Abstract: A display device includes a display panel, an adhesive member, a transparent member, a shielding member, a phase retardation layer, and a linear polarization layer. The adhesive member may be on the display panel. The transparent member may be positioned on the adhesive member. The shielding member may be located beneath a lower surface of the transparent member in a peripheral region. The phase retardation layer may be located between the display panel and the adhesive member. The linearly polarizing layer may be located between the adhesive member and the transparent member. The linearly polarizing layer may be partially overlapped with the shielding member.

Abstract: A display panel and a manufacturing method thereof, a mask and a manufacturing method thereof, and a display device. The display panel includes a first display substrate and a second display substrate arranged to be opposed to each other, and main spacers and assistant spacers arranged between the first display substrate and the second display substrate. The main spacers and the assistant spacers are both arranged on the first display substrate. The main spacers have a height equal to a distance from the first display substrate to the second display substrate to support the first display substrate and the second display substrate. The assistant spacers have a height smaller than that of the main spacers. An end surface of a suspending end of at least one of the assistant spacers is planar and/or an end surface of a suspending end of at least one of the assistant spacers is convex.

Abstract: An array substrate(6), a liquid crystal display panel and a liquid crystal display, and the array substrate(6), corresponding to a plurality of pixel regions, each of which comprises a second electrode(2) and a third electrode(3) on a side close to a liquid crystal layer(30), the second electrode(2) comprising at least one second electrode strip, the third electrode(3) comprising at least one third electrode strip; each of the pixel regions of the array substrate(6) further comprising a fourth electrode(4) on the side close to the liquid crystal layer(30), the fourth electrode(4) comprising at least one fourth electrode strip located between the second electrode strip and the third electrode strip that are adjacent; and an electric potential of the fourth electrode(4) falling between an electric potential of the second electrode(2) and an electric potential of the third electrode(3).

Abstract: The present invention discloses an LCD device, which includes a display panel, a connecting part, a back cover, and a locking part. The connecting part is fixed on one side of the display panel. The back cover is disposed on the side of the display panel having the connecting part and has a through hole corresponding to the connecting part. The locking part includes a base and an extending portion extending from the base. The base abuts against the back cover, and the extending portion penetrating the through hole and locked in the connecting part, so that the display panel is fixed on the back cover to achieve the LCD device without a bezel.

Abstract: A liquid crystal display apparatus is provided with: an LED; a liquid crystal panel; a light guide plate having a light input surface; a chassis having a second bottom plate section; a frame; an LED substrate; a heat dissipating member, which is disposed such that the heat dissipating member can slide in the direction orthogonal to the light input surface, the heat dissipating member holding the LED substrate on one plate surface, and having a plate-like attaching section disposed on the second bottom plate section; a side plate section, which is disposed on the side opposite to the light input surface with the attaching section therebetween, the side plate section extending in a board-shape from the frame, and having a through hole; and an adjusting screw, which has a shaft shape, and which penetrates the side plate section through the through hole such that one end of the adjusting screw faces the attaching section, the adjusting screw being capable of bringing the one end closer to the light input surface

Abstract: A display device includes a display panel, a backlight unit that provides a light to the display panel, a bottom cover that accommodates a portion of the backlight unit, and a chassis frame coupled to the bottom cover and supporting the display panel.

Abstract: Disclosed is a light switching module comprising a polarizing element for transforming incident light to polarized light; a liquid crystal cell disposed on the polarizing element; and a scattering element with a substrate and a birefringence layer disposed on the liquid crystal cell; wherein the light switching module appears transparent state or scattering state after the incident light transmitting the light switching module.

Abstract: Provided is a liquid crystal display device in which the scattering of a light control film becomes uniform on a pixel by pixel basis. A liquid crystal display device 1 includes: a light source 2; a liquid crystal panel 4 that modulates light emitted from the light source 2; and a light control film 7 that uses a total reflection and is disposed closer to a viewer side than to the liquid crystal panel 4. The light control film 7 includes a base substrate 39 having light transmission property, and a light-shielding layer 40 and a light diffusing portion 41 formed on one surface side of the base substrate 39. Patterns of the light-shielding layer 40 are anisotropic. A longitudinal direction of the patterns and a longitudinal direction of one region in which a property of the liquid crystal panel 4 is approximately equal intersect each other.

