| Image | Part Number | Description / PDF | Quantity | Rfq |
|---|---|---|---|---|
 |
Keystone Electronics Corp. |
LENS RED 180DEG FRESNEL RING SNP |
900 |
|
 |
Keystone Electronics Corp. |
LENS CLR 180DEG FRESNEL RING SNP |
1000 |
|
 |
Keystone Electronics Corp. |
LENS CLR 180DEG FRESNEL RING SNP |
2100 |
|
 |
Keystone Electronics Corp. |
LENS RED 180DEG FRESNEL RING SNP |
2147483647 |
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Optical lenses are critical components in optoelectronic systems, designed to focus, collimate, or shape light waves through refraction. These precision-engineered components enable control over light propagation in wavelength ranges spanning UV to IR spectra. Modern applications span imaging, telecommunications, industrial sensing, and scientific instrumentation, with recent advancements enabling miniaturization and multi-spectral capabilities.
| Type | Functional Characteristics | Application Examples |
|---|---|---|
| Spherical Lenses | Simple curvature surfaces, cost-effective mass production | Basic imaging systems, consumer electronics |
| Aspherical Lenses | Non-spherical surfaces correcting spherical aberration | High-end cameras, VR headsets |
| Cylindrical Lenses | One curved surface for line generation or astigmatism correction | Laser beam shaping, barcode scanners |
| Diffractive Lenses | Micro-structured surfaces enabling thin profile designs | AR/MR headsets, LiDAR systems |
| Gradient-Index (GRIN) Lenses | Refractive index variation within material volume | Endoscopic imaging, fiber coupling |
Typical lens assemblies consist of: - Optical substrate (glass/crystal/polymers) with precision-surfaced curvatures - Anti-reflective coatings (single/multi-layer dielectrics) - Mechanical housing for alignment stability - Optional spectral filters or diffractive elements Advanced designs integrate liquid crystal layers for tunable focus or MEMS-based adaptive shaping.
| Parameter | Description | Importance |
|---|---|---|
| Effective Focal Length (EFL) | Distance between principal plane and focal point | Determines field of view and magnification |
| Clear Aperture | Usable light-transmitting diameter | Defines throughput and resolution potential |
| Wavefront Error | Deviation from ideal wave propagation ( RMS) | Metric for optical quality and aberration control |
| Transmission Range | Spectral bandwidth with >80% throughput | Matches light source characteristics |
| Thermal Stability | dn/dT coefficient and CTE values | Ensures performance under temperature variation |
Key industries include: - Semiconductor manufacturing (DUV lithography optics) - Medical imaging (endoscopic GRIN lenses) - Autonomous vehicles (LiDAR beam steering systems) - Telecommunications (fiber optic collimators) - Scientific research (extreme UV focusing mirrors)
| Manufacturer | Product Line | Technical Highlights |
|---|---|---|
| Edmund Optics | 59-871 C Series Fixed Focal Length Lens | 25mm focal length, C-mount, 0.03 wavefront accuracy |
| Thorlabs | AC254-050-A | Achromatic doublet, 50mm EFL, AR coating 400-700nm |
| Canon | Hybrid Aspherical Lens | Used in EOS R5 camera, 0.01 surface precision |
| Suess Precision Optics | Custom Diffractive Optics | Efficiency >95% at 1550nm wavelength |
Key considerations: - Match spectral transmission to light source (e.g., UV fused silica for 200-350nm) - Balance EFL with sensor size for desired FOV - Environmental factors: operating temperature (-40 C to +85 C typical) - Mounting compatibility (CCS-B, M12, or custom interfaces) - Cost vs. performance trade-offs (e.g., aspheric vs. spherical)
Current developments focus on: - Metasurface-based flat optics for AR applications - Multi-material hybrid lenses combining glass and polymers - AI-optimized lens designs reducing Zemax simulation cycles - Wafer-level manufacturing enabling CMOS camera lens arrays - SWIR imaging lenses leveraging indium gallium arsenide (InGaAs) materials