摘要:
Provided is a compact and bright imaging optical system having a high resolution. The imaging optical system includes three reflectors composed of a first reflector (1), a second reflector (2), and a third reflector (3) that are arranged in this order on an optical path of incident ray so as not to block the incident light. In the imaging optical system, in which light beams reflected by the three reflectors form an image plane (4), a convex mirror is used for any one of the first reflector (1) and the third reflector (3) and a concave mirror is used for the other thereof, and vertexes of a triangular dipyramid (6) are defined in terms of a central chief ray (5) by an appropriate point on the central chief ray (5) that is incident to the first reflection surface, a reflection point of each central chief ray on the first to third reflection surfaces, and an image forming point of the central chief ray. A plane containing three reflection points of the central chief ray on the first to third reflection surfaces coincides with a bonding plane between two triangular pyramids forming the triangular dipyramid (6).
摘要:
The invention relates to a method for producing an optical assembly, comprising at least two optical functional surfaces (5, 6) arranged in a fixed positional relationship to one another on a common supporting structure (9), wherein by means of a processing machine (15), in various process steps, at least two optical functional surfaces (5, 6) and at least one reference structure (13) having a defined and measurable relative position to the optical functional surfaces (5, 6) are produced. The supporting structure (9) remains rigidly connected to the processing machine (15) until said process steps have been completed, and wherein the optical functional surfaces (5, 6) are then measured relative to the at least one reference structure (13), and any deviation from a target shape and target position is determined, after which said process steps are repeated at least once with modified actuation of the processing machine (15). The invention further relates to an optical device comprising an optical assembly produced in this way and to a unit for carrying out such a method.
摘要:
Le domaine général de l'invention est celui des télescopes anastigmats à trois miroirs comportant au moins un premier miroir (M1) concave, un second miroir (M2) convexe et un troisième miroir (M3) concave, les trois miroirs étant agencés de façon que le premier miroir et le second miroir forme d'un objet à l'infini, une image intermédiaire situées entre le second miroir et le troisième miroir, le troisième miroir formant de cette image intermédiaire une image finale dans le plan focal du télescope. Dans l'architecture du télescope selon l'invention, au moins la surface du troisième miroir (M3) concave est une surface ϕ-polynomiale.
摘要:
A coude gimbal structure (30) includes a two-axis gimbal system (36) having an outer gimbal (38) pivotable about a first rotational axis (40), and an inner gimbal (42) supported on the outer gimbal (38) and pivotable about a second rotational axis (44) which intersects the first rotational axis (40) at an intersection point (46). A folded afocal three-mirror anastigmat (56) has a positive-optical-power primary mirror (58), a negative-optical-power secondary mirror (60), and a positive-optical-power tertiary mirror (62), and a first flat fold mirror (64), and a second flat fold mirror (66). A beam path (70) incident upon the primary mirror (58) is reflected from the primary mirror (58) to the secondary mirror (60). The tertiary mirror (62) lies on the second rotational axis (44), the first flat fold mirror (64) redirects the beam path (70) reflected from the secondary mirror (60) to the tertiary mirror (62), and the second flat fold mirror (66) lies at the intersection point (46) and redirects the beam path (70) reflected from the tertiary mirror (62) along the first rotational axis (40).
摘要:
A coude gimbal structure (30) includes a two-axis gimbal system (36) having an outer gimbal (38) pivotable about a first rotational axis (40), and an inner gimbal (42) supported on the outer gimbal (38) and pivotable about a second rotational axis (44) which intersects the first rotational axis (40) at an intersection point (46). A reflective coude optical system has a positive-optical-power primary mirror (58) mounted to the inner gimbal. The primary mirror is directed along a third axis passing through the intersection point and lying perpendicular to both the first and second rotational axes. In one aspect of the invention a coude path length of the reflective coude optical system is about half of the aperture diameter of the primary mirror. In another aspect the structure has an intersection flat fold mirror at the intersection point.
摘要:
There is provided a compact, strong and high-performance catoptric optical system (102). This catoptric optical system has plural optical curved reflective surfaces (M1-M4). A gap (103) between a pair of reflective surfaces (M2,M3), through which light incident upon said catoptric projection optical system passes, is the same gap between a pair of reflective surfaces, through which light exited from the catoptric projection optical system passes.
摘要:
Provided is a compact and bright imaging optical system having a high resolution. The imaging optical system includes three reflectors composed of a first reflector (1), a second reflector (2), and a third reflector (3) that are arranged in this order on an optical path of incident ray so as not to block the incident light. In the imaging optical system, in which light beams reflected by the three reflectors form an image plane (4), a convex mirror is used for any one of the first reflector (1) and the third reflector (3) and a concave mirror is used for the other thereof, and vertexes of a triangular dipyramid (6) are defined in terms of a central chief ray (5) by an appropriate point on the central chief ray (5) that is incident to the first reflection surface, a reflection point of each central chief ray on the first to third reflection surfaces, and an image forming point of the central chief ray. A plane containing three reflection points of the central chief ray on the first to third reflection surfaces coincides with a bonding plane between two triangular pyramids forming the triangular dipyramid (6).