摘要:
An auxiliary optical unit attachable to an optical device for optional use therewith, includes: (a) an afocal teleconverter lens system having a predetermined magnification; (b) a laser range finder system for measuring and displaying the range to viewed object; and (c) a beam splitter located within the auxiliary optical unit such that when the auxiliary optical unit is attached to the optical device, both the displayed range and the object are concurrently viewable by the optical device. In the described preferred embodiment, the optical device is a telescopic gun sight to which the auxiliary optical unit is quickly attachable, to provide range display and increased magnification whenever desired.
摘要:
Pathlength matched optical devices (such as beam splitters) are produced by viewing optical paths through the optical devices and adjusting relative positions of optical components of the optical devices until the viewed optical paths are equivalent. The optical paths begin at markings at different locations on the optical device. The optical pathlengths are equivalent when both markings are in focus in a limited field of view camera or lens. In a beam splitting cube constructed of two prisms, markings located at precisely similar locations on different prisms are pathlength matched when coincident as viewed at a reference face of the cube. The prisms are abutted at their diagonals and are adjusted by sliding the prisms along the diagonals to the pathlength matched position. Optical adhesive between the prisms is cured after fixing the prisms at the pathlength matched position.
摘要:
The present invention provides an electro-optical device can include a dot-like light source array in which a plurality of light-emitting elements for emitting red light, a plurality of light-emitting elements for emitting green light, and a plurality of light-emitting elements for emitting blue light are arranged. The device can further include a microlens array in which a plurality of micolenses are arranged and an optical modulation panel having a plurality of pixels for red light, a plurality of pixels for green light, a plurality of pixels for blue light, and a plurality of transmissive windows corresponding to the pixels. The electro-optical device can be configured so that by the microlens array light from the light-emitting elements for emitting red light is collected at the transmissive windows corresponding to the pixels for red light, light from the light-emitting elements for emitting green light is collected at the transmissive windows corresponding to the pixels for green light, and light from the light-emitting elements for emitting blue light is collected at the transmissive windows corresponding to the pixels for blue light.
摘要:
The present invention is a head-mounted virtual display apparatus based on a cross-cavity optical configuration, in which a near-eye light deflecting element (LDE) is located in the peripheral field of view. Positioning of the near-eye LDE in the peripheral field of view provides the user simultaneously with “look toward” access to an inset magnified image of a miniature display and an unobstructed forward field of view of at least 35 degrees. Active and passive alignment means, including articulating connections and image warping electronics, allow correction of geometric distortion arising from folding of the optical train and/or embodiments based on off-axis optical configurations.
摘要:
A double-plate combiner for a head-up visor, including two substantially flat plates substantially parallel to each other, and held fixedly together by a holding structure that includes a central baseplate, two side flanks connected to the central baseplate, and two spacers respectively connected to the side flanks and tightly holding the two plates between them. An outer plate is tightly held between free ends of the spacers and an inner plate is tightly held between the free ends, connected to the side flanks, of the spacers. An assembly of the plates, the side flanks, and the spacers has a plane of symmetry substantially orthogonal to the mid-plane of the plates. A first dimension from one spacer to the other of the outer plate is greater than a second dimension from one spacer to the other of the inner plate. The mid-plane of each spacer is not orthogonal to the mid-plane of the plates. Such a double-plate combiner can especially be applied to a head-up visor mounted in the cockpit of an aircraft, preferably of the airplane type.
摘要:
A vehicle (10) has a camera (12) generating infrared images of a scene ahead, and a display (16) which reflects images from the vehicle windshield (17). Images from the camera are displayed at night, and operational information about the vehicle is displayed during the day. The display includes a mirror (41) with day and night reflective surfaces (162, 163) that have different optical characteristics and are arranged at an angle. The mirror is pivoted to transition the display unit between modes. In an alternative display (216), radiation from the two-sided mirror travels directly to a driver, without reflection from a windshield.
摘要:
A head-up display is provided which is suitable for a motorcycle. An image is present in peripheral fields outside a 90% center field. In the case where the image is located outside the 90% center field, it does not obstruct driving of the vehicle, and in the case where the image is located in the peripheral fields, it allows a driver to dimly see the shape of the image and thereby recognize the presence of the image. For this reason, the image is located in the peripheral fields. Since an image is located in a peripheral field, the presence of the image can be recognized by a driver while not obstructing a desirable visibility to the front side of the driver. The driver can recognize, on the basis of the presence or absence of the image, whether or not attention should be taken to drive the vehicle.
摘要:
A mobile imaging system (100) for capturing images of an environment surrounding a user and transmitting those images to a remotely located recording device (108) is provided. The system includes an imaging device (110) adapted to be worn by a user, receive light, and convert the received light into video signals amenable for recordation by the recording device. A communication system (104) is adapted to couple the imaging device in signal communication with the recording device and transfer the video signals therebetween. A switch (106) is coupled to the communication system, the switch adapted to control both operation of the imaging device and the recording device. The imaging device may be attached to a support member (102) adapted to be worn upon a head of a user. A visual indicator (114) may be used to communicate to a user an operating status of the recording device.
摘要:
The invention relates to a head-mounted display provided with an image display device and an optical system. The optical system comprises a first &lgr;/4 plate, a lens element, a semi-transmissive mirror, a second &lgr;/4 plate and a polarization-dependent mirror, arranged, in this order, from the incident side for projecting an image to be formed by the image display device on a user's retina.
摘要:
A beam splitter for a digital camera splits light passed through a photographing lens into beams directed to a CCD and a finder optical system. The beam splitter includes at least one optical element provided with a beam splitting surface that is inclined with respect to an optical axis of the photographing lens, and a multi-layer film including a plurality of layers of dielectric materials is formed on the beam splitting surface. The multi-layer film is configured such that the beam splitting surface exhibits a substantially constant reflectivity at least for visible light that is incident on the beam splitting surface at any incident angle within a predetermined range.