Agency for Science, Technology and Research

Zi En Ooi

Jie Zhang

Kok Leong Chang

Siew Lay Lim

Various embodiments provide a hyperspectral imaging apparatus. The hyperspectral imaging apparatus includes a micro-lens array having a plurality of micro-lenses; and a filter array having a plurality of tunable filters. Each of the plurality of tunable filters is optically coupled to a respective micro-lens of the plurality of micro-lenses. Each micro-lens and the corresponding coupled tunable filter are configured to generate a spectrally filtered image of a scene, such that the micro-lens array and the filter array generate a plurality of spectrally filtered images of the scene for receiving by a plurality of areas of an image sensor. Each of the plurality of tunable filters is tunable to transmit a selected wavelength within a respective spectral band, wherein the spectral bands of the plurality of tunable filters are different from each other.

Hyperspectral imaging apparatus and method

There is provided a sensing device for measuring a level of an analyte. The sensing device includes a sensing element configured to sense the analyte and produce an electrical output which is variable based on the level of the analyte sensed, a measurement circuit including a reference element for providing an electrical property, the measurement circuit being connected to the sensing element and configured to provide a measurement output signal based on the electrical property of the reference element and the electrical output of the sensing element, whereby the measurement output signal indicates the level of the analyte sensed with respect to the electrical property of the reference element. There is also provided a corresponding method of fabricating the sensing device.

Sensing device for measuring a level of an analyte, method of fabrication thereof

The invention relates to a sensor for sensing an analyte. The sensor comprises a detection sensing element having an electrical property variable with the amount of optical light received by the detection sensing element, a control sensing element having an electrical property variable with the amount of optical light received by the control sensing element, a detection optical element for contacting an analyte and transmitting a first amount of optical light received thereby to the detection sensing element in response to the contact with the analyte, a control optical element for contacting a control medium and transmitting a second amount of optical light received thereby to the control sensing element in response to the contact with the control medium, and an output arrangement configured to provide an indication based on the electrical property of the detection sensing element when the first amount of optical light is received by the detection sensing element, with respect to the electrical property of the control sensing element when the second amount of optical light is received by the control sensing element, thereby sensing said analyte. In various embodiments, the sensor is a pH sensor and electrical resistance is the electrical property variable in response to the amount of optical light received by the sensing elements.

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Zi En Ooi