KR20110081511A - Cassegrain binocular - Google Patents

Abstract

PURPOSE: Cassegrain binoculars is provided to possibly observe landscapes for sightseeing, sports and leisure purposes, to possibly observe craters on the moon as binoculars for ground and astronomy, to offer clean images differently from those with refraction binoculars and to be used for military purposes. CONSTITUTION: Reflective binoculars are manufactured by adding two parabolic mirrors of the cassegrain binoculars. Then, an image is formed by passing through perpendicular prisms, and compared to the refracted binoculars, a high magnification is obtained with a short container. minute reflection binoculars miniaturizes binoculars and thus in spite of its short length, clean images of a high magnification can be obtained. A cassegrain paraboloid and a prism are interlinked. The craters on the moon can be clearly seen with short portable refracted binoculars.

Description

Cassegrain binoculars

The present invention is a method that can obtain a high magnification by making binoculars using a reflective parabolic mirror without using the objective lens of the binoculars

Small, compact, easy to carry, portable, high magnification and clear look

Zoom is used for high magnification binoculars. Most of them use zoom on the alternative lens side.

The astronomical telescope doesn't use zoom because it looks blurry when more lenses are used. Therefore, the larger the refractive binoculars, the better the performance.

The best performance is to put two right angle prisms between the alternative lens and the objective lens.

The outer objective lens is a wider binocular than the inside. There is a three-dimensional effect and the view is good. It is about 7 to 20 times better and the higher the magnification, the larger the diameter of the objective lens and the larger the volume.

There is a handheld ultra-high magnification binocular, but it is also a zoom and can't make clear and precise observations.

The present invention relates to binoculars to make binoculars that are easy to carry, short and perform well beyond the limits of refractive binoculars.

From smallest to large sized binoculars, there is no chromatic aberration, high magnification, and clear and clear observation.

The present invention uses a parabolic mirror (reflector) on the side of a binocular objective lens to compensate for blurring due to chromatic aberration when using a high magnification of a refractive binocular.

Parabolic mirrors have no chromatic aberration and are precise, so high magnification can be obtained by using short focus.

Casegrain binoculars are a sight-seeing object for tourism and leisure, a binocular astronomical binocular, a lunar crater, a clear and clear image not seen with articulated binoculars, and good for military use.

Fig. 2 Casegrain Outline
1 top view
Drawing 1
According to the present invention, a casee binocular is a case where two caseegrain telescopes are put together and made into a small handheld.
Parabolic reflectors are high-magnification reflective binoculars Casegrain binoculars because they have little chromatic aberration and perform much better than refraction even with an alternative lens focus.
If you use a long focal length of the reflector to lengthen the length of the barrel on the reflector, you can create clear image quality and high magnification without chromatic aberration, but the length should be portable.

The accompanying drawings will be described in detail as follows.

7 is a flat mirror, a well polished flat mirror

Number 1 is a parabolic mirror (concave mirror)

The performance of the telescope depends on the performance of this parabolic mirror.

The surface of the parabolic mirror is aluminum coated

Casegrain parabolic mirrors have a hole in the center for viewing from behind like an articulated telescope

In this drawing, the aperture was 76m / m and the focal length was 280mm.

The alternative lens is short focal but the shorter the focal length, the higher the magnification.

The larger the aperture, the brighter the screen.

Although the aperture below it is possible, the performance decreases when the diameter of the reflecting telescope decreases. The surface of the reflector is polished much more precisely than a normal lens. Polishing produces a parabolic mirror

A diameter of less than 10cm can be seen well as a spherical surface, but more than 10cm must be cut by a parabolic mirror. If a parabolic mirror is put in a vacuum coating machine, the surface of the parabolic mirror is coated with aluminum. The objective lens is called a parabolic mirror.

Casegrain telescopes reflect light reflected from parabolic mirrors into convex mirrors to shorten the barrel and magnify the image of the object established by the prism with an alternative lens.

Drawing 1
Number seven is a plane. Light passes through a plane. Go straight to number one.
No. 1 is a parabolic mirror, reflecting light. Light goes straight to No. 2
(Refractively speaking objective)
No. 2 is a convex mirror, which reflects from the convex mirror, and light comes back through the hole in the middle of parabolic mirror 1
No. 3 is a right angle prism. Reflects and passes through No. 4. A right angle prism intersects two 90˚s. It functions to straighten the image of an inverted object.
Passing through prism 4, parabolic reflector focus occurs here. Magnify the reflected image reflected by this parabolic mirror with a short focus of the alternative lens.
5 Eyepiece Light passes through 5 through 6
6 Eyepiece Light passes through No. 6 and is observed by the eye.
Drawing 2
10 Eye goniometer When it is folded, it bends and the eye distance is adjusted.
11 Refocus Control Rotates to focus both parabolic alternatives and to parabola
It plays the role of matching the image of the object while looking with eyes
12 Vision Adjuster Most eyes are on the right side because of incorrect frequency
There are 2 right angle prisms inside a prism barrel
14 Body rests to the left and right of the body restraint
15 Left and right connecting pillars
16 Reflector Contain mirror tube Includes mirror and convex mirror

Claims (1)

How to combine two Casegrain parabolic mirrors into reflective binoculars
CASEGIN Binocular Binoculars Combine two parabolic mirrors to form reflective binoculars, followed by two right-angle prisms to establish an image of the object, and achieve a high magnification compared to refractive binoculars in a short barrel.
Precise reflective binoculars for miniaturizing binoculars to create high magnification and clear image quality, even with short lengths
Steps at which the Casegrain Parabolic Surface and Prism Connect
Clear hand-held astronomical moon crater with short portable reflective binoculars

Images