WO2007066379A1 - Reflective optical system and method of controlling reflective optical system - Google Patents

Abstract

A novel reflective optical system having a wide viewing angle and a high resolution is provided. The reflective optical system includes a spherical mirror (11); and a first correcting lens (12), a second correcting lens (13), and a third correcting lens (14) that are provided on the curvature-center side of the spherical mirror sequentially from the incident side. Between the spherical mirror (11) and the third correcting lens (14) is provided a focal plane (15).

Description

 Academics, Academics, Law

 Surgical field

001, Reflexology, related to academic methods.

000 2 In the conventional science systems used for telescopes up to now, there are high-speed systems that cut speed and wide-angle systems that use fisheyes, but there are reflection systems that establish a wide angle and high height. I'm sorry. For example, even with a wide-angle camera such as a satellite, it was not possible to realize it because it cost too much to cover the entire sky. There is also a wide-angle camera that uses a fisheye lens, etc., but since it is an academic system, it has a low detection rate, and the degree of detection is low, so the detectable optical wavelength range is also limited. There was a problem.

 Of Ming

 Problems that Ming is trying to solve

The aim is to provide a reflection system of 000 3, Nokaku and.

 To solve the problem

To achieve the goal of

 A spherical mirror, a lens provided in order from the light entrance side, a lens of 2 and a lens of 3 in this face mirror, and a focus provided between the face mirror and the lens of 3 Related to reflexology.

In the academic system of 005 Ming, since it mainly uses spherical mirrors, it is possible to secure a large viewing angle with a large aperture. On the other hand, in order to obtain a sufficient radius, it is necessary to make the surface mirror small, but since the correction lens described above is provided, it is possible to suppress the large amount of aberration even if the surface mirror is small. it can. Moreover, as described above, since the three lenses are used, by controlling the shape based on the control method of the species, it is possible to freely control the field angle and of the entire reflex system, and the above-mentioned wide range. You will be able to raise the angle.

 Of Ming

As mentioned above, Ming can provide a field of reflection and a reflex system.

The following is an example of the school system of 0008 Ming.

 It is a diagram that visualizes the surface of the lens of the academic system shown in 2. It is a diagram that visualizes the shape of the surface of the second lens of the academic system shown in 3. This is a graph showing the relationship between the spot size d on the focal point and the human incidence angle of the academic system shown in Fig. 4.

 Of the issue

000 school system

 Surface mirror

 2's

 3 2 in

 4 3 in

 Five

 Good for carrying out Ming

00100, other features and points of the present invention will be described in detail based on the best mode.

001 is an example of Ming University. The reflection system shown in Fig. 3 has a spherical mirror and lenses 2, 2 and 3 3 and 4, respectively, which are sequentially provided from the light entrance side in this spherical mirror. Also, between the spherical mirror 3 and lens 4, It has 5 spherical surfaces.

In the reflection system shown in 001, since a spherical mirror is mainly used, it is possible to secure a large viewing angle with a large aperture. On the other hand, in order to obtain sufficient radius, the spherical mirror must be small, but the correction lenses 2 to 4 can suppress the large aberration due to the small size of the spherical mirror. [0113] Next, the shape and position of the spherical mirror dish and lenses 2 to 4 of the reflection system shown in are optimized.

001 The academic system focuses light by the reflection of light by the mirror and the bending of light by the lens. Of the ray by the lens depends on the angle of incidence of the ray with respect to the axis of the ray. The range of movement depends on the quality of. Therefore, in order to optimize it, it is necessary to make a judgment on the basis of a ray having a human incidence angle of 0 rays in the range according to the purpose of use and which focal point is generated as the sum thereof.

An evaluation number can be given as an example of quantifying 001 5. For a given scientific system, the focus of 5 (6) assuming a given value can be evaluated by tracing the ray with an instrument. Then, by collecting various values within the range of the target angle of incidence of 0 and adding them together, the points that actually occur can be reproduced by an experiment with a computer.

Therefore, the optical system, that is, the shape and position of the lens, which minimizes the value of the point reproduced at The optimum optical meter should be able to be determined in the range of 0 for the light entry angle. In the description, the following evaluations are defined in order to quantify the above. This is a well-established umpire. )twenty two ( )

D , 0 is the incident angle of light with respect to the child, and is the wavelength of light.

