-
公开(公告)号：DE60314686T2
公开(公告)日：2007-12-06
申请号：DE60314686
申请日：2003-05-27
Applicant: SUMITA OPTICAL GLASS
Inventor： MARUYAMA FUMIO
IPC: H05B39/04
Abstract: The invention relates to a light source unit control method and a light source control unit, and a light source unit comprising a filament lamp with a characteristic of having a light quantity changing almost in proportion to a control voltage, which comprise: a current detection sensor connected in series to the lamp; a multiplication circuit for generating a voltage Vw proportionate to the product of a terminal voltage V of the lamp and an output voltage V1 of said current detection sensor; a square root circuit for generating a voltage V2 proportionate to the square root of the control voltage V1; an error amplifier circuit for controlling an error to the minimum by comparing the output voltage Vw of said multiplication circuit and the output voltage V2 of said square root circuit; and a constant voltage power source unit for supplying an electric power to the filament lamp, the unit being connected to an output terminal of the error amplifier circuit, wherein the light quantity of the lamp is controlled by controlling the control voltage.
-
公开(公告)号：DE60314686D1
公开(公告)日：2007-08-16
申请号：DE60314686
申请日：2003-05-27
Applicant: SUMITA OPTICAL GLASS
Inventor： MARUYAMA FUMIO
IPC: H05B39/04
Abstract: The invention relates to a light source unit control method and a light source control unit, and a light source unit comprising a filament lamp with a characteristic of having a light quantity changing almost in proportion to a control voltage, which comprise: a current detection sensor connected in series to the lamp; a multiplication circuit for generating a voltage Vw proportionate to the product of a terminal voltage V of the lamp and an output voltage V1 of said current detection sensor; a square root circuit for generating a voltage V2 proportionate to the square root of the control voltage V1; an error amplifier circuit for controlling an error to the minimum by comparing the output voltage Vw of said multiplication circuit and the output voltage V2 of said square root circuit; and a constant voltage power source unit for supplying an electric power to the filament lamp, the unit being connected to an output terminal of the error amplifier circuit, wherein the light quantity of the lamp is controlled by controlling the control voltage.
-
公开(公告)号：AT366506T
公开(公告)日：2007-07-15
申请号：AT03253310
申请日：2003-05-27
Applicant: SUMITA OPTICAL GLASS
Inventor： MARUYAMA FUMIO
IPC: H05B39/04
Abstract: The invention relates to a light source unit control method and a light source control unit, and a light source unit comprising a filament lamp with a characteristic of having a light quantity changing almost in proportion to a control voltage, which comprise: a current detection sensor connected in series to the lamp; a multiplication circuit for generating a voltage Vw proportionate to the product of a terminal voltage V of the lamp and an output voltage V1 of said current detection sensor; a square root circuit for generating a voltage V2 proportionate to the square root of the control voltage V1; an error amplifier circuit for controlling an error to the minimum by comparing the output voltage Vw of said multiplication circuit and the output voltage V2 of said square root circuit; and a constant voltage power source unit for supplying an electric power to the filament lamp, the unit being connected to an output terminal of the error amplifier circuit, wherein the light quantity of the lamp is controlled by controlling the control voltage.
-
公开(公告)号：JP2012238105A
公开(公告)日：2012-12-06
申请号：JP2011105442
申请日：2011-05-10
Applicant: Sumita Optical Glass Inc , 株式会社住田光学ガラス
Inventor： WATABE HIROMI , MARUYAMA FUMIO , TAGAWA MASAFUMI
Abstract: PROBLEM TO BE SOLVED: To provide a fingerprint collecting device and a fingerprint collecting method which collect fingerprint images in a wide range with high accuracy.SOLUTION: A fingerprint collecting device 100 has a shooting sensor unit 101; a focusing optical system 112f; an optical system driving mechanism 113; a control portion 102; and an image processing portion 103. The shooting sensor unit 101 forms a subject image. The focusing optical system 112f focuses the subject image on a light-receiving surface of the shooting sensor unit. The optical system driving mechanism 113 displaces at least the focusing optical system 112f along an optical axis. The control portion 102 makes the optical system driving mechanism and the shooting sensor unit alternately and repeatedly execute the displacement and image pick-up of the focusing optical system. The image processing portion 103 separately calculates focus degrees of a plurality of small areas configuring the picked-up image. The image processing portion 103 extracts a part image in each small area from a single picked-up image. The image processing portion 103 combines the extracted part images to form the whole image.
