Abstract:
The present invention relates to an optical aiming device for aiming a shot gun which upon firing a shot provides a shot pattern, the optical aiming device comprises a base part having a longitudinal extension, a distal and a proximal end (12, 13) and comprising means for attaching the aiming device (10) to the shot gun (100). The optical aiming device further comprises a mirror (15) or lens having a maximum height (H) and a maximum width (W). A light source (20) being arranged to project light on the mirror (15) or lens, wherein the mirror (15) or lens is arranged to reflect or redirect at least parts of the light (A) in a first direction. The projected light forms a reticle (50). The reticle (50) covers a target area (52) and the target area (52) corresponds to the shot pattern at a predetermined distance from the mirror (15) or lens. The optical aiming device provide for an aiming device which gives the shooter an improved perception of the distance between the target and the shooter and the spread of the charge of hailstones when firing.
Abstract:
An apparatus is controlled to detect a location of an object (O1) on a touch surface of a panel (1). An input scanner arrangement (BS1-BS2, 12A-12B) introduces at least two beams (B1, B2) of radiation into the panel (1) for propagation by internal reflection, and sweeps the beams (B1, B2) inside the panel across a sensing area. An output scanner arrangement (10A-10B, SD1-SD2) is synchronized with the input scanner arrangement so as to receive the beams (B1, B2) from the input scanner arrangement while they are swept across the sensing area and to direct the beams (B1, B2) onto at least one radiation detector. Thereby, each beam (B1, B2) is introduced and received on opposite ends of the sensing area. A data processor is connected to the radiation detector and operated to identify the location based on an attenuation of the beams (B1, B2) caused by the object (O1) touching the touch surface within the sensing area.
Abstract:
Method to arrange and adjust a laser that is stable with respect to external and internal influences, and which comprises at least three optical components consisting of a laser element (1), which can generate optical radiation within a wavelength band lambda 1 - lambda 2, an optical collimator (2) that inside the laser collimates radiation emitted from the laser element, and a plane reflection grating (3) with parallel grating grooves, arranged such that the latter together with a flat reflection surface, which can be one end surface of the laser element, forms a resonator, that selects the radiation wavelength emitted by the laser. At least one optical component, which for instance can be (1), (2) or (3) is fixedly mounted in a holder, that for the purpose of adjusting the laser to a lasing condition can be turned about an axis, that is fixed in the device, such that the angle PHI between two directions, which are defined by the direction along the grating grooves (G) and by the direction of collimation (LO) of the radiation, varies within an interval that contains PHI = 90 DEG and such that collimated radiation from the laser element, which at PHI = 90 DEG is reflected back from the grating and returns to the radiation emitting portion of the laser element via the collimator (2), has a selected wavelength that lies within the band lambda 1 - lambda 2.
Abstract:
The present invention relates to a device for lash free positioning of especially components used in optical and optoelectronical equipments relatively to a fixed reference unit (29) using at least two interconnected elastic blocks (11, 12) each consisting of two base elements placed at a distance from each other and interconnected by elastic elements (17, 19), constituting a cantilevered system as related to one of the base elements. To the system a holder (22) is attached, on which the components to be positioned are fixed, that each elastic block (11, 12) is essentially rigid along a main axis (z) of the elastically undeformed cantilevered system, and is elastic in directions perpendicular to the axis, that the device has mechanisms for adjustment which apply adjustable forces between the basic element (13), or between some other to the latter fixedly joined element, and the cantilevered system or an arm fixed to this system, which latter may be the holder (22), acting in chosen directions, which translate or turn the component holder (22), when the elastic elements (17, 19) are elastically deformed.
Abstract:
This invention relates to a measurement device (6), for optically measurement a property of a measurement object (12; 15; 18), the measurement device comprising a main resonator (11) having a first and a second reflecting end (1, 2) defining a cavity (7) having an effective optical cavity length, an optical gain element (3) for generating light travelling along an optical beam path between the first and second reflecting ends (1, 2), and a dispersive focusing resonator element (5) which is positioned along the optical beam path between the optical gain element (3) and the second reflecting end (2), whereby the measurement object is arranged to be at least partly positioned within the optical beam path of the main resonator, and whereby the measurement device further comprises a detection means (8) for detecting a characteristic of light emitted from the main resonator, the valve of the detected characteristic being a measure of a property of the measurement object.
