BestScope BS-2091 Inverted Biological Microscope
BS-2091 Inverted Biological Microscope is a high-level microscope which is specially designed for medical and health units, universities, research institutes to observe cultured living cells and tissues. With innovative infinite optical system and ergonomic design, it has excellent optical performance and easy to operate features. The microscope has adopted long life LED lamps as transmitted and fluorescent light source. The microscope has…
Model: BS-2091 | Viewing Head: Trinocular | Magnification: 40x-400x | Eyepiece: PL10×/22mm | Objective: 4X/NA=0.13, 10X/NA=0.25, 20X/NA=0.40, 40X/NA=0.65 | Transmitted Illumination: 5W LED | Stage: 215mm(W)*250mm(L) | Condenser: NA 0.3
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BS-2091 Inverted Biological Microscope
BS-2091 Inverted Biological Microscope is a high-level microscope which is specially designed for medical and health units, universities, research institutes to observe cultured living cells and tissues. With innovative infinite optical system and ergonomic design, it has excellent optical performance and easy to operate features. The microscope has adopted long life LED lamps as transmitted and fluorescent light source. The microscope has smooth and comfortable operation, intelligent energy conservation system, it could be the best assistant for your work.
Key Details
| Model | BS-2091 |
| Viewing Head | Trinocular |
| Magnification | 40x-400x |
| Eyepiece | PL10×/22mm |
| Objective | 4X/NA=0.13, 10X/NA=0.25, 20X/NA=0.40, 40X/NA=0.65 |
| Transmitted Illumination | 5W LED |
| Stage | 215mm(W)*250mm(L) |
| Condenser | NA 0.3 |
Features
1. Ergonomic viewing head.
360° rotatable viewing head with 50mm-75mm adjustable inter-pupillary distance, the eye-point can be raised 34mm directly by rotating the tube at 65mm IPD, more convenient and faster than traditional way.
2. Safe and efficient LED.
Both the transmitted and EPI-fluorescent illumination have adopted LED lamps, energy saving and long-lasting, low heat, the illumination is safe and stable. X-Y mechanical stage and various specimen holders are available.
3. Intelligent ECO system
Based on the concept of energy conservation and environment protection, BS-2091 has been designed with ECO system. The illumination power can be automatically on or off through infrared induction.
4. Marking objective is available.
New designed “marking objective” with ink inside for marking the target, it is very practical and effective to extract the target cell when observe and culture the living cells.
5. Smart phone connection kit.
Specially designed kit which can be inserted into the eyepiece tube for combining a smart phone on a microscope, keep record on time by taking photo or video.
6. Professional LED reflected fluorescence illumination system.
BS-2091F is equipped with a professional LED reflected fluorescence illumination system, and can be equipped with high-quality fluorescent objective lenses and fluorescent filters, which can meet various research tasks.
The fluorescence module has 4 positions. The standard configuration is blue and green fluorescence filters. Up to 3 sets of fluorescence filters can be installed.
Using high-brightness narrow-band LED lamps as the light source, the service life can reach more than 50,000 hours, which is safe, efficient, does not need to be replaced, and is more environmentally friendly and energy-saving.
BS-2091F inverted fluorescence microscope has added fluorescence filter status display, through the built-in sensor, the currently used fluorescent filter is displayed in front of the microscope, making research work more convenient and efficient.
7. Long working distance infinite plan achromatic objective and fluorescent objectives are available.
Long working distance infinite plan and phase contrast achromatic objective
Long working distance fluorescent infinite plan and phase contrast achromatic objective
Infinite plan Relief phase contrast achromatic objective
Application
BS-2091 inverted microscope can be used by medical and health units, universities, research institutes for observations of micro-organisms, cells, bacteria and tissue cultivation. They can be used for continuous observation of process of cells, bacteria grow and divide in the culture medium. Videos and images can be taken during the process. These microscopes are widely used in cytology, parasitology, oncology, immunology, genetic engineering, industrial microbiology, botany and other fields.
