MITUTOYO - Varifocal : Lens TAGLENS | JSR GROUP เครื่องมืออุตสาหกรรม เครื่องมือช่าง เครื่องมือวัดละเอียด

TAGLENS

Ultra-deep focus eliminates the limitations of the conventional lens

Optical imaging can be complicated: observation target distance may vary due to a tilt or complex geometry, target may be in motion, and more than one target may be captured in the frame. In such situations, TAGLENS keeps the entire imaging volume in focus resolving the inevitable problem of the conventional optical systems. Omnifocal shooting provides improved productivity through enhanced imaging efficiency and reduced costs.

SPECIFICATIONS

TAGLENS-T1

Ultra-high-speed varifocal lens.A dedicated controller and a control software TAGPAK-C are offered as a standard product.

Video Microscope Unit VMU-T1

Microscope unit for configuring a varifocal optical system by incorporating the TAGLENS-T1, the objective lens and the camera.

Illumination light source: Pulsed Light Source (PLS)

In combination with TAGLENS-T1, this ultra-high-speed LED pulsed light source device captures focused images at the desired height as well as focus stacking, etc.
Using this product and TAGLENS software (TAGPAK-C), you can adjust the brightness and focus position.

*1 Lighting frequency: 70 kHz, Input pulse width: 80 ns Light guide: 2 m long, multicomponent glass fiber
*2 Width of emission pulse (Varies with input pulse width)
*3 SMB connector, 5V TTL

APPLICATIONS

TAGLENS gives prompt solutions to problems in inspection and observation. Some application examples using TAGLENS are introduced hereafter.

Inspection of electronic / precision components

Problem

・ Inspection time for electronic and precision parts, etc., needs to be reduced.
・ Equipment costs need to be reduced.

Solution

・A large depth of focus even in a high-magnification observation eliminates the need for focus
adjustment, improving the inspection efficiency.
・Eliminates the use of a mechanical auto focus drive unit, achieving cost saving of inspection devices.

Proposed Functions

・EDOF ・Auto Focus
・Multi Focus ・Focus Stacking ・TAGLENS-3D

Example: Semiconductor flaw inspection

Eliminates the need for focus adjustment, thus achieving effective inspection.

High-speed imaging

Problem

・Instantaneous shooting of a crash test results in defocusing of scattered chips.
・Completion with a single trial is needed because of destructive test.

Solution

・Allows shooting of deep images at a time, thus capturing all scattered chips.

Proposed Functions

・EDOF ・Focus Stacking

Example: Crash testThe high-speed shooting of a costly crash test is successfully completed at one try thanks to a large depth of focus.

Machine vision

Problem

・ Observation target heights and distances require the use of robots, leading to a complex and expensive system.

Solution

・Excellent focus expansion effects and long scan range.
・ Wide field of view
・ Realizes reduced system costs.

Proposed Functions

・Auto Focus ・Multi Focus ・Mixed Image
・TAGLENS-3D ・EDOF

Example: Inspection of large parts for defects

Distant observation is possible with a machine vision lens

Measurement of minute particles and floating matter

Problem

・The 3D positions of particles cannot be captured.
・The deeply-located particles cannot be focused sharply.
・Focus on floating matter in liquids is not possible.

Solution
・Allows all the particles spread in a wide range to come into focus.
・Enables the 3D positions of spatially-moving particles to be determined from each focusing position.
・TAGLENS can be used in microfluidic channels.

Proposed Functions

・Auto Focus ・Multi Focus ・Mixed Image
・TAGLENS-3D

Example: Observation of minute bubbles in glass / liquid

Absolutely allows observation of target objects with a large depth of focus.

On a robot

Problem

・It takes time to observe a workpiece from various angles with the camera mounted on a robot arm.

Solution

・The large depth of focus eliminates the need for focus adjustment and allows observation from various angles, thus contributing to time-saving of observation.

Proposed Functions

・EDOF ・Multi Focus ・Mixed Image

Example: Inspection using a robot.Allows inspection of a workpiece with the camera mounted on a robot arm.

ABILITY

TAGLENS, the breakthrough ultra-fast varifocal lens, will always keep your sample in focus, enabling the highest observation and measurement efficiency.

Improve inspection efficiency using TAGLENS with its ultra-wide focus range

EDOF (Extended Depth of Focus)

The focus range is variable without changing the camera position

Until now, imaging of objects with differing heights and depths was performed by taking multiple photographs while moving the camera vertically (Z-axis motion). In contrast, TAGLENS allows simultaneous probing of multiple heights or depths. Moreover, a captured image is displayed in real time.

Multi Focus

Up to 20 cross-sectional images at arbitrary heights can be captured simultaneously

・ A focused image in any specified Z-position can be captured without mechanical drive system within the observation range at an extended depth of focus.
・ Multiple images focused in given Z-positions can be captured.

TAGLENS-3D/Z-Adjust

3D shapes can be captured without mechanical action in the height direction

・ Select Z-Adjust with dedicated chart or Nominal Z-Adjust with theoretical values.
・ Using the height information obtained from Z-Adjust/Nominal Z-Adjust for TAGLENS-3D, point cloud data can be generated.
*Z-Adjust can be used only in combination with VMU-T1.
*3D shape data display/analysis software is to be prepared by the customer.

2D image composite from Z-stack and 3D image

Dedicated Chart for Z-Adjust

Auto Focus

High-speed focusing without mechanical action

・ Contrast peak position is determined from the images captured during the focal sweep.
・ After image acquisition, It takes only 10 ms to determine the focus position.
*With Mitutoyo demonstration system

Focus Stacking

All-focused images generated from multiple cross-sectional images

・ Contrast peak position is extracted and synthesized from images captured while changing focal position (image stack).
・ After obtaining the image stack, output to other companiesʼ focus stacking software is also possible.
*Image upload file type varies by company specifications

Target workpiece: Step 1 mm

All-focused image

Mixed Image

Up to 3 cross-sectional images can be mixed for display within one frame

・ Multiple height observation with TAGLENS at camera maximum frame rates.
・ Ideal for observation targets requiring different brightness, as multiple pulsed light sources can be exposed within one frame.