New LightIR 10-135mm f/3.6 Motorized MWIR Zoom Imaging Lens

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HFOV [deg]
Features
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Overview

The Smallest and Lightest Continuous Zoom Lens Designed for MWIR 10μm VGA Detectors

The Ophir LightIR 10-135mm MWIR f/3.6 continuous zoom lens is a compact thermal imaging lens, optimized for 10μm pitch VGA FPA (focal plane array) detectors. It weighs only 250gr, which makes it 20% lighter than existing similar lenses. Its compact optic design significantly decreases the length and weight of the lens, and therefore, the overall size and weight of the optical system in which it is incorporated.

With its unparalleled combination of low-SWaP capabilities, detection range exceeding 11km, and a specialty coating to withstand harsh, humid and salty environments, the LightIR 10-135mm f/3.6 continuous zoom lens is an enabler for advanced drone, tactical UAV IR cameras, and micro/mini tactical payloads in the commercial, homeland security, and defense markets.

Key features:

Weight 250gr
Dimensions Ø46 x 86.4mm
Detection range 11.4km
Designed for MWIR 10μm pitch VGA detectors
Efficient compact optics design for max. volume use
Designed to withstand harsh environmental conditions
Ideal for mini/micro tactical payloads

See All Features

Products

		Compare	Model	Compatibility	sortOrder	rankScore	ranking	Drawings, CAD & Specs		Format	Pixel Pitch	Focal Length	F/#	Availability	Featured Item	Price		Brand
		New 680451-001 LightIR 10-135mm f/3.6 LightIR 10-135mm f/3.6, High Durability Contact Us	New 680451-001 LightIR 10-135mm f/3.6 LightIR 10-135mm f/3.6, High Durability	UNIVERSAL	0.0	1.0	0.0		0.0	640x512	10 µm	10-135mm	3.6	Contact Us	New			Ophir
		New 680451-002 LightIR 10-135mm f/3.6 LightIR 10-135mm f/3.6, Hard Carbon Contact Us	New 680451-002 LightIR 10-135mm f/3.6 LightIR 10-135mm f/3.6, Hard Carbon	UNIVERSAL	0.0	1.0	0.0		0.0	640x512	10 µm	10-135mm	3.6	Contact Us	New			Ophir

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HFOV [deg]

WFOV (10mm)

	Format
Pitch	640x512
10 µm	37.0º

NFOV (135mm)

	Format
Pitch	640x512
10 µm	2.67º

HFOV [deg]

WFOV (10mm)

	Format
Pitch	640x512
10 µm	37.0º

NFOV (135mm)

	Format
Pitch	640x512
10 µm	2.67º

Specifications

Type

Continuous Zoom
Focal Length

10-135mm
F/#

3.6
Cold Stop FPA Distance

12mm
Cold Stop Clear Aperture

Ø12mm
Back Focal Length

≥17mm in air
Minimum Focus Range

WFOV:5m;NFOV:50m
Nuc (by defocus)

Blur to 7mm diameter
Focus Mechanism

Motorized. Adjustable

Focus Time

<1 sec.
Zoom Mechanism

<4 sec.
Drive Voltage

12V
Current Consumption

< 0.5A average, 1.0A peak
Communication Interface

RS422
Operating Temperature Range

-32ºC to +75ºC
Storage Temperature Range

-54ºC to +85ºC
Sealing

IP67 front lens only
Wavelength Region

MWIR

Specifications

Type

Continuous Zoom
Focal Length

10-135mm
F/#

3.6
Cold Stop FPA Distance

12mm
Cold Stop Clear Aperture

Ø12mm
Back Focal Length

≥17mm in air
Minimum Focus Range

WFOV:5m;NFOV:50m
Nuc (by defocus)

Blur to 7mm diameter
Focus Mechanism

Motorized. Adjustable

Focus Time

<1 sec.
Zoom Mechanism

<4 sec.
Drive Voltage

12V
Current Consumption

< 0.5A average, 1.0A peak
Communication Interface

RS422
Operating Temperature Range

-32ºC to +75ºC
Storage Temperature Range

-54ºC to +85ºC
Sealing

IP67 front lens only
Wavelength Region

MWIR

Features

LightIR 10-135mm f/3.6 Detection, Recognition & Identification (DRI) Range

DRI ranges enable one to easily estimate the maximum range that an object can be either detected, recognized or identified. It is important to note that these estimates are based solely on geometrical parameters – the target size, distance, lens focal length and camera detector pixel size. Signal level, detector sensitivity, atmospheric conditions and other factors are not considered!

The calculations used here are based on the “Johnson Criteria”. According to the Johnson Criteria, the minimum resolution, pixels on target, required to achieve a 50% probability for an observer to discriminate an object are:

Detection: An object is present – 2 pixels on target (Lower Bar)
Recognition: discern the type of object, a human vs. a vehicle – 8 pixels on target (Middle Bar)
Identification: discern specific objects, a man vs. a woman, a car model – 12.8 pixels on target (Upper Bar)

Features

LightIR 10-135mm f/3.6 Detection, Recognition & Identification (DRI) Range

Detection: An object is present – 2 pixels on target (Lower Bar)
Recognition: discern the type of object, a human vs. a vehicle – 8 pixels on target (Middle Bar)
Identification: discern specific objects, a man vs. a woman, a car model – 12.8 pixels on target (Upper Bar)