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1. 发明专利

JP2006113222A Optical element and optical system having optical element 有权
标题翻译：具有光学元件的光学元件和光学系统
公开(公告)号：JP2006113222A
公开(公告)日：2006-04-27
申请号：JP2004299491
申请日：2004-10-14
申请人： Pentax Corp , ペンタックス株式会社
发明人： NOGUCHI MASATO
IPC分类号： G02B5/00 , G02F1/1335
摘要： PROBLEM TO BE SOLVED: To provide an optical element which can be manufactured more easily than a conventional optical element while securing light utilization efficiency as high as the existing conventional optical element when a light utilizing element such as a liquid crystal display element or the like is used, and also to provide an optical system using the optical element. SOLUTION: The optical element is arranged in front of the light utilizing element on an optical path of light beams. The optical element is made of a flat plane substrate of a transmissive material and a plurality of first flat surface regions, which are divided by a first level difference so as to have a prescribed pattern, are arranged on one of the flat surfaces of the flat substrate. Let Δ1 be the size of the first level difference, λ be the wavelength of the incident light beams and n be the refractive index of the material. Then, the optical element satisfies (n-1)Δ1=λ/2 ---(1). COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种光学元件，其可以比现有的光学元件更容易制造，同时确保如现有的常规光学元件那样高的光利用效率，当诸如液晶显示元件的光利用元件或使用该光学元件，并且还提供使用该光学元件的光学系统。解决方案：光学元件布置在光利用元件的前面，在光束的光路上。光学元件由透明材料的平面基板和多个第一平面区域构成，第一平面表面区域被划分成具有规定图案的第一高度差，布置在平面的一个平坦表面上基质。设Δ1为第一电平差的大小，λ为入射光束的波长，n为材料的折射率。然后，光学元件满足（n-1）Δ1=λ/ 2 ---（1）。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2005189094A Scanning optical device inspection apparatus 审中-公开
标题翻译：扫描光学装置检测装置
公开(公告)号：JP2005189094A
公开(公告)日：2005-07-14
申请号：JP2003430589
申请日：2003-12-25
申请人： Pentax Corp , ペンタックス株式会社
发明人： IIZUKA TAKAYUKI , NOGUCHI MASATO
IPC分类号： G01M11/00 , G02B26/10
摘要： PROBLEM TO BE SOLVED: To provide a scanning optical device inspection apparatus which extends an inspection area in a scanning optical device to be inspected without decreasing detection accuracy for an optical defect.
SOLUTION: A laser beam emitted from a light source device 10 as a collimated light beam forms a line image on a diffraction branch element 20 through a cylindrical lens 11 and branches into three light beams to form a line image again on a reflection surface 13b of a polygon mirror 13 through a relay lens 12. The three light beams are reflected by the polygon mirror 13 and pass through the scanning optical device to be inspected at different heights in a sub scanning direction to form spots on a surface to be scanned spaced apart in a main scanning direction. While rotating the polygon mirror 13, a sensor section 15a of an inspection apparatus 15 is moved in the main scanning direction to detect a peak amount of light of each light beam for each position in the main scanning direction. It is then determined that there is an optical defect in a position where the peak amount of light extremely decreases.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：解决的问题：提供一种在不会降低光学缺陷的检测精度的情况下延长要检查的扫描光学装置中的检查区域的扫描光学装置检查装置。解决方案：作为准直光束从光源装置10发射的激光束通过柱面透镜11在衍射分支元件20上形成线图像，并分支成三个光束，以在反射上再次形成线图像多角镜13的表面13b通过中继透镜12。三个光束被多面反射镜13反射并通过扫描光学装置，以在副扫描方向上不同的高度检查，以在表面上形成点在主扫描方向扫描间隔开。在旋转多面镜13的同时，检查装置15的传感器部15a沿主扫描方向移动，以检测主扫描方向上的每个位置的每个光束的峰值量。然后确定在峰值光量极度降低的位置处存在光学缺陷。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2004280005A Optical low-pass filter 有权
公开(公告)号：JP2004280005A
公开(公告)日：2004-10-07
申请号：JP2003074983
申请日：2003-03-19
申请人： Pentax Corp , ペンタックス株式会社
发明人： NOGUCHI MASATO
IPC分类号： G02B5/20 , G02B5/30 , G02B27/46 , G03B11/00
CPC分类号： G02B5/20 , G02B5/3083
摘要： PROBLEM TO BE SOLVED: To provide an LPF consisting of three optical members and excellent in both of cutoff performance and directivity.
SOLUTION: The optical low-pass filter used for a solid-state imaging element where pixels are two-dimensionally regularly arrayed is constituted of 1st to 3rd double refraction plates. Assuming that an angle formed by the respective separating directions of incident light beams on the adjacent double refraction plates is θs, the angle θs satisfies a conditional expression (1): 46°≤θs≤60°.
COPYRIGHT: (C)2005,JPO&NCIPI

