A High Resolution Digital Slit Lamp Microscope and Its High Resolution Method
A slit lamp microscope, high-resolution technology, applied in the field of digital slit lamp microscope, can solve the problems of short working distance of shared front objective lens, unfavorable diagnosis and treatment, excessive structure of lenses, etc., achieve excellent imaging quality, and solve the problem of imaging quality The effect of large differences and expanding the scope of application
Active Publication Date: 2021-11-09
FUJIAN JIANGXIA UNIV
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[0003] The present invention improves the above-mentioned problems, that is, the technical problem to be solved by the present invention is that the working distance of the common front objective lens is relatively short at present, which is not conducive to diagnosis and treatment. structure is too complex
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[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0025] Such as Figure 1~2 As shown, a high-resolution digital slit lamp microscope provided in this embodiment includes: a common front objective lens A, a diaphragm, a Galilean telescope B, a dichroic prism C, and a photographic objective lens D.
[0026] Wherein, the shared front objective lens A is vertically placed with a certain eccentricity, specifically, the axes of each lens in the shared front objective lens A are on the same straight line M, and the axes of each lens of the Galilean telescope B and the beam splitting prism C are on the same straight line M. On the same straight line N, the straight line N and the straight line M are vertically dislocated in the same plane and in height, used to transmit the incident light as parallel light, and are used jointly by the same upper and lower optical paths, figure 1 Mainly the...
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The invention provides a high-resolution digital slit lamp microscope and a method for realizing high resolution. The system includes: a common front objective lens A, a diaphragm, a Galileo telescope B, a beam splitting prism C, and a photographic objective lens D. The front objective lens is the basic objective lens of the whole system. The axis of the lens and the axis of the lens of the Galileo telescope B and the lens of the dichroic prism C are placed eccentrically in the longitudinal direction, and are used to transmit the incident light as parallel light; the Galileo telescope is used to realize two-speed variable magnification; the beam splitting prism is placed in the parallel light path behind the Galileo telescope for light splitting, followed by the built-in photographic objective lens and CCD for observation, photography and other functions. The design structure of the invention is simple and reasonable, the working distance of the front objective lens is long, and it is convenient to perform operations such as diagnosis and treatment on patients, and two levels of zoom magnification can be realized by inverting the Galileo telescope, and both low power and high power have high resolution And excellent imaging quality, solve the problem of large difference in low-magnification and high-magnification imaging quality, high-magnification low resolution, and can be widely used in the field of ophthalmology and optics.
Description
technical field [0001] The invention relates to a high-resolution digital slit lamp microscope and a method for realizing high-resolution. Background technique [0002] The slit lamp microscope is mainly used in the field of optometry, such as cataract screening, corneal injury, retinal detachment and other aspects of examination and diagnosis. With the development of digital imaging technology, digital slit lamp microscope has gradually replaced traditional slit lamp microscope due to its high resolution, image storage at any time, and rapid diagnosis. In order to expand the inspection and diagnosis range of the digital slit lamp microscope and make it have a therapeutic function, the examiner often adds other auxiliary components between the human eye and the common front objective lens, which requires the working distance of the common front objective lens to be greater. long enough. However, at present, the working distance of many shared front objective lenses is shor...
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IPC IPC(8): G02B21/02
CPCG02B21/02
Inventor 黄幼萍陈小钢黄淑燕
Owner FUJIAN JIANGXIA UNIV