**Product Specifications**
Model NO.: BS-2070F (LED)
Product Name: Biological Microscope
Optional System: Infinite Optional System
Eyepiece: WF10X/20
Illumination: LED Illumination 3W
Trademark: BestScope
Specification: CE
Origin: China
HS Code: 9011800090
**Introduction**
The BS-2070F (LED) series of LED fluorescence microscopes are newly developed instruments that use LED technology as the fluorescent light source. Compared to traditional mercury lamps, LEDs offer a significantly longer lifespan and improved performance. This makes them ideal for high-quality imaging in various scientific and medical applications.
**Features**
1. Excellent fluorescent images with an infinite optical system.
2. LED illumination with a long lifespan of up to 50,000 hours.
3. No need for cooling systems or additional protection due to the cold light source.
4. Excitation wavelength of 465–476 nm with high signal-to-noise ratio (SNR).
5. Easy to use, no warm-up required.
6. Wide range of fluorescent filters available for different experimental needs.
**Application Areas**
The BS-2070F (LED) fluorescence microscopes are widely used in biological research, disease diagnosis, immune detection, and life science studies. They enable researchers to observe cellular absorption, transport, chemical distribution, and localization effectively.
**Technical Specifications**
| **Model** | BS-2070FB | BS-2070FT |
|-------------------|-----------|-----------|
| Optional System | Yes | Yes |
| Viewing Head | Binocular | Trinocular |
| Eyepiece | WF10×/20 | WF10×/20 |
| Objective | 4×, 10×, 40×, 100× | 4×, 10×, 40×, 100× |
| Nosepiece | Quadruple | Quadruple |
| Focusing Mechanism| Coaxial coarse and fine adjustment | Coaxial coarse and fine adjustment |
| Stage | Rectangular 216×150 mm | Rectangular 216×150 mm |
| Condenser | Abbe condenser NA1.25 | Abbe condenser NA1.25 |
| Illumination | LED 3W, adjustable brightness | LED 3W, adjustable brightness |
| Reflected Light Source | Blue excitation (BP460–490), Dichroic Mirror DM505, Barrier Filter BA515 | Green excitation (BP510–550), Dichroic Mirror DM570, Barrier Filter BA590 |
| Lamp | 3W LED (465–476 nm) | 3W LED (525–530 nm) |
| Immersion Oil | Fluorescent-free oil | Fluorescent-free oil |
| Dimensions & Weight | 38 cm × 26 cm × 51 cm, 9 kg | 38 cm × 26 cm × 51 cm, 9 kg |
**Optional Accessories**
Photo attachment, video attachment, polarization set, phase contrast kit.
**Note**: "Yes" indicates standard configuration; "Optional" means optional additions.
This microscope is designed for both laboratory and educational settings, offering flexibility, durability, and high-resolution imaging capabilities. Whether you're conducting basic cell analysis or advanced fluorescence experiments, the BS-2070F (LED) is a reliable and cost-effective choice.
Qing Sword
The Qing Sword, also known as the "Qing Dao" or "Qing Dynasty Sword," is a traditional Chinese weapon that originated during the Qing Dynasty (1644-1912). It is a type of straight, double-edged sword that was commonly used by the military and martial artists during this period.
The Qing Sword typically has a slightly curved blade with a length ranging from around 70 to 100 centimeters. The blade is made of high-quality steel and is known for its sharpness and durability. The hilt, or handle, of the sword is usually made of wood or bone and is often adorned with decorative elements such as carvings or metal fittings.
One distinctive feature of the Qing Sword is its guard, which is typically in the shape of a circular or oval ring. This guard not only protects the hand of the wielder but also provides balance and stability to the sword during combat. The pommel, or end of the hilt, is often shaped like a horse's hoof, representing the military association of the Qing Dynasty
Chinese Sword Qing, Qing dynasty sword, Qing jian sword
Ningbo Autrends International Trade Company , https://www.longquan-swords.com