Asio Lenses

Many years ago the infrared camera companies standardized the back working distance (BWD), stop location and F# for MWIR systems. The Asio line supports these imagers, and is designed to create an image size large enough to support the focal planes of the past and present. With the wide range of applications, this line has the largest selection available including single FOV, multi-FOV and microscopes. It attaches to the camera with a bayonet mount, and there are a number of optional accessories available.

Microscopic ObjectivesMicroscopic Objectives

For close inspection of small components using infrared imagery, Janos has designed a line of microscope objectives for mid-wave thermal imagers. The line includes magnifications of 1x, 2.5x, and 4x. The front objective section is interchangeable with the same “eyepiece” that mounts to the camera. Every effort was made to maximize the distance from the lens to the object being inspected. These lenses interface with the bayonet mount.

Please contact us for more information on these lens.

Focal Length

7mm

13mm

25mm

50mm

100mm

Part Number

40573-AA1

40486-AA1

40494-AA1

40495-AA1

40496-AA1

F#

2.3

2.3

2.3

2.3

2.3

Wavelength

3 – 5µm

3 – 5µm

3 – 5µm

3 – 5µm

3 – 5µm

Image Diagonal

21mm

21mm

21mm

21mm

21mm

Stop Size

11mm

11mm

11mm

11mm

11mmm

Stop Position

25.4mm

25.4mm

25.4mm

25.4mm

25.4mm

BWD

33.1mm

33.1mm

33.1mm

33.1mm

33.1mm

Flange to F.P.

39.4mm

39.4mm

39.4mm

39.4mm

39.4mm

Mount Type

B

B

B

B

B

Circular FOV (degrees) ***

110

75

45

23

11

Weight (g)

500

227

227

213

880

Min. Obj. Dist. **

30mm

50mm

200mm

500mm

1750mm

Focus Type

M

M

M

M

M

Transmission (typical)*

95%

92%

92%

92%

92%


Notes
:

*** Based on the listed Image Diagonal, FOV will vary depending on focal plane size.
** Closest an object can be focused in on.
* Over the primary waveband, 3 – 5µm.

Mount Type:

B = Bayonet Mount
M = Manual Focus
MT = Motorized Focus