Effective resolution calculator code#

In case of smallest image details and large magnifications please use macro-lenses which are specially designed for these applications.įurther details on optical calculations can be found in chapter Optical basics. For example, given a lens of 10mm diameter and a visible light wavelength of 550 nm, Rayleighs criterion would tell us that 1.22 (550E-9)/ (10E-3) 6.71E-5 rad. Especially in case of very small working distances of several centimetres, the calculated values are no longer realistic. The calculated working distances refer to the optic centre of the lens housing.

Effective resolution calculator code#

Note that under identical conditions, effective resolution is larger than noise-free code resolution by log 2 (6.6), or approximately 2.7 bits. In this case, the term effective resolution is used. By means of additional spacers, however, the lens distance can be reduced ('see calculation of close-up rings'). The ratio of the full-scale range to the rms input noise (rather than peak-to-peak noise) is sometimes used to calculate resolution. In case of F-mount lenses and other lenses for larger image circle diameters, the minimum lens distances are often considerably larger. Hinweis: Zur einfachen Berechnung bitte einen Wert in der Dropdownbox selektieren! Eingabe eigener Werte durch Auswahl von 'User def.' in DropDown-Liste!Ĭalculating the working distance using object size and opening angleĪttention: Calculated working distances below 150 to 300 millimetres cannot be focused using normal C-mount lenses. Send your calculation with your own email program (MailTo-link).Īrbeitsabstand: mit Pixelgröße Sensor, Brennweite und Bauteilgröße rechnen Effect Size Calculator for T-test Group 1 Mean, M1 Standard Deviation, SD1 Group 2 Mean, M2 Standard Deviation, SD2 Results Cohen's d 0. We respect your privacy: We do not store any inputs, results or recipients. Length/ size of inspected object in mm (field of view FOV): To calculate effective dose for CT, two approaches are common: the first uses software-based Monte Carlo methods such as CT-Expo (Sascrad) or ImPACT (ImPACT Group), and the second was developed as a simplified method to quickly estimate effective dose using the dose-length product (DLP) and sets of age- and body regionspecific k-coefficients. Note: Even when using the drop-down lists own values can be entered.

Using object size& opening angle Calculating the working distance using focal length, object and sensor size