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Curved prism, curved prism assembly and processing method thereof

A technology of curved prisms and components, applied in prisms, optical elements, installation, etc., can solve the problems of difficult phase adjustment of prisms, difficult installation and fixation of curved prisms, and achieve good implementability, high reliability, and simple clamping structure Effect

Pending Publication Date: 2018-05-15
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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Problems solved by technology

[0005] In order to solve the problem that the curved prism is not easy to install and fix, and the phase adjustment of the prism is difficult, the invention proposes a curved prism, a curved prism assembly and a processing method thereof

Method used

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  • Curved prism, curved prism assembly and processing method thereof
  • Curved prism, curved prism assembly and processing method thereof
  • Curved prism, curved prism assembly and processing method thereof

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Embodiment Construction

[0028] A curved prism, comprising a concave surface 4 and a convex surface 3, the outer surface of the curved prism is provided with a step chamfer 2, the step chamfer 2 divides the outer surface into a large-diameter side and a small-diameter side; the large-diameter side is a cylindrical truncated body On the outer side, the sectional surface of the cylindrical truncated body is the phase positioning flat end surface 1; the phase positioning flat end surface 1 is parallel to the optical axis 5 of the concave surface. The phase positioning flat end surface 1 is perpendicular to the main section of the optical axis defined by the optical axis 5 of the concave surface and the optical axis 6 of the convex surface. The stepped surface of the stepped chamfer 2 is perpendicular to the optical axis 5 of the concave surface.

[0029] A curved prism assembly, comprising a curved prism, a picture frame 7, a threaded pressure ring 8 and a positioning block 9; the inner hole of the pictu...

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Abstract

The invention relates to a curved prism, a curved prism assembly and a processing method thereof. The problems that the curved prism is difficult to mount and fix and phase adjustment of the prism isdifficult are solved. The curved prism assembly comprises a curved prism, a mirror frame, a threaded ring and a positioning block. The curved prism assembly comprises a concave surface, a convex surface, a phase positioning level end face and a stepped chamfer; the phase positioning level end face is arranged on an outer side face of the prism; a positioning groove parallel to a light axis of theconcave surface is formed in an inner hole of the mirror frame; the positioning block is a cylindrical truncated body and is matched with a cylinder on which a large-diameter side face is positioned;ribs matched with the positioning groove are arranged on an arc surface on the outer side of the positioning block 9; and the threaded ring can be screwed into the inner hole of the mirror frame and is pressed on a stepped surface of the stepped chamfer. The curved prism disclosed by the invention is simple in clamping structure and excellent in applicability, the prism phase does not need to be adjusted in the mounting process, and the reliability is high.

Description

technical field [0001] The invention belongs to the technical field of optical element processing and ultra-precision processing, and relates to a special prism with two spherical surfaces and a processing method thereof. Background technique [0002] Féry.C.H proposed a curved prism based on the principle of the Rowland circle in 1911. The two working surfaces of the prism are spherical, and the two spherical surfaces have a large inclination angle, so that it has both light splitting and imaging capabilities. When applied When used as a spectroscopic element in a spectroscopic system, the structure of the system can be greatly simplified and the quality of the system can be reduced. However, the curved prism is a non-rotationally symmetrical part, which is not easy to clamp and process. [0003] At present, curved prisms are mostly fixed by bonding, as shown in the literature Annalena Altbauer, Markus Glier, Andreas Mezger, etc. high precision assembling process and optom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/04G02B7/18
CPCG02B7/1805G02B5/04
Inventor 胡炳樑李立波赵强孙丽军闫鹏唐兴佳武俊强
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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