JPH0255734B2 - - Google Patents
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- Publication number
- JPH0255734B2 JPH0255734B2 JP16582785A JP16582785A JPH0255734B2 JP H0255734 B2 JPH0255734 B2 JP H0255734B2 JP 16582785 A JP16582785 A JP 16582785A JP 16582785 A JP16582785 A JP 16582785A JP H0255734 B2 JPH0255734 B2 JP H0255734B2
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- Prior art keywords
- lens
- mirror
- light
- light source
- optical axis
- Prior art date
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- 230000003287 optical effect Effects 0.000 claims description 10
- 238000003384 imaging method Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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Description
【発明の詳細な説明】
〔概要〕
光を鏡で反射してレンズに入射するタイプのレ
ンズの射影特性測定装置における鏡位置制御装置
を鏡の近傍に鏡と連動して傾斜すると共に、透明
部と不透明部とが形成された２つの遮蔽体を設
け、遮蔽体内に設けた２つの光源を検出すること
により、鏡の位置の適否を判定するようにして、
装置の構造を簡単にし、且つ作動を正確なものと
した。[Detailed Description of the Invention] [Summary] In a projection characteristic measuring device for a lens of the type in which light is reflected by a mirror and then incident on the lens, a mirror position control device is tilted in conjunction with the mirror in the vicinity of the mirror, and a transparent portion is provided. and an opaque part are provided, and by detecting two light sources provided in the shielding bodies, it is determined whether the position of the mirror is appropriate,
The structure of the device is simplified and the operation is accurate.
この発明はレンズの射光特性を測定するレンズ
の射影特性測定装置、特に投光器の光を鏡で反射
してレンズに入射するタイプのレンズの射影特性
測定装置における鏡位置の制御装置に関する。
The present invention relates to a lens projection characteristic measuring device for measuring the light emission characteristics of a lens, and more particularly to a mirror position control device in a lens projection characteristic measuring device of the type in which light from a projector is reflected by a mirror and then incident on the lens.
近年レンズと撮像素子とからなるカメラ装置を
画像入力手段を用いて環境認識を行なう技術が用
いられる。このように技術分野においてはレンズ
の射影特性を知らなければ正確な環境認識を行な
うことはできない。
2. Description of the Related Art In recent years, a technique has been used in which a camera device including a lens and an image sensor performs environment recognition using an image input means. As described above, in the technical field, it is not possible to accurately recognize the environment without knowing the projection characteristics of the lens.
これは、ある方向からレンズに入射した光がレ
ンズにより撮像面のどの位置に結像するかを知
り、この結果に基づいて像の結像個所により光の
入射方向を認識するようにするものである。 This method determines where on the imaging surface the lens forms an image of light incident on the lens from a certain direction, and based on this result, the direction of incidence of the light is recognized based on the point where the image is formed. be.
このレンズ射影特性を測定するレンズの射影特
性測定装置としては第８図に示すように、レンズ
１を付けたテレビカメラ２を回転台３上に載置し
て光軸Ａとを中心として回転できるようにし、平
行光を照射する投光器としてコリメータ４をレン
ズ１の光軸Ａに対して斜めに固定し、光軸Ａの延
長線上を照射するようにする一方、この平行光の
上方にその照射方向と平行に移動軸６を設けると
共に、その移動軸６には、この移動軸６に沿つて
移動する移動部材７を介して鏡５を平行光中に位
置するように取り付けたもので、またこの鏡５は
移動部材７に対して、光軸に垂直な方向を傾斜軸
として傾斜可能なものとしている。そしてレンズ
１に入射した光がテレビカメラ２の撮像面のどの
位置に結像したかが測定され、光の入射方向と光
の結像する撮像面の位置との対応を知ることがで
きる。 As shown in FIG. 8, a lens projection characteristic measuring device for measuring the lens projection characteristics is such that a television camera 2 with a lens 1 attached thereto is placed on a rotary table 3 and rotated about the optical axis A. The collimator 4 is fixed obliquely to the optical axis A of the lens 1 as a projector that irradiates parallel light, and the irradiation direction is set above the parallel light. A moving axis 6 is provided parallel to the moving axis 6, and a mirror 5 is attached to the moving axis 6 via a moving member 7 that moves along the moving axis 6 so as to be positioned in the parallel light. The mirror 5 can be tilted with respect to the movable member 7 with the tilt axis being in a direction perpendicular to the optical axis. Then, the position on the imaging surface of the television camera 2 where the light incident on the lens 1 is imaged is measured, and it is possible to know the correspondence between the direction of incidence of the light and the position on the imaging surface where the light is imaged.
