Abstract:
Actionneur comportant deux dispositifs comprenant chacun un élément déformable (4, 104) hors plan, ledit élément déformable (4, 104) comprenant une première extrémité fixe (4.1, 104.1) ancrée sur un substrat et une deuxième extrémité libre (4.2, 104.2) par rapport au substrat, ledit dispositif comportant également des moyens de guidage en translation de la deuxième extrémité libre (4.2) dans le plan le long d'une première direction (X), le premier élément déformable (4, 104) étant apte à être déformé hors plan par application d'un stimulus de sorte que la deuxième extrémité libre (4.2, 104.2) se rapproche de la premier extrémité fixe (4.1, 104.1) selon un mouvement de translation dans le plan. L'actionneur comportant également un élément mobile en rotation (8) autour d'un axe (Z) orthogonal au plan et relié mécaniquement aux extrémités libres (4.2, 104.2) des éléments déformables (4,104) et un élément mobile en translation (18) relié mécaniquement à l'élément mobile en rotation (8).
Abstract:
In a mirror drive device, a first and second actuator sections are arranged on both sides of a mirror supporting section that supports a mirror section so as to sandwich the mirror supporting section. Division of an upper and lower electrodes of each of the first and second actuator sections is performed correspondingly to stress distribution of principal stresses in a piezoelectric body in resonant mode vibration, and a piezoelectric body portion corresponding to positions of a first and third upper electrode sections, and a piezoelectric body portion corresponding to positions of a second and fourth upper electrode sections have stresses in opposite directions to each other. Division of the lower electrodes is performed similar to the upper electrodes, and drive voltages having the same phase can be respectively applied to the upper and lower electrode sections of the piezoelectric body portions that are different due to a division arrangement.
Abstract:
An illumination device, comprising a reflective optical cavity (2104, 2116) including a plurality of light-transmissive regions (2108) through which light can escape the reflective optical cavity (2104, 2116); a light source (2118) arranged to introduce the light into the reflective optical cavity (2104, 2116); a plurality of light modulators (2102), each having at least first and second states, wherein, in the first state, a light modulator (2102) obstructs a corresponding light-transmissive region (2108) thereby preventing light introduced into the reflective optical cavity (2104, 2116) from illuminating an image pixel that corresponds to the light-transmissive region (2108), and in the second state, the light modulator (2102) allows light escaping the reflective optical cavity (2104, 2116) through the corresponding light-transmissive region (2108) to illuminate the image pixel corresponding to the light-transmissive region (2108).
Abstract:
An illumination device, comprising a reflective optical cavity (2104, 2116) including a plurality of light-transmissive regions (2108) through which light can escape the reflective optical cavity (2104, 2116); a light source (2118) arranged to introduce the light into the reflective optical cavity (2104, 2116); a plurality of light modulators (2102), each having at least first and second states, wherein, in the first state, a light modulator (2102) obstructs a corresponding light-transmissive region (2108) thereby preventing light introduced into the reflective optical cavity (2104, 2116) from illuminating an image pixel that corresponds to the light-transmissive region (2108), and in the second state, the light modulator (2102) allows light escaping the reflective optical cavity (2104, 2116) through the corresponding light-transmissive region (2108) to illuminate the image pixel corresponding to the light-transmissive region (2108).
Abstract:
An electromechanical transducer (1) has a pressurizing chamber (21) and a side-chamber (23) formed in a plate (11). On a driven film (13) forming the upper wall surface (21a) of the pressurizing chamber (21) and the side-chamber (23), a lower electrode (33), a driving member, and an upper electrode (35) are formed in this order. The driving member is composed of an operation section (31p) located over the pressurizing chamber (21), and an extended section (31a) extending from the operation section (31p) to over the side-chamber (23). The side-chamber (23) has a smaller width than the pressurizing chamber (21) in a second direction perpendicular to a first direction in which the side-chamber (23) is located beside the pressurizing chamber (21). The extended section (31a) of the driving member has a smaller width than the side-chamber (23) in the second direction.
Abstract:
A display apparatus comprises a modulator for selectively interacting with light in an optical path to form an image on the display apparatus. A controllable first electrostatic actuator provides a first mechanical support for the modulator, the first mechanical support providing a supportive connection from a first location on the modulator to a surface over which the modulator is supported. A second mechanical support provides a supportive connection from a second location on the modulator to the surface. The first electrostatic actuator drives the modulator in a plane substantially parallel to the surface.
Abstract:
A microelectromechanical device comprises a first component defining a plane and a beam including at least one amorphous silicon layer suspended over the first component. A dimension of the beam normal to the defined plane is at least 1.4 times at least one dimension of the beam within the defined plane.