4. 发明专利

JP2004125703A Visual inspection device for transmission phase object 审中-公开
公开(公告)号：JP2004125703A
公开(公告)日：2004-04-22
申请号：JP2002292679
申请日：2002-10-04
申请人： Pentax Corp , ペンタックス株式会社
发明人： SONODA TSUNEHIKO , NOGUCHI MASATO , SUGIURA MASAYUKI
IPC分类号： G01N21/84 , G01N21/958
摘要： PROBLEM TO BE SOLVED: To provide a visual inspection device for a transmission phase object capable of identifying an appearance defect having a small size and little scattering.
SOLUTION: The visual inspection device has a light source emitting light to a transmission phase object, a photographing means photographing the object, an image processor checking the appearance defect of the object based on an image photographed by the photographing means, and a light source holding mechanism adjusting the position of the light source relative to the object. The light source holding mechanism causes the light source such that the light passing parts other than the appearance defect of the object enters the appearance defect instead of the photographing means and scattered light from the appearance defect enters the photographing means.
COPYRIGHT: (C)2004,JPO

5. 发明专利

JP2004126384A Optical low-pass filter and imaging optical system 审中-公开
标题翻译：光学低通滤光片和成像光学系统
公开(公告)号：JP2004126384A
公开(公告)日：2004-04-22
申请号：JP2002292893
申请日：2002-10-04
申请人： Pentax Corp , ペンタックス株式会社
发明人： NOGUCHI MASATO
IPC分类号： G02B27/46 , G02B27/12 , H04N5/225
CPC分类号： G02B27/1013 , G02B27/126
摘要： PROBLEM TO BE SOLVED: To provide an optical low-pass filter which comprises two optical members and has optical performance nearly as high as that of an optical low-pass filter composed of three optical members and an imaging optical system equipped with the optical low-pass filter.
SOLUTION: The optical low-pass filter is used for a solid-state imaging element having pixels arrayed regularly at least in a horizontal direction and comprises a 1st birefringent plate and a 2nd birefringent plate, a condition of 45°
摘要翻译：解决的问题：提供一种光学低通滤波器，其包括两个光学构件，并且具有几乎与由三个光学构件组成的光学低通滤波器和具有该光学构件的成像光学系统的光学性能几乎相同的光学性能光学低通滤波器。解决方案：光学低通滤波器用于具有至少沿水平方向规则排列的像素的固态成像元件，并且包括第一双折射板和第二双折射板，条件为45°<θs< 90°，其中θs是入射在第一双折射板上的光束的分离方向和入射在第二双折射板上的光束的分离方向的角度。版权所有（C）2004，JPO

6. 发明专利

DE10345970A1 Optical low pass filter for use in a digital camera has a low pass filter that uses a pair of double refractive optical plates 未知
$Optical low pass filter for use in a digital camera has a low pass filter that uses a pair of double refractive optical plates$
公开(公告)号：DE10345970A1
公开(公告)日：2004-04-15
申请号：DE10345970
申请日：2003-10-02
申请人： PENTAX CORP
发明人： NOGUCHI MASATO
IPC分类号： G02B27/46 , G02B27/12 , H04N5/225 , G02B27/28 , H04N1/00
摘要： The image optical system (100) has an optical low pass filter (10) that has a pair of double refractive plates that provides two separate beam outputs. Both plates (1,2) are so arranged that the separation angle lies between 45 degrees.

7. 发明专利

DE4235832B4 未知
公开(公告)号：DE4235832B4
公开(公告)日：2006-04-20
申请号：DE4235832
申请日：1992-10-23
申请人： PENTAX CORP
发明人： IKI MAKOTO , MATSUO HIROFUMI , OONO MASAHIRO , NOGUCHI MASATO
IPC分类号： G01B11/26 , G01B9/02 , G01J9/02

8. 发明专利

DE19609083B4 未知
公开(公告)号：DE19609083B4
公开(公告)日：2004-02-26
申请号：DE19609083
申请日：1996-03-08
申请人： PENTAX CORP
发明人： NOGUCHI MASATO
IPC分类号： G02B5/04 , G02B5/30 , G02B27/28 , G02F1/1335 , G02F1/13357 , G02B27/14
摘要： A polarizer having first and second reflecting surfaces which define an angle of 120 DEG therebetween and a beam splitting surface which lies in a bisectional plane of the first and second reflecting surfaces. The first and second reflecting surfaces and the polarization beam splitting surface are arranged to meet at a line which defines an edge of the polarizer.

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