PROJECTOR

Japanese Patent JP3666339

B2

PROBLEM TO BE SOLVED: To provide a projector which can realize a bright projection image with the high contrast ratio while combining a reflection type liquid crystal device and an integrator optical system.
SOLUTION: The spacing between reflection planes 24b and 24d of the light guide body 20 is set into SY/SX<MY/MX by narrowing it according as it advances to the injection end face 26 form the incidence end face 22. An SX is the placement spacing of the X axial direction of the light source image S, an SY is the placement spacing of Y axial direction of the light source image S, an MX is the length of the X axial direction of the incidence end face of the light guide body, and am MY is the length of Y axial direction of the incidence end face of the light transmission body. The polarized light separating performance in a polarizing beam splitter disposed before the reflection type liquid crystal device, thereby, is maintainable in the comparatively high state, and the bright projection image with the high contrast ratio can be obtained.

JP2015232717	MULTIPLE CORE COLLIMATOR
WO/2021/061339	DEVICES AND SYSTEMS FOR UNDER DISPLAY IMAGE SENSOR
JP2005207796	LD INTERFEROMETER UNIT

Yoshitaka Ito

JP2000020815A

June 29, 2005

January 28, 2000

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Seiko Epson Corporation

G02B27/28; G02F1/13; G02F1/1335; G03B21/00; H04N9/31; H04N5/74; (IPC1-7): G02B27/28; G02F1/13; G02F1/1335; G03B21/00; H04N5/74; H04N9/31

JP11295658A
JP9043562A
JP11030765A
JP8278503A
JP10246868A
JP11249012A
JP10170869A
JP11030765A
JP2000066138A

Masahiko Ueyanagi
Osamu Suzawa

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