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MTF inspection equipment-FOA-301
MTF inspection equipment-Opto Device Corporation Co., Ltd.

About This Product

MTF inspection equipment supports resolution inspection of small portable lenses, surveillance lenses, and fisheye lenses for vehicle-mounted cameras. MTF is measured using the orthographic projection method (back projection method is also possible) and evaluated quickly using the edge function. Adopts an MTF measurement algorithm compliant with ISO12233 and digitizes the measurement results. Stable measurements are possible even under indoor lighting. In addition to the basic specifications of the orthographic projection method, we have also developed an MTF inspection device using the back projection method and have a track record of using it on mass production lines. We can also perform MTF inspection of infrared camera lenses and reflow lenses, which have been in increasing demand in recent years. function

■MTF measurement

・Measurement of MTF at each measurement point ・Adopts MTF measurement algorithm compliant with ISO12233

■Defocus measurement

Defocus measurement of MTF at each measurement point

■Focal length evaluation

Calculate the focal length of the lens to be tested from the size of the photographed chart and the distance to the object (distance between lens and chart)

■Mechanical function

・Auto Focus function ・Function to maintain high precision parallelism between inspection surface and reference surface

■Notes regarding the system of output MTF

In principle, this machine outputs comprehensive frequency characteristics such as the characteristics of the test lens, microscope, electrical system such as CMOS camera, and digital processing. Therefore, the output MTF data does not represent the absolute characteristics of the test lens. In reality, the characteristics of the measurement unit are sufficiently high compared to the performance of the test lens such as a general Digital Camera Lens, and the characteristics of the test lens appear in the practical area. In addition, the characteristics of the light source, filter, spectral sensitivity of the CMOS camera, etc. are values ​​unique to this device, and basically cannot be compared with the designed MTF. Therefore, the standards used for judgment must be determined based on the data obtained by sampling several lenses to be tested using this device.

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    MTF inspection equipment

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4 Models of MTF inspection equipment

Click on the part number for more information about each product

Image Part Number Price (excluding tax) Power supply Weight (Kg) Off-axis angle of view Object distance (mm) Measurement point (standard) Measurement object Measurement time Maximum spatial frequency (LP/mm) Method External dimensions H×W×D (mm) Displacement meter Rotating stage Light source Computer Chart Soft Z-axis stage movement (mm) CMOS camera pixel pitch CMOS camera resolution CMOS camera number of pixels CMOS camera format Repeatability
MTF inspection equipment-Part Number-FOA-301

FOA-301

Available upon quote

AC100V

About 100

40°~70°

400~600

5 locations

Small lens

1 (seconds) /1 (locations) (Standard AF operation, not including travel time)

96

Orthographic projection

500×500×1,000

None

None

Halogen lamp

Windows XP

Rectangular chart for SFR measurement

FOA-301

±2

5.2um

1280×1024

1.3 million pixels

1/2 inch

Within ±1[%] (according to our measurement conditions)

MTF inspection equipment-Part Number-FOA-302/307

FOA-302/307

Available upon quote

AC100V

About 100

40°~70°

400~600

5 locations

Small lens

1 (seconds) /1 (locations) (Standard AF operation, not including travel time)

960

Orthographic projection (enlarged)

1428×1,070×980

None

None (302) /○ (307)

High brightness LED uniform backlight

Windows XP

15[mm] square chart

FOA-302/307

±4

5.2um

1280×1024

1.3 million pixels

1/2 inch

Within ±1[%] (according to our measurement conditions)

MTF inspection equipment-Part Number-FOA-304

FOA-304

Available upon quote

AC100V

Approximately 315

6°~24° (Tele) /
15°~80° (wide)

1270~2030 (Tele) /400~850 (Wide)

5 locations

Small lens

1 (seconds) /1 (locations) (Standard AF operation, not including travel time)

960

Orthographic projection (enlarged)

2580×1,200×1,200

(2 pieces) φ5.4 eddy current displacement sensor measurement range 1 (mm) resolution 0.4 (μm)

None

High brightness LED uniform backlight

Windows XP

10[mm] square chart

FOA-304

±4

5.2um

1280×1024

1.3 million pixels

1/2 inch

Within ±1[%] (according to our measurement conditions)

MTF inspection equipment-Part Number-FOA-308

FOA-308

Available upon quote

AC100V

Approximately 200

Up to 190° (horizontal, vertical, diagonal)

500

8 locations

Small fisheye lens

1 (seconds) /1 (locations) (Standard AF operation, not including travel time)

227

Orthographic projection

1,758×1,218×748

None

None

White LED color temperature: 5000K

Windows XP

Rectangle square chart

FOA-308

±12.5

2.2um

2592 x 1944

5 million pixels

1/2.5 inch

-

Click on the part number for more information about each product

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