ここで、このレンズの射像特性の測定を自動的
に行なうようにするため、第１０図に示すように
鏡５の傾斜、鏡５の移動、テレビカメラ２の回転
を夫々モータ２０，２１，２２で行なうと共に、
鏡の傾斜角、鏡位置、カメラの回転角を夫々測定
器２３，２４，２５で測定し、この測定値とテレ
ビカメラ２の撮像面における光の結像位置を測定
装置２６で測定した値とに基づいて、各モータの
制御を制御装置２７で行なうようにするようにし
ている。 Here, in order to automatically measure the projection characteristics of this lens, as shown in FIG. 22, and
The inclination angle of the mirror, the mirror position, and the rotation angle of the camera are measured by measuring devices 23, 24, and 25, respectively, and these measured values and the imaging position of light on the imaging plane of the television camera 2 are combined with the values measured by the measuring device 26. Based on this, each motor is controlled by the control device 27.
そして、このレンズの射像特性を自動的に測定
する場合にあつては、まず鏡５の傾斜角を測定す
る。鏡５の傾斜角を定めれば、鏡５の移動軸６方
向への移動は平行光に対して平行であるから、レ
ンズ１への入射光の余緯度θは一義に定まるし、
また入射光の方位角は、テレビカメラ２の回転に
より一義に定めることができる。しかしながら、
入射光の余緯度及び方位角が定まつたとしても、
この入射光が正しくレンズ１表面に入射しなけれ
ば（例えば第８図の状態）、入射光は撮像面に結
像しないか或は光量が不足して、正確なレンズ射
影特性を測定することはできない。そこで、鏡５
の移動軸６方向の位置を制御する必要がある。 When automatically measuring the projection characteristics of this lens, the inclination angle of the mirror 5 is first measured. If the inclination angle of the mirror 5 is determined, the movement of the mirror 5 in the direction of the movement axis 6 is parallel to the parallel light, so the extra latitude θ of the light incident on the lens 1 is uniquely determined,
Further, the azimuth angle of the incident light can be uniquely determined by the rotation of the television camera 2. however,
Even if the co-latitude and azimuth of the incident light are fixed,
If this incident light does not enter the lens 1 surface correctly (for example, the state shown in Figure 8), the incident light will not form an image on the imaging surface or the light intensity will be insufficient, making it impossible to accurately measure the lens projection characteristics. Can not. Therefore, mirror 5
It is necessary to control the position in the direction of the movement axis 6.
従来、この鏡５の移動軸６方向の制御装置とし
て、例えば鏡５の傾斜角における所定の鏡５の移
動軸６上の位置を予め計算により求めておき、こ
の値を制御装置２７に入力しておく一方、第８図
に示すように、移動軸６と平行に計測レール８を
設ける一方、移動部材７に固定され一体となつて
移動すると共に計測レール８に摺接して鏡５の位
置を検出する位置センサ９を設けて鏡５の位置を
制御するものがある。 Conventionally, as a control device for the direction of the movement axis 6 of the mirror 5, for example, the position of a predetermined mirror 5 on the movement axis 6 at the inclination angle of the mirror 5 is calculated in advance, and this value is input to the control device 27. On the other hand, as shown in FIG. 8, a measuring rail 8 is provided parallel to the moving axis 6, and a measuring rail 8 is fixed to the moving member 7 and moves as one, and slides into contact with the measuring rail 8 to determine the position of the mirror 5. Some devices control the position of the mirror 5 by providing a position sensor 9 for detection.
また鏡５の位置を制御する他の装置としては、
第９図に示すように、テレビカメラ２の撮像面の
画像により光が撮像面に結像しているかを直接検
出するようにするものがある。 Other devices for controlling the position of the mirror 5 include:
As shown in FIG. 9, there is a system that directly detects whether light is focused on the imaging surface using an image of the imaging surface of the television camera 2.