[0117] Further, in order to optimize the shapes and positions of the face plate and the lenses 2 to 4 as a system in the system based on the above-mentioned evaluation, it is preferable to remove these shapes and positions. In the clear, a ray program in which the wave nature of light is ignored can be used as the above-mentioned data. In this case, the spherical mirror plate and the lens shape of lenses 2-4 and

 twenty two

 Z. A

 R2 h C z 2)

Can be expressed by Where Z is the distance from the reference plane to the surface, is the distance from the axis of the child, is the child, is the fourth complement, and is the sixth complement. , C is the 8th complement, which is the position of the surface on the optical axis.

Therefore, by changing the number in Eq. (2) within the range of 0 and the incident angle of the observed light, we obtain the number when the evaluation expressed by Eq. Therefore, it is possible to determine the optimum shape and position of the face mirror dish and the lenses 2 to 4 within the range of the entry angle.

In the reflection system shown in 0019, if the angle of the line of the spherical mirror plate and the lenses 2 to 4 changes in the range of 25 degrees, and if the line of light also has the emission line spectrum between ~ 4 of the rays, the spherical mirror It is defined by the numbers 2 to 4 and the numerical values shown in.

002 S face Zo Pa aes

 88 R

 2 58 R 43306

 A 9 3768X 0

 3 5 R 89383

A 57635X 0

4 5 R 89383

 5 58 R 43 06

 A 9 376 00

 324485X

 6 88 R

 7 9 38 R 8974

 (mm)

002 In addition, the leftmost surface of the 2nd to 4th surface of,

 It corresponds to the surface of the mirror 5. That is, the surface means the space at the line of the lens 2, and the surface 2 means the surface of the mirror 2 at the surface 2. 3 means 3 in line 3 of 2 and surface 4 means 4 on the side of the 2 3 mirror. 5 means 5 in the line of 3 in 4 and surface 6 is the mirror of 3 in 4

Means 6 7 means 7 in the line of the spherical mirror. 002 In addition, in the above, there is a symmetry relation between the lens 2 3 and the lens 4 4 with respect to the lens 2 3 and it passes through the center of the correction lens 2 to 4 of the academic system shown in . Furthermore, a plane perpendicular to the optical axis that passes through the midpoint between the two surfaces of the 2nd lens 3 of the spherical mirror and the optical axis, and the 2nd surface of 2nd lens 3 of the correction lenses 2 to 4 is used. It is a plane that passes through the midpoint of the two points where the and the optical axis intersect and is perpendicular to the optical axis.

002 means that the radius of curvature is infinite, that is, it is a flat plate with no curvature.

002 2 is a visual representation of the 2 of 2 of 3 and 3 is a visual representation of the 3 of the 3 of 2. Referring to 2 3 for example, when the change of the nech is set to, the height from the reference plane can be set to 5 °, the surface can be sufficiently nipped, and the compensating lens 2 3 is formed from the net. I know what I can do. However, the same effect can be obtained with the correction lens 4, and in this case also, the correction lens 4 can be formed from the predetermined surface.

002 4 is the reflection shown in, defined by the number of

 It is a graph showing the relationship between the spot size d and the human glancing angle on the line 5 of light in the scientific system between the wavelengths and the line of light due to the element. It is clear from 4 that a fine spot size of the following size is maintained up to the range where the human angle of incidence 0 is 25 degrees. Therefore, it can be seen that the following can be obtained in the 5 ° wide angle circle. Therefore, by preparing a reflection system as shown in, it is possible to monitor the entire sky with every degree.

Although the description has been given in detail above based on the modes of carrying out the invention with reference to specific examples, the present invention is not limited to the above, and all modifications and alterations can be made without departing from the scope of the invention. It is possible.

Use above, 0028, especially in combination with photo diodes, disaster prevention, defense, It can be preferably used industrially in fields such as science, ta, and inspection.