Abstract: A filter sheet, a manufacturing method thereof and a display device are disclosed. The filter sheet includes: a first medium film, a second medium film and a third medium film attached to each other; wherein the filter sheet comprises a first pixel region, a second pixel region and a third pixel region; a portion of the first medium film in the first pixel region of the filter sheet is removed, a portion of the second medium film in the second pixel region of the filter sheet is removed, and a portion of the third medium film in the third pixel region of the filter sheet is removed; the first medium film reflects light in a first wavelength range and transmits light outside the first wavelength range; the second medium film reflects light in a second wavelength range and transmits light outside the second wavelength range; and the third medium film reflects light in a third wavelength range and transmits light outside the third wavelength range.

Abstract: A display device includes a lens with an adjustable refractive index. The display device includes a display panel including a plurality of pixels, a backlight unit positioned at a back side of the display panel to emit light of a first color and light of a second color to the display panel at different times, the first color and the second color being different from each other; and a lens unit positioned at a front side of the display panel to form at least one lens in a 3D mode. The lens unit includes a plurality of electrodes for adjusting a refractive index of the lens, and a signal applied to the electrodes when the backlight unit emits the light of the first color is different from a signal applied to the electrodes when the backlight unit emits the light of the second color.

Abstract: A liquid crystal lens includes a first substrate, a second substrate which faces the first substrate, a liquid crystal layer which is interposed between the first substrate and the second substrate and a lens polarizer which is disposed on the outside of the second substrate. The lens polarizer includes a first polarization region having a first polarization direction and a second polarization region having a second polarization direction which is different from the first polarization direction.

Abstract: There is provided a circular polarizing plate for a reflective liquid crystal display, the circular polarizing plate including: a polarizing plate including a polarizer having an absorption axis forming an angle of 85° to 95° with respect to an alignment direction of liquid crystals of a liquid crystal cell, disposed toward an upper substrate, and a ¼ wavelength plate having an optical axis forming an angle of 130° to 140° with respect to the alignment direction of the liquid crystals of the liquid crystal cell, disposed toward the upper substrate, wherein the ¼ wavelength plate has reverse wavelength dispersion characteristics.

Abstract: A transflective display pixel includes a sub-pixel with a light-recycling modulation layer, a luminescent layer, and a selective reflector layer and a backlight source to provide backlight to the sub-pixel. The light-recycling modulation layer is to reflect light from the luminescent layer having a first polarization state, and the selective reflector layer is to reflect light from the luminescent layer in a first waveband. The selective reflector layer is to transmit the backlight to the luminescent layer, and the luminescent layer converts light from the light-recycling modulation layer and the backlight into the first waveband.

Abstract: The inventive concept relates to a light unit and a diffuser separated from the light source at a predetermined distance and having a cylindrical structure, and a cylindrical structure display device including the same.

Abstract: A backlight unit includes a light source portion configured to provide light to a display panel, a reflection sheet arranged on a lower part of the light source portion, a mold frame accommodating the light source portion, and a support frame which supports the mold frame and includes a bottom portion, first and second side wall portions which extend upward from both end sides of the bottom portion and face each other, a ceiling portion which extends in a horizontal direction from an upper end of the first side wall portion, and a slant portion slanted downward from an end part of the ceiling portion and having one end that comes in contact with the end part of the ceiling portion and the other end that comes in contact with an upper end of the second side wall portion.

Abstract: A liquid crystal display panel, a display device and a manufacturing method of a liquid crystal display panel. The liquid crystal display panel comprises: a color filter (2) located on an array substrate (1), and the color filter (2) comprises a black matrix (21) and a color filter layer (22) having different color sections, wherein the different color sections of the color filter layer (22) have quantum dots (QDs) of different sizes respectively, and the QDs of different sizes can be excited to generate light of corresponding colors; a protective layer (3) located on the color filter; a liquid crystal layer (4) provided on the protective layer (3); a transparent protective plate (5) provided on the liquid crystal layer (4).

Abstract: A light source module includes a printed circuit board including a wiring layer, an insulating coating layer disposed on the wiring layer, and a reflection adjustment pattern disposed on the insulating coating layer and having reflection characteristics which are different from reflection characteristics of the insulating coating layer, a light emitting chip mounted on the printed circuit board, and an optical lens arranged on an upper portion of the light emitting chip and fixed to the printed circuit board.

