BestScope BS-2091 Infinite Color Corrected Optical System PL10X/22mm N.A. 0.3 Coaxial Coarse LED Inverted Biological Microscope

• Customization: Available
• Warranty: 3 Years
• Magnification: 40X-400X
• Model NO.: BS-2091
• Type: Biological
• Number of Cylinder: ≥Three
• Mobility: Desktop
• Stereoscopic Effect: Without Stereoscopic Effect
• Kind of Light Source: Ordinary Light
• Shape: Cylindrical Shaped Lens
• Usage: Teaching, Research
• Principle: Optics
• Principle of Optics: Infinite Color Corrected Optical System
• Optical System: Infinite color corrected optical system
• Eyepiece: PL10X/22mm, with adjustable diopter
• Objective: 4X/10X/20/40X
• Nosepiece: Inward Quintuple Nosepiece
• Condenser: N.A. 0.3 long working distance condenser, WD=72mm
• Stage: Glass plate, Metal plate
• Focusing: Coaxial Coarse and Fine Adjustment
• Illumination: 5W LED
• Transport Package: Standard Export Carton with Strong Sponge
• Trademark: BestScope
• Origin: China
• Production Capacity: 1000/Month

Product Description

                                                           BS-2091                                                                                                          BS-2091F

Introduction

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.
 

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. 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.

6. 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.
 

7. Long working distance infinite plan achromatic objective and fluorescent objectives are available

        Long working distance infinite plan                  Long working distance fluorescent infinite plan                Infinite plan Relief phase contrast
    and phase contrast achromatic objective                 and phase contrast achromatic objective                                 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	○	*
	Marking lens	Marking lens	○	○
Nosepiece	Inward Quintuple Nosepiece		*	*
Condenser	N.A. 0.3 long working distance condenser, WD=72mm, detachable		*	*
	XDCD 0.3 condenser phase adjustable sliding plate, with two centering handles		*	*
Microscope Body	Biological transmitted frame. External wide voltage system, input 100-240V, output 12V/5A. 5W LED (cold or warm color optional, cold color temperature 4750K-5500K, warm color temperature 2850K-3250K) center set, brightness adjustable, with light brightness indicator and infrared sensor.		*
	Biological transmitted & reflected frame. External wide voltage system, input 100-240V, output 12V/5A. Transmitted & reflected illumination is continuously adjustable and independently controlled, with light brightness indicator, with infrared sensor, with LED fluorescent indicator light. Transmitted illumination (cold or warm color optional, cold color temperature 4750K-5500K, warm color temperature 2850K-3250K), center set.			*
Stage	Attachable mechanical stage, moving range: 120mm(X)*80mm(Y), stage size: 215mm(W)*250mm(L)		○	*
	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)		○	○
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, for LED fluorescent lamp with a center wavelength of 385nm			○
	B1 band pass filter LED fluorescent module, for LED fluorescent lamp with a center wavelength of 470nm			*
	G1 band pass filter LED fluorescent module, 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
 

System Diagram

Sample Images