Abstract translation: 要解决的问题：提供以高精度收集宽范围的指纹图像的指纹采集装置和指纹采集方法。 指纹采集装置100具有拍摄传感器单元101， 聚焦光学系统112f; 光学系统驱动机构113; 控制部分102; 和图像处理部分103.拍摄传感器单元101形成被摄体图像。 聚焦光学系统112f将被摄体图像聚焦在拍摄传感器单元的受光面上。 光学系统驱动机构113至少沿着光轴移动聚焦光学系统112f。 控制部102使光学系统驱动机构和拍摄传感器单元交替地重复地执行聚焦光学系统的位移和图像拾取。 图像处理部分103分别计算构成拍摄图像的多个小区域的焦点度。 图像处理部分103从单个拾取图像中提取每个小区域中的部分图像。 图像处理部分103组合提取的部分图像以形成整个图像。 版权所有（C）2013，JPO＆INPIT
-
公开(公告)号：JP2001076520A
公开(公告)日：2001-03-23
申请号：JP24987899
申请日：1999-09-03
Applicant: SUMITA OPTICAL GLASS
Inventor： WATABE KOICHI , MARUYAMA FUMIO
IPC: H04N5/225 , F21S2/00 , F21V8/00 , F21W131/40 , F21Y101/02 , G02B6/00 , H04N1/04
Abstract: PROBLEM TO BE SOLVED: To provide an illumination unit capable of uniformly illuminating the whole illumination required area with small-aperture light guides. SOLUTION: In this illumination unit using a plurality of optical fiber light guides having a Gaussian radiation distribution, the outlet ends 5 of the light guides are regularly arranged on the same plane to form a luminescence plane. Desirous modes include a mode in which the outlet ends 5 of the adjacent light guides are arranged at equal intervals, a mode in which a diffusing plate serving as the luminescence plane is arranged at a position of a prescribed distance from the outlet ends 5 of the light guides, and a mode in which a unit inner wall from the outlet ends 5 of the light guides to the diffusing plate is used as a reflecting mirror.
-
Patent Agency Ranking
公开(公告)号：JP2012238107A
公开(公告)日：2012-12-06
申请号：JP2011105451
申请日：2011-05-10
Applicant: Sumita Optical Glass Inc , 株式会社住田光学ガラス
Inventor： WATABE HIROMI , MARUYAMA FUMIO , TAGAWA MASAFUMI
Abstract: PROBLEM TO BE SOLVED: To provide a fingerprint collecting device and a fingerprint collecting method which collect fingerprint images in a wide range with high accuracy.SOLUTION: A fingerprint collecting device has an imaging sensor unit 111; a reference optical system 112; first to third optical systems 113a-113c; an outline detecting portion; an extracting portion; and an image uniting portion. The imaging sensor unit 111 picks up an optical image formed on a light-receiving surface. The reference optical system 112 images a reference optical image of fingers in a reference area on the light-receiving surface. The first to third optical systems 113a-113c image first to third optical images in first to third areas. The outline detecting portion detects a plane surface outline. The extracting portion extracts a reference picked up image and a part image which is an image of a part of the first picked up image, on the basis of the plane surface outline. The image uniting portion unites the reference picked up image and the part image extracted from the first picked up image to form the whole image.
Abstract translation: 要解决的问题：提供以高精度收集宽范围的指纹图像的指纹采集装置和指纹采集方法。 解决方案：指纹采集装置具有成像传感器单元111; 参考光学系统112; 第一至第三光学系统113a-113c; 轮廓检测部分; 提取部分; 和图像组合部分。 成像传感器单元111拾取形成在光接收表面上的光学图像。 参考光学系统112在光接收表面上的参考区域中对手指的参考光学图像进行成像。 第一至第三光学系统113a-113c在第一至第三区域中成像第一至第三光学图像。 轮廓检测部检测平面轮廓。 提取部分基于平面表面轮廓提取参考拍摄图像和作为第一拾取图像的一部分的图像的部位图像。 图像合并部分将从第一拾取图像提取的参考拾取图像和部分图像相结合以形成整个图像。 版权所有（C）2013，JPO＆INPIT
-
公开(公告)号：JPH0771945A
公开(公告)日：1995-03-17
申请号：JP21167092
申请日：1992-08-07
Applicant: KAO CORP , SUMITA OPTICAL GLASS
Inventor： MINAMI KOJI , HOTTA HAJIME , MARUYAMA FUMIO
Abstract: PURPOSE:To precisely analyze the surface condition of an object as to gloss, etc., by applying light to the surface for analysis of an object with the varying angle of illumination of plural illuminating light paths, measuring the reflectivity of the light, and comparing the reflectivity with a reference reflectivity measured in advance. CONSTITUTION:To measure the surface reflectivity of the skin of a human body, a head 4 is made to abut on a predetermined portion to be measured, and inputs from an input portion 6, a control portion 7 and an output portion 8 are turned on to measure the surface reflectivity of the skin. Light is applied to the surface for analysis of an object from one of plural illuminating light paths 2a, 2b and a plurality of receiving light paths 3c-3d each receive the illuminating light reflected from the surface for analysis. While an angle of analysis, which is the sum of the angle at which the optical paths 3c-3e receive the light and the angle at which the optical paths 2a, 2b give off light, is varied by the selecting of the optical paths 2a, 2b in sequence, the reflectivity of the light on the surface for analysis is measured and compared with the premeasured reflectivity of light on a reference surface, so as to analyze the surface condition of the object.
