New SWIR & NIR 25-250mm f/5.5 (NFOV) f/4.0 (WFOV)

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HFOV [deg]
Features
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Overview

The Ophir SWIR & NIR 25-250mm f/5.5 (NFOV) f/4.0 (WFOV) continuous zoom lens is a first to market low-Size, Weight, and Power (SWaP), compact lens, for the newly introduced 5μm SXGA, as well as for 10μm SXGA, and 15μm VGA SWIR detectors. The SWIR & NIR zoom lens employs a unique mechanical and optical design, resulting in an all-around smaller and lighter unit with only 860gr in weight, and 224mm in length, making it approximately 60% lighter than similar existing SWIR lenses. The SWIR lens is also chromatically corrected to support a broader short-wave IR wavelength regime from 0.7-1.7μm and operates with minimal distortion. The SWIR & NIR 25-250mm f/5.5 (NFOV) f/4.0 (WFOV) continuous zoom lens presents an unrivaled combination of SWaP capabilities, detection range exceeding 26km, rugged design, and a unique coating able to withstand harsh, humid, and salty environments.

Interactive 3D Experience | Application Note

Continuous zoom in the 0.7-1.7 um SWIR regime
Designed for 5μm, 10μm SXGA & 15μm VGA SWIR detectors
Lightweight (<860 gr)
High spatial resolution and low distortion with detection range exceeding 26 km
Designed to withstand harsh environmental conditions

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Products

		Compare	Model	Compatibility	sortOrder	rankScore	ranking	Drawings, CAD & Specs		Availability	Featured Item	Price		Brand
		New 680471-002 SWIR & NIR 25-250mm f/5.5 (NFOV) f/4.0 (WFOV) NIR & SWIR band 0.7-1.7µm Contact Us	New 680471-002 SWIR & NIR 25-250mm f/5.5 (NFOV) f/4.0 (WFOV) NIR & SWIR band 0.7-1.7µm	UNIVERSAL	1.0	1.0	0.0		0.0	Contact Us	New
		New 680471-003 SWIR & NIR 25-250mm f/5.5 (NFOV) f/4.0 (WFOV) SWIR band 1.1-1.7µm Contact Us	New 680471-003 SWIR & NIR 25-250mm f/5.5 (NFOV) f/4.0 (WFOV) SWIR band 1.1-1.7µm	UNIVERSAL	1.0	1.0	0.0		0.0	Contact Us	New

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HFOV [deg]

WFOV (25mm)

	Format
Pitch	640x512	1280x1024
15μ	21.7°	NA
10μ	14.6°	28.7°
5μ	7.3°	14.6°

NFOV (250mm)

	Format
Pitch	640x512	1280x1024
15μ	2.2°	NA
10μ	1.5°	2.9°
5μ	0.7°	1.5°

HFOV [deg]

WFOV (25mm)

	Format
Pitch	640x512	1280x1024
15μ	21.7°	NA
10μ	14.6°	28.7°
5μ	7.3°	14.6°

NFOV (250mm)

	Format
Pitch	640x512	1280x1024
15μ	2.2°	NA
10μ	1.5°	2.9°
5μ	0.7°	1.5°

Specifications

Type

Continuous Zoom
Focal Length

25-250mm
F/#

WFOV:4.0;NFOV:5.5
Avg.Trns.

85%
Back Focal Length

34.47mm in air (±0.1)
Focus Mechanism

Motorized. Adjustable
Focus Range

WFOV:2m NFOV:20m
Focus Time

≤1sec
Weight

860gr
Minimum Focus Range

WFOV:2m;NFOV:20m

Dimensions

Ø65mmX224.1mm
Operating Temperature Range

-32ºC to +75ºC
Storage Temperature Range

-40ºC to +80ºC
Sealing

IP67 front element only
Zoom Time

≤5sec.
Communication Interface

RS422
Drive Voltage

12V
Current Consumption

<0.5A (max)
Wavelength Region

SWIR
Back Working Distance

17.5 mm

Specifications

Type

Continuous Zoom
Focal Length

25-250mm
F/#

WFOV:4.0;NFOV:5.5
Avg.Trns.

85%
Back Focal Length

34.47mm in air (±0.1)
Focus Mechanism

Motorized. Adjustable
Focus Range

WFOV:2m NFOV:20m
Focus Time

≤1sec
Weight

860gr
Minimum Focus Range

WFOV:2m;NFOV:20m

Dimensions

Ø65mmX224.1mm
Operating Temperature Range

-32ºC to +75ºC
Storage Temperature Range

-40ºC to +80ºC
Sealing

IP67 front element only
Zoom Time

≤5sec.
Communication Interface

RS422
Drive Voltage

12V
Current Consumption

<0.5A (max)
Wavelength Region

SWIR
Back Working Distance

17.5 mm

Features

SWIR & NIR 25-250mm f/5.5 (NFOV) f/4.0 (WFOV) 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)

SWIR NIR 25-250mm f/5.5 (NFOV) f/4 (WFOV): Low-SWaP, Long-Range, Cont. Zoom for 5µm pixel detectors

Features

SWIR & NIR 25-250mm f/5.5 (NFOV) f/4.0 (WFOV) 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)