Science Education

The Serounder 37mm 0.25X super fisheye lens attaches to 37mm camera lenses for dramatic wide-angle fisheye effects and splits into a 12.5x macro for close-up shots. Its standout two-part aluminum alloy design offers versatile creative photography, perfect for shooters needing portable distortion and magnification tools.

• Unlock ultra-wide fisheye views to capture expansive scenes with dramatic curvature
• Detach for 12.5x macro magnification to reveal intricate close-up details
• Lightweight at 228g with included storage bag for effortless portability
• Durable aluminum alloy build ensures long-lasting performance on the go
• Optical glass delivers sharp, vibrant images despite fisheye distortion

Versatile two-part design combines fisheye and macro functions. Sturdy aluminum alloy and optical glass for reliable quality. Compact and easy to carry with protective bag and cloth.

Only compatible with 37mm lenses, limiting broader use. Fisheye distortion may not suit all straight-line photography needs. Added weight could feel bulky on smaller lightweight cameras.

The AISITESY ZP1.0 is a 4-lens plastic optical flip-flop occluder for training eye muscles and improving binocular vision. Its versatile design and durable construction suit optometrists, students, and home users for targeted exercises.

• Enhance binocular vision and depth perception with targeted eye muscle training
• Switch lenses effortlessly via flip-flop mechanism for customized exercises
• Isolate and train individual eyes precisely for better coordination
• Adjustable fit accommodates various face sizes and eye distances comfortably
• Portable lightweight design ideal for clinics, schools, or home use

Versatile 4-lens system for diverse optometric exercises. Easy flip occlusion for quick eye isolation. Compact and portable for on-the-go use.

Plastic material may feel less premium than metal alternatives. Limited to 4 lenses, potentially restricting advanced exercises. Requires familiarity for optimal use in complex training.

This tempered glass optical lens with 1.0 diopter correction fits the Cressi Focus diving mask for one eye, addressing nearsightedness. Divers and snorkelers needing clear underwater vision without prescription glasses should buy it.

• Achieve sharp underwater vision by correcting nearsightedness precisely
• Tempered glass delivers durable, shatter-resistant clarity
• Customizable for left or right eye to suit your needs
• Seamlessly mounts on Cressi Focus mask for hassle-free use
• Designed by Cressi, Italian pioneers in diving gear since 1946

Tempered glass for superior strength and optical quality. Exact 1.0 diopter correction for nearsighted divers. Tailored fit for Cressi Focus mask ensures stability.

Only one lens included per package. Compatible exclusively with Cressi Focus mask. Separate orders needed for both eyes.

This 4-piece optical flipper set features lenses from ±0.50D to ±2.00D for progressive eye muscle training and focus improvement. Its lightweight, durable design with clear labels and ergonomic grip makes it perfect for adults, children, and professionals combating screen strain or visual fatigue.

• Strengthens eye muscles for better focus flexibility and reduced fatigue
• Portable lightweight design for easy use at home, office, or on the go
• Progressive lens powers (±0.50D to ±2.00D) enable customized vision training
• Ergonomic grooved handle ensures secure, comfortable grip during exercises
• Larger lenses and baffle provide wider field of view for effective sessions

Versatile for all ages and screen users. Ready-to-use with no assembly needed. Compact and space-saving storage.

Limited to four specific diopter strengths. Plastic shell may feel less premium. Benefits require consistent daily use.

This 4-lens plastic optical flip-flop occluder is a versatile tool for training eye muscles and improving binocular vision. Optometric professionals and students should buy it for its durable, adjustable design ideal for clinics, schools, or home use.

• Enhances binocular vision and eye coordination with targeted exercises
• Easily switch between 4 interchangeable lenses for customized training
• Adjustable fit accommodates various facial structures and eye distances
• Precise occlusion isolates eyes for focused muscle training
• Durable plastic build ensures reliable use in professional settings

Versatile 4-lens system supports multiple optometric exercises. Flip-flop mechanism allows quick lens changes. Lightweight and portable for easy transport.

Plastic construction may feel less premium than metal alternatives. Requires optometric knowledge for effective use. Limited to four specific lenses for exercises.

This 100mm optical glass LED condenser lens features a 60° beam angle, aspheric design, and bracket for 20-200W chips, delivering 98% light transmittance and -30~200℃ temperature resistance. DIY builders of spotlights, projectors, and car lights will appreciate its easy installation and versatile performance.