第９図において、Ψはレンズ１の視野を示すも
のであり、第５図に示した場合の撮像面の像を模
式的に示している。図において撮像面にはコリメ
ータ４からの光が鏡５を介して不充分に結像して
おり、この光を測定装置で検出して、充分な光を
得るよう鏡４を光軸方向（図中ａで示した）に移
動して光が鏡５の中央となるように制御するよう
にする。 In FIG. 9, Ψ indicates the field of view of the lens 1, and schematically shows the image of the imaging surface in the case shown in FIG. In the figure, the light from the collimator 4 is insufficiently imaged on the imaging surface via the mirror 5. This light is detected by the measuring device, and the mirror 4 is moved in the optical axis direction (see the figure) in order to obtain sufficient light. (indicated by a) to control the light so that it is centered on the mirror 5.
ところで、上述した第１の鏡の制御装置におい
ては、予め鏡５の角度に対応する位置を計算して
おかなければならず煩雑であるし、また移動する
部材に位置センサを設けなければならず装置が複
雑となる。
By the way, in the first mirror control device described above, the position corresponding to the angle of the mirror 5 must be calculated in advance, which is complicated, and a position sensor must be provided on the moving member. The equipment becomes complicated.
また上述した第２の装置にあつては、測定レン
ズの視野が広いものにあつては、鏡、光等の撮像
面における像の大きさは極めて小さいものとな
り、上述のような制御を正確に行なうことは難し
いものとなる。 In addition, in the second device described above, if the measurement lens has a wide field of view, the size of the image on the imaging surface of the mirror, light, etc. will be extremely small, making it difficult to perform the above-mentioned control accurately. It will be difficult to do.
本発明は、上述した問題点を解決して、レンズ
の射影特性測定装置における鏡位置制御装置の構
造を簡単なものとすると共にその制御を正確に行
うことができるようにするため、レンズ光軸に対
して傾斜し、レンズ光軸の上方への延長線の一点
に向け光を照射する投光器と、この光の照射方向
に沿つて移動かつ取り付け角度可変で上記光をレ
ンズに向け反射する鏡と、レンズを回転させる回
転台とからなるレンズの射影特性測定装置におい
て、光源を有し、光源を含む平面との交線を透明
部と不透明部との境界線とする２つの遮蔽体を両
遮蔽体の上記光源を含む２平面が同一平面となり
互いの透明部と不透明部とが隣りあわせ且つ両光
源を結ぶ直線を上記鏡の傾斜軸と平行となるよう
配設すると共に、上記光源と境界線とを含む平面
を常に光の反射方向と一致するよう遮蔽体を上記
光源を結ぶ直線を回動中心として回動する遮蔽体
駆動装置を設け、上記光源のレンズへの入射光に
基づいて鏡位置の適否を判定するようにした。
The present invention solves the above-mentioned problems and simplifies the structure of a mirror position control device in a lens projection characteristic measuring device, and enables accurate control of the lens optical axis. a projector that is tilted relative to the lens and emits light toward a point on an upward extension of the optical axis of the lens, and a mirror that moves along the direction of the illumination of the light and whose mounting angle is variable to reflect the light toward the lens. , a projection characteristic measurement device for a lens, which includes a rotary table for rotating the lens, and includes two shielding bodies each having a light source and whose boundary line between a transparent part and an opaque part is a line of intersection with a plane containing the light source. The two planes of the body including the light source are on the same plane, and the transparent and opaque parts are adjacent to each other, and the straight line connecting both light sources is parallel to the tilt axis of the mirror, and the light source and the boundary line A shield driving device is provided that rotates the shield around a straight line connecting the light sources so that the plane containing the light source always matches the direction of light reflection, and the mirror position is determined based on the light incident on the lens from the light source. It is now possible to judge the suitability of
第１図及び第３図に示すように、レンズ１に余
緯度θで投光器であるコリメータ４から光を照射
する場合、遮蔽体１０，１１の透明部及び不透明
部の境界線と光源とを含む平面は常に鏡の光反射
方向と一致しているから、鏡５が適正位置である
場合（第１図位置）には、レンズ１の方向から
観察すると光源１３，１４は遮蔽体１０，１１の
透明部１０ａ，１１ａと不透明部１０ｂ，１１ｂ
との境界線上に位置し（第３図２）光源を２つ観
察できる。しかし、鏡位置が不適正な場合（第１
図位置）には、２つ光源１３，１４のうち一
方の光源は遮蔽体１０又は１１の不透明部１０
ｂ，１１ｂに覆われ、他の光源しか観察すること
ができない。これをテレビカメラ２で検出して鏡
の位置の適否を判断することができ、鏡の位置の
制御を行なう。
As shown in FIGS. 1 and 3, when the lens 1 is irradiated with light from the collimator 4, which is a projector, at the extra latitude θ, the boundary line between the transparent part and the opaque part of the shielding bodies 10 and 11 and the light source are included. Since the plane always coincides with the light reflection direction of the mirror, when the mirror 5 is in the proper position (the position in FIG. Transparent parts 10a, 11a and opaque parts 10b, 11b
(Fig. 3, 2), and two light sources can be observed. However, if the mirror position is inappropriate (first
In the figure position), one of the two light sources 13 and 14 is connected to the opaque part 10 of the shield 10 or 11.