Abstract: A backlight assembly for a display having a polarized transmission axis is provided including a light source for emitting light; a first brightness enhancement film having a plurality of prismatic elements extending in a first direction, and positioned to receive light emitted from the light source; and a second brightness enhancement film having a plurality of prismatic elements extending in a second direction and positioned to receive light exiting the first brightness enhancement film, wherein the first direction extends at an angle of between about 5 degrees and about 15 degrees offset from the polarized transmission axis of the display and the second direction is substantially perpendicular to the first direction.

Abstract: A liquid crystal device is disclosed. The liquid crystal device includes a TFT array substrate, a CF substrate, and a liquid crystal layer. The TFT array substrate includes a first electrode layer and a first alignment layer covering the first electrode layer. A color CF layer is formed between a glass substrate and a passivation layer of the TFT array substrate. The TFT array substrate further includes a black matrix and a photo spacer arranged thereon. The CF substrate includes a second electrode layer and a second alignment layer covering the second electrode layer. The liquid crystal layer is arranged between the first alignment layer and the second alignment layer. In addition, a manufacturing method of the liquid crystal device is disclosed. In this way, the liquid crystal devices have good alignment effects, and the color shift issues at wide viewing angle and the aperture rate are enhanced.

Abstract: A liquid crystal display device has a liquid crystal display panel including pixels each having an active device, a pixel electrode, a common electrode and a liquid crystal layer arranged in a dot matrix array. The liquid crystal display panel has a first substrate, a second substrate, and a liquid crystal layer provided between the first substrate and the second substrate. The first substrate has the active device, the pixel electrode, the common electrode and a first alignment film. The second substrate has a second alignment film. The first alignment film and the second alignment film are respectively a photo alignment film formed by irradiating a photo decomposition type insulating film with light. The second alignment film has a thickness of at least 10 nm and no greater 50 nm and is thinner than the first alignment film.

Abstract: A Fresnel liquid crystal lens and a 2D/3D switchable display panel are provided. The Fresnel liquid crystal lens includes a plurality of liquid crystal lens units. Each liquid crystal lens unit includes a first main electrode and two first sub electrodes disposed on a first substrate, a second main electrode and two second sub electrodes disposed on a second substrate, and a liquid crystal layer disposed between the first and second substrates. The first sub electrodes are disposed on two opposite sides of the first main electrode, and a first gap is formed between the first main electrode and the first sub electrode. The second sub electrodes are disposed on two opposite sides of the second main electrode, and a second gap is formed between the second main electrode and the second sub electrode.

Abstract: A liquid crystal display device equipped with in-cell touch panel functionality is configured to increase location determining performance by reducing a parasitic capacitance formed between drive electrodes and a counter electrode. A liquid crystal display device 1 equipped with touch panel functionality is configured such that (i) an active matrix substrate 4 includes pixel electrodes 43, (ii) a counter substrate 5 includes a counter electrode 16, drive electrodes 13, and detection electrodes 12, and (iii) the counter electrode 16 is provided with slits 16s for alignment control.

Abstract: A display may have a thin-film transistor layer and a color filter layer. The display may include light blocking structures formed on a transparent substrate. In one arrangement, a clear planarization layer may be formed over the light blocking structures. The thin-film transistor layer may be formed over the planarization layer. The color filter layer may be integrated with the thin-film transistor layer. At least light blocking structures and the planarization layer should be formed from high temperature resistance material. In another arrangement, the color filter layer may be formed on the light blocking structures. A clear planarization layer may then be formed over the color filter layer. The thin-film transistor layer may be formed on the planarization layer. In this arrangement, the color filter layer also needs to be formed from thermal resistance material.

Abstract: A liquid crystal display device includes a TFT array substrate (first substrate), a counter substrate (second substrate), a liquid crystal layer, and a common electrode (first electrode), an insulating film, and pixel electrodes 21 (second electrode) that are provided on the TFT array substrate. Each of the pixel electrodes 21 has a plurality of linear electrodes 26 and a first connection portion 27. Each of the linear electrodes 26 has a main line portion 29 and a first bent portion 30. An additional capacitance portion 32 is provided integrally with the first connection portion 27 in a region along an arrangement direction of a plurality of first bent portions 30.

Abstract: An electro-chromic device including a solid or quasi-solid electrolyte layer is disclosed. The electrolyte layer may be a composite polymeric electrolyte layer. The polymeric electrolyte layer may be a conductive transparent adhesive or an optically transparent cured electrolyte. The electrolyte layer may also be a porous optically transparent membrane impregnated or embedded with an electrolytic material. Methods for forming solid or quasi-solid electrolyte layers in-situ in electro-chromic devices are also provided.

