The present invention relates to a method for controlling land surface temperature using stratospheric airships and a reflector. In the method for controlling land surface temperature using stratospheric airships and a reflector, four corners are connected to a lower end of support lines coupled to be disposed vertically downward from a plurality of airships, and sunlight is reflected by a reflector unfolded into a tetragonal shape in the air, wherein the reflecting surface of the reflector plate is maintained at an angle to remain perpendicular to an incident angle of sunlight to shield, or redirect, the land surface from incident sunlight.

Disclosed is an apparatus for coupling an SiC reflex mirror, configured to mount an SiC reflex mirror formed on a plurality of points and having a cylindrical portion on one surface thereof, to a mounting plate. The apparatus includes: an insertion portion having a vertical portion having a curved shape and attached to inside of the cylindrical portion, and a horizontal portion integrally formed with the vertical portion and formed to cross the vertical portion; an adhesive provided between the vertical portion and an inner circumferential surface of the cylindrical portion, and configured to attach the insertion portion to the cylindrical portion; a fixing portion having one end fixed to the horizontal portion, having another end fixed to the mounting plate, and configured to fix the SiC reflex mirror to the mounting plate; and a coupling member configured to fix the fixing portion to the insertion portion.

Disclosed is an apparatus for coupling an SiC reflex mirror, configured to mount an SiC reflex mirror formed on a plurality of points and having a cylindrical portion on one surface thereof, to a mounting plate. The apparatus includes: an insertion portion having a vertical portion having a curved shape and attached to inside of the cylindrical portion, and a horizontal portion integrally formed with the vertical portion and formed to cross the vertical portion; an adhesive provided between the vertical portion and an inner circumferential surface of the cylindrical portion, and configured to attach the insertion portion to the cylindrical portion; a fixing portion having one end fixed to the horizontal portion, having another end fixed to the mounting plate, and configured to fix the SiC reflex mirror to the mounting plate; and a coupling member configured to fix the fixing portion to the insertion portion.

A flexure including a bipod strut pair extending from a base and a titanium-zirconium-niobium alloy, which includes titanium, about 13.5 to about 14.5 wt. % zirconium, and about 18 to about 19 weight % (wt. %) niobium. The titanium-zirconium-niobium alloy has a congruent melting temperature of about 1750 to about 1800° Celsius (° C.).

In an embodiment, a solar energy system includes multiple photovoltaic modules, each oriented substantially at a same angle relative to horizontal. The angle is independent of a latitude of an installation site of the solar energy system and is greater than or equal to 15 degrees. The solar energy system defines a continuous area within a perimeter of the solar energy system. The solar energy system is configured to capture at the photovoltaic modules substantially all light incoming towards the continuous area over an entire season.

In an embodiment, a solar energy system includes multiple photovoltaic modules, each oriented substantially at a same angle relative to horizontal. The angle is independent of a latitude of an installation site of the solar energy system and is greater than or equal to 15 degrees. The solar energy system defines a continuous area within a perimeter of the solar energy system. The solar energy system is configured to capture at the photovoltaic modules substantially all light incoming towards the continuous area over an entire season.

The invention relates to stereo projection systems for displaying stereopaired images on mirror-spherical or parabolic screens and for collectively watching a stereo effect without using stereo spectacles. Said invention makes it possible to continuously dynamically superimpose the projections of the left and right picture frames of a steropair with the user's left and right eyes, respectively. Such impositions are carried out simultaneously and independently for each viewer. The technical result is attainable by that the inventive stereo projection system comprises stereo projectors which are individually allocated to each viewer and in-series connected, a monitoring system for continuously and accurately determining the viewers' eye positions, a self correcting device, video-correcting devices, automatic drives for the mechanical self-correction of the stereo projectors and the system optical elements, units which are used for forming stereopair projected images in the stereo projector and which are coupled with the video-correcting device for the video-correction of the optimal parameters of the screen images. The inventive system makes it possible to carry out the self- and video-correction in an integral manner in such a way that the comfort of the stereo effect viewing is maximally satisfied.

The invention relates to a deformable mirror comprising a deformable membrane (2) having a reflecting face (3) and being mounted on a support provided with at least one actuator designed to deform said membrane (2), said actuator comprising at least one movable member (7) fixed to the membrane (2) via an adhesive joint (8) and having a main body (11) located away from the adhesive joint (8), said body being extended by an active part (12) that penetrates said adhesive joint (8) partly or completely in such a way that the adhesive spreads over the concealed face (4), parallel to the reflecting face (3), and adheres at least partly to the side wall (14) of said active part (12), this part (12) forming a tip (32) limiting the bonding footprint on said reflecting face (3). Deformable mirror for adaptive optics.

The invention relates to a deformable mirror comprising a deformable membrane (2) having a reflecting face (3) and being mounted on a support provided with at least one actuator designed to deform said membrane (2), said actuator comprising at least one movable member (7) fixed to the membrane (2) via an adhesive joint (8) and having a main body (11) located away from the adhesive joint (8), said body being extended by an active part (12) that penetrates said adhesive joint (8) partly or completely in such a way that the adhesive spreads over the concealed face (4), parallel to the reflecting face (3), and adheres at least partly to the side wall (14) of said active part (12), this part (12) forming a tip (32) limiting the bonding footprint on said reflecting face (3). Deformable mirror for adaptive optics.

An adjustable support assembly for an object to be accurately positioned relative to a base, in particular for a secondary mirror of an optical mirror telescope, has at least one support structure connected to the base and to the object. The support structure has at least two struts extending in a non-parallel manner relative to each other, where each strut has associated therewith a drivable actuator element in such a way that the actuator element applies a force onto the strut that deflects the strut transversely to the longitudinal extension thereof. The support structure may be supported in an articulated manner relative to the base.