b, 11b, and only other light sources can be observed. This can be detected by the television camera 2 to determine whether the position of the mirror is appropriate, and the position of the mirror can be controlled.
以下、本発明に係るレンズ射影特性測定装置に
おける鏡位置制御装置の実施例を説明する。
Embodiments of the mirror position control device in the lens projection characteristic measuring device according to the present invention will be described below.
第１図乃至第６図は本発明に係るレンズ射影特
性測定装置における鏡位置制御装置の実施例を示
すものである。 1 to 6 show an embodiment of a mirror position control device in a lens projection characteristic measuring device according to the present invention.
本実施例において投光器であるコリメータ４
は、例えば基準となる十字線を平行光として、レ
ンズ光軸の延長上に向け照射するように、またレ
ンズ１を取り付けたテレビカメラ２は、回転台３
を介して基板（図示していない）に取り付けられ
ている。そして鏡５が従来と同様の移動部材（図
示していない）を介して移動軸６に取り付けられ
ている。尚、これらの部材は、レンズ１、テレビ
カメラ２等の大きさ等によつて位置関係を変える
ことができるものとしている。 Collimator 4 which is a projector in this embodiment
For example, the television camera 2 to which the lens 1 is attached is set to the rotary base 3 in such a way that the reference crosshair is used as parallel light and the beam is irradiated onto the extension of the optical axis of the lens.
It is attached to a substrate (not shown) via. A mirror 5 is attached to a moving shaft 6 via a conventional moving member (not shown). Note that the positional relationship of these members can be changed depending on the size of the lens 1, television camera 2, etc.
そして、鏡５には、第４図に示すように、例え
ば遊星歯車装置で構成される遮蔽体駆動装置１２
と円筒形の遮蔽体１０，１１が鏡５の傾斜軸に連
結されており、鏡５を鏡傾斜モータ２０で傾斜さ
せると、遮蔽体１０，１１は円筒の軸を中心とし
て鏡５の２倍の角度回転する。そして、この遮蔽
体１０，１１は、第２図に示すように、円筒形状
の部材で、この円筒の軸を含む平面及び軸に垂直
な平面によつて透明部１０ａ，１１ａ及び不透明
部１０ｂ，１１ｂが互いに隣り合うよう分割され
２つの遮蔽体１０，１１として形成され、鏡５が
コリメータ４に対して垂直の状態で、透明部１０
ａ，１１ａと不透明部１０ｂ，１１ｂとの境界線
１０ｃ，１１ｃと軸を含む平面が鏡５の反射面に
対して垂直となるように遮蔽体駆動装置１２に取
り付けられている。また、この遮蔽体内には円筒
の軸の位置に２つの光源１３，１４が配置されて
いる。 As shown in FIG.
and cylindrical shielding bodies 10 and 11 are connected to the tilting axis of the mirror 5, and when the mirror 5 is tilted by the mirror tilting motor 20, the shielding bodies 10 and 11 are twice as large as the mirror 5 around the cylindrical axis. Rotate the angle. As shown in FIG. 2, the shielding bodies 10 and 11 are cylindrical members, and transparent parts 10a and 11a and opaque parts 10b, 11b is divided into two adjacent shielding bodies 10 and 11, and the transparent part 10 is formed with the mirror 5 perpendicular to the collimator 4.
The mirror 5 is attached to the shield driving device 12 so that a plane including the axis and the boundary lines 10c and 11c between the mirror 5 and the opaque parts 10b and 11b is perpendicular to the reflective surface of the mirror 5. Furthermore, two light sources 13 and 14 are arranged within this shielding body at the position of the axis of the cylinder.