-
公开(公告)号：JPH01173002A
公开(公告)日：1989-07-07
申请号：JP33378787
申请日：1987-12-28
Applicant: SUMITA OPTICAL GLASS
Inventor： TAGAWA MASAFUMI , SAWANOBORI SHIGETO , YAMAUCHI JUNYA , MARUYAMA FUMIO
Abstract: PURPOSE:To easily form a transmission type diffraction grating by placing alternately a transparent glass phase and an opaque crystal phase of a linear shape of a prescribed dimension in the inside of a photosensitive glass substrate. CONSTITUTION:A diffraction grating is manufactured by polishing the glass containing a photosensitive metal and in accordance with printing and developing processes of photosensitive glass, which are executed usually. That is, a mask pattern of prescribed line width and pitch interval consisting of a chrome vapor-deposited film is allowed to adhere closely to a photosensitive glass plate and ultraviolet rays are radiated by parallel rays using a high voltage mercury lamp. Thereafter, it is made parallel by polishing the deformation on the surface of glass, which has been generated by a heat treatment. As a result, a diffraction grating in which an opaque part 1 and a transparent part 2 which have been manufactured and crystallized in such a way are arrayed periodically is formed. Accordingly, the process which necessitates precision working scarcely exists, and said diffraction grating has an excellent productivity.
-
公开(公告)号：JPS62265740A
公开(公告)日：1987-11-18
申请号：JP10994686
申请日：1986-05-14
Applicant: NEC CORP , SUMITOMO METAL MINING CO , SUMITA OPTICAL GLASS
Inventor： HAYASHI KAZUHIRO , IDE TAKEO , MARUYAMA FUMIO
Abstract: PURPOSE:To detect displacing amounts of whole inner leads of a lead frame at a high speed by combining the X-Y moving unit, Z-direction displacement detector and X-Y direction displacement detector of the frame and processing the signals at a high speed. CONSTITUTION:A moving unit for controlling to move a lead frame 1 in X-Y directions, a light emitting unit 8 for emitting an optical beam 3 of very small diameter to the surface of the frame l and an optical system for focusing the reflected light on the inner lead of the frame 1 are provided. A Z-direction sensor 7 detects the Z-direction position of the inner lead by the variation in the focusing position of the focused spot light. An X-Y direction sensor 12 detects the X-Y direction position of the inner lead by the beam which passes between the inner leads of the frame. Further, a signal processor 11 calculates to compare the output signals from the sensors 12, 7 with a reference signal to calculate displacements in X-Z directions of the inner lead of the frame 1.
-
公开(公告)号：JPH01105206A
公开(公告)日：1989-04-21
申请号：JP26245387
申请日：1987-10-17
Applicant: SUMITA OPTICAL GLASS
Inventor： TAGAWA MASAFUMI , OKAWA EIJI , MARUYAMA FUMIO
Abstract: PURPOSE:To obtain a normal distribution illumination whose incident light quantity loss is small by providing an uneven part having surface roughness of a prescribed range on the incident end of an optical fiber or an optical fiber bundle. CONSTITUTION:A very small uneven part which has been formed by an abrasive corresponding to #800-#2000 prescribed by JIS R 6001, or that which is equal thereto is provided on the incident end face of a multi-mode optical fiber whose light receiving angle is large, or an optical fiber bundle which had bundled these optical fibers. Accordingly, a light beam from a light source 5, which is made incident on the incident end of the optical fiber or the optical fiber bundle 8 comes into collision with an uneven part of the end face and the incident angle is diversified. In such a way, a mode which is propagated in the optical fiber is equalized extending from '0'-order to the maximum higher mode, and the emitted light becomes illuminating light whose intensity distribution is similar to a normal distribution.
-
-
-
-
-
-
-
-
-
Search Results
13
records
(took 0.025 seconds)
