Abstract: A system for quantitative differential phase contrast microscopy with isotropic transfer function utilizes a modulation mechanism to create a detection light field having a radial or other axial orientation of optical intensity gradient or other distribution. A condenser generates an off-axis light field to project onto an object under examination, thereby generating an object light field, which is then guided to an image capturing device through an objective lens for capturing images. A differential phase contrast algorithm is applied to the images for obtaining a phase, thereby a depth information corresponding to the phase can be obtained to reconstruct the surface profile of the object.

Abstract: A test strip reader for reading a test result of a test strip plate or cassette is provided. The test strip plate or cassette includes a test strip and is configured for generating a control line or a test line in the test strip according to the test result. The test strip plate or cassette reader includes a light source, a driver configured for driving the light source to emit light to a section of the test strip corresponding to the control line or the test line, a photo detector configured for receiving light reflected from the section and generating a detecting signal corresponding to the test result, a signal processor configured for processing the detecting signal to obtain the test result and generating a corresponding result signal, and a display configured to display the test result based upon the result signal.

Abstract: A test strip reader for reading a test result of a test strip plate or cassette is provided. The test strip plate or cassette includes a test strip and is configured for generating a control line or a test line in the test strip according to the test result. The test strip plate or cassette reader includes a light source, a driver configured for driving the light source to emit light to a section of the test strip corresponding to the control line or the test line, a photo detector configured for receiving light reflected from the section and generating a detecting signal corresponding to the test result, a signal processor configured for processing the detecting signal to obtain the test result and generating a corresponding result signal, and a display configured to display the test result based upon the result signal.