Autofocus lenses for LMK Imaging Photometry
Electronic focus lenses provide dynamic focusing capabilities under software control, reducing manual setup, improving repeatability, and enabling flexible measurement geometries in automated systems. TechnoTeam’s electronic focus lenses integrate seamlessly with the LMK LabSoft to simplify optical calibration and error detection.
Bayonet Mount & Electronic Contact Interface
LMK 6-12 and LMK 6-30 cameras feature a novel bayonet lens mount interface with electronic contacts. This configuration allows:
- Automatic lens ID recognition via serial number
- Focus operation and control via software interfaces
- Validation of initialized lens configuration vs calibration file data (with warning if mismatch)
Selecting the Right Autofocus Lens
When choosing a lens, consider:
- Free working distance between lens and test subject or measurement plane
- Size and extent of the test object or display under test
- Required spatial image field resolution and field of view
- Luminance or brightness level and aperture requirements
- Calibration accuracy and tolerance limits
Our experts can help define the optimal lens configuration for your measurement system.
Integration with LMK Systems
Autofocus lenses integrate seamlessly with LMK imaging photometers and the control is embedded in the LabSoft software among other software interfaces. Lens serial ID and calibration file data are checked automatically, with mismatches flagged to the operator. Last lens focus settings are stored per lens in the software, ensuring consistency and repeatability across measurement sessions.
Autofocus lenses for the LMK 6-12
The following electronically controllable lenses with fixed focal length and fixed aperture are available for the LMK 6-12 and LMK 6-12 color.
| Lens type | TT AF 14 | TT AF 24 | TT AF 50 | TT AF 85 | TT AF 135 |
|---|---|---|---|---|---|
| Focus type | HSM | STM | STM | USM | USM |
| Focal length | 14 mm | 24 mm | 50 mm | 85 mm | 135 mm |
| Measuring distance | > 210 mm | > 160 mm | > 330 mm | > 830 mm | > 855 mm |
| Min. object field (H × V) | 90 mm × 65 mm | 56 mm × 40 mm | 62 mm × 45 mm | 110 mm × 80 mm | 70 mm × 51 mm |
| Field of view (H × V) | ≈ 53° × 40° | ≈ 32° × 24° | ≈ 16° × 12° | ≈ 9.0° × 6.5° | ≈ 6.0° × 4.5° |
| Lens length | 155 mm | 50 mm | 65 mm | 97 mm | 140 mm |
| TT AF 14 | Focus type: HSM Focal length: 14 mm Measuring distance: > 210 mm Min. object field (H × V): 90 mm × 65 mm Field of view (H × V): ≈ 53° × 40° Lens length: 155 mm |
| TT AF 24 | Focus type: STM Focal length: 24 mm Measuring distance: > 160 mm Min. object field (H × V): 56 mm × 40 mm Field of view (H × V): ≈ 32° × 24° Lens length: 50 mm |
| TT AF 50 | Focus type: STM Focal length: 50 mm Measuring distance: > 330 mm Min. object field (H × V): 62 mm × 45 mm Field of view (H × V): ≈ 16° × 12° Lens length: 65 mm |
| TT AF 85 | Focus type: USM Focal length: 85 mm Measuring distance: > 830 mm Min. object field (H × V): 110 mm × 80 mm Field of view (H × V): ≈ 9.0° × 6.5° Lens length: 97 mm |
| TT AF 135 | Focus type: USM Focal length: 135 mm Measuring distance: > 855 mm Min. object field (H × V): 70 mm × 51 mm Field of view (H × V): ≈ 6.0° × 4.5° Lens length: 140 mm |
Autofocus lenses for the LMK 6-30
The following electronically controllable lenses with fixed focal length and fixed aperture are available for the LMK 6-30 and LMK6-30 color.
| Lens type | TT AF 14 | TT AF 24 | TT AF 50 | TT AF 85 | TT AF 135 |
|---|---|---|---|---|---|
| Focus type | HSM | USM | USM | USM | HSM |
| Focal length | 14 mm | 24 mm | 50 mm | 85 mm | 135 mm |
| Measuring distance | > 210 mm | > 235 mm | > 425 mm | > 825 mm | > 860 mm |
| Min. object field (H × V) | 145 mm × 106 mm | 125 mm × 93 mm | 144 mm × 107 mm | 173 mm × 129 mm | 109 mm × 82 mm |
| Field of view (H × V) | ≈ 73° × 58° | ≈ 50° × 38° | ≈ 24° × 18° | ≈ 15° × 11° | ≈ 9.6° × 7.1° |
| Lens length | 155 mm | 112 mm | 92 mm | 97 mm | 140 mm |
| TT AF 14 | Focus type: HSM Focal length: 14 mm Measuring distance: > 210 mm Min. object field (H × V): 145 mm × 106 mm Field of view (H × V): ≈ 73° × 58° Lens length: 155 mm |
| TT AF 24 | Focus type: USM Focal length: 24 mm Measuring distance: > 235 mm Min. object field (H × V): 125 mm × 93 mm Field of view (H × V): ≈ 50° × 38° Lens length: 112 mm |
| TT AF 50 | Focus type: USM Focal length: 50 mm Measuring distance: > 425 mm Min. object field (H × V): 144 mm × 107 mm Field of view (H × V): ≈ 24° × 18° Lens length: 92 mm |
| TT AF 85 | Focus type: USM Focal length: 85 mm Measuring distance: > 825 mm Min. object field (H × V): 173 mm × 129 mm Field of view (H × V): ≈ 15° × 11° Lens length: 140 mm |
| TT AF 135 | Focus type: HSM Focal length: 135 mm Measuring distance: > 860 mm Min. object field (H × V): 109 mm × 82 mm Field of view (H × V): ≈ 9.6° × 7.1° Lens length: 140 mm |
Contact & Request a Quote
For custom autofocus lens configurations, integration advice, or detailed measurement planning, please contact TechnoTeam to request a quote or consultation.
- Type:
- Optical component
- Applications:
- Architecture Automotive Aviation Display Human Centric Lighting Infrastructure Light sources & luminaires
- Measurands:
- Color measurement Light measurement
- Tasks:
- Automation & Industry Development & Industry Science & Research