Abstract: The embodiments herein relate to electrochromic window systems and components thereof. In particular, the disclosed embodiments relate to systems where electrochromic devices are powered and/or controlled using photonic energy. In an exemplary embodiment, a laser is driven by a driver to deliver photonic power and/or control information into an optical fiber. The optical fiber carries the power and control information to a photovoltaic converter and a controller. The photovoltaic converter and controller may be included within an insulated glass unit in some embodiments. The photovoltaic converter converts the light energy into electrical energy used to power a transition in an optical state of an electrochromic layer or layers within the insulated glass unit. The controller may be used to control the power delivered to the electrochromic layer(s), such that a smooth transition occurs.

Abstract: The present invention provides fine electret particles comprising, at least in the surface portion of the particles, an electret resin and a polymeric dispersant, the electret resin being a fluorine-containing resin and being electretized by electron ray irradiation, radial ray irradiation, or corona discharge treatment. The fine electret particles are uniformly electrified, and well dispersed in an electrophoretic medium, while exhibiting excellent electrophoretic properties.

Abstract: This invention relates to electrophoretic fluids, the use of these fluids for the preparation of an electrophoretic display device, and electrophoretic displays comprising such fluids.

Abstract: The present invention provides an electrophoretic display device provided with a first electrode, a second electrode, and a third electrode disposed oppositely to the first electrode as electrodes for controlling the migration of white charged particles and black charged particles. The present display device can achieve satisfactory color display with high color purity and brightness without reduced reflectance when displaying white.

Abstract: A microscopic image detecting instrument includes a microscope, a photographing device, a driver, a mark having a predetermined distance from an object, and a controller coupled to the photographing device and the driver. The microscope includes an object stage for holding the object and an objective lens for focusing on and magnifying the object. The photographing device is set above the objective lens to photograph an image presented by the objective lens. The controller controls the driver to move at least one of the object stage and the objective lens to an actual focusing position, according to an actual focal length to the object. The actual focal length to the object is calculated by the controller according to a comparison between an optical definition of a mark image taken as a preliminary target of focus against a predetermined definition calibration curve and the distance between the mark and the object.

Abstract: The device includes a spatial light modulation section having a phase modulation plane to which laser light L1 in a wavelength region longer than an ultraviolet region is input, and on which a phase of the laser light L1 is modulated at each of a plurality of two-dimensionally arrayed regions, to generate modulated laser light L2, a wavelength conversion section having a light incident plane which receives the modulated laser light L2 output from the spatial light modulation section, and converting a wavelength of the modulated laser light L2 into a wavelength in the ultraviolet region, and an image transfer optical system coupling the phase modulation plane of the spatial light modulation section and the light incident plane of the wavelength conversion section, so as to be optically conjugate systems to each other.

Abstract: One embodiment provides a motorized monopole for a camera, including: a monopole; an offset arrangement attached to the monopole; a camera mount; the offset arrangement rotating with respect to the monopole; the offset arrangement terminating in a connection attaching the camera mount; and a first motor imparting tilt movement to the camera mount with respect to the connection. Other aspects are described and claimed.

Abstract: In contrast to the traditional transitions used in systems that switch over a camera with a handheld top mount to a low mode mount, a quick swap top mountable camera mount system includes a quick swap handheld top mount, a quick swap mounting plate, and a quick swap low mode mount. Unlike traditional methods and components, fewer pieces are required to be removed and replaced due, in part, to the use of quick swap coupling elements, which allow various types of mounts to quickly and easily decouple from the quick swap mounting plate.

Abstract: A projection type image display apparatus includes an adjusting sub-frame image generator and a shift amount adjuster. The adjusting sub-frame image generator generates a primary adjusting sub-frame image having a design in which a first line having a first color and a width of an N pixel (N being a natural number) is displayed on a background image having a second color, and a secondary adjusting sub-frame image having a design in which a second line having a third color and a width of an M pixel set to N=M+? (M being an integer equal to or greater than 1, ? being an integer equal to or greater than 0) is displayed on a background image having a fourth color. The shift amount adjuster adjusts the shift amount when the display positions of the primary and secondary adjusting sub-frame images on the projection surface are shifted relatively to each other.

