ProCam®/ CamTest: Active Alignment, Assembly and Testing of Camera Modules
ProCam®
Active alignment, assembly and testing of camera modules and LiDAR systems
With the measurement and production instruments of the ProCam® series we offer solutions for the critical challenge of active alignment and series production of high-precision optical sensor systems. Due to a controlled, automated manufacturing process, our systems ensure accurate, repeatable and fast alignment and assembly of camera modules. The optimization of the image quality by using the active alignment technology leads to a decrease of production rejects. The increasing yield and high image quality make active alignment an efficient manufacturing method for high-end camera applications.
ProCam® Align Smart
Active alignment for small series production
The ProCam® Align Smart is a premium solution for optimizing the optical performance of camera modules through active alignment.
- Automatic glue dispensing
- Alignment of the optics to the sensor or vice versa
- Precise adjustments for translation, tilt, focus and rotation to allow for optimal image quality
- Process ends with automatic UV-curing
ProCam® TT
High performance with smallest footprint
The ProCam® TT is a highly automated system for active alignment and assembly of cameras and LiDAR systems in mass production.
- Cycle time 12 seconds/ 300 units per hour (depending on the individual customer’s camera data)
- Fast product change within the cycle time
- Manually operated or integrated into an automated production line
- High precision collimator target generators
ProCam® Prototyping
Consulting and engineering service
Our service to develop the best possible camera module according to your requirements. The service includes ongoing in-house manufacturing of prototypes and small series.
- Design optimization for the best possible active alignment process
- The alignment is done in the sub-micrometer range in all 6 axes (tilt, shift, focus, rotation) to achieve the optimum image quality
- Support for choosing the best manufacturing strategy based on your demands e.g. batch size and cycle time
Technical Data
| Parameter | ProCam® TT | ProCam® Align Smart |
|---|---|---|
| Alignment degrees of freedom | up to 6 DoF | up to 6 DoF |
| 6 DoF linear alignment resolution | < 0.5 µm | < 0.5 µm |
| Final sample linear alignment accuracy | < 4 µm 1) | < 4 µm 1) |
| 6 DoF tilt alignment resolution | < 0.7 arcsec | < 0.7 arcsec |
| Final sample tilt alignment accuracy | < 4 arcmin 1) | < 4 arcmin 1) |
| Alignment degrees of freedom | up to 6 DoF | up to 6 DoF |
| 6 DoF linear alignment resolution | < 0.5 µm | < 0.5 µm |
| Final sample linear alignment accuracy | < 4 µm 1) | < 4 µm 1) |
| 6 DoF tilt alignment resolution | < 0.7 arcsec | < 0.7 arcsec |
| Final sample tilt alignment accuracy | < 4 arcmin 1) | < 4 arcmin 1) |
- Typical accuracy reached on following sample parameter: pixel size 6µm, F# = 2.8, EFL = 4.5mm.
- Up to 180° possible after individual clarification, depending on sample and mechanical surrounding, for bigger FoV technical investigations necessary.
- Depending on distortion, individual clarification necessary.
CamTest
Complete performance testing of camera modules
The increased demand for complex camera and lidar systems used in automated object recognition and classification, for instance in the safety & surveillance sector and automotive industry (keywords: autonomous driving and driver assistance systems), has resulted in new and more stringent requirements for the characterization of image quality and the assembly of camera modules. The entire test chain for optical systems, sensor components and complete camera systems must meet these new requirements. With the CamTest series, TRIOPTICS offers the matching technologies and benefits from its long-standing experience in optical testing and complements them with new measurement systems for opto-electric and opto-mechanical parameters.
CamTest Smart
The most versatile measuring system
CamTest Smart is an end-of-line test system that enables comprehensive testing of camera modules. With the help of focusing collimators, a test chart and an integrating sphere integrated in only one device, the End-of-Line test can be realized.
- Testing of all essential image quality characteristics of camera modules in just one system
- Flexibility with regard to different camera types
- Flexible low to mid volume production and R&D
- Fully automated process
CamTest MTF
One-shot MTF measurement
In order to test camera modules with larger object distances, a structure with fixed collimators, which are preset for infinite or finite object distances, is suitable. In this case, the field of view depends on the actual object distance.
- With this set-up, the MTF can be quickly and easily determined
- Furthermore, also Line Spread Function, SFR and ESF can be measured
- This method is escpecially suitable for a final quality check in high volume camera production.
CamTest Focus
Determination of best focus plane
The collimator virtually projects the target onto the sample. By using focusable collimators, any object distance of 1m to infinity can be generated. This makes it possible to measure the position and tilt of the best focus plane.
- the setup provides a field of view of +/-90°
- variable object distance from finite to infinite in just one measurement setup
- measurement of various parameters such as: MTF, SFR, through-focus MTF, image plane tilt, boresight shift, roll angle
CamTest Chart
Easy measurement of distortion
The CamTest Chart system projects a test target from finite or infinit object distance to the camera module under test. For an infinite test setup a specially designed relay optic is used. With the help of a suitable optical structure, cameras with a highly distorted optical system can also be calibrated.