Specification
Item | Specification | BS-2091 | BS-2091F | |
Optical System | Infinite color corrected optical system | ● | ● | |
Viewing Head | 45° inclined trinocular head, 360° rotatable, fixed tube, interpupillary distance: 50-76mm, splitting ratio R:T=80:20 | ● | ||
45° inclined trinocular head, 360° rotatable, fixed tube, interpupillary distance: 50-76mm, splitting ratio R:T=0:100 or 100:0 | ● | |||
Eyepiece | High eyepoint wide field plan eyepiece PL10X/22mm, with adjustable diopter | ● | ● | |
High eyepoint wide field plan eyepiece PL10X/22mm, with micrometer and adjustable diopter | ○ | ○ | ||
High eyepoint wide field plan eyepiece PL15X/16mm, with adjustable diopter | ○ | ○ | ||
Objective | Infinite Long Working Distance Plan Achromatic Objectives | 4X/NA=0.13, WD=10.75mm | ○ | ○ |
10X/NA=0.25, WD=7.45mm | ○ | ○ | ||
20X/NA=0.40, WD=6.92mm | ○ | ○ | ||
40X/NA=0.65, WD=2.74mm | ○ | ○ | ||
60X/NA=0.70, WD=1.28mm | ○ | ○ | ||
Infinite Long Working Distance Plan Achromatic Positive Phase Contrast Objectives | 4X/NA=0.13, WD=10.75mm | ● | ○ | |
10X/NA=0.25, WD=7.45mm | ● | ○ | ||
20X/NA=0.40, WD=6.92mm | ● | ○ | ||
40X/NA=0.65, WD=2.74mm | ● | ○ | ||
Infinity Long Working Distance Plan Fluorescence Objectives | 4X/NA=0.13, WD=18.95mm | ○ | ● | |
10X/NA=0.30, WD=7.27mm | ○ | ● | ||
20X/NA=0.45, WD=6.03mm | ○ | ○ | ||
40X/NA=0.65, WD=1.79mm | ○ | ○ | ||
60X/NA=0.75, WD=1.28mm | ○ | ○ | ||
Infinity Long Working Distance Plan Semi-Apochromatic Positive Phase Contrast Fluorescence Objectives | 20X/NA=0.45, WD=6.12mm | ○ | ● | |
40X/NA=0.65, WD=1.79mm | ○ | ● | ||
Infinity Long Working Distance Plan Achromatic Relief Phase Contrast Objectives | 4X/NA=0.13, WD=10.75mm | ○ | ○ | |
10X/NA=0.25, WD=7.45mm | ○ | ○ | ||
20X/NA=0.40, WD=6.92mm | ○ | ○ | ||
40X/NA=0.65, WD=2.74mm | ○ | ○ | ||
Marking lens | Marking lens | ○ | ○ | |
Nosepiece | Inward Quintuple Nosepiece | ● | ● | |
Condenser | N.A. 0.3 long working distance condenser, WD=72mm, detachable | ● | ||
N.A. 0.3 long working distance condenser, WD=72mm, with light shield, detachable, used with BS-2091F | ● | |||
XDCD 0.3 condenser phase adjustable sliding plate, with two centering handles | ● | ● | ||
4X relief phase contrast adjustable sliding plate, used with 4X infinity LWD plan achromatic relief phase contrast objective and BS-20910024 condenser | ○ | |||
10X, 20X, 40X relief phase contrast adjustable sliding plate, used with 10X, 20X, 40X infinity LWD plan achromatic relief phase contrast objective and BS-20910024 condenser | ○ | |||
Microscope Body | Biological transmitted frame. | ● | ||
Biological transmitted & reflected frame. | ● | |||
Stage | Fixed stage, stage size: 215mm(W)*250mm(L) | ● | ● | |
Attachable mechanical ruler, 215mm(W)*250mm(L), moving range: 120mm(X)*80mm(Y). The rectangular holder with rectangular groove of 128mm (X)*86mm (Y), with a spacer | ○ | ● | ||