従つて、本実施例では第５図に示すように遮蔽
体１０，１１の透明部１０ａ，１１ａ及び不透明
部１０ｂ，１１ｂ境界線１０ｃ，１１ｃと光源１
３，１４を含む面は鏡５の傾斜角φの２倍の回転
角2φを有するから常に反射光と同一の方向とな
る。それ故、本実施例において２つの透明部１０
ａ，１１ａと不透明部１０ｂ，１１ｂとの位置関
係を第４図に示すようにすれば、鏡５が適正位置
よりコリメータ４側（第１図）の場合は、第３
図１に示すように遮蔽体１１の透明部１１ａを通
過した光源１４のみが観察される。また鏡５の位
置が適正で反射光が適正にレンズ１に入射してい
る場合（第１図）は第３図２に示すように２つ
の遮蔽体１０，１１の境界線１０ｃ，１１ｃ上に
２つの光源１３，１４を観察することができる。
更には、鏡５の位置が遠方の場合（第１図）は
第３図３に示すように第１の場合と逆となる。 Therefore, in this embodiment, as shown in FIG.
Since the surface including 3 and 14 has a rotation angle 2φ which is twice the inclination angle φ of the mirror 5, the direction is always the same as that of the reflected light. Therefore, in this embodiment, two transparent parts 10
If the positional relationship between a, 11a and the opaque parts 10b, 11b is made as shown in FIG.
As shown in FIG. 1, only the light source 14 that has passed through the transparent portion 11a of the shield 11 is observed. In addition, when the mirror 5 is properly positioned and the reflected light is properly incident on the lens 1 (Fig. 1), the reflected light is on the boundary line 10c, 11c between the two shielding bodies 10, 11 as shown in Fig. 3, 2. Two light sources 13, 14 can be observed.
Furthermore, when the mirror 5 is located far away (FIG. 1), the situation is opposite to the first case, as shown in FIG. 3.
従つて、これらの像をテレビカメラ２で検知し
て鏡位置を自動的に制御することができる。即ち
テレビカメラからの情報を制御装置２７に入力し
て第６図に示すフローチヤートに従つて鏡移動モ
ータ２１を制御する。 Therefore, by detecting these images with the television camera 2, the mirror position can be automatically controlled. That is, information from the television camera is input to the control device 27 to control the mirror moving motor 21 according to the flowchart shown in FIG.
それ故、本実施例によれば、移動する可動部材
に設ける装置は簡易なものであるし、また鏡位置
の適否の検出をテレビカメラで光学的に行なうか
ら構成を単純に、且つ制御を正確なものとするこ
とができる。 Therefore, according to this embodiment, the device installed on the moving movable member is simple, and since the appropriateness of the mirror position is optically detected using a television camera, the configuration is simple and the control is accurate. It can be made into something.
尚、本実施例においては遮蔽体は鏡の傾斜軸と
同軸として設けたがこれは第７図に示したように
傾斜軸と平行であつてもよい。この実施例では遮
蔽体の取付位置が異なり遮蔽体駆動装置が通常の
歯車装置となつている他は、第１の実施例と同一
であるので、同一の部材には同一の符号を付して
その詳細な説明は省略する。 In this embodiment, the shield is provided coaxially with the tilt axis of the mirror, but it may be parallel to the tilt axis as shown in FIG. This embodiment is the same as the first embodiment except that the mounting position of the shield is different and the shield drive device is a normal gear device, so the same members are given the same reference numerals. A detailed explanation thereof will be omitted.
また上記実施例では、遮蔽体は円筒形状のもの
としたがこれは他の形状としてもよいのは勿論で
ある。 Further, in the above embodiments, the shielding body is cylindrical in shape, but it goes without saying that it may have another shape.
以上説明したように、本発明によれば、レンズ
の射影特性測定装置における鏡位置制御装置を以
上のよう構成したから、可動部材に測定器等を設
ける必要がなく、また検出を光学的に行なうよう
にしたため、制御装置の構造を簡単なものとする
ことができる他、鏡の制御の精度を高いものとす
ることができるという効果を奏する。
As explained above, according to the present invention, since the mirror position control device in the lens projection characteristic measuring device is configured as described above, there is no need to provide a measuring device or the like on the movable member, and detection is performed optically. As a result, the structure of the control device can be simplified, and the mirror can be controlled with high precision.
