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Optical device, telescope, and binocular

A technology for binoculars and optical equipment, applied in the directions of telescopes, optics, optical components, etc., can solve the problems of image fluctuation and/or deterioration, and achieve the effect of good optical performance

Active Publication Date: 2016-06-08
NIKON VISION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the conventional method, if the correction optical system is greatly changed, as described above, the fluctuation and / or deterioration of the image will also increase.

Method used

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  • Optical device, telescope, and binocular
  • Optical device, telescope, and binocular
  • Optical device, telescope, and binocular

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0062] Hereinafter, various embodiments of the aspects of the present invention will be described with reference to the drawings. First, use Figure 1 ~ Figure 2 and Table 1 illustrate the first embodiment of the scheme of the present invention. figure 1 (a) shows the first embodiment (32 apertures) of the observation optical system LS (LS1) used in the telescope TSC and the binoculars BFG. The observation optical system LS1 of the first embodiment includes: the objective optical system OB arranged in order from the object side along the optical axis, the erecting optical system PR for normalizing the image formed by the objective optical system OB, and the Eyepiece optical system EP for observing an image formed by objective optical system OB.

[0063] The objective optical system OB is composed of a first lens group G1 with positive refractive power, a second lens group G2 with positive refractive power, and a third lens group G3 with negative refractive power, which are a...

no. 2 example

[0096] Below, use Figure 3 ~ Figure 4 and Table 2 illustrate the second embodiment of the scheme of the present invention. image 3 (a) shows a second embodiment (32 apertures) of the observation optical system LS (LS2) used in the telescope TSC and the binoculars BFG. The observation optical system LS2 of the second embodiment includes: the objective optical system OB arranged in order from the object side along the optical axis, the erecting optical system PR for normalizing the image formed by the objective optical system OB, and the Eyepiece optical system EP for observing an image formed by objective optical system OB.

[0097] The objective optical system OB is composed of a first lens group G1 with positive refractive power, a second lens group G2 with positive refractive power, and a third lens group G3 with negative refractive power, which are arranged in this order from the object side along the optical axis. The first lens group G1 is composed of a cemented conve...

no. 3 example

[0126] Below, use Figure 5 ~ Figure 6 and Table 3 illustrate the third embodiment of the scheme of the present invention. Figure 5 (a) shows a third embodiment (42 apertures) of the observation optical system LS (LS3) applied to the telescope TSC and the binoculars BFG. The observation optical system LS3 of the third embodiment includes: the objective optical system OB arranged in order from the object side along the optical axis, the erecting optical system PR for normalizing the image formed by the objective optical system OB, and the Eyepiece optical system EP for observing an image formed by objective optical system OB.

[0127] The objective optical system OB is composed of a first lens group G1 with positive refractive power, a second lens group G2 with positive refractive power, and a third lens group G3 with negative refractive power, which are arranged in this order from the object side along the optical axis. The first lens group G1 is composed of a cemented convex...

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PUM

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Abstract

A telescope (TSC) comprises: an objective optical system (OB); an erect optical system (PR) for erecting an image formed by the objective optical system (OB); and an eyepiece optical system (EP) for observing an image formed by the objective optical system (OB) and erected by the erect optical system (PR). The objective optical system (OB) includes, sequentially from an object, a first lens group (G1) having a positive or negative refractive power, a second lens group (G2) having a positive refractive power, and a third lens group (G3) having a negative refractive power. The second lens group (G2) and the third lens group (G3) rotate together about a point (O) on the optical axis of the objective optical system (OB) to correct the image.

Description

technical field [0001] The present invention relates to optical equipment such as telescopes and binoculars, and more specifically, to an anti-vibration function of optical equipment that corrects images in response to hand shake or device vibration, thereby enabling stable observation. Background technique [0002] Conventionally, in order to reduce the influence of vibrations such as hand shake on images, countermeasures have been taken to move or tilt the correction optical system. For example, as a first method of moving or tilting the correction optical system, there is a method of moving the correction optical system in a direction perpendicular to the optical axis of the objective optical system (for example, refer to Patent Document 1). In this method, although the anti-vibration mechanism can be provided simply, the movement and / or deterioration of the image due to the movement of the correction optical system is large, so in order to maintain good optical performan...

Claims

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Application Information

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IPC IPC(8): G02B13/02G02B23/02G02B25/00G03B5/00
Inventor 新井聪
Owner NIKON VISION