A system for diagnosing problems experienced with a mobile device includes a processor and first, second, third and fourth mirrors arranged such that light travels from a mobile device display to strike each of the first, second, third and fourth mirrors in turn and is reflected into a camera of the mobile device. The processor is configured to analyze the light received by the camera of the mobile device to diagnose problems experienced with the camera, the mobile device display or both.

A head up display arrangement for a motor vehicle includes a picture generation unit generating an illuminated image. A first free form mirror is positioned to provide a first reflection of the illuminated image. A second free form mirror is positioned to receive the first reflection of the illuminated image and provide a second reflection of the illuminated image. A windshield of the motor vehicle is positioned to receive the second reflection of the illuminated image and provide a third reflection that is visible to a driver of the vehicle as a virtual image.

A visualization apparatus for a surgical site includes a recording unit for recording an image of an object arranged in a focal plane of the recording unit. The recording unit has a lens having an optical axis that intersects the focal plane at a point P. An electronic image representation unit has an image surface for reproducing the recorded image and point P is reproduced at image point P. A mirror unit has a mirror surface, which has a center point S and is arranged relative to the image surface such that the reproduced image is reflected by the mirror surface. The focal plane, image surface and mirror surface are arranged relative to one another such that an observation point B results for which the following applies:
2 D<12<+2 D;
wherein:
1=1/d.sub.1
2=1/d.sub.2
d.sub.1=distance PB
d.sub.2=distance PS+distance SB.

The projector includes a light source device, a first optical modulation device which modulates light emitted from the light source device and emits modulated light as first modulated light, a second optical modulation device which modulates the first modulated light and emits the first modulated light as second modulated light, a optical projection device projecting the second modulated light, and a relay device provided on an optical path between the first optical modulation device and the second optical modulation device, and the relay device includes an image forming lens which forms an image of the first modulated light on a modulation surface of the second optical modulation device and a reflection member disposed at a pupil position of the image forming lens and reflecting the incident first modulated light, and the reflection member has a scattering structure which scatters the first modulated light.

The present invention relates to optical imaging devices and methods for reading optical codes. The image device comprises a sensor, a lens, a plurality of illumination devices, and a plurality of reflective surfaces. The sensor is configured to sense with a predetermined number of lines of pixels, where the predetermined lines of pixels are arranged in a predetermined position. The lens has an imaging path along an optical axis. The plurality of illumination devices are configured to transmit an illumination pattern along the optical axis, and the plurality of reflective surfaces are configured to fold the optical axis.

A system for measuring thermal degradation of composites includes a cylindrical body; a bottom cover having a lower central aperture; an upper concave mirror facing the bottom cover with an upper central orifice concentric with a central axis of the body; a lower concave mirror facing the upper concave mirror with a lower central orifice concentric with the central axis; a source of actinic radiation between the upper concave mirror and the lower concave mirror on the central axis to direct actinic radiation through the lower central orifice and lower central aperture; and a camera with an image sensor positioned concentrically relative to the upper central orifice; wherein the bottom cover is adjustable relative to the cylindrical body to provide a focusing function for the image sensor by varying the distance from the lower central orifice and the upper reflective surface.

A semiconductor measuring tool has a folding mirror configuration that directs a light beam to pass the same space multiple times to reduce the size and footprint. Furthermore, the folding mirrors may reflect the light beam at less than forty-five degrees; thereby allowing for smaller folding mirrors as compared to the prior art.

A device for the sampling of a pulsed laser beam of high energy, typically greater than 1 J, and of large size, having a diameter typically greater than 1 cm, combined with a compressor, comprises, upstream of the compressor: a sample-taking device provided with a sampling diopter capable of transmitting T % of the pulsed laser beam, T being greater than 90, and of reflecting (1T) % of the pulsed laser beam, the reflected beam being called sampled beam, an afocal capable of reducing the size of the sampled beam, the compressor having a determined useful aperture, a device for reinjecting the reduced sampled beam into this useful aperture.

Camera methods and apparatus are described where the camera device includes multiple optical chains. In various embodiments two or more of the optical chains include light redirection devices such as mirrors or prisms. Sensors corresponding to multiple different optical chains, but not necessarily all optical chains, are parallel to each other. In some embodiments sensors corresponding to different optical chains are located in the same plane at the front or rear of the camera. However other sensor mounting positions are also possible.

An optical relay system includes four or more reflective optical elements oriented in a tilted configuration. Each of the four or more reflective optical elements is tilted about one of four or more tilt axes. Further, the four or more tilt axes are oriented to correct for aberrations induced by the tilted configuration.