- Measurement of: camera lens geometric distortion (LGD), TV distortion, camera boresight and optical center, camera EFL and FOV.
- From the distortion measurement the distortion coeffecients (Seidel coefficients) are obtained used for the calibration of the camera module under test
- Especially relevant for ADAS (Advanced Driver Assistance Systems)
- The relay optic is available as an upgrade
CamTest Spectral
Determination of sensor parameters
The CamTest Spectral comes with an integrating sphere in finite object distance. The integrating sphere serves as a light source in order to obtain the diffuse light required for the measurements.
- Measurements of camera modules with up to 160° field of view
- The sphere allows a light uniformity of more than 95 %
- The setup is particularly well-suited for measuring parameters such as defect pixels, FPN, color rendering, OECF, relative illumination and dynamic range.
CamTest R&D
High-precision image quality test
The CamTest R&D is a high-precision measurement device for testing a variety of image quality parameters of camera modules. The computercontrolled test target distance can be freely selected from finite distances to infinity using a focusing collimator.
- available for various wavelength ranges (VIS, NIR and LWIR)
- can be used for many types of camera modules
- ideal solution for comprehensive measurement tasks in the R&D environment
- wide off-axis angle range of up to +/- 110°
CamTest ColMot
Optical target projectors
The CamTest ColMot system is a series of industry-leading optical target projectors providing virtual test targets for the performance test of electronic camera modules or objective lenses. The main application is the test for camera image quality, lens alignment and focus precision.
- Very compact design for dense field of view (FOV) coverage
- Infinite conjugate testing for very wide FOV cameras
- For measurement of MTF/ SFR, through-focus MTF/ SFR, image plane tilt, camera boresight, focus setting and roll angle
- High speed and high positioning repeatability
CamTest LWIR collimators
Long-wave length infrared collimators
The first edition of CamTest LWIR collimators enables automated mass production of thermal imaging cameras. For manufacturers of thermal imaging, thermographic or infrared cameras used in the military and in the surveillance of buildings, industrial plants or people.
- Making the invisible visible with the LWIR collimators in infrared technology
- Wavelength range: 7 -12 µm
- Effective focal length (EFL): 50 mm, 200 mm or 500 mm
- 5-axis Controller manages and monitors the lighting, the shutter and the fan
Technical Data
| Parameter | CamTest R&D | CamTest MTF | CamTest Focus | CamTest Chart | CamTest Spectral | CamTest Smart |
|---|---|---|---|---|---|---|
| Field of view | Up to ±90° (up to ±110° after individual clarification) | Up to ±70° diagonal field of view (up to ±90° after individual clarification) |
Up to ±70° diagonal field of view (up to ±90° after individual clarification) |
Up to ±35° diagonal field of view (up to ±50° after individual clarification) |
Up to ±70° diagonal field of view (up to ±80° after individual clarification) |
Depending on the instrument configuration and up to 3 possible integrated measuring chambers (MTF, Focus, Chart or Spectral) |
| Standard illumination wavelength (others on request) |
White LED with PE-Filter RGB LED: 625 nm/520 nm/470 nm 940 nm & 850 nm |
White LED colour temperature 6500 K |
White LED colour temperature 6500 K |
Backlit LED green narrow spectrum |
Adjustable spectrum 420 nm … 780 nm |
|
| Sample EFL (Effective Focal Length) |
1.8 mm … 16 mm 1) | 1 mm … 12 mm 1) | 1.8 mm … 12 mm 1) | 1 mm … 12 mm 1) | 1 mm … 12 mm 1) | |
| Object distance | 0.5 m to infinity | Infinity | 1000 mm … infinity | Finite / infinite | 1000 mm … infinity | |
| Typ. measurement time | 2 s … 1 min (Depending on the number of different parameters to be measured) |
< 2 s | < 15 s | < 5 s | < 5 s particle & defect pixel, < 5 s shading, < 10 s OECF, < 15 s spectral response |
|
| Sample diameter / Free aperture |
n.a. | n.a. / < 5 mm | n.a. / < 5 mm | n.a. / < 5 mm | 2 mm … 20 mm / n.a. | |
| Camera interface | Software Development Kit provided enabling to connect customer camera with own framegrabber to all standard interfaces (either MIPI, analog or directly to e. g. USB, FireWire, CamLink, GigE). |
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| Type | Stand alone | |||||
| Dimensions (h x w x d) |
2,000 mm x 800 mm x 1,500 mm | 2,150 mm x 1,120 mm x 875 mm | 2,159 mm x 1,740 mm x 1,226 mm | |||
| Weight (approx.) | 300 kg | Up to 350 kg | 750 kg | |||
| Power consumption | max. 1300 W | typ. 100 W … 500 W | 300 W … 1000 W | |||
| Voltage | 100 … 130 VAC oder 220 … 230 VAC | 100 … 130 VAC or 220 … 230 VAC | ||||
| Compressed air | 5 bar … 7 bar (optional for sample fixation) | |||||
| External Communication Interface | TCP – IP | TCP – IP OPC – UA |
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