Abstract:
The present invention relates to head-up-display (100), HUD. The HUD is arranged to project an image to at least one eye (180) of a user of the HUD. The HUD comprises an image source (130). The image source can be arranged to provide the image to be projected via a curved image plane. The HUD further comprises an optical component (160). The optical component comprises at least one free-form surface (161).The optical component (160) is arranged in an optical path between the image source (130) and the intended position of said at least one eye (180) of the user of the HUD. The HUD further comprises a flat lens (150) which comprises a structured lens pattern (510) on at least one of its surfaces (152).The structured lens pattern (510) has a feature (511, 512, 513, …) size in the order of 10 μm up to 10 mm. The flat lens (150) is arranged in the optical path between the image source (130) and the intended position of said at least one eye (180) of the user of the HUD. The HUD further comprises a combiner (140). At least one surface (141, 142) of the combiner (140) is a free-form surface. The combiner (140) is arranged in the optical path between the optical component(160) and the intended position of said at least one eye (180) of the user of the HUD. The present invention also relates to an airborne vehicle(10), such as an airplane.
Abstract:
The present disclosure relates to a head up or head mounted display arrangement and a method for presenting at least one image via at least one surface element of a head up or head mounted display arrangement. The arrangement comprises at least one image generating element (301, 302) arranged to generate an image in a first image plane (346´, 346''),at least one surface element,and a fibre optic face plate (340).The face plate is arranged in relation to the at least one image generating element such that the first surface lies at a first image plane. A second image plane lies at the second surface and the at least one surface element is arranged in the beam path from the second surface. The first image plane comprises a plurality of first part image planes each associated with an individual first part surface of the fibre optic face plate and/or the second image plane comprises a plurality of second part image planes each associated with an individual second part surface of the fibre optic face plate.
Abstract:
The present disclosure relates devices and a method for monitoring a display image (2) in a transparent optical projection display. They disclose a display image monitor (1) comprising a fiber optic face plate (4) and an image sensor (5). The fiber optic face plate (4) comprises a first surface (4a) with optic fiber ends and a second surface (4b) with corresponding optic fiber ends and transfers light from the first surface (4a) to the second surface (4b) through the optic fibers, wherein the first surface abuts against a part (2a) of the display image (2) at a focused image plane (2b) and thus the light of the part of the display image enters the optic fiber ends and wherein the second surface is arranged to direct the part of the display image to the image sensor, thereby transferring the part of the display image to the image sensor.
Abstract:
The present invention relates to a target system for a weapon effect simulation system, said target system comprising a retro-reflecting prism having at least three back surfaces arranged to an incident simulation beam and wherein at least one of the back surfaces comprises a first, selectively reflecting layer arranged to reflect a simulation beam of a predetermined optical wavelength range and being substantially transparent to optical wavelengths outside said range. The system is characterized in that a second layer is mounted on the first layer, said second layer being arranged to receive beams transmitted through said first layer and said second layer being of a material having an index of refraction sufficiently high to avoid total internal reflection between said first and second layer within a predetermined range of incident angles.
Abstract:
The present disclosure relates devices and a method for monitoring a display image (2) in a transparent optical projection display. They disclose a display image monitor (1) comprising a fiber optic face plate (4) and an image sensor (5). The fiber optic face plate (4) comprises a first surface (4a) with optic fiber ends and a second surface (4b) with corresponding optic fiber ends and transfers light from the first surface (4a) to the second surface (4b) through the optic fibers, wherein the first surface abuts against a part (2a) of the display image (2) at a focused image plane (2b) and thus the light of the part of the display image enters the optic fiber ends and wherein the second surface is arranged to direct the part of the display image to the image sensor, thereby transferring the part of the display image to the image sensor.