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Optical system of 15X industrial microscope

A technology of optical system and microscope lens, which is applied in the field of optical system and can solve the problem of low magnification

Pending Publication Date: 2019-01-01
苏州协尔智能光电有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The other is a microscopic magnification lens specially developed for the installation of industrial cameras. The magnification of this lens is generally within 8X. The standard industrial camera interface has a low magnification.

Method used

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  • Optical system of 15X industrial microscope
  • Optical system of 15X industrial microscope
  • Optical system of 15X industrial microscope

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with accompanying drawing.

[0028] see figure 1 , the optical system of the 15X industrial microscope of the present invention comprises a front lens group, a diaphragm 5, a dichroic prism 6 and a rear lens 7 which are arranged on the main optical axis successively from front to back; wherein:

[0029] The numerical aperture of the object space of the optical system is 0.25;

[0030] The front lens group is made up of lens one 1, glued sheet 2, lens three 3 and lens four 4;

[0031] Lens 1 is a concave-convex lens made of crown glass (h-k9l) with a central thickness of 2.5 mm. Its object plane is a negative meniscus with a radius of curvature of 30.5 mm; the image plane is a positive meniscus with a radius of curvature of 21mm;

[0032] The glued sheet 2 is a biconvex lens with a central thickness of 7.5mm, and is formed by gluing the front eyeglass 21 and the back eyeglass 22; The surface is a po...

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Abstract

The invention discloses an optical system of a 15X industrial microscope. The optical system comprises a front lens group, a diaphragm, a beam splitting prism and a rear lens which are sequentially arranged on a main optical axis from the front to back of the main optical axis; the numerical aperture of the object side of the optical system is 0.25; the front lens group is composed of a lens A, acemented lens, a lens C and a lens D; the lens A is a convexo-concave lens; the cemented lens is a biconvex lens and is formed by means of the cementing of a front mirror and a rear mirror; the lens Cis a convexo-concave lens; the lens D is a biconcave lens; the diaphragm is disposed between the lens C and the lens D; and the rear lens is a convexo-concave lens. According to the optical system ofthe invention, the numerical aperture of the object side space is increased to 0.25, so that the brightness and image resolution of a whole image can be ensured with distortion controlled within 0.06%, and therefore, the matching requirement of an industrial camera of 5-mega-pixel resolution can be satisfied; and the materials and optical intervals of the lenses can be adjusted, the number of thelenses can be increased, so that the optical system can be matched with an industrial camera with a back focal length greater than 17.5 mm.

Description

technical field [0001] The invention relates to an optical system of a microscope lens, in particular to an optical system of a 15X industrial microscope. Background technique [0002] At present, the existing industrial microscope lenses on the market are roughly divided into two categories. One is the traditional industrial microscope group, which is composed of two parts: the objective lens and the eyepiece. The industry standard is the main component of the stereo microscope, visual microscope, metallographic microscope, etc. The main feature of this type of microscope lens is that the optical parameters follow the industry standard. The magnification of the lens is a modular combination, and most of them are It is used with eyepieces for human eye observation. The other type is a microscopic magnification lens specially developed for adding industrial cameras. The magnification of this lens is generally within 8X. The standard industrial camera interface has a low magn...

Claims

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Application Information

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IPC IPC(8): G02B21/02G02B13/00G02B1/00
CPCG02B21/02G02B1/00G02B13/0015G02B13/006G02B13/0065
Inventor 余承桓
Owner 苏州协尔智能光电有限公司
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