BS-1210 series Monocular Zoom Microscope is an ideal choice for machine vision, industrial inspection, scientific research and education. The design is based on the bilateral parallel light path principle and the modular design concept, with superior optical performance and strong compatibility.

For applications that require different magnification, Auxiliary Lens or infinity objectives with different magnification can be attached to the front end of the Middle Zoom Module.

For application that require different sensor size, TV Lens with different magnification can be attached to the back end of the Middle Zoom Module.

The basic module of BS-1210 is BS-1210A (without click stop) and BS-1210B (with click stop at main magnifications), it has 0.6X to 6.0X zoom range and 1:10 zoom ratio. It is a high-quality precision Monocular Zoom Objective that provides high resolution and large depth of field.

The main features are shown below:

1.Provide basic zoom objective BS-1210A with 0.6X~6.0X zoom range.

2.Large optical zoom ratio: 1:10.

3.Larger NA: 0.015-0.09 (When using 1.00x Auxiliary Lens).

4.Higher resolution: 18.3um-3.1um (When using 1.0X Auxiliary Lens).

5.Larger field of view: 1.19mm-57.14mm (Object plane).

6.Larger sensor size: 2/3” (When using 1X TV Lens).

7.Working distance: 56mm-248mm.

8.With adjustable BFL, parfocal in zoom range.

9.With adjustable center, the image center remains unchanged from 6.0x to 0.6x.

10.Compatible with infinity objectives (both biological and metallographic).

11.Compact size: 194 mm (length)*40 mm (diameter).

12.Auxiliary Lens with 0.35X, 0.50X, 0.75X, 1.00X, 1.50X magnification (Optional).

13.TV Lens with 0.50X, 0.75X, 1.00X magnification (Optional).

14.Brightness adjustable LED Direct Ring Light (Optional).

15.Brightness adjustable LED Direct Ring Polarization Light (Optional).

16.Brightness adjustable LED coaxial illumination (Optional).

17.LED Transmissive Light (Optional).

18.45mm or 50mm Bracket Adapter (Optional).

The specifications of BS-1210 with different Auxiliary Lens and TV Lens are shown in Table 1. Auxiliary Lens and TV Lens with 1.0x are listed in the left-up cell. Its data is the basis of the other parameters in the whole table.

Table 1 BS-1210A/B and Its Extensions

WD: Working Distance;

PMAG: Primary Magnification;

FOV: Field of View in the Object side;

NA: Numerical Aperture;

Note: Infinity corrected objectives limit system’s usable zoom range due to uneven illumination.

How to Configure BS-1210 Monocular Zoom Objective

(1) Confirm the possible range of 1) FOV and 2) Working Distance in the object space to choose the Auxiliary Lens.

(2) Choose the M26x0.705 to M20x0.705 Objective Adapter, if the M20x0.705 infinity objective is used.

(3) Confirm the camera Image Area Size, it can be 1) Sensor Size (1/x in inch), 2) Image Diagonal Length, 3) Image Width or 4) Image Height to choose the TV Lens.

(4) Choose the 45mm or 50 mm adapter according to the diameter of the hole in the bracket.

(5) Choose the LED Direct Ring Light Module for the reflective illumination.

(6) Choose the Coaxial Light Module if coaxial illumination is required.

(7) Choose the Transmitted Light Module if Transmitted illumination is required.

(8) Choose the Camera Module.

2.Configuration of BS-1210

The available components are listed in Table 1, user can choose any part from the table.

Table 1 BS-1210’s Accessories and Its Functions

Auxiliary Lens Module

TV Lens Module

The BS-1210 main body consists of Auxiliary Lens Module, Middle Zoom Module and TV Lens Module.

These 3 modules comprise the main Monocular Zoom Objective. User can choose different Auxiliary Lens and TV Lens to satisfy the specific requirement.

To get good illumination and ensure the image quality, LED Direct Ring Light Module (Optional) or Coaxial Light Module (Optional) should be chosen according to the application.

To get good and stable support, the Bracket Adapter Module should be carefully chosen.

Finally, to form the Video Monocular Zoom Objective, Camera Module (Optional) should be chosen.

The Adapter Rings and their relationship with the Bracket are shown following.

BS-1210 Adapter Ring for the Bracket

The Basic and Optional Modules of the Monocular Zoom Objective

BS-1120 is an ideal choice for most applications that require multiple magnifications or for those that prohibit continual manual refocusing. The applications of the BS-1120 are machine vision, small details inspection, industrial inspection especially electronic components, scientific research, medical industry and education industry.

BS-1210A+BS-1008DRL (LED Direct Ring Light Module) +HDMI Camera+ Screen

The dimensions of BS-1210A with different light a) BS-1210A without light module; b) BS-1210A equipped with Direct Ring Light Module, c) BS-1210A equipped with Coaxial Light Module are showed as follows. The length of BS-1210A is 194mm.

Dimensions of BS-1115A with different light

The package information of BS-1210 is as follows:

BS-1210 Main Body, including Auxiliary Lens Module, Middle Zoom Module, TV Lens,

Camera Adapter Tube and Bracket Adapter

The package information of BS-1008DRL is as follows:

The package information of BS-1008DRPL is as follows:

BS-1008DRPL, including LED Direct Ring Polarization Light and Power Adapter

The package information of Coaxial Light Module is as follows:

BS-1008 Coaxial Light Module, including BS-1008CL (Coaxial Light Adapter),

BS-1008SL (LED Spot Light) and Power Adapter

Pictures of steel ruler taken with BS-1210A under LED Direct Ring Light illumination.

Left: 0.6X, middle: 3.0X, right: 6.0X

Pictures of iPhone screen taken with BS-1210A.

Left: 0.6X, middle: 3.0X, right: 6.0X