Abstract:
Method and apparatus to ensure tuning without mode hopping of the resonator frequency and tuning of the Q-value of an optical resonator of the type comprising a partially reflecting resonator mirror (2) and a movable reflecting optical grating, with grooves (GR) parallel to the resonator mirror, intended to function as a wavelength selective reflector and which may comprise optical elements between the mirror and the grating, said optical elements being intended for collimation, amplification (4) and filtering of the radiation in the resonator, so that when changing the resonance wavelength ( lambda ) of the resonator or its Q-value, the grating is moved in such a way that a line (C) on the grating which is defined at a tuned initial position of the resonator by the intersection of the plane of grating grooves (M) and the virtual mirror plane (5) of the resonator mirror, remains at a distance less than lambda /4 from the virtual mirror plane, which as a result of chromatic dispersion in the resonator media slides in distance to the fixed mirror with said resonator wavelength during the movement.
Abstract:
The present invention relates to an optical aiming device (10) of the type having a light source (20) and a reflective mirror (15) or lens reflecting or projecting an image of a reticle to the eye of a user The optical aiming device (10) comprises a light sensor arrangement (40) being arranged to cooperate with the light source (20) to enable the adjustment the light intensity of the image of the reticle as a function of the detected light The light sensor arrangement (40) comprises at least one lens (43) having at least one convex surface (44) and at least one detector (50) wherein the detector (50) is arranged on a distance (f) from the lens (43) so as to detect light from a predetermined area (60) on a predetermined distance from the lens (43) The optical aiming device provides for an aiming device which can adjust the intensity of the projected or reflected image of the reticle to thereby provide for smooth adjustments as the user moves the reticle, i e the aim of the aiming device, across the target and/or target scene
Abstract:
The present invention relates to an optical aiming device (10) of the type having a light source (20) and a mirror (15) or lens reflecting or projecting an image of a reticle, i.e. a sight, to the eye of a user. The optical aiming device (10) comprises means for attaching the optical aiming device (10) to a weapon (100), such as a shot gun. The optical aiming device comprises a base part (11) comprising the opticals and at least one attachment member (50, 70) for attaching the base part to the weapon (100). The base part and the at least one attachment member (50, 70) are displaceable with respect to each other. The relative displacement can effectively be used to dampen the recoil force imparted to the base part carrying the sensitive opticals of the optical aiming device, e.g. by at least one force absorbing member (80, 90).
Abstract:
The present invention relates to an optical aiming device (10) of the type having a light source (20) and a mirror (15) or lens reflecting or projecting an image of a reticle, i.e. a sight, to the eye of a user. The optical aiming device (10) comprises means for attaching the optical aiming device (10) to a weapon (100), such as a shot gun. The optical aiming device comprises a base part (11) comprising the opticals and at least one attachment member (50, 70) for attaching the base part to the weapon (100). The base part and the at least one attachment member (50, 70) are displaceable with respect to each other. The relative displacement can effectively be used to dampen the recoil force imparted to the base part carrying the sensitive opticals of the optical aiming device, e.g. by at least one force absorbing member (80, 90).
Abstract:
An apparatus is controlled to detect a location of an object (O1) on a touch surface of a panel (1). An input scanner arrangement (BS1-BS2, 12A-12B) introduces at least two beams (B1, B2) of radiation into the panel (1) for propagation by internal reflection, and sweeps the beams (B1, B2) inside the panel across a sensing area. An output scanner arrangement (10A-10B, SD1-SD2) is synchronized with the input scanner arrangement so as to receive the beams (B1, B2) from the input scanner arrangement while they are swept across the sensing area and to direct the beams (B1, B2) onto at least one radiation detector. Thereby, each beam (B1, B2) is introduced and received on opposite ends of the sensing area. A data processor is connected to the radiation detector and operated to identify the location based on an attenuation of the beams (B1, B2) caused by the object (O1) touching the touch surface within the sensing area.