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Optical Components / Visible & VIS–NIR

Objective lenses & optical eyepieces

Visible & VIS–NIR objective lenses and optical eyepieces.

Compare objective lenses for image formation and optical eyepieces for direct viewing or display-based systems. Select a configuration by wavelength, focal length, field of view and interface, then open its product page for full reference specifications. Model-specific low-light components include the KN902501 objective and KE902501 eyepiece.

Send a visible-optics RFQBrowse products

Visible & VIS–NIR imaging

Low-light and wide-angle objective lenses

Reference configurations cover fast-aperture low-light imaging, extended VIS–NIR response and ultra-wide scene coverage. Detector fit must be reconfirmed for every project.

KN902501 objective lens actual product photograph

KN902501Low-light observationOptical component

KN902501 25 mm F/1.23 Low-Light Objective Lens

A 25 mm optical objective component for handheld low-light observation systems, with F/≤1.23 aperture, a ≥40° field for a 17.5 mm image format and a weight of ≤41.2 g.

  • Focal length25 mm ±0.5 mm
  • F-number≤1.23
  • Field of view≥40°
  • Weight≤41.2 g
View full specifications
Model
KN902501
Optical function
Objective lens
Focal length
25 mm ±0.5 mm
F-number
≤1.23
Field of view
≥40° for a 17.5 mm image format
Lens material
Optical glass, including an aspheric element
Distortion
≤−4.56% at a 20° semi-field angle
Weight
≤41.2 g
Environmental reference
IP67; waterproof to 20 m for at least 2 hours

Open the KN902501 product page →Request this configuration →

25 mm Lightweight Low-Light Objective
Low-lightObjective lensCompact

25 mm Lightweight Low-Light Objective

Compact fast-aperture objective for a wide field and weight-sensitive optical assembly.

  • Focal length25 mm
  • F/#≤1.23
  • Sensor reference640 × 512 / 12 μm
  • Field of view≥40° for 17.5 mm image format
View full specifications
Focal length
25 mm
F/#
≤1.23
Sensor reference
640 × 512 / 12 μm
Field of view
≥40° for 17.5 mm image format
Distortion
Sign, magnitude and acceptance limit at 20° half field to be confirmed against the supplier drawing.
Weight
≤41.2 g
Sealing reference
Waterproof to 20 m for ≥2 h

Open the full product page →Request this configuration →

22.6 mm VIS–NIR Low-Light Objective
450–1000 nmLow-lightManual focus

22.6 mm VIS–NIR Low-Light Objective

Extended visible-to-near-infrared objective for 1080p low-light imaging.

  • Focal length22.6 mm
  • F/#1.3
  • Working wavelength450–1000 nm
  • Detector reference1920 × 1080 / 12 μm
View full specifications
Focal length
22.6 mm
F/#
1.3
Working wavelength
450–1000 nm
Detector reference
1920 × 1080 / 12 μm
Field of view
53.4° × 31.8°
Average transmission
≥94%
Distortion
2.45%
Focus
Manual
Weight
≤43 g
Dimensions
Φ26.4 × 38.83 mm
Operating / storage
−40 to +60 °C / −50 to +70 °C
Sealing reference
Front element IP67

Open the full product page →Request this configuration →

9.8 mm Ultra-Wide VIS–NIR Objective
480–950 nmUltra-wideManual focus

9.8 mm Ultra-Wide VIS–NIR Objective

Ultra-wide objective for large scene coverage in visible and near-infrared low-light systems.

  • Focal length9.8 mm
  • F/#2.4
  • Working wavelength480–950 nm
  • Detector reference1920 × 1080 / 12 μm
View full specifications
Focal length
9.8 mm
F/#
2.4
Working wavelength
480–950 nm
Detector reference
1920 × 1080 / 12 μm
Field of view
113.2° × 71.2°
Average transmission
≥94%
Distortion
−27%
Focus
Manual
Weight
≤60 g
Dimensions
Φ26 × 37.82 mm
Operating / storage
−40 to +60 °C / −50 to +70 °C
Sealing reference
Front element IP67

Open the full product page →Request this configuration →

Ocular optics

Eyepieces for direct viewing and OLED-based systems

Compare focal length, magnification, eye relief, exit pupil, display reference, diopter adjustment and mechanical interface.

KE902501 eyepiece actual product photograph

KE902501Low-light observationOptical component

KE902501 25 mm 10× Wide-Field Eyepiece

A 25 mm optical eyepiece component for handheld low-light observation systems, with 10× magnification, a ≥14 mm axial exit pupil and a ≥40° field for a 17.5 mm image format.

