ULTECHNOVO Physical Optics Experiment Kit with 50cm Optical Bench, Professional Glass Convex Concave Lens Set for Physics Lab, STEM Science Classroom Educational Equipment for Students and Teachers
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Availability:
14 left in stock
Arrives
Thursday, Apr 30
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Features
- COMPLETE OPTICAL BENCH SET: Features a professional 50cm precision-scaled optical bench designed for accurate light refraction and imaging experiments, making it an essential physics lab kit for schools and home-based STEM learning
- HIGH-TRANSMITTANCE GLASS LENSES: Unlike cheap plastic alternatives, our kit includes premium glass convex lenses and concave lenses that provide crystal-clear imaging and precise focal length measurements for real scientific analysis
- INTERACTIVE STEM LEARNING: Perfect for demonstrating fundamental physics principles such as light reflection, refraction, and the physical imaging laws, sparking curiosity and deep understanding in young scientists and students
- STABLE & DURABLE DESIGN: Constructed with heavy-duty materials to ensure maximum stability during physics experiments, the kit includes secure lens holders, a high-intensity light source, and a projection screen for demonstrations
- CLASSROOM READY & VERSATILE: An ideal science lab equipment gift for teachers and educators, this comprehensive optics experiment set covers the curriculum requirements from middle school to university-level basic optics
Product Dimensions: 19.68 x 3.14 x 1.96 inches
Item Weight: 1 pounds
Manufacturer: ULTECHNOVO
Item model number: 026OW144CP2NRNW25TX0NT
Date First Available: August 29, 2020
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If you place your order now, the estimated arrival date for this product is:
Thursday, Apr 30
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Very good quality.
Reviewed in the United States on February 16, 2026 by OM
There are a number of small annoying flaws that would have been easy to fix when this kit was designed and manufactured, but first let's look at what's in the box: - Lens #1: double concave, 1.16" diameter - Lens #2: 60mm focal length double convex, 1.16" diameter - Lens #3: 100mm focal length double convex, 1.55" diameter - Lens #4: 350mm focal length plano-convex 1.97" diameter - Lens #5: the lens in the light source projector is double convex, 50mm focal length, 1.4" diameter - Target: 2.19" square, white opaque plastic - Black plastic character screen mask - The rail is extruded aluminum; 1.91" wide by 0.94" high (48mm x 24mm) by 17 7/8" long - 12 volt light source (projector) The light source is a 12v automotive light bulb with a bayonet base. It can be adjusted up and down in the projector's housing and is held in place with a set screw. It can also be moved a short distance away and towards the projector lens, held by light friction. The theory is that by adjusting the bulb to put its filament in the projector lens' exact focal point, a uniform beam of light is projected along the rail. In practice the beam could not be accurately centered on the white target when the target is placed at the extreme end of the rail. The best I could do was the beam illuminating the bottom half of the target. It should be easy to substitute a super bright LED as a replacement by discarding the bulb and its holder, and hacking the plastic projector housing to hold the LED. The description mentions "Intuitively display the imaging rules of concave-convex mirror" and "1 x set of mirror base" but to be clear, there is no mirror in the kit. It also mentions "1 x candlestick (with candles)" but that was not included in my kit. Also not included "1 x soft rule", but there is a metric scale permanently attached to the rail. The rail's scale is graduated in 0.5 cm increments. It starts at 0 at the front of the light source projector, with a maximum practical readout of 40 cm. There is only one plastic finishing cap for rail. The lens holders have to be inserted starting at the open end of the rail; in other words, a lens holder cannot be inserted on the fly in the middle of an existing layout. The optical center line for the bench appears to be 35mm above the surface of the rail. Unfortunately there are variations in the center line of the lens holders so none of the lens centers exactly fall along this line, being off by as much as a few millimeters. Unnecessarily sloppy design and execution. The lenses appear to be glass but of only fair quality with some blemishes visible. Sharp enough for demonstration but not anything you'd want in a good quality optical instrument. This is not unreasonable given the cost of the kit. Overall there is limited precision with this kit but it is adequate for qualitative experimentation. With the exception of the largest lens, you can use firm pressure to carefully pop a lens out of its holder; the lens is held in with a thin friction fit plastic ring. The ring is so thin and can be easily broken if not handled carefully. Some, but not all, of the lens holder sleds have a center mark for reading against the rail's built-in scale. Weird. At least the sleds are interchangeable; the lens holder posts are attached to the sled by a friction fit. Someone skilled with 3D printing should be able to make more sleds and custom lens holders without too much difficulty. Hacking the projector to create a better light source should greatly improve the ease of use and accuracy. Even then, an optical bench such as this is best used in a darkened room. So while this kit could have been made better with no additional cost to the manufacturer, it is a bargain compared to similar kits available on Amazon, and with a bit of hacking, it should produce results comparable to similar kits costing twice as much.
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Reviewed in the United States on February 18, 2022 by BC