Manufacturing apparatus of optical device, manufacturing method thereof and projector
A technology for optical devices and manufacturing devices, which is applied to optics, projection devices, optical components, etc., can solve the problems that it takes a lot of time and is difficult to manufacture optical devices quickly, and achieve the effect of rapid optical devices and rapid manufacturing
Inactive Publication Date: 2006-08-09
SEIKO EPSON CORP
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Problems solved by technology
Therefore, it takes a lot of time for adjustment due to the time to detect images by moving the liquid crystal panel to various positions, and the processing time to determine the focus position based on a plurality of images, and it is difficult to quickly manufacture optical devices.
Method used
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Embodiment Construction
[0070] [First Embodiment]
[0071] Next, a first embodiment of the present invention will be described based on the drawings.
[0072] 〔Configuration of the projector〕
[0073] figure 1 It is a diagram schematically showing the configuration of a projector 100 including an optical device to be manufactured.
[0074] The projector 100 modulates light beams emitted from a light source according to image information to form a color image, and enlarges and projects the formed color image on a screen not shown. The projector 100, such as figure 1As shown in , it has an exterior housing 100A and an optical unit 100B.
[0075] Furthermore, in figure 1 Although not shown in the drawing, a power supply unit that supplies power from the outside to the constituent members of the projector 100 is disposed in a space other than the optical unit 100B inside the exterior housing 100A to cool the inside of the projector 100. The cooling unit of the projector 100 and the control board co...
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The invention provides a manufacturing apparatus including a holding unit that holds a color-combining optical device; a 6-axis position adjuster 30 that adjusts the position of an optical modulator, a dimension-measuring unit 60 that measures an external dimension of the color-combining optical device in an optical-axis direction; and a controlling unit 73 that drives the 6-axis position adjuster 30. The controlling unit 73 includes a deviation-amount calculating unit 735A that calculates a deviation amount of an optical path length of a light beam from the optical modulator to a projection optical device when the color-combining optical device is interposed between the optical modulator and the projection optical device, on the basis of the external dimension measured by the dimension-measuring unit 60; a back-focus-position calculating unit 735B that calculates a back-focus position of the projection optical device in correspondence with a deviation of the optical path length based on the distance information on the back-focus distance and the deviation amount of the optical path length; and a drive controller 733 that drives the 6-axis position adjuster 30 and positions the optical modulator at the back-focus position.
Description
technical field [0001] The present invention relates to a manufacturing device of an optical device, a manufacturing method thereof, and a projector. Background technique [0002] Conventionally, there have been three light modulators (liquid crystal panels) that modulate the three color lights of R, G, and B according to image information for each color light, and these light modulators are installed to synthesize the modulated three kinds of light beams to form an image. An optical device for color synthesis optical device (cross dichroic prism) of light; and a projector for projection optical device (projection lens) for enlarging and projecting formed image light are known. [0003] In such a projector, in order to obtain a sharp image, each liquid crystal panel must be at the back focus position of the projection lens. In addition, in order to obtain a clearer image, it is necessary to prevent the occurrence of pixel shift between the respective liquid crystal panels. ...
Claims
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Login to View More IPC IPC(8): G02F1/13G02B27/10G02B27/18G03B21/00H04N5/74H04N9/31
Inventor 北林雅志
Owner SEIKO EPSON CORP