摘要:
The invention relates to a quasi-monolithic polarization beam splitter assembly for splitting a UV beam into two partial beams, comprising two optical prisms (1) that form a polarization beam splitter (2) and a holding part (6) having no optically effective surfaces, which holding part is connected to the polarization beam splitter (2). The invention also relates to a method for producing such a polarization beam splitter assembly, which is characterized in that even after mounting the polarization beam splitter assembly in an optical mount, the partial beams passing therethrough undergo only a very slight wavefront deformation.
摘要:
A mirror device may include: a mirror including a base plate, a reflective film on a first surface of the base plate, and a plurality of first protrusions on a second surface of the base plate; a plurality of support parts for respectively supporting the plurality of the first protrusions, each support part having a groove formed therein for guiding the first protrusion; and a plurality of clamps for respectively pressing the plurality of the first protrusions against the respective grooves in the plurality of the support parts.
摘要:
To provide a mirror structure capable of reflecting incident light with good efficiency and is excellent in reliability. In a mirror structure which is used under an environment that the maximum irradiance of incident light is 5 kW/m 2 or more and has an area of 0.2 m 2 or more, the mirror structure is characterized in that the mirror comprises a mirror, a supporting member and a resin-made adhesive sheet to glue the mirror to the supporting member, and is structured such that a dielectric multilayer is formed at least on an incident light side surface of a plate-shaped substrate and the mirror has an average reflectance ratio 95% or more for incident light having a wavelength in a range of 400 to 1000 nm.
摘要翻译:提供能够以高效率反射入射光并且可靠性优异的镜面结构。 在入射光的最大辐照度为5kW / m 2以上且面积为0.2m 2以上的环境下使用的镜面结构中,镜面结构的特征在于镜子包括镜子, 支撑构件和树脂制粘合剂片将镜子粘合到支撑构件上,并且构造成使得至少在板状基板的入射光侧表面上形成电介质多层膜,并且反射镜具有平均反射率比 对于波长在400〜1000nm范围的入射光,为95%以上。
摘要:
An optical apparatus comprising a first mirror (12), a second mirror (14), and at least one support (30) for holding the second mirror in substantially a predetermined position relative to said first mirror (12), wherein said at least one support (30) comprises at least one actuator (32) arranged to adjust the position of the second mirror (14), and said optical apparatus further comprises at least one light source (40a-40-c) rigidly fixed to the first mirror (12) in a predetermined orientation for providing a beam of light (42a-42c) directed at said second mirror (14), at least one corresponding alignment sensor (46a-46c) for detecting the beam of light (44a-44c) reflected from said second mirror (14), and arranged to provide an output signal indicative of the position of the incident reflected beam, and a controller (50) arranged to receive said output signal, and to thereby control said actuator (32) to adjust the position of the second mirror (14).
摘要:
Un système permettant de stabiliser une structure rigide (1) vis-à-vis de déformations thermoélastiques comprend un réseau de raidisseurs (2) connectés à une face postérieure (S2) de la structure rigide, et une structure émissive (10) disposée en vis-à-vis de ladite face postérieure (S2). Le système comprend en outre un ensemble d'isolation radiative (3) disposé entre les raidisseurs (2) et la structure émissive (10), sans masquer des portions (P2) de la face postérieure de la structure rigide par rapport à la structure émissive. Des gradients de température présents dans les raidisseurs et orientés perpendiculairement à la surface postérieure de la structure rigide sont alors réduits, et les déformations thermoélastiques de ladite structure rigide sont diminuées en conséquence. La structure rigide peut être un miroir primaire de télescope susceptible de recevoir un flux thermique variable.
摘要:
A prism unit comprises a prism having at least one optical surface in its inside, and a prism base disposing the prism. The prism base includes at least three seating surfaces that are attached to a surface orthogonal to the optical surface of the prism, and a seating surface bonded part that is bonded to the prism by an adhesive. A groove is formed between the seating surface and the seating surface bonded part.
摘要:
This invention relates to improvements in thermal management in deformable mirrors. In particular, this invention relates to a deformable mirror comprising a heat spreader used to distribute thermal energy evenly across the mirror. Diamond material 104, on account of its extremely high thermal conductivity, is a preferred choice of heat spreader which permits build up of thermal energy in the mirror 100 to be quickly and evenly distributed across the entire mirror surface, increasing the working life of the mirror.
摘要:
A mirror having improved resistance to heat distortion and loss of dimensional stability when exposed to heat radiation. The mirror has a substrate of glass or plastic having front and back surfaces which can be of similar or different shape, and is coated with similar or dissimilar low-emissivity reflective layers on both surfaces. Radiation is reflected by the back surface (away from the mirror) thereby reducing the amount of energy which is absorbed at the back surface of the mirror. This equalizes the temperature through the mirror and reduces thermally-induced warping of the mirror.
摘要:
Pour fixer un organe optique tel qu'un filtre (12) sur un support (10), notamment afin d'effectuer des observations infrarouge sur un satellite artificiel, on utilise un dispositif (18) comportant des brides (20) vissées dans le support (10) et dont les extrémités opposées sont respectivement en appui sur le support et sur le filtre, une cale (26) de répartition d'efforts étant interposée entre chaque bride (20) et le filtre (12). L'effort de serrage est calibré grâce à une ou plusieurs rondelles élastiques (28) placées entre la tête de chaque vis de fixation (22) et la bride correspondante. Des lames séparatrices (24), de préférence en or, sont placées entre le filtre et les pièces adjacentes, au droit des cales (26).