JPS58100106A - High resolution image pickup system - Google Patents

Abstract

PURPOSE:To obtain high resolution pictures by arranging optical fibers along the curvature of a focal plane. CONSTITUTION:Optical fibers 13 are arranged in a curved focal plane 12 formed by an optical system 10. A light image is sent to a multielement sensor 4 to obtain an accurate image-formed picture on the focal plane 12 from incident light 1. to obtain the optical fibers arranged in the focal plane, the reference surface 18 manufactured by polishing fibers fixed in an arrow as shown in figure 4 along the focal plane 15 of the optical system and also in conformity to the focal plane 16 of the optical system as shown in figure 5 is combined with the mask bored in accordance with the number of elements of said multielement sensor 17.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a high-resolution imaging system comprised of an optical system and a multi-element sensor (8@asor) in an imaging device mounted on an earth observation satellite.

This type of conventional configuration is shown in Figure 1, and in Figure 1,
is the incident light, 2 is the optical system of the imaging device, 3 is the focal plane of the optical system, 4 is the multi-element element 13@n5or%5 is the angle of view of the optical system, and in this way the focal plane of the optical system is determined by its properties. Top, curved.

Further, this focal plane shift increases as the field angle 5 of the optical system increases. Arranging the linear multi-element 8@m5orO focal plane has a negative impact on the quality of the acquired image, so it must be done in consideration of the curvature of the focal plane. The arrangement of multi-element S@ctor on this focal plane is shown in FIG.
9 indicates the shift to the focal plane corresponding to each bit of the multi-element S@cIor, and 9 indicates the deposition tolerance range St-, which includes the mounting error of the multi-element 8@IIIor and the image quality of the acquired image.

But today, j! To meet this demand, there is a demand for a wider angle of view and higher resolution in order to obtain a wider field of view, and conventional configurations have had the following drawbacks.

In other words, in order to widen the field of view and increase the resolution, the aperture of the single lens system should be increased, and several multi-element elements 8 @amo should be added to its focal plane.
Although it is necessary to place r accurately, the conventional configuration Kjij-
As the aperture of the optical system increases, the focal plane also shifts,
Besides, it becomes difficult to arrange the multi-element 5@amor.

The present invention is a rounded optical system that solves this problem.

An object of the present invention is to provide a high-resolution imaging method showing the configuration of a multi-element 8Insor.

This will be explained below with reference to the drawings.

Figure 3 shows an example of the configuration of the present invention.
Incident light %1 (1 optical system, 11 indicates the angle of view s12, the focal plane blB of the optical system is the original 7 eyes arranged along the focal plane, and 4 indicates the multi-element S@neer.

According to this configuration, an optical 7 eyeper is arranged on the focal plane of the optical system in accordance with the number and quantity of the multi-element 5 sensor elements.

By connecting, it is possible to obtain an image formed on the accurate focal plane of the incident light. In other words, it is possible to obtain a high-resolution image by using an optical fiber that corrects the curvature of the focal plane due to the widening of the angle of view.

Note that the optical fiber placed on the focal plane of the optical system can be realized by the following method.

In Fig. 1K-4, the optical zeiper, which is arranged in a fixed manner, is aligned with the focal plane 15 of the optical system to perform spherical polishing according to the number of multi-element S or 14 elements. It was. Second
In Fig. 5, the reference plane 18 manufactured in accordance with the focal plane 16 of the optical system and the number of elements of the multi-element 8@asor 17 are drilled and a 9-square g-combination 1 element 7 taper is inserted into the i-sphere. put in.

The solution is to fix it along the reference plane.

As explained above, the optical zeiper is
By using m, all the information on the focal plane can be transferred to l vs. IK multi-element 8.
It is possible to correspond to each element of @amor, and it is also possible to widen the angle of view of the optical system and obtain high-resolution images.

[Brief explanation of the drawing]

Figure 111 shows the conventional optical system and multi-element 8 sensor O configuration diagram, Diagram 2 shows the focal plane and arrangement of multi-element S@port S1,
Figure 3 is a configuration diagram of the optical system of the present invention, a multi-element S@ElsorO, and a diagram of the arrangement method of the $4,5 WAFi optical 7-eyeper array on the focal plane. In Figure 1, l: incident light, 2: optical system%, 3: focal plane%, 4: multi-element S@n1or, 5 knee angle%, 6-8: error between multi-element 5 sensor and focal plane, 9: multi-element , 5
Tolerable mounting range for sensor, lO: optical system (aperture: large), l: angle of view (wide angle of view), 12: focal plane, 13 binary fiber, 14 dual optical fiber, 15: reference plane, 16: reference plane , 17: original fiber, 18 two reference planes. 19 knee f school. And≠! Figure 2

Claims (1)

[Claims] It includes an optical system of a radiation needle that images a target object, a configuration of a multi-element sensor, an original Zeiper included therein, and an arrangement method thereof, and corrects the curvature of the focal plane caused by widening the angle of view of the radiation needle. In order to do this, a single fiber 1. A high-resolution imaging method characterized by placement along the O-curvature of the focal plane.