Telecentric Lens - Mvotem Optics

MiniLED Inspection

MINI LED

Inspection Requirements

Mini LED backlight is an important innovation direction in the path of LCD technology, which can significantly enhance the number of backlight partitions of display panels and improve display brightness and contrast.
Generally speaking, Mini LED refers to 100~300 micron size LED chips, with small volume and large overall usage, which need to realize batch imaging inspection.

The Solution

Fine Tuning Coaxial Zoom Lens

The zoom lens used in this optical solution has a built-in trim and coaxial light system, in addition to the lower end of the lens with a ring light universal interface.

With modular accessories, the magnification can widely cover 0.09-180x optical magnification, and the magnification fixation can be customized.

The repeatability is up to 1μm with minimal center shift.

H=9.3mm

V=6.95mm

1. In order to be able to see the Mini LED chip, magnification is required.

At a magnification of 0.52x, the long-edge field of view reaches 9.3mm and the short-edge field of view reaches 6.95mm.

Within this field of view size, the surface of a single Mini LED chip is clearly imaged, and a larger number of chips can be detected simultaneously.

H=1.45mm

V=1.1mm

Within that field of view size, the surface of a single Mini LED chip is clearer and smudges can be seen, but the number of chips that can be detected simultaneously is significantly reduced.

The two magnifications of the chip imaging effect and field of view meet the needs of the customer, and the customer can choose flexibly according to the different requirements for inspection quality and speed.

The working distance of the optical solution used for inspection is 120mm, and the working distance after adding the ring light source is 95mm, which also leaves a relatively loose space for the device to move.

Glass Tube——Blot Inspection

case share

Glass Tube

Inspection Requirements

This test product is made of glass and needs to be tested for dirty glass appearance.

The Solution

Telecentric Lens: HR

1. Infinitely long optical system that virtually eliminates chromatic aberrations and distortions for excellent picture quality.
2. Available in various magnifications, 40~220mm ultra-long working distance range for customization.
3. Excellent optical design, telecentricity less than 0.2°, aberration less than 0.3%.
4. Telecentric lens imaging is generally darker and needs to be used with a light source.

The imaging is clear and the dirt is easy to be identified.

The Lighting Source

Backlight is a flat panel light source, optimally designed LED arrays distributed at the bottom of the light source. The backlight passes through the special diffusion plate, which is 50% brighter than the side light guide.

Cylindrical Objects——Defects Inspection

case share

Cylinder Object

missing material blot blot

Inspection Requirements

The test is a white cylinder object, requiring simultaneous detection of dirt and defects on the outer surface, inner surface and bottom. The overall detection speed of at least 150 pcs / min.

The Solution

Pinhole Lens: MV2818-2MCS

1. The object can be achieved from the outside to detect the inside cavity, and there's no need to place an optical probe in the cavity, reducing the risk.

2. This lens can inspect object with different shapes and sizes.

3. Wide field of view angle in the appropriate perspective with the lens to unfold the product surface, clearly display its characteristics.

1. Black spots show the defects on the surface, which are marked with red.

2. Small defects can be identified as long as they are visible on the picture

3. Side inspection by four stations simultaneously

4. Bottom defects

Controller

Lighting

[MPA Series]

Analog light source controller, is capable of stepless adjustment which controls the brightness through adjusting the current.

The KPA series is divided into 2-channel and 4-channel type, and each channel can precisely adjust the light source.

[MPD Series]

Digital light source controller, supports RS232 communication serial protocol.

The 255 levels of brightness can be controlled by programming, in case that the brightness changes due to mis-operation.

STRUCTURE

MPA-24S-2C

Contact for more info.

SPECIFICATIONS

MPA Series

Input Voltage

Output Voltage

Total Output

Current

per port

Trigger

Delay of trigger

Port

PDF

MPA-24S-2C

AC 88~264V

DC 24V

20W

400mA

DC 5~24V

≤80us

2 ports

MPA-24S-4C

AC 88~264V

DC 24V

40W

400mA

DC 5~24V

≤80us

4 ports

MPA-5/24S-4C

AC 88~264V

DC 5/24V

40W

400mA

DC 5~24V

≤80us

4 ports

MPA-5S-2C

AC 88~264V

DC 5V

20W

400mA

DC 5~24V

≤80us

2 ports

MPA-5S-4C

AC 88~264V

DC 5V

40W

400mA

DC 5~24V

≤80us

4 ports

MPD Series

Input Voltage

Output Voltage

Total Output

Current

per port

Trigger

Delay of trigger

Port

PDF

MPD-24S-2C

AC 88~264V

DC 24V

20W

400mA

DC 5~24V

≤80us

2 ports

MPD-24S-4C

AC 88~264V

DC 24V

40W

400mA

DC 5~24V

≤80us

4 ports

MPD-5/24S-4C

AC 88~264V

DC 5/24V

40W

400mA

DC 5~24V

≤80us

4 ports

MPD-5S-2C

AC 88~264V

DC 5V

20W

400mA

DC 5~24V

≤80us

2 ports

MPD-5S-4C

AC 88~264V

DC 5V

40W

400mA

DC 5~24V

≤80us

4 ports

Other customized sizes, please contact us.

FAQ

How long does your led light last?

Usually 30000 to 50000 hours, and it depends on ambient temperatures.

What's the wavelength of the color?

Red: 625 nm
Green: 525 nm
Blue: 470 nm
White: 7000 k
Infrared: 850 nm
Ultraviolet: 365 -395 nm

What are the optional accessories?

Diffusely reflecting plateï¼›
Polarizerï¼›
Extension cableï¼š 2 m and 5m.

What's the best operation environment of the lights?

Temperature: 0 to 50 degree ;
Humidity: 20 to 85%, No condensing

CUSTOMER SUPPORT

Mvotem offers 1 year warranty and FREE technical support. Customized designs are always welcome for special applications.

SEND INQUIRY NOW!

Ultra MF Series -Dualvision Coaxial Illuminator

Customized Lens

MF coaxial illuminator

MF Coaxial illuminator

New Coaxial Illuminator is now available!

Two options of magnification: 1X and 2X, would meet the need of special material imaging.

Designed for NIR&NUV especially.

Download catalogue as below for more details:

DOWNLOAD

INQUIRY

Features
system
ATTACHMENTS
specifications
CASES

1. Excellent optical design with long distance . No distorted view , no color difference, thus applicable for a variety of microscopes.

2. Can be customized, specifically suitable for near infrared and near ultraviolet, to meet the special material imaging.

3. Attached with objective lens or laser focusing lens, you can also use APO objective lens.

4. Tube lens with various focal length to choose from: F100/F200.

5. Max sensor format: φ22.

Model	MF100-C-S	MF200-C-S	MF200-100-C-S
SPEC	0.5X / sing vision	1.0X / single vision	0.5X &1.0X / dual vision
2D
3D

Any questions? Tell us now!

Ring Light

Lighting

The ring light source is precisely arranged by high-brightness LED, and the performance is stable easy installation and flexible customization; A variety of illumination angles and colors to choose from, to meet different detection needs, highlight key information; to solve the problem of reflection, you can choose diffuse plate making the light even and soft.

REQUEST A QUOTE