Claims

Wanted  A face mirror, a lens provided sequentially from the entrance side of the light in this face mirror, a second lens and a third lens are provided, and a focal point is provided between the first mirror and the third lens. This is a reflexology system. The shape and position of the two-sided mirror and lens 2 R  Z A C z ()  2 R2 Z surface of the surface, from the reference plane to the axis of the child, of the child, of the 4th order of complement, of the 6th order of complement, of the C 8th order of complement, of the surface on Z) The academic system of the claim, characterized by being represented. The shape and position of the three-sided mirror and  twenty two)  D According to claim 2, characterized in that, based on the evaluation number (of the incident angle of light with respect to zero), the value is optimized so as to be the minimum.  Academic system. The academic system according to claim 2 or 3, characterized in that the shape and position of the four dots in the above-mentioned entry are optimized as Z8, 8, and C in the above formula (). The shape and position of the surface mirror of the lens of 5 are  , Z 8 8, 0 433 6, g · 3768X, 3 · 24485X C, characterized in that it is characterized by the deviation of claims 2 to 4 Academic system. 6 2 The shape and position in the above-mentioned entry are optimized as Z 5, 8938 3, 5 763 5 2 939 2 C 4 7 85 in the above formula (), claim 2 The gap between 5 and 5 The shape and position of the surface mirror of the lens of 7 2 are optimized as Z ・ 5, 8938 3, 5 763 5X 2 93923 C 4 ・ 7 85 in the above formula (). The academic system according to claim 1. Claim 2 ~, characterized in that the shape and position of the 8 3 nds in the above-mentioned entry are optimized as Z 58, 433 6, 9 3768X 3 2448 5X C in the above formula (). Academic discipline described in Part 1 of 7. The shape and position of the mirror of the lens of 9 3 are optimized as Z 8 · 8, and C in the above formula (), according to any one of claims 2 to 8. Academic system.  The shape and position of the 0-faced mirror in the above-mentioned notation are Z 9 3 in the above formula ().  The academic system according to any one of claims 2 to 9, characterized by being optimized as 0, 8, 897.4, C.  According to claim 1, the academic system described in claim 1 is characterized in that at least one of the above-mentioned 2nd and 3rd one is a lens.  2. The academic system according to claim 1, wherein the spot size is 25 or more and the spot size is 2 or less.  In the three-sided mirror and this one, the first side  And 2 and 3 and 3,  Setting a focus between the mirror and the lens of 3; Check the shape and position of the mirror and lens. 3 z Z ()

Z: is expressed by the formula of (the surface of Z, the surface of Z, the axis of the child of the reference plane, the child's 4th complement, the 6th complement, and the C 8th complement of Z). ,  Based on the formula () of the surface mirror and the lens, the shape and position are described in 4 Ⅸ ( Based on the evaluation number (of the incident angle of light with respect to the zero), the value is optimized so that the value is minimized. The method of controlling an academic system according to claim 3, characterized in that the shape and position of the four dots in the above-mentioned entry are optimized as Z 8.8, and C in the above formula (). The shape and position of the mirror of the lens of 5 is Z 8 8  433 6, g 0  ・ The method for controlling an academic system according to claim 3 or 4, characterized in that it is optimized as 3768X and 3 / 24485X C. The shape and position of the 6 2nd lens in the above-mentioned entry are optimized as Z 5, 8938 3, 5 763 5 2 939 2 C 4 7 85 in the above formula (). The difference between the following methods of academic system. The shape and position of the surface mirror of the lens of 7 2 are optimized as Z ・ 5, 8938 3, 5 763 5X 2 93923 C 4 ・ 7 85 in the above formula (). The method of controlling an academic system according to claim 3-6.  Claim 3 ~, characterized in that the shape and position of the 8 3 nds in the above-mentioned entry are optimized as Z 5 8, 433 6, 9 3768X 3 2448 5X C in the above formula (). Method of academic system described in 1 of 7.  9. The shape and position of the mirror of the lens of 9 3 are optimized as Z 8 · 8, and C in the above formula (), according to any one of claims 3 to 8. Academic method. The shape and position of the 20-faced mirror in the above-mentioned notation are Z 9 3  The method of controlling an academic system according to any one of claims 3 to 9, characterized by being optimized as 0, 8, 897.4, and C. 2 to 3, characterized in that, based on the equation (2) and the optimum using the above equation (2), one of the above-mentioned lens and the lens of the above-mentioned lens 3 is formed from the lens. The method of controlling the academic system described in Section 1. 22. The method according to claim 3, wherein the spot size is 25 or more and the spot size is less than or equal to 22.