  • Focal length25 mm
  • Magnification10×
  • Axial exit pupil≥14 mm
  • Weight≤54 g
View full specifications
Model
KE902501
Optical function
Eyepiece
Focal length
25 mm
Magnification
10×
Axial exit-pupil diameter
≥14 mm
Field of view
≥40° for a 17.5 mm image format
Lens material
Optical glass, including an aspheric element
Distortion
≤−5.1% at a 20° semi-field angle
Weight
≤54 g
Environmental reference
IP67; waterproof to 20 m for at least 2 hours

Open the KE902501 product page →Request this configuration →

25 mm Wide-Field Eyepiece
EyepieceWide field20 m sealing

25 mm Wide-Field Eyepiece

Wide-field eyepiece using glass elements including an aspheric element.

  • Focal length25 mm
  • Axial exit-pupil diameter≥14 mm
  • Field of view≥40° for 17.5 mm image format
  • Lens materialGlass, including aspheric glass
View full specifications
Focal length
25 mm
Axial exit-pupil diameter
≥14 mm
Field of view
≥40° for 17.5 mm image format
Lens material
Glass, including aspheric glass
Distortion
Sign, magnitude and acceptance limit at 20° half field to be confirmed against the supplier drawing.
Weight
≤53.5 g
Sealing reference
Waterproof to 20 m

Open the full product page →Request this configuration →

28.8 mm Long-Eye-Relief Eyepiece
450–680 nm8.68×45 mm eye relief

28.8 mm Long-Eye-Relief Eyepiece

Large-format viewing eyepiece with diopter adjustment and long eye relief.

  • Focal length28.8 mm
  • Magnification8.68×
  • Eye relief45 mm
  • Exit pupilΦ6 mm
View full specifications
Focal length
28.8 mm
Magnification
8.68×
Eye relief
45 mm
Exit pupil
Φ6 mm
Working wavelength
450–680 nm
Display reference
1.03-inch OLED
Field of view
Φ40.4°
Distortion
−3.7% max
Diopter range
−5 to +5
Weight
≤138 g
Dimensions
Φ50 × 94.18 mm
Interface
M38 × 0.75-6g
Environment
−40 to +60 °C; IP67; 1000 g / 0.4 ms shock

Open the full product page →Request this configuration →

17.8 mm Compact 14× Eyepiece
480–650 nm14×Compact

17.8 mm Compact 14× Eyepiece

Compact high-magnification eyepiece matched to a 0.6-inch OLED reference display.

  • Focal length17.8 mm
  • Magnification14×
  • Eye relief18 mm
  • Exit pupilΦ8 mm
View full specifications
Focal length
17.8 mm
Magnification
14×
Eye relief
18 mm
Exit pupil
Φ8 mm
Working wavelength
480–650 nm
Display reference
1280 × 1024 / 9.3 μm, 0.6-inch OLED
Field of view
37.1° × 30.1°
Distortion
<2.3%
Diopter range
−5 to +5
Weight
≤42 g
Dimensions
Φ36 × 49 mm
Interface
M26 × 0.75-6g
Environment
−40 to +60 °C; IP67; 1000 g / 0.4 ms shock

Open the full product page →Request this configuration →

26 mm 9.6× Eyepiece
480–650 nm9.6×35 mm eye relief

26 mm 9.6× Eyepiece

Medium-magnification eyepiece with a 35 mm eye-relief reference configuration.

  • Focal length26 mm
  • Magnification9.6×
  • Eye relief35 mm
  • Exit pupilΦ7 mm
View full specifications
Focal length
26 mm
Magnification
9.6×
Eye relief
35 mm
Exit pupil
Φ7 mm
Working wavelength
480–650 nm
Display reference
1280 × 1024 / 9.3 μm, 0.6-inch OLED
Field of view
26.5° × 21.3°
Distortion
−4.77% max
Diopter range
−6.5 to +2
Weight
≤82 g
Dimensions
Φ42 × 35.8 mm
Interface
M38 × 0.75-6g
Environment
−40 to +60 °C; IP67; 1000 g / 0.4 ms shock

Open the full product page →Request this configuration →

25.6 mm Extended-Eye-Relief Eyepiece
480–650 nm9.8×≥60 mm eye relief

25.6 mm Extended-Eye-Relief Eyepiece

Long-eye-relief eyepiece for applications requiring increased viewing distance.

  • Focal length25.6 mm
  • Magnification9.8×
  • Eye relief≥60 mm
  • Exit pupilΦ5 mm
View full specifications
Focal length
25.6 mm
Magnification
9.8×
Eye relief
≥60 mm
Exit pupil
Φ5 mm
Working wavelength
480–650 nm
Display reference
1280 × 1024 / 9.3 μm, 0.6-inch OLED
Field of view
25.6° × 20.6°
Distortion
2.1% max
Diopter range
−5 to +4
Weight
≤100 g
Dimensions
Φ50 × 43.47 mm
Interface
M44 × 0.75-6g
Environment
−40 to +60 °C; IP67; 1000 g / 0.4 ms shock

Open the full product page →Request this configuration →

22 mm Eyepiece for 0.49-inch OLED
480–650 nm11.4×45 mm eye relief

22 mm Eyepiece for 0.49-inch OLED

Compact eyepiece reference for a 0.49-inch OLED viewing system.

