Metrologia Óptica

LCTR-M

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LCTR-M is a lens decentering measurement device. This instrument can calculate the "shift" and "tilt" of lens decentering from the lens R, allowing measurement of lenses with an aperture between approximately ø8 mm and ø120 mm.

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High accuracy
A high degree of accuracy up to 10" has been achieved. (However, instrument resolution differs depending on the lens R.) The measurement accuracy is further increased with a 3-step variable power system, enabling easy observation as well.)
Improved operability
A built-in variable power system has improved operability. Additionally, the adoption of a 3-point controller mechanism has drastically facilitated rotation of the lens or frame.
Alleviated operator's fatigue
The operator's fatigue involved in visual observation has been alleviated through the use of a video monitor.
Easy confirmation of working distance
A working distance can easily be confirmed by sliding the illuminator lens in accordance with a measured R.

High-accuracy Lens Decenter Measurement Device LCTR-M: Specifications
Optical System	Objective lens magnification	Low power 4.80x, middle power 12.20x, high power 30.74x (3-step variable power)
	Observation method	9-inch video monitor
	Illuminator	Illuminator lens slide system conforming to measuring R
Measurement resolution		10" (however, differs depending on the lens R)
Measurable R		±2R to ±600R (the range between ±0.5R and ±2R can be measured if a micro lens unit is added)
Focusing unit		Fine/coarse up/down movement focusing mechanism
Stage	Fixed	M stage (3-point roller), C stage (V-block)
	Replaceable	MU, CU and PU stages (dovetail-grooved)
Dimensions		475 (W) x 400 (D) x 575 (H) mm
Mass		28 kg (main unit)

Names of Stage Assembles
LCTR-M-M-1	Lens aperture: ø8 - ø30 mm
LCTR-M-C-1	Lens aperture: ø30 - ø90 mm
LCTR-M-CU-1	Lens aperture: ø30 - ø90 mm
LCTR-M-PU-1	Lens aperture: ø30 - ø120 mm
LCTR-M-MU-1	Lens aperture: ø8 - ø30 mm

* Use the model names above when placing an order.
* Measurement may not be performed depending on the lens shape.

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