90mm f/1.0 and 275mm f/1.2 Dual FOV Lenses for LWIR Thermal Camera

Code: 304-007

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Optical Parameters:

Focal Length	90mm/275mm	Calculated Average Transmission	>84%
F/#	1.0/1.2	Operating Temperature Range	-40℃ to +60℃
Operating Wavelength Range	8μm to 12μm	Minimum Focus Range	5m /20m
Coating on Front Surface Exposing to Air	DLC	Distortion (Diagonal FOV)	<1%

Mechanical Specifications:

Focusing Mechanism	Motorized	Installation Way	Flange
Weight	/	Flange Focal Distance	20mm
Materials of Lens Housing	Anodized aluminium	Connector	Refer to drawing
Max. Dimensions (Diameter x Length)	ɸ260x480	Sealing Grade	IP67

Electronics:

Zoom, focus mechanism	DC gear motor control	Zoom, focus position feedback	Encoder motor
Zoom, focus driving voltage	12V DC

FOV-Sensor Size:

FOV(H X V)	384x288	640x480
12μm	2.9° /0.96°	4.89°/1.6°
17μm	4.1° /1.3°	6.9°/2.2°
25μm	6.1° /2.0°

90mm/275mm

L-DF-90F1.0-275F1.2DualFOV

1.0/1.2

Motorized

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7-8 weeks