第１図は本発明に係るレンズ射影特性装置にお
ける鏡位置制御装置を示す側面図、第２図は本発
明に用いられる遮蔽体を示す斜視図、第３図１，
２，３は本発明に係る装置を使用した場合におけ
るレンズによる結像状態を示す図、第４図は本発
明の実施例に使用する遮蔽体を示す斜視図、第５
図は使用時における鏡と遮蔽体の状態を示す側面
図、第６図は鏡移動モータの制御方式を示すフロ
ーチヤート、第７図は遮蔽体の他の例を示す斜視
図、第８図は従来の制御装置の例を示す側面図、
第９図は従来の他の例を示す図、第１０図は従来
及び本発明における制御装置の制御系を示すブロ
ツク図である。
１……レンズ、２……テレビカメラ、３……回
転台、４……コリメータ（投光器）、５……鏡、
６……移動軸、１０，１１……遮蔽体、１０ａ，
１１ａ……透明部、１３，１４……光源。
FIG. 1 is a side view showing a mirror position control device in a lens projection characteristic device according to the present invention, FIG. 2 is a perspective view showing a shield used in the present invention, and FIG.
2 and 3 are diagrams showing the image formation state by the lens when using the device according to the present invention, FIG. 4 is a perspective view showing the shielding body used in the embodiment of the present invention, and FIG.
The figure is a side view showing the state of the mirror and shield during use, Figure 6 is a flowchart showing the control method of the mirror moving motor, Figure 7 is a perspective view showing another example of the shield, and Figure 8 is a A side view showing an example of a conventional control device,
FIG. 9 is a diagram showing another conventional example, and FIG. 10 is a block diagram showing the control system of the control device in the conventional and the present invention. 1...Lens, 2...TV camera, 3...Rotating table, 4...Collimator (projector), 5...Mirror,
6... Movement axis, 10, 11... Shielding body, 10a,
11a...Transparent part, 13, 14...Light source.
Claims (1)
方への延長の一点に向け光を照射する投光器と、 この光の照射方向に沿つて移動可能かつ傾斜角
度可変で上記光をレンズに受け反射する鏡と、 レンズを光軸を中心として回転させる回転台と
からなるレンズの射影特性測定装置において、 光源を有し、光源を含む平面との交線を透明部
と不透明部との境界線とする２つの遮蔽体を両遮
蔽体の上記光源を含む２平面が同一平面となり互
いの透明部と不透明部とが隣りあわせ且つ両光源
を結ぶ直線を上記鏡の傾斜軸と平行となるよう配
設すると共に、上記光源と境界線とを含む平面を
常に光の反射方向と一致するよう遮蔽体を上記光
源を結ぶ直線を回動中心として回動する遮蔽体駆
動装置を設け、 上記光源のレンズの入射光に基づいて鏡位置の
適否を判定するようにしたことを特徴とするレン
ズの射影特性測定装置における鏡位置制御装置。[Claims] 1. A projector that is inclined with respect to the optical axis of the lens and irradiates light toward a point extending forward of the optical axis of the lens; A lens projection characteristic measuring device comprising a mirror that receives and reflects the light on the lens and a rotary table that rotates the lens around an optical axis has a light source, and a line of intersection with a plane containing the light source is defined as a transparent part. The two planes containing the light source of the two shielding bodies, which are the boundary lines with the opaque part, are the same plane, and the transparent part and the opaque part are adjacent to each other, and the straight line connecting both light sources is the tilt axis of the mirror. and a shield drive device that rotates the shield about a straight line connecting the light sources so that the plane including the light source and the boundary line always coincides with the direction of light reflection. A mirror position control device in a lens projection characteristic measuring device, comprising: determining whether or not the mirror position is appropriate based on light incident on the lens from the light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16582785A JPS6227640A (en) | 1985-07-29 | 1985-07-29 | Mirror position control device in projection characteristic measuring apparatus of lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16582785A JPS6227640A (en) | 1985-07-29 | 1985-07-29 | Mirror position control device in projection characteristic measuring apparatus of lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6227640A JPS6227640A (en) | 1987-02-05 |
| JPH0255734B2 true JPH0255734B2 (en) | 1990-11-28 |
Family
ID=15819753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16582785A Granted JPS6227640A (en) | 1985-07-29 | 1985-07-29 | Mirror position control device in projection characteristic measuring apparatus of lens |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6227640A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6561327B2 (en) * | 2016-03-10 | 2019-08-21 | パナソニックＩｐマネジメント株式会社 | Optical inspection apparatus, lens barrel manufacturing method, and optical inspection method |
-
1985
- 1985-07-29 JP JP16582785A patent/JPS6227640A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6227640A (en) | 1987-02-05 |
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| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |