JP2002122719A5 - - Google Patents

Download PDF

Info

Publication number
JP2002122719A5
JP2002122719A5 JP2000310923A JP2000310923A JP2002122719A5 JP 2002122719 A5 JP2002122719 A5 JP 2002122719A5 JP 2000310923 A JP2000310923 A JP 2000310923A JP 2000310923 A JP2000310923 A JP 2000310923A JP 2002122719 A5 JP2002122719 A5 JP 2002122719A5
Authority
JP
Japan
Prior art keywords
tot
optical
curvature radius
principal curvature
reflectors
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2000310923A
Other languages
Japanese (ja)
Other versions
JP2002122719A (en
Filing date
Publication date
Application filed filed Critical
Priority to JP2000310923A priority Critical patent/JP2002122719A/en
Priority claimed from JP2000310923A external-priority patent/JP2002122719A/en
Priority to US09/923,793 priority patent/US6618209B2/en
Publication of JP2002122719A publication Critical patent/JP2002122719A/en
Priority to US10/465,682 priority patent/US7054075B2/en
Priority to US11/012,685 priority patent/US20050190456A1/en
Publication of JP2002122719A5 publication Critical patent/JP2002122719A5/ja
Pending legal-status Critical Current

Links

Description

【特許請求の範囲】
【請求項1】 折り曲げられた光軸を有し複数の面形状の変化する反射鏡と、前記反射鏡を駆動する駆動回路と、光学素子を有し、前記反射鏡の光学面には光線が斜入射し前記複数の反射鏡のうちの少なくとも2つについて、前記反射鏡の面形状が下記の式(8)を満たすことを特徴とする光学装置
0.0001≦|HJ/HK|<10000 ・・・(8)
ここで、HJ、HKは、それぞれ前記少なくとも2つの反射鏡における最大の変形量である。
【請求項2】 前記複数の反射鏡のうちの少なくとも1つの面形状が、ある状態で回転非対称であることを特徴とする請求項1に記載の光学装置。
【請求項3】 前記複数の反射鏡のうちの少なくとも1つの面形状が、ある状態で回転対称な曲面であることを特徴とする請求項1に記載の光学装置。
【請求項4】 前記複数の反射鏡の少なくとも2つについて、ある状態で光束収束作用の変化が逆向きであることを特徴とする請求項1乃至請求項3のいずれか1項に記載の光学装置。
【請求項5】 前記複数の反射鏡の間に前記光学素子が存在することを特徴とする請求項1乃至請求項4のいずれか1項に記載の光学装置。
【請求項6】 前記複数の反射鏡のいずれかの面形状が下記の式(2)を満たすことを特徴とする請求項1乃至請求項5のいずれか1項に記載の光学装置。
Δ<(1/5)×D ・・・(2)
ここで、Δは、光束通過範囲内における、前記反射鏡の面形状の二次曲面からのズレ量、Dは、前記反射鏡の光束通過部分の面積と等面積の円の直径である。
【請求項7】 前記反射鏡の面形状が、少なくともある状態で下記の式(12)または式(13)を満たすことを特徴とする請求項1乃至請求項6のいずれか1項に記載の光学装置。
0≦|P I /P TOT |<1000 ・・・(12)
0≦|P V /P TOT |<1000 ・・・(13)
ここで、P I は前記反射鏡の光軸近傍の主曲率半径の中、入射面に近い方の主曲率半径の逆数、P V は前記反射鏡の光軸近傍の主曲率半径の中、入射面に遠い方の主曲率半径の逆数、P TOT =1/f TOT であり、f TOT は全系の焦点距離である。
【請求項8】 前記反射鏡の面形状が、少なくともある状態で下記の式(14)または式(15)を満たすことを特徴とする請求項1乃至請求項7のいずれか1項に記載の光学装置。
0.00001<|ΔP I /P TOT |<1000 ・・・(14)
0.00001<|ΔP V /P TOT |<1000 ・・・(15)
ここで、ΔP I 、ΔP V はそれぞれP I 、P V の変化量であって、P I は前記反射鏡の光軸近傍の主曲率半径の中、入射面に近い方の主曲率半径の逆数、P V は前記反射鏡の光軸近傍の主曲率半径の中、入射面に遠い方の主曲率半径の逆数、P TOT =1/f TOT であり、f TOT は全系の焦点距離である。
[Claims]
[Claim 1] It has a plurality of reflecting mirrors having a bent optical axis and changing surface shapes, a drive circuit for driving the reflecting mirrors, and an optical element, and light rays are obliquely incident on the optical surface of the reflecting mirrors. An optical device characterized in that the surface shape of the reflecting mirror satisfies the following formula (8) for at least two of the reflecting mirrors of the above...
0.0001 ≦ | HJ / HK | <10000 ・ ・ ・ (8)
Here, HJ and HK are the maximum amounts of deformation in the at least two reflectors, respectively.
2. The optical device according to claim 1, wherein at least one surface shape of the plurality of reflectors is rotationally asymmetric in a certain state.
3. The optical device according to claim 1, wherein at least one surface shape of the plurality of reflectors is a curved surface that is rotationally symmetric in a certain state.
4. The optical device according to any one of claims 1 to 3, wherein the change in the luminous flux converging action is opposite in a certain state with respect to at least two of the plurality of reflectors.
5. The optical device according to any one of claims 1 to 4, wherein the optical element is present between the plurality of reflectors.
6. The optical device according to any one of claims 1 to 5, wherein the surface shape of any one of the plurality of reflectors satisfies the following formula (2).
Δ <(1/5) × D ・ ・ ・ (2)
Here, Δ is the amount of deviation of the surface shape of the reflecting mirror from the quadric surface within the light flux passing range, and D is the diameter of a circle having an area equal to the area of the light flux passing portion of the reflecting mirror.
7. The optical device according to any one of claims 1 to 6, wherein the surface shape of the reflecting mirror satisfies the following formula (12) or formula (13) at least in a certain state.
0 ≦ | P I / P TOT | < 1000 ・ ・ ・ (12)
0 ≦ | P V / P TOT | < 1000 ・ ・ ・ (13)
Here, P I Is the reciprocal of the principal curvature radius closer to the incident surface in the principal curvature radius near the optical axis of the reflector, P V Is the reciprocal of the principal curvature radius farther from the incident surface in the principal curvature radius near the optical axis of the reflector, P TOT = 1 / f TOT And f TOT Is the focal length of the entire system.
8. The optical device according to any one of claims 1 to 7, wherein the surface shape of the reflecting mirror satisfies the following formula (14) or formula (15) at least in a certain state.
0.00001 << | ΔP I / P TOT | < 1000 ・ ・ ・ (14)
0.00001 << | ΔP V / P TOT | < 1000 ・ ・ ・ (15)
Here, ΔP I , ΔP V Are P respectively I , P V The amount of change in P I Is the reciprocal of the principal curvature radius closer to the incident surface in the principal curvature radius near the optical axis of the reflector, P V Is the reciprocal of the principal curvature radius farther from the incident surface in the principal curvature radius near the optical axis of the reflector, P TOT = 1 / f TOT And f TOT Is the focal length of the entire system.

ただし、光学系に高性能を要求しな用途では、Δは10mm以内であればよい。 However, in applications do not want to require a high level in the optical system, delta needs to be within 10 mm.

(実施例G)
この実施例は、図53に広角端(a)、望遠端(b)の断面を示すように、絞り124を挟んで、2枚接合レンズからなる負パワーの前群125と、2枚接合レンズと1枚のレンズとからなる正パワーの後群126とからなる回転対称レンズ系の物体側に第1の可変ミラー115を、結像面118とそのレンズ系の間に第2の可変ミラー116を配置して、2つの可変ミラー115、116の非球面形状を連携して変えることでズーミングする例である。
(Example G)
In this embodiment, as shown in FIG. 53, the cross section of the wide-angle end (a) and the telephoto end (b) is shown. A first variable mirror 115 is placed on the object side of a rotationally symmetric lens system consisting of a positive power rear group 126 consisting of a lens and a lens, and a second variable mirror 116 is provided between the imaging surface 118 and the lens system. This is an example of zooming by arranging and changing the aspherical shapes of the two variable mirrors 115 and 116 in cooperation with each other.

また、実施例G〜では、少なくとも2つの可変ミラーの法線同志がねじれの関係になるように可変ミラー及び他の光学素子を配置してもよい(収差は変わらないので)。 Further, in Examples G to K , the variable mirror and other optical elements may be arranged so that the normals of at least two variable mirrors have a twisting relationship (because the aberration does not change).

(実施例A)
可変ミラー 1 2
状態 TE−WE TE−WE
光束通過部分の形状 楕円形 正方形
Δ 0.0016 0.0740
(1/5)×D 0.332 0.8
H 0.04 0.042
HJ/HK 0.952
φ 27 40
I -0.0361 0.0757
V -0.0359 0.1029
ΔPI -0.0361 -0.0757
ΔPV -0.0359 -0.1029
|PI/(PVcosφ)| 1.1273 0.9604
|PI/PTOT| 0.2094 0.4392
|PV/PTOT| 0.2085 0.5969
|ΔPI/PTOT| 0.2094 0.4392
|ΔPV/PTOT| 0.2085 0.5969
(Example A)
Variable mirror 1 2
State TE-WE TE-WE
Shape of light flux passing part Elliptical square Δ 0.0016 0.0740
(1/5) x D 0.332 0.8
H 0.04 0.042
HJ / HK 0.952
φ 27 40
P I -0.0361 0.0757
P V -0.0359 0.1029
ΔP I -0.0361 -0.0757
ΔP V -0.0359 -0.1029
| P I / (P V cos φ) | 1.1273 0.9604
| P I / P TOT | 0.2094 0.4392
| P V / P TOT | 0.2085 0.5969
| ΔP I / P TOT | 0.2094 0.4392
| ΔP V / P TOT | 0.2085 0.5969

【0443】
【発明の効果】
以上説明したように、本発明によれば、例えば光学特性、例えば焦点距離の変
わる光学素子を実現でき、それらを活用することで、機械的な光学素子の移動を
行うことなく、フォーカシング機能、ズーミング機能、小型化、ブレ防止、各種
補正等を実現できる光学装置を実現することがきる。また、フォトニック結晶
を用いることで、より優れたHMDを実現することができる。また、本発明によ
れば、光学素子、光学系の形状、偏心、あるいは、光学素子の屈折率、屈折率分
布等の測定を行うことができる。
[0443]
【Effect of the invention】
As described above, according to the present invention, for example, optical elements whose optical characteristics, for example, focal lengths can be changed can be realized, and by utilizing them, a focusing function and zooming can be performed without mechanically moving the optical elements. function, miniaturization, image stabilization, as possible out to realize an optical apparatus capable of realizing various correction. Further, by using a photonic crystal, a more excellent HMD can be realized. Further, according to the present invention, it is possible to measure the shape and eccentricity of the optical element and the optical system, or the refractive index and the refractive index distribution of the optical element.

JP2000310923A 2000-08-08 2000-10-11 Optical device Pending JP2002122719A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2000310923A JP2002122719A (en) 2000-08-08 2000-10-11 Optical device
US09/923,793 US6618209B2 (en) 2000-08-08 2001-08-08 Optical apparatus
US10/465,682 US7054075B2 (en) 2000-08-08 2003-06-20 Optical apparatus
US11/012,685 US20050190456A1 (en) 2000-08-08 2004-12-16 Optical apparatus

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2000239629 2000-08-08
JP2000-239629 2000-10-11
JP2000310923A JP2002122719A (en) 2000-08-08 2000-10-11 Optical device

Publications (2)

Publication Number Publication Date
JP2002122719A JP2002122719A (en) 2002-04-26
JP2002122719A5 true JP2002122719A5 (en) 2008-03-06

Family

ID=26597542

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000310923A Pending JP2002122719A (en) 2000-08-08 2000-10-11 Optical device

Country Status (1)

Country Link
JP (1) JP2002122719A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4567163B2 (en) * 2000-08-29 2010-10-20 オリンパス株式会社 Observation optical system and imaging optical system
JP5048195B2 (en) * 2001-09-17 2012-10-17 オリンパス株式会社 Optical system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10197797A (en) * 1997-01-06 1998-07-31 Olympus Optical Co Ltd Image formation optical system
JP2000081573A (en) * 1998-06-30 2000-03-21 Olympus Optical Co Ltd Optical system and image pickup device
JP2000267010A (en) * 1999-03-17 2000-09-29 Olympus Optical Co Ltd Optical device

Similar Documents

Publication Publication Date Title
CN111699429B (en) Projection optical system and image display device
JP2002122784A5 (en)
JP3619145B2 (en) Optical system and optical instrument using the same
JP2002296503A (en) Reflection type optical system for projection
JP2001174704A5 (en)
JP2003140049A5 (en)
CN111866328B (en) Camera module and mobile terminal
JPS6252842B2 (en)
KR100758291B1 (en) Refraction type small zoom lens optical system
JP2003241091A5 (en)
JP6383505B2 (en) Optical system having a lens including regions with different characteristics
JP2001154093A5 (en)
JP4139606B2 (en) Projection lens
JP4212721B2 (en) Wide-angle reflective optics
JP2008249838A (en) Imaging optical system
JP2002122719A5 (en)
KR102356807B1 (en) Camera Module
JP2004264685A (en) Variable power optical device
KR20140043636A (en) Super-wide-angle projection optical system and image projectoin apparatus having the same
JPWO2020137884A1 (en) Projection optics and projectors
JP2002287030A5 (en)
TWI831882B (en) Zoom projection lens
JP2003121741A5 (en)
CN113114893B (en) Camera module and electronic equipment
KR100782477B1 (en) Compact zoom lens optical system