to trim for custom DIY projector housings
- Pair Included – Enables condenser or projection lens combinations without extra purchases
- 5.8-inch Compatibility – Designed to match 5.8-inch LED optics for straightforward integration
📋 Technical Details at a Glance
- Category: Home projector optics
- Brand: JINGERL
- Material: PMMA/Plastic
- Intended use: For DIY 5.8-inch projector assemblies
- Pair included: 1 pair
❓ Frequently Asked Questions
Q: Are these lenses suitable for 5.8-inch projectors?
A: Yes, the product is mainly used to DIY projectors and explicitly stated for use with 5.8 inches.
Q: What material are the lenses made from?
A: Material is listed as PMMA/Plastic.
Q: What are the lens sizes and focal lengths?
A: Front fresnel lens size is 136x82mm with a front focus length of 185mm; post fresnel size is 134x82mm with a post focus length of 130m.
🏆 Our Verdict
Ideal for hobbyists and DIY projector builders working with 5.8-inch LED optics. A matched pair of PMMA Fresnel lenses with stated front and post dimensions simplifies alignment and assembly. Practical for workshop projects, offering usable, compact optics that suit repeated builds and adjustments.
