Abstract: The present invention relates to a device for measuring the force present in the drive chain of an electric bicycle that basically comprises a metal plate (1) with an axle area for being attached to one end of the wheel axle (2) to receive the force F1 applied to the bicycle's frame by said wheel axle (2) in the longitudinal axis of the bicycle and a frame area for being to the bicycle frame were said frame area comprises tapped holes (3) to be attached to the bicycle frame, at least a force sensor (4), an adjusting screw (5) to adjust said force sensor (4), an elastic overload protection element (6), such as an helical spring, designated to maintain the sensor (4) within a secure load range for protecting it from overloads, and a system of transmission for receiving the horizontal force component F1? and transmitting a proportional elastic reaction force to the force sensor (4).

Abstract: The present invention relates to a device for measuring the force present in the drive chain of an electric bicycle that basically comprises a metal plate (1) with an axle area for being attached to one end of the wheel axle (2) to receive the force F1 applied to the bicycle's frame by said wheel axle (2) in the longitudinal axis of the bicycle and a frame area for being to the bicycle frame were said frame area comprises tapped holes (3) to be attached to the bicycle frame, at least a force sensor (4), an adjusting screw (5) to adjust said force sensor (4), an elastic overload protection element (6), such as an helical spring, designated to maintain the sensor (4) within a secure load range for protecting it from overloads, and a system of transmission for receiving the horizontal force component F1? and transmitting a proportional elastic reaction force to the force sensor (4).

Abstract: This installation includes: a light source; means for storing film photoresist for exposure and exposed photoresist; a film carrier for positioning said film photoresist at an exposure plane; a projection lens capable of projecting the digital images at the exposure plane; a liquid crystal matrix where the various digital images to be exposed are displayed; a retractable mirror oriented at 45° to an optical axis of the projection lens; and an image analysis device positioned symmetrically to said exposure plane with regard to the plane containing said mirror when the latter is in place on the optical axis. When said mirror is positioned on the optical axis, the image analysis device is suitable for receiving the image transmitted by the liquid crystal matrix issuing from the projection lens. The signals thereby detected are processed using an associated software, for setting the characteristics of the optical members of the installation.

Abstract: This installation includes: a light source ; means for storing film photoresist for exposure and exposed photoresist; a film carrier for positioning said film photoresist at an exposure plane; a projection lens capable of projecting the digital images at the exposure plane; a liquid crystal matrix where the various digital images to be exposed are displayed; a retractable mirror oriented at 45° to an optical axis of the projection lens; and an image analysis device positioned symmetrically to said exposure plane with regard to the plane containing said mirror when the latter is in place on the optical axis. When said mirror is positioned on the optical axis, the image analysis device is suitable for receiving the image transmitted by the liquid crystal matrix issuing from the projection lens. The signals thereby detected are processed using an associated software, for setting the characteristics of the optical members of the installation.

Abstract: This device for automatically pasting sheets of paper or cardboard having a low substance including a storage spool for a backing covered in a film of transfer adhesive, a motor means intended to ensure unwinding of the backing from storage spool and transport of the backing towards a pasting area, an adhesive applicator roll which can move between two positions, an operational position in which the adhesive applicator roll comes into contact with a pressure roll and between which the sheet to be pasted can move and a non-operational position in which the adhesive applicator roll is no longer in contact with the pressure roll or the sheet of paper or cardboard.

Abstract: A device for producing a bound album having individual leaves including a unit for folding the leaves in order to configure them to a desired format, a unit for scoring the leaves so as to facilitate folding them and keeping the leaves in their folded form, a pasting unit designed to paste at least some of the leaves two by two after folding, and a delivery board for receiving the scored leaves and for compiling the leaves in order to produce an album, the delivery board being capable of translational movement parallel to a direction in which the leaves are transported inside the device and between several positions in synchronism with operation of the folding unit.

Abstract: A method for visually restoring a digital image that is displayed on a transparent LCD screen includes associating an array of microlenses with the LCD screen at the input face thereof, upstream from a black mask. Each of cells of the LCD is associated with a microlens of the array. A telecentric projection lens increases the sharpness and uniformity of the image during the visual restoration thereof. The angle of divergence of an incident beam of exposure or illuminating light is verified. The LCD screen or each pixel of the image displayed on the LCD screen is laterally offset at least once on the projection surface by means of a body. One or several exposures are taken of each of said offset projections.

Abstract: A method of detecting defects, such as stains, scratches and dust, on a film in order, for example, to correct said defects while the film is being digitized, comprises advancing the film through an optical assembly comprising: on one side of the film, at least two sources of light having different wavelengths which illuminate the film in a narrow area thereof, and, on the other side of said film, a lens which projects the two images of the area illuminated by the beams from the two sources onto two linear photosensitive elements which are adapted, respectively, to the wavelengths of the two sources. Moreover, said method includes comparing the digital data delivered by the two detection elements, the result of said comparison being used to perform the aforementioned detection and correction.

Abstract: A lamp type device associated with a reflector illuminates a receiving surface of a light guide/former. An emitting surface of the light guide/former arranged proximate to a film, has substantially the dimensions of the film zone to be illuminated. The light guide/former is a single-piece part comprising two opposite planar surfaces, whereon one is receiving and the other emitting. The invention is useful for a device providing an intense and homogeneous light beam for film scanning analysis.

Abstract: A method of accelerating the speed of scanning an image that does not occupy an entire CCD strip of cells comprises: centering the image on the strip such that the non-used area of said strip is distributed on either side of the effective area, reducing, e.g., by masking, the light intensity in the non-used areas of the strip, such that, with each cycle, the charge stored by the storage capacitors is less than half of the available capacity; and, with each cycle, reading a number of cells that is equal to that of the sum of the cells in the effective area and those from one of the two lateral areas. The method is suitable for use in scanning film images that can take various formats.

Abstract: A device for guiding a film in an apparatus comprises guiding and driving means engaged on the two lateral edges of the film. The guiding and driving means is further designed to force the film to follow a curved trajectory in the imaging zone of the apparatus. The means guiding and driving the film include two coaxial rollers whereon the film is urged to span through its two edges, and two parallel driving belts urged respectively to be supported on said edges on the side opposite the rollers, along an arc with predetermined sustaining angle. The invention is useful for guiding film in an optoelectronic apparatus such as a scanning analysis device.

Abstract: A device for winding and/or unwinding a film at a constant speed includes a reel comprising two coaxial annular support areas, having the same diameter, which are separated by a concavity and which are spaced out from one another by a distance that is slightly smaller than the width of the film. The two support areas pivot freely. Guide means guide the film laterally in order to wind the film on the reel such that the lateral edges thereof rest on the two support areas of the reel respectively. Two parallel drive belts are supported respectively on said edges, along the length of an arc of circle with a predetermined angle at the center. The invention applied to a film in an optoelectronic apparatus, such as a scanning and analysis device.

Abstract: A method for visually restoring a digital image that is displayed on a transparent LCD screen includes associating an array of microlenses with the LCD screen at the input face thereof, upstream from a black mask. Each of cells of the LCD is associated with a microlens of the array. A telecentric projection lens increases the sharpness and uniformity of the image during the visual restoration thereof. The angle of divergence of an incident beam of exposure or illuminating light is verified. The LCD screen or each pixel of the image displayed on the LCD screen is laterally offset at least once on the projection surface by means of a body. One or several exposures are taken of each of said offset projections.