Abstract:
The invention relates to a vehicle composite screen having an integrated light sensor, at least comprising an outer pane (1) and an inner pane (2) which are interconnected by a thermoplastic intermediate layer (3), wherein at least one photodiode (4) located on a circuit board (5) is arranged between the outer pane (1) and the inner pane (2), the photodiode (4) being an SMD component.
Abstract:
A photodetection circuit includes an avalanche photodiode and a mode switching circuit that may be configured to selectively switch an operating mode of the photodetection circuit between linear mode and Geiger mode. The photodetection circuit may further include a quenching circuit configured to quench and reset the avalanche photodiode in response to an avalanche event when the photodetection circuit is operated in Geiger mode. The photodetection circuit may additionally include an integration circuit configured to integrate photocurrent output by the photodiode and generate integrated charge units when the photodetection circuit is operated in linear mode. The photodetection circuit may also include a counter configured to count pulses output by the avalanche photodiode when the photodetection circuit is operated in Geiger mode and to count integrated charge units generated by the integration circuit when the photodetection circuit is operated in linear mode.
Abstract:
A rendering apparatus includes: a radiant-energy calculating device for determining a spectral radiance for each infinitesimal area of an object by using a spectral radiance of a light source irradiating the object, a spectral reflectance in the infinitesimal area of the object, and a spectral reflectance factor in a wide area of the object; a color-specification-value calculating device for calculating color specification values of a colorimetric system on the basis of the spectral radiance obtained for each infinitesimal area; a transforming device for transforming the color specification values into image data for displaying an image of the object; and a display device for displaying the image of the object on the basis of the image data.
Abstract:
L'invention concerne un dispositif de détection optronique comprenant outre un objectif (A) captant une onde à détecter et des moyens de conversion opto-électronique (E), un guide d'onde à fibres optiques (fo ij ) siège d'effets optiques non-linéaires. Dans une variante de réalisation préférée, chaque fibre optique est dopée par un ou plusieurs ions de terre rare, tel l'Erbium :Er³⁺, excités par pompage optique (D). Application à la télémétrie, à l'écartométrie et plus généralement à la veille optique durcie contre les agressions optiques (contre-mesure).
Abstract:
A system for analyzing the characteristics of a light beam is disclosed. Functionally, the system includes an optical system for collecting the light beam to be analyzed. An array of light-sensitive elements is positioned at the focal plane of the optical system. A digital system sequentially samples the output signals of the light sensors and processes the resulting data to generate signals indicative of the characteristics of the light beam.