Attachable mechanical ruler, 215mm(W)*250mm(L), moving range: 120mm(X)*80mm(Y), can support both cell culture flasks and 96-well plates simultaneously | ○ | ○ | ||
Extension stage, used to extend the stage | ○ | ● | ||
Φ35 Petri dish holder | ● | ● | ||
Glass slide holder (Φ54mm and 26.5mm*76.5mm) | ○ | ● | ||
Terasaki holder (Φ65mm and 56mm*81.5mm) | ○ | ● | ||
Glass plate | ● | ● | ||
Metal plate (kidney type) | ○ | ● | ||
Metal plate (Φ25mm) | ● | ○ | ||
Metal plate (Φ12mm) | ○ | ○ | ||
The rectangular holder with circular groove of Φ90mm, with a spacer, only used with BS20910026 | ○ | ○ | ||
Focusing | Coaxial Coarse and Fine Adjustment, tension adjustment knob, Fine Division 0.002mm, Fine stroke 0.2mm per rotation, Coarse stroke 37.5mm per rotation. Moving Range: 9mm, focal plane up 6.5mm, down 2.5mm | ● | ● | |
EPI-Fluorescent Attachment | Four channel LED fluorescent illuminator, including 385nm/470nm/560nm three LED light source. | ● | ||
UV1 band pass filter LED fluorescent module, EX: AT375/28X, Φ25mm, BS: AT415DC, 25.5*36*1mm, EM: AT460/50M, Φ25mm, for LED fluorescent lamp with a center wavelength of 385nm | ○ | |||
UV1 band pass filter LED fluorescent module, EX: 375/28, Φ25mm, BS: 415, 25.7*36*1mm, EM: 460/50, Φ25mm, for LED fluorescent lamp with a center wavelength of 385nm | ○ | |||
B1 band pass filter LED fluorescent module, EX: AT480/30X, Φ25mm, BS: AT505DC, 25.5*36*1mm, EM: AT535/40M, Φ25mm, for LED fluorescent lamp with a center wavelength of 470nm | ○ | |||
B1 band pass filter LED fluorescent module, EX: 480/30, Φ25mm, BS: 505, 25.7*36*1mm, EM: 535/40, Φ25mm, for LED fluorescent lamp with a center wavelength of 470nm | ● | |||
G1 band pass filter LED fluorescent module, EX: AT560/40X, Φ25mm, BS: AT600DC, 25.5*36*1mm, EM: AT635/60M, for LED fluorescent lamp with a center wavelength of 560nm | ○ | |||
G1 band pass filter LED fluorescent module, EX: 560/40, Φ25mm, BS: 595, 25.7*36*1mm, EM: 635/60, for LED fluorescent lamp with a center wavelength of 560nm | ● | |||
Eyes protective plate, used to prevent harm from fluorescent light | ● | |||
Filter | Green filter (Φ45) | ● | ● | |
LBD filter (Φ45), only for halogen lamps | ○ | ○ | ||
Cell Phone Adapter | Cell phone adapter (used to connect to eyepiece) | ○ | ○ | |
Cell phone adapter (used to connect to trinocular tube, include eyepiece) | ○ | ○ | ||
C-mount Adapter | 0.35X C-mount adapter, adjustable focus, not available for fluorescence observation | ○ | ○ | |
0.5X C-mount adapter, adjustable focus | ○ | ○ | ||
0.65X C-mount adapter, adjustable focus | ○ | ○ | ||
1X C-mount adapter, adjustable focus | ○ | ○ | ||
Digital eyepiece interface | ○ | ○ | ||
Other Accessories | Telescope (Φ30) | ● | ● | |
Internal hexagonal Spanner M3 | ● | ● | ||
Internal hexagonal Spanner M4 | ● | ● | ||
Note: ● Standard Outfit, ○ Optional
Specifications for BestScope BS-2091 Inverted Biological Microscope
| Manufacturer | BestScope |