  • Focal length22 mm
  • Magnification11.4×
  • Eye relief45 mm
  • Exit pupilΦ6 mm
View full specifications
Focal length
22 mm
Magnification
11.4×
Eye relief
45 mm
Exit pupil
Φ6 mm
Working wavelength
480–650 nm
Display reference
0.49-inch OLED
Field of view
25.2° × 19.2°
Distortion
2%
Diopter range
−5 to +5
Weight
To be confirmed
Dimensions
Φ51 × 36.7 mm
Interface
M34 × 0.75-6g
Environment
−40 to +60 °C; IP67; 1000 g / 0.4 ms shock

Open the full product page →Request this configuration →

25 mm Eyepiece for 0.39-inch OLED
480–650 nm10×Dual exit-pupil option

25 mm Eyepiece for 0.39-inch OLED

Eyepiece reference for a 0.39-inch OLED with two eye-relief/exit-pupil configurations.

  • Focal length25 mm
  • Magnification10×
  • Eye relief40 / 20 mm
  • Exit pupilΦ6 / Φ15 mm
View full specifications
Focal length
25 mm
Magnification
10×
Eye relief
40 / 20 mm
Exit pupil
Φ6 / Φ15 mm
Working wavelength
480–650 nm
Display reference
1024 × 768 / 7.8 μm, 0.39-inch OLED
Field of view
18° × 13.6°
Distortion
0.57% max
Diopter range
−6 to +2
Weight
≤83 g
Dimensions
Φ40.3 × 65.74 mm
Interface
M29 × 0.75-6g
Environment
−40 to +60 °C; IP67; 1000 g / 0.4 ms shock

Open the full product page →Request this configuration →

23 mm 10.8× Eyepiece for 0.65-inch OLED
480–650 nm10.8×50 mm eye relief

23 mm 10.8× Eyepiece for 0.65-inch OLED

Display eyepiece for a 0.65-inch OLED microdisplay with a 50 mm eye relief and a sealed M38 mount.

  • Focal length23 mm
  • Magnification10.8×
  • Eye relief50 mm
  • Exit pupilΦ6 mm
View full specifications
Focal length
23 mm ±3%
Magnification
10.8×
Working wavelength
480–650 nm
Display reference
0.65-inch OLED
Field of view
25.2° × 19.2°
Distortion
<2%
Eye relief
50 mm
Exit pupil
Φ6 mm
Diopter range
−5 to +5 SD
Back focal length
7.55 mm
Optical transmission
>95%
Weight
<145 g
Dimensions
Φ47 × 83 mm
Interface
M38 × 0.75-6g
Focusing torque
0.3 ±0.15 N·m
Environment
−40 to +60 °C; IP67; waterproof to 20 m for ≥2 h
Surface quality
MIL60-40
Compliance
RoHS 2.0

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22 mm 65 mm Eye-Relief Eyepiece
450–650 nm11.34×65 mm eye relief

22 mm 65 mm Eye-Relief Eyepiece

Long-eye-relief eyepiece for a 0.39-inch OLED reference display.

  • Focal length22 mm
  • Magnification11.34×
  • Eye relief65 mm
  • Exit pupilΦ6 mm
View full specifications
Focal length
22 mm
Magnification
11.34×
Eye relief
65 mm
Exit pupil
Φ6 mm
Working wavelength
450–650 nm
Display reference
1024 × 768 / 7.8 μm, 0.39-inch OLED
Field of view
20.6° × 15.5°
Distortion
−0.8% max
Diopter range
−5 to +5
Weight
To be confirmed
Dimensions
Φ54 × 80 mm
Interface
M34 × 0.75-6g
Environment
−40 to +60 °C; IP67; 1000 g / 0.4 ms shock

Open the full product page →Request this configuration →

Objective RFQ

Inputs for an imaging objective

  • Scene, working distance and required field coverage
  • Sensor array, pixel pitch and active area
  • Working band and illumination source
  • F/#, distortion, transmission and focus range
  • Mount, envelope, weight and environment

Eyepiece RFQ

Inputs for human-viewing optics

  • Display or image format and pixel pitch
  • Magnification and apparent field of view
  • Eye relief and exit-pupil requirement
  • Diopter range and interface thread
  • Sealing, shock, temperature and quantity

Visit or audit the selected factory.

Qualified B2B buyers can arrange a factory visit or supplier audit by appointment after the product and supplier route are confirmed.

Visible-optics contactsales@tuolango.com

Reference model names help us identify the starting point; the final drawing and quotation control delivery.

Which objective or eyepiece should we review?

Send the detector/display, band, FOV, mechanical interface and quantity.

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