The system integrator M was selecting a lens based on the catalog specifications in accordance with requirements of the company’s inspection vision system. However, they felt frustrated by not being able to constantly provide the best lens because lenses with the same specification by different manufactures varied greatly in the resolution performance.
- The system integrator M wants to propose the best lens but the actual resolution performance cannot be differentiated based only by specifications.
- There is no method for comparing and evaluating lenses precisely and easily.
After utilizing “Lens Visualizer”, a lens resolution evaluation software
- Differences in resolution performances among multiple lenses with similar specification are recognized clearly, thereby allowing an objective comparison.
- FUJIFILM supported comparison and evaluation of lenses provide precise performances and realize proposals suitable for customers.
Issue 1: To provide the best lens for each customer.
Problem 1: The information on specifications is insufficient for selecting the best lens for each customer.
The vision system is adopted in various types of industries. The variety of inspection items is infinite. Moreover, conditions, such as working distance and aperture, are not the same. Then what must be done to select the best lens showing high resolution under each operating environment in different specifications of different companies? Based on the company M’s experience, lenses of different manufacturers varied in resolution performance even though they have the same specification. Therefore, they deemed that in proposing to customers who require high-resolution inspection, information on specification tables is insufficient as a criterion for selection.
Issue 2: The system integrator M wants to compare the resolution performances of multiple lenses.
Problem 2: There is no method for easily comparing and evaluating the resolution performances of multiple lenses.
If lenses can be tried and compared in the vision system under development or operation, the possibility of selecting the best lens increases and the reliability to customers is improved. However, this method is not practical because performing it will interrupt the customer’s system under development or operation. The company M was looking for ways to visually compare and evaluate the resolution performances of multiple lenses with the same specification, in the same manner as the trial.
The keys to solving these issues were...
a definite criterion of lens evaluation and objective comparison of similar products.
In the selection of a lens for vision system, the company M narrowed down the candidate lenses to several lenses with the same specification of several manufacturers. However, because they had an experience that lenses with the same specification varied in terms of resolution performance, the company M was unable to determine a solution at the last screening stage. At an exhibition event, they discovered the resolution evaluation software “Lens Visualizer,” which was developed by FUJIFILM, one of the manufactures of the candidate lenses.
Solution of Issue 1: “Lens Visualizer” facilitates precise evaluation of performance
Generally, the design concept of the lens manufacturer reflects on lens performance and each lens has each value of the working distance and aperture to maximize its performance. Meanwhile, the resolution performance decreases under conditions other than the above. In addition, the resolution performance of the central part differs from that of the peripheral part. However, the fact is that resolution performance cannot be recognized only by the lenses’ specifications.
The “Lens Visualizer,” the lens resolution evaluation software developed by FUJIFILM, displays the high and low-resolution areas in red and blue, respectively, within the shooting area, thereby allowing anyone to recognize the degree and distribution of resolution easily. After observing FUJIFILM’s demonstrated evaluation of several lenses by “Lens Visualizer” at the exhibition event, the contact personnel of the company M willingly said, “The evaluation of resolution using this software in accordance with customers’ conditions will allow us to confidently propose lenses to customers in wide industries with various inspection items.”
Solution of Issue 2: The comparison and evaluation supported by FUJIFILM help the best proposal
At the later date, the contact personnel of the company M asked FUJIFILM to compare the resolution performances of several candidate lenses by several manufacturers, including the FUJINON machine vision lens with “4D High Resolution performance” by means of “Lens Visualizer.” The company M aimed to make better proposals to customers by recognizing the true performance of lenses that cannot be learned from specifications. “Obtaining the support of FUJIFILM allows the expansion of our business,” the company M stated with expectation.
Moreover, regarding the FUJINON machine vision lens with “4D High Resolution performance,” through evaluation by “Lens Visualizer,” the company M realized that the area from the center of the screen to the peripheral area was displayed in red, indicating uniformity in resolution performance even if the working distance or aperture was changed. The contact personnel of company M said, “Adopting FUJINON lens with ‘4D High Resolution performance,’ the uniform resolution in the screen can be recognized at first glance regardless of shooting conditions, and thus our reliability was improved more.”
FUJIFILM’s unique technology solves issues
Support by “Lens Visualizer,” a lens resolution evaluation software program
The optical specialist of FUJIFILM, who was a user of the vision system, was also puzzled by the fact that lenses with the same specification vary in terms of resolution performance. The specialist’s feeling triggered the development of “Lens Visualizer.” This software provides obvious recognition of lens resolution performance that cannot be learned through reading catalogs, thereby facilitating the selection of appropriate lenses. The system integrator M said, “Lens Visualizer allows us to confidently recommend the best lenses to customers.”
Products in the case study
CF-ZA-1S series supports large high-resolution sensor of 1.1" type with 2.5µm pixel pitch.
HF-12M series is low distortion lens having 2.1μm pixel pitch and compatible with IMX536 CMOS sensor.
HF-XA-5M series is designed for "4DHR" and compatible with IMX250 high performance CMOS image sensor.
HF-HA-1S series is the lens that support 2/3" type* and 6.2μm pixel pitch.*DF6HA-1S supports 1/2 type.
Lenses specially designed to ensure the optimum performance of high performance 3-CCD/CMOS cameras.