摘要:
A light source apparatus is equipped with a discharge lamp, which has a glass tube that forms a light emitting part and a base member that is coupled thereto, and a mounting apparatus that holds the discharge lamp via the base member. Therein, the base member has a flange part that contacts positioning plate of the mounting apparatus, and a fixed part that is urged with a pressing force that presses the flange part to the positioning plate. Furthermore, the mounting apparatus has a fixing arm that urges the fixed part by a compression coil spring.
摘要:
A light source apparatus is equipped with a discharge lamp, which has a glass tube that forms a light emitting part and a base member that is coupled thereto, and a mounting apparatus that holds the discharge lamp via the base member. Therein, the base member has a flange part that contacts positioning plate of the mounting apparatus, and a fixed part that is urged with a pressing force that presses the flange part to the positioning plate. Furthermore, the mounting apparatus has a fixing arm that urges the fixed part by a compression coil spring.
摘要:
An optical apparatus having a suppressor that suppresses the wavelength dependence, in a predetermined wavelength band, of a thin film formed on an optical surface of the optical apparatus.
摘要:
Apparatus and methods are disclosed that measure the thickness of a layer on a workpiece such as a semiconductor wafer, especially as the layer is undergoing a process such as polishing to achieve planarization of the layer. The apparatus comprises a probe light optical system that directs a beam of probe light to be incident on a surface of the layer, and produce a signal light from reflection of the probe light from or transmission of the probe light through the layer. A light detector retrieves and detects sufficient wavelengths of the signal light to produce a corresponding electronic signal encoding data regarding the intensity at various wavelengths of the signal light. At least one of the following is monitored: appearance or disappearance of maxima or minima in a spectrum of intensity or transmittance of the signal light, a change in wavelength at which a maximum or minimum is located in the spectrum, and change in intensity at a particular wavelength at which a maximum or minimum is located in the spectrum. The apparatus can be included with a polishing apparatus.
摘要:
An imaging device is provided for efficient and accurate conversion of invisible infrared radiation into a visible optical image. In an example, the image device employs an improved configuration of a substrate transmissive to infrared radiation, an infrared lens system, an optical readout radiation/displacement conversion unit for converting the infrared radiation into displacements, a readout optical system for directing readout light towards reflectors of the optical readout radiation/displacement conversion unit. The image device also provides for ease in assembly and calibration by adopting an improved arrangement of the parts.
摘要:
A light source apparatus is equipped with a discharge lamp, which has a glass tube that forms a light emitting part and a base member that is coupled thereto, and a mounting apparatus that holds the discharge lamp via the base member. Therein, the base member has a flange part that contacts positioning plate of the mounting apparatus, and a fixed part that is urged with a pressing force that presses the flange part to the positioning plate. Furthermore, the mounting apparatus has a fixing arm that urges the fixed part by a compression coil spring.
摘要:
A light source apparatus is equipped with a discharge lamp, which has a glass tube that forms a light emitting part and a base member that is coupled thereto, and a mounting apparatus that holds the discharge lamp via the base member. Therein, the base member has a flange part that contacts positioning plate of the mounting apparatus, and a fixed part that is urged with a pressing force that presses the flange part to the positioning plate. Furthermore, the mounting apparatus has a fixing arm that urges the fixed part by a compression coil spring.
摘要:
Reflective spatial light modulators (RSLMs) and projection apparatus employing such RSLMs are disclosed. The RSLM comprises a reflective surface and a superposed light-modulation layer. The reflective surface is configured to have a reflective diffraction optical element or a microfaceted reflective array. Incident light impinging on the RSLM can pass through the light-modulation layer, reflect from the reflective surface, and return through the light-modulation layer to become modulated signal light capable of forming a viewable image if projected onto a screen or other surface. The reflective diffraction optical element or microfaceted reflective array on the reflective surface is operable to cause the signal light to propagate from the RSLM in a different direction than any ghost light reflected from the RSLM. Projection apparatus employing such an RSLM comprise an illumination optical system, a projection optical system that may or may not be coaxial with the illumination optical system, and a stop operable to pass signal light but not ghost light to a screen for viewing. The viewed image has enhanced contrast over the prior art.
摘要:
A light detecting apparatus which can be arranged even in an optical path of which converting angle is relatively large, and can accurately detect light entering along a predetermined direction in an optical path. The light detecting apparatus (10) for detecting light which enters in a predetermined direction in an optical path has a light splitting element (11) having two optical surfaces (11a, 11b) positioned in the optical path, and a photoelectric detector (12) for photo detecting light which propagates inside the light splitting element and which is guided from a side face (11c) of the light splitting element. The light splitting element further has an incident angle conversion section (13) for converting a part of light which enters one optical face of the light splitting element into light entering the other optical surface at an incident angle greater than or equal to a total reflection angle.
摘要:
In the polishing apparatus and film inspection method, a polishing apparatus for polishing an object causes a relative movement between a polishing body and the polishing object. A polishing agent is then interposed between the polishing body and the polishing object. The polishing apparatus includes an optical measuring system capable of measuring at least one of a polished surface state of the polishing object or a film thickness of the polishing object and a position detection system capable of detecting relative positions of the optical measuring system and the polishing object. A control system is also included, and is capable of controlling at least one of the optical measuring system or the polishing object in accordance with position detection system signals so that prescribed endpoint detection regions of the polishing object are measured by the optical measuring system. A film thickness inspection method optically detects the film thickness of the outermost layer on a semiconductor substrate on which desired wiring patterns are formed in predetermined chip regions by laminating a plurality of layers. The film thickness inspection method includes selecting regions other than the chip regions on the semiconductor substrate, and the film thickness is optically detected by illuminating these regions with light.