Abstract: Provided is an illuminating optical device that can reduce lowering of luminance in a display mode for enhancing color reproducibility. A multiple number of light source units (11, 19, 20) each emit a different color of light. Color wheel (28) includes multiple transmissive regions that each transmit a different color of light and that moves the point on which the incident light from each light source unit falls, over the transmissive regions as the wheel rotates. A storage (50) stores a multiple number of lighting pattern information items each item providing a lighting pattern to turn on each light source unit in a different period of lighting. A controller (60) receives a select signal for selecting one of the multiple lighting patterns to turn on each light source unit in accordance with the lighting pattern information that provides the lighting pattern selected by the select signal.

Abstract: An illumination optical system is provided with: a lens that condenses first luminous flux emitted from an optical fiber at an angle of divergence of ?1; a lens that condenses second luminous flux that has a color that is different from the color of the first luminous flux and that is emitted from an optical fiber at an angle of divergence of ?2 (??1); and a dichroic mirror that is provided at the position at which the optical axis of the lens intersects at a right angle with the optical axis of the lens, that transmits the first luminous flux that is irradiated from the lens, and that reflects the second luminous flux that was irradiated from the lens in the direction in which the first luminous flux was transmitted.

Abstract: A laser illuminated projector system is configured with multiple Red, Green and Blue laser sources. The Green laser source has an all fiber master oscillator power amplifier configuration in which pump light is coupled into the output end of the fiber amplifier in a counter-propagation direction rendering the structure of the Green source and therefore projector system compact. The Green laser source is operative to emit signal light pulses at about 1064 nm wavelength with a pulse repetition reaching of up to about 3000 kHz, pulse duration between about a 100 fm to about 100 psec, an average power between 1.5 W to above 30 W, a peak power above 5 MW, a pulse energy exceeding 100 ?J and a beam quality parameter M2 ranging between 1.2 and 1.5. The thus configured Green laser source substantially reduces speckle otherwise visible on the laser illuminated screen.

Abstract: On a photomask used for exposure processing, a plurality of pattern regions on which predetermined patterns are formed using a light shielding material are provided, and calibration marks are formed at positions corresponding to at least two opposite sides of each pattern region. During exposure processing, a deformation state of the photomask is detected based on calibration marks formed on the photomask and marks formed on a substrate stage, and a projection condition for projecting a pattern formed on the photomask on the substrate is corrected based on the detection result.

Abstract: The present disclosure provides a method of repairing a mask. The method includes inspecting the mask using a mask inspection tool to identify a defect on a circuit pattern of the mask; repairing the defect using a mask repair tool to form a repaired pattern; forming a first group of diffraction images of the repaired pattern and a second group of diffraction images of a reference feature; and validating the mask by comparing the first group of diffraction images with the second group of diffraction images.

Abstract: An apparatus for passive alignment of optical devices comprises a substrate including a trench in a top surface thereof, where the trench has a first end positioned at an edge of the substrate and a second end positioned at an interior region of the substrate, and a lens disposed on the top surface of the substrate adjacent to the second end of the trench. The apparatus further includes a top holder having a longitudinal indentation in a bottom surface thereof for mounting an optical fiber. The longitudinal indentation is sized to fit a top portion of the optical fiber such that a bottom portion of the optical fiber extends below the bottom surface of the top holder when the optical fiber is mounted therein. One or both of the substrate and the top holder include one or more spacer features configured for three-dimensional (3D) alignment of the lens with the optical fiber when the top holder is brought into contact with the substrate.

Abstract: This disclosure relates to a polyimide polymer that includes the reaction product of: (a) at least one diamine selected from the group consisting of a diamine of Structure (Ia) and a diamine of Structure (Ib), (b) at least one diamine of Structure (II), (c) at least one tetracarboxylic acid dianhydride, and (d) at least one compound containing a first functional group reactive with an amine or an anhydride and at least a second functional group selected from the group consisting of a substituted or unsubstituted linear alkenyl group and a substituted or unsubstituted linear alkynyl group. Each variable in the above formulas is defined in the specification.

Abstract: Disclosed is a positive-type photosensitive resin composition including (a) an alkali-soluble polyimide, (b) a compound having two or more epoxy groups in a molecule, and (c) a photo acid generator, wherein the content of the compound having two or more epoxy groups in a molecule (b) is within a range of 5 to 50 parts by weight based on 100 parts by weight of the alkali-soluble polyimide (a). The present invention provides a positive-type photosensitive resin composition capable of obtaining a high-resolution cured film which exhibits low warpage and also does not cause pattern embedment by reflow during a heating treatment at a low temperature of 200° C. or lower.

