BS-1008 adopts semi-apochromatic parallel optical imaging system, and uses advanced multi-layer coating technology, which perfectly correct the imaging on the edge of field of view, get high-resolution and high contrast images, and naturally restore the true colors of observed objects.

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-1008 is BS-1008A(does not have stop) and BS-1008B(has stop at main magnification), it has 0.7X to 5.6X zoom range and 1:8 zoom ratio. It is a high-quality precision Monocular Zoom Objective that provides high resolution and large depth of field.

1. Provide basic zoom objective BS-1008A with 0.7X~5.6X zoom range

2. Large optical zoom ratio: 1:8

3. Larger NA: 0.018-0.092 (When using 1x Auxiliary Lens)

4. Higher resolution: 18.6um-3.65um (When using 1x Auxiliary Lens)

5. Larger field of view: 0.99mm-31.74mm(Object plane)

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

7. Working distance: 37.5mm-160mm

8. Parfocal in zoom range

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

10. Compact size: 150 mm (length) × 40 mm (diameter)

11. Auxiliary Lens with 0.50x, 0.75x, 1.00x, 1.50x and 2.00x magnification (Optional)

12. TV Lens with 0.50x, 0.75x, 1.00x, 1.50x and 2.00x magnification (Optional)

13. Intensity adjustable LED Direct Ring Light (Optional)

14. Intensity adjustable LED Direct Ring Polarization Light (Optional)

15. Intensity adjustable LED coaxial illumination (Optional)

16. 45mm or 50mm Bracket Adapter (Optional)

The dimensions of BS-1008A with different light a) BS-1008A without light module; b) BS-1008A equipped with Direct Ring Light Module, c) BS-1008A equipped with Coaxial Light Module are showed as follows. The length of BS-1008A is 150.3mm, it is much shorter than most of the Monocular Zoom Objective in the market.

Dimensions of BS-1008A with different light

a)BS-1008 without light module; b)BS-1008 equipped with Direct Ring Light Module; c)BS-1008 equipped with Coaxial Light Module

BS-1008 is an ideal choice for most applications that require multiple magnifications or for those that prohibit continual manual refocusing. The applications of the BS-1008 are:

1. Machine vision
2. Small details inspection
3. Industrial inspection especially electronic components
4. Scientific research
5. Medical industry
6. Education industry

The specifications of BS-1008 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.

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. Max sensor format is 2/3″.

BS-1008-W100-TV050-A45, BS-1008-W100-TV075-A45 and BS-1008-W100-TV100-A45 photo (W100 indicates that BS-1008 is equipped with 1x auxiliary objective, TV050 is 0.5x TV lens, TV075 is 0.75x TV lens, and TV100 is 1.0x TV lens, A45 means the mounting adapter ring is 45mm. It is not difficult to find that the length of TV lens increases with the increase of TV lens magnification).

1. How to Configure BS-1008 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-1008

The available components are listed in Table 2, user can choose any part from the table.

Table 2 BS-1008’s Accessories and Its Functions

The package information of BS-1008 is as follows:

BS-1008 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:

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

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

The below table has listed the possible combination of the BS-1008 with Auxiliary Lens and TV Lens. Users can quickly decide the model they need to purchase according to their existing cameras, the required Working Distance (WD), the Primary Magnification (PMAG) or the diagonal field of view (FOV) of the observation object.

Model of BS-1008

The Working Distance of BS-1008 decreases with the increase of the magnification of the Auxiliary Lens, and its object NA or Zoom Range increases with the increase of the magnification of the Auxiliary Lens. Therefore, the Auxiliary Lens can be selected according to the Working Distance or Zoom Range (The real Zoom Range is also determined by the Auxiliary Lens).

The core of choosing TV Lens with different magnification is to match your own camera. From the table’s Zoom Range column, one can find with the increase of TV Lens’ magnification, the Zoom Range of the system increases in the same proportion, but it will not have a great effect on the optical resolution. In order to save money, it is recommended to choose a small size camera, such as 1/3″ camera.

Of course, in order to improve the signal-to-noise ratio or imaging quality of the camera, one can also choose a large size camera. Large size often means large pixel size, while large pixel size often means large dynamic range and high signal-to-noise ratio.