• Achieve razor-sharp focus with 98% light transmittance for brighter, more efficient illumination
• Thrive in extreme conditions from -30~200℃ for reliable use in any environment
• Perfectly compatible with 20-200W LEDs to upgrade spotlights, projectors, and car lights effortlessly
• Precise 60° aspheric beam angle delivers targeted light without waste
• Effortless setup with included bracket and rubber circle for secure, tool-free mounting

Exceptional 98% light transmittance maximizes LED output. Wide -30~200℃ temperature range handles harsh conditions. Aspheric design provides precise 60° beam control.

Glass construction requires careful handling to avoid cracks. Fixed 60° beam angle limits adjustability for some applications. Bracket may need extra reinforcement for high-vibration uses.

Mryok offers HD polarized replacement lenses precisely compatible with Ray-Ban Meta Wayfarer RW4006 50mm and Gen 2 RW4012 50mm smart glasses. With nano-coating to repel water, oil, sweat, and dust plus 100% UV protection, they suit owners needing durable, clear-vision upgrades.

• Seamless fit restores your Ray-Ban Meta smart glasses to like-new condition
• Nano-coating repels water, oil, sweat, and dust for effortless cleaning
• 100% UV protection blocks harmful UVA, UVB, and UVC rays for eye safety
• 98% light transmission delivers crystal-clear vision without distortion
• High impact resistance ensures lenses withstand daily wear and adventures

Precise compatibility with RW4006 50mm and RW4012 50mm models. Superior UV blocking and water-repellent nano-coating. High light transmission for natural, vibrant views.

Installation may require precision to avoid misalignment. Third-party lenses might slightly differ from originals in tint. Mixed user experiences with fit on edge cases.

The AISITSY optical trial lens frame is a fully adjustable tool for precise optometry testing of nearsightedness, farsightedness, astigmatism, and color vision. Optometrists, opticians, and vision testing enthusiasts should buy it for its 1mm calibration accuracy and multi-lens versatility.

• Perform accurate home or professional tests for nearsightedness, farsightedness, astigmatism, and color vision recognition
• Measure PD precisely from 50-76mm binocular and 24-40mm unilateral with 1mm calibration for perfect lens pairing
• Insert up to 4 lenses per eye with 360° rotation for customized positioning and maximum visual clarity
• Adjust frame legs from 98-135mm and up to 200mm width for secure, comfortable fit on any face shape
• Test field of vision and select optimal lenses based on results for enhanced everyday vision

Exceptional adjustability ensures comfort across face sizes. Precise 1mm PD calibration delivers reliable measurements. 360° lens rotation allows personalized, distortion-free testing.

PD range limited to 50-76mm binocular, not ideal for wider sets. Trial lenses sold separately, requiring additional purchase. May require practice for optimal multi-lens setup.

PATIKIL 40.6mm flat convex lenses in a 3-pack are made of durable PMMA acrylic for LED flashlights, bike headlights, and spotlights. They deliver up to 90% light transmittance and uniform beams, ideal for DIY upgraders seeking brighter, clearer illumination.

• Boosts light output up to 90% transmittance for brighter, more efficient lighting
• Creates uniform beams without dark spots, shadows, or black holes
• Durable PMMA acrylic resists high heat and aging for long-lasting performance
• Plano-convex design maximizes focus and clarity for close-up or distant viewing
• Simple drop-in replacement upgrades any compatible LED flashlight or headlight

High transparency and strong light gathering for superior brightness. Heat-resistant material maintains performance over time. Compatible with high-power LEDs from 1W to 50W.

Requires exact size confirmation to ensure proper fit. Installation involves removing old lens, needing basic tools. Best suited for LED applications, not general optics.

This 60-pack of 25mm double convex lenses is crafted from durable, transparent acrylic for safe physics optics experiments. Ideal for junior high students and teachers seeking hands-on tools to explore light properties.

• Safe handling with polished smooth surfaces that prevent hand injuries during experiments
• Clear light focusing for enhanced student understanding of optics principles
• Versatile use in classrooms, labs, or daily tasks like reading small print
• Lightweight and compact for easy portability and storage in desks or bags
• Durable construction withstands repeated use in educational settings

High-quality polish ensures safe, confident use. Compact size ideal for student labs and easy transport. Transparent design provides clear views for effective learning.

Acrylic material may not match true optical glass performance. Small 25mm diameter limits use in advanced applications. No storage case included for organization.