A temperature control device for a timepiece, includes a first light-transmitting portion, defining with a second adjacent portion an intermediate chamber of variable dimensions according to the temperature of the first portion, the first portion includes first microlouvers according to a first spatial distribution, the second portion includes second microlouvers according to a second spatial distribution and substantially facing the first microlouvers, to superimpose partially or totally in certain relative positions between the first portion and the second portion, in order to vary the transmission and/or the reflection of the incident light on the first portion between a maximum and a minimum.

An electrowetting display device comprising a first support plate including: a surface; and a first electrode, a second support plate; and a protrusion having a protrusion surface. The protrusion is formed as part of at least one of the first or second support plates. The protrusion has an elongate shape extending from one to the other of the first or second support plates. The device further comprises a first fluid adjoining at least one of the protrusion surface or the surface of the first support plate; a second fluid immiscible with the first fluid; a second electrode in electrical contact with the second fluid; and a third electrode.

An optical observation unit (1) has an illumination apparatus (43) for illuminating an observation object (3). The illumination apparatus (43, 143) has a light source (45) emitting illumination light with a first color temperature, and a spectral filter (49) that can be inserted in the illumination beam path. The spectral filter (49) converts the illumination light with the first color temperature into illumination light with a second color temperature. The illumination apparatus further has an attenuator (51) that can be inserted in the illumination beam path in place of the spectral filter (49) and has a transmission characteristic that leads to an intensity reduction of the illumination light with the first color temperature that corresponds to the intensity reduction of the illumination light with the second color temperature by way of the spectral filter (49).

A method of patterning lithographic substrates that includes using a free electron laser to generate EUV radiation and delivering the EUV radiation to a lithographic apparatus which projects the EUV radiation onto lithographic substrates. The method further includes reducing fluctuations in the power of EUV radiation delivered to the lithographic substrates by using a feedback-based control loop to monitor the free electron laser and adjust operation of the free electron laser accordingly, and applying variable attenuation to EUV radiation that has been output by the free electron laser in order to further control the power of EUV radiation delivered to the lithographic apparatus.

A system for dynamically projecting a logo onto a surface includes a light source, moveable lenses, and an actuator. The light source emits light toward the surface. The lenses are positioned with between the light source and the surface, with each lens having multiple transparent portions configured to permit some of the emitted light to pass through the lens in a corresponding light pattern. Each corresponding light pattern forms a different part of the logo. The actuator moves the lenses with respect to the emitted light in response to a control signal to thereby cause projection of the logo onto the surface. A vehicle includes a body having a door, road wheels in contact with a road surface, and the system which projects the logo onto the road surface proximate the door. The controller may be programmed to execute a method for projecting the logo.

An optical amplifier module is configured as a multi-stage free-space optics arrangement, including at least an input stage and an output stage. The actual amplification is provided by a separate fiber-based component coupled to the module. A propagating optical input signal and pump light are provided to the input stage, with the amplified optical signal exiting the output stage. The necessary operations performed on the signal within each stage are provided by directing free-space beams through discrete optical components. The utilization of discrete optical components and free-space beams significantly reduces the number of fiber splices and other types of coupling connections required in prior art amplifier modules, allowing for an automated process to create a “pluggable” optical amplifier module of small form factor proportions.

A light assembly includes a light source, and a micromechanical shutter arrangement having a two-dimensional arrangement of closable shutter openings, wherein at least one shutter opening has a rectangular shape with a length and a width, and the length is greater than the width. The light assembly may be configured as a headlamp for a motor vehicle.

A display device includes: a display unit which displays an image; a detection unit which detects positions of first and second pointers on the image; a storage unit having a storage area corresponding to the pointers; a storage control unit which causes first and second virtual objects associated with the first and second pointers to be stored in the storage area, with the first and second virtual objects corresponding to first and second identifiers, respectively; and a pasting unit which pastes the first virtual object stored corresponding to the first identifier in the storage area to the image in response to an operation of the first pointer, and which pastes the second virtual object stored corresponding to the second identifier in the storage area to the image in response to an operation of the second pointer.

A microscope (10) is described, having an aperture limiter (12), arranged in the beam path (22), for generating at least one optical channel (16; 18; 20). The aperture limiter (12) is embodied to set the aperture of the at least one optical channel (16; 18; 20). The aperture limiter (12) is furthermore embodied in such a way that in a first operating mode a first optical channel, and in a second operating mode at least one second optical channel, is selectively generatable. The aperture limiter is also arranged in the pupil plane of the beam path.

A beam dump apparatus may include: an attenuator module; a beam dump module; and a control unit. The attenuator module includes: a first beam splitter provided inclined with respect to the optical axis of a laser beam at a first angle; a second beam splitter provided inclined with respect to the optical axis at a second angle; a first beam dumper provided such that the laser beam from the first beam splitter enters thereinto; a second beam dumper provided such that the laser beam from the second beam splitter enters thereinto; and a first stage that causes the beam splitters to advance into and retreat from the optical path. The beam dump module includes: a mirror; a third beam dumper provided such that the laser beam from the mirror enters thereinto; and a second stage that causes the mirror to advance into and retreat from the optical path.