3X Microscope Thermal LWIR Lenses

Code:306-004

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Optical Parameters:

Magnification	3x
N.A.(Numerical Aperture)*	0.55
(EFL)**	13.286mm
Wavelength	8μm~12μm
Detector	640x480-17μm
Image Size	10.88mm x 8.16mm
O.D. (Objective Distance)***	20mm (19mm~21mm)
Objective Size	3.63mm x 2.72mm
External Coating	AR
Average Transmittance	>92%
Distortion	Maximum D-FOV Distortion:1.5%

Notes:

Microscope doesn’t use f-number but uses N.A.
In Microscope optical system, EFL is not important.
O.D. is the distance from the objective plane to the first element surface.

Mechanical Specifications:

Dimensions	Length:55.11,Diameter:Ф39
Sealing	IP54
Mount	M34x0.75-6g
Back Flange Distance	13mm
Housing Material	Aluminum, Black anodized
Operation Temperature	-15°~ +50°
Storage Temperature	-25°~ +60°
Weight	-

Drawing:

Testing Results and Curves:

1. 20°MTF(@29lp/mm)

2.20°field curvature and distortion

3.Vignetting

4.Relative Illumination

3X Magnification

8μm-12μm

Length:55.11, Diameter:Ф39

13.286mm

AR

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