Abstract:
The rapid screening of diseases in individuals is paramount in maintaining one's health and minimizing the spread of infectious diseases between individuals. There are many instances where this becomes challenging. For example, in developing countries like The Democratic Republic of Congo, Nigeria and Sudan, there are frequent outbreaks of malaria. The World Health Organization estimated there were 216 million cases of malaria, of which more than 650,000 people died, many of which were pregnant woman and children. In such countries, malaria is the leading cause of morbidity and death. Incredibly there are 100 countries around the globe where malaria creates a burden on health and economic development.
Abstract:
An apparatus is disclosed for contactless detection of the content of substances in a liquid by means of at least two monochromatic light emitters of different wavelenghts. In one embodiment, the light is reflected in an external surface of an alcoholic drink in order to detect for content of psycoactive substances, in another embodiment is the liquid urine and the apparatus is adapted to provide an output of the contents of in particular myogibin, blood and glucose in the urine.
Abstract:
The invention relates to a device and method for measuring the properties of a surface. The device comprises means for producing illuminating light, which means are arranged to aim the illuminating light at the surface to be measured using at least two different wavelengths and at least two different angles, as well as means for directing the light reflected or scattered from the surface to a detector, in order to create an image of the surface to be measured. The device according to the invention further comprises at least one reference surface, the contents of which can be placed in the vicinity of the surface to be measured, in such a way that the illuminating light is also aimed at the reference surface and the light reflected or scattered from the reference surface can also be directed to the detector. The invention makes possible excellent measurement precision and repeatability, using a simple device construction with low production costs.
Abstract:
The invention proposes an apparatus (110) for determining at least one optical property of a sample (112). The apparatus (110) comprises a tunable excitation light source (114; 410) for applying excitation light (122) to the sample (112). The apparatus (110) also comprises a detector (128, 130; 312) for detecting detection light (132, 136; 314) coming from the sample (112). The excitation light source (114; 410) comprises a light-emitting diode array (114) which is at least partially in the form of a monolithic light-emitting diode array (114). The monolithic light-emitting diode array (114) comprises at least three light-emitting diodes (426) each with a different emission spectrum.
Abstract:
A device, system and method for portable fluorescence detection. The portable device of the present invention features a low power light, in which a wavelength range is defined as at least one wavelength of light. The light source is preferably highly energy efficient, such that a majority of the electrical power which is consumed is then converted into transmitted light. The emitted light from the excited fluorophore is then preferably detected with any low cost and low power photodetector. Although optionally a highly sensitive optical detector may be used, preferably fluorescence is detected with any light sensing device, such as a regular photodiode or a CCD (charge-coupled device) sensor for example.
Abstract in simplified Chinese:建议一种用于决定一样本(112)之至少一光学特性的设备(110)。该设备(110)包含用于施加激发光(122)于该样本(112)之一可调谐激发光源(114;410)。该设备(110)进一步包含用于侦测从该样本(112)出现的侦测光(132、136;314)之一侦测器(128、130;312)。该激发光源(114;410)包含一发光二极管数组(114),其系至少部分地组态为一单石发光二极管数组(114)。该单石发光二极管数组(114)包含各具有一不同发射光谱的至少三个发光二极管(426)。