Abstract: To provide a negative photosensitive resin composition which is capable of imparting good ink repellency to a cured film, particularly to the upper surface of partition walls, and which has characteristics such that an ink repellent agent is less likely to remain in opening sections defined by the partition walls even without UV/O3 irradiation treatment, and the ink is permitted to uniformly wet-spread without unevenness. A negative photosensitive resin composition characterized by comprising (A) an alkali-soluble resin or alkali-soluble monomer, which has a photo-curability, (B) a photopolymerization initiator, (C) an ink repellent agent having fluorine atoms, and (D) a compound which is a partially hydrolyzed condensate of a hydrolysable silane compound mixture containing a hydrolysable silane compound having a mercapto group and a hydrolysable group and/or a hydrolysable silane compound having a group with an ethylenic double bond and a hydrolysable group, and which has no fluorine atom.

Abstract: A photosensitive transfer material including a support, a thermoplastic resin layer, and a photosensitive resin composition layer in this order, in which the photosensitive resin composition layer includes a polymer component (A) including a polymer having a constituent unit (a1) that includes a group in which an acid group is protected by an acid-decomposable group and a photoacid generator (B).

Abstract: In one embodiment, a coating and developing apparatus includes a processing block having two early-stage coating unit blocks, two later-stage coating unit blocks and two developing unit blocks, each unit blocks being vertically stacked on each other, The apparatus has at least two operation modes M1 and M2 adapted for abnormality. In mode M1 the processing module that processed the abnormal substrate in the developing unit blocks is identified, and subsequent substrates are transported to the processing module or modules, of the same type as the identified processing module, other than the identified processing module. In mode M2, the developing unit block that processed the abnormal substrate is identified, and subsequent substrates are transported to the developing unit block other than the identified developing unit block.

Abstract: The invention pertains to a method and apparatus for preparing a printing form from a precursor, particularly a method and apparatus for preparing the printing form by thermally treating a photosensitive precursor having a photopolymerizable layer. The method and apparatus includes heating the photosensitive precursor to a temperature sufficient to cause a portion of the layer to liquefy, contacting the precursor with a development medium to remove the liquefied material, and supporting a development medium with a core member adjacent an exterior surface of the photosensitive precursor, wherein a compressible collar of a closed-cell foam having a Poisson's ratio of less than 0.4 is disposed between the core member and the development medium.

Abstract: Stripping compositions are described that are useful for removing organic substances from substrates, for example, electronic device substrates such as microelectronic wafers or flat panel displays. The stripping compositions may be suitable for removing photoresists, including acrylic-based negative dry film photoresist, from electronic devices. In one embodiment, the stripping compositions can include a polar protic solvent, an amine or alkanoamine, and a quaternary ammonium hydroxide. In one embodiment the stripping compositions can include a polar protic solvent and at least two alkanoamines. The stripping compositions may be free of polar aprotic solvents.

Abstract: A reflective mirror is provided with a base and a multilayer film including first layers and second layers laminated alternately on the base and capable of reflecting at least a portion of the incident light. The multilayer film is provided with a first portion having a first thickness, and with a second portion which has a second thickness different from the first thickness and which is provided at a position rotationally symmetric to that of the first portion about the optical axis of the reflective mirror relative.

Abstract: The present invention provides a lithography apparatus including an optical system housing for an optical system which irradiates a substrate with a beam for forming a pattern, a reflecting member which is provided with the optical system housing and having a reflecting surface parallel to an optical axis of the optical system, and a measurement device configured to measure a rotation angle of the optical system housing by causing measurement light to be incident on each of at least three incident points which are not on the same straight line on the reflecting surface, wherein in the reflecting member a through-hole is formed in a region among the at least three incident points in a direction parallel to the optical axis, and is fixed to the optical system housing via a fixing member in the through-hole.

Abstract: An imaging optics has a plurality of mirrors to image an object field in an object plane into an image field in an image plane. The imaging optics includes a first partial objective to image the object field onto an intermediate image, and the imaging optics includes a second partial objective to image the intermediate image onto the image field. The second partial objective includes a penultimate mirror in the beam path of imaging light between the object field and the image field, and the second partial objective includes a last mirror in the beam path. The penultimate mirror images the intermediate image onto a further intermediate image, and the last mirror images the further intermediate image onto the image field.