JPH0457882U - - Google Patents

Info

Publication number
JPH0457882U
JPH0457882U JP9877090U JP9877090U JPH0457882U JP H0457882 U JPH0457882 U JP H0457882U JP 9877090 U JP9877090 U JP 9877090U JP 9877090 U JP9877090 U JP 9877090U JP H0457882 U JPH0457882 U JP H0457882U
Authority
JP
Japan
Prior art keywords
diffraction grating
grating plate
reflective hologram
hologram diffraction
light
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP9877090U
Other languages
Japanese (ja)
Other versions
JP2505383Y2 (en
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1990098770U priority Critical patent/JP2505383Y2/en
Priority to DE69119017T priority patent/DE69119017T2/en
Priority to EP91115953A priority patent/EP0479059B1/en
Publication of JPH0457882U publication Critical patent/JPH0457882U/ja
Priority to US08/353,304 priority patent/US5497170A/en
Application granted granted Critical
Publication of JP2505383Y2 publication Critical patent/JP2505383Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案によるホログラフイツクヘツド
アツプデイスプレイの一実施例を示す要部断面図
、第２図は第１図中の一部分の変形例を示す分解
斜視図、第３図は本考案に係わるホログラフイツ
クヘツドアツプデイスプレイの一般的な全体構成
を示す図、第４図は従来のホログラフイツクヘツ
ドアツプデイスプレイの要部断面図である。 １２……表示器（発光表示手段）、１３……反
射型ホログラム回折格子板、２０……放熱部材。 FIG. 1 is a cross-sectional view of a main part showing an embodiment of a holographic head-up display according to the present invention, FIG. 2 is an exploded perspective view showing a modification of a portion of FIG. 1, and FIG. 3 is a diagram related to the present invention. FIG. 4 is a cross-sectional view of a main part of a conventional holographic head-up display. 12... Indicator (light emitting display means), 13... Reflective hologram diffraction grating plate, 20... Heat dissipation member.

Claims (1)

【実用新案登録請求の範囲】 可視光を発する発光表示手段と、該発光表示手
段からの可視光を運転者に向けて導く光路中に配
置された反射型ホログラム回折格子板とを少なく
とも備え、前記反射型ホログラム回折格子板が波
長選択性を有する回折反射特性を備え、かつ赤外
線を透過するホログラフイツクヘツドアツプデイ
スプレイにおいて、 前記反射型ホログラム回折格子板の背後に、該
反射型ホログラム回折格子板を透過した赤外線を
受光する放熱部材を、前記反射型ホログラム回折
格子板から離間して配置した、 ことを特徴とするホログラフイツクヘツドアツプ
デイスプレイ。[Claims for Utility Model Registration] A system comprising at least a light-emitting display means for emitting visible light, and a reflective hologram diffraction grating plate disposed in an optical path that guides the visible light from the light-emitting display means toward a driver; In a holographic head-up display in which the reflective hologram diffraction grating plate has wavelength-selective diffraction-reflection characteristics and transmits infrared rays, the reflective hologram diffraction grating plate is provided with a light transmitting device behind the reflective hologram diffraction grating plate. A holographic head-up display, characterized in that a heat dissipating member that receives infrared rays is disposed apart from the reflective hologram diffraction grating plate.
JP1990098770U 1990-09-20 1990-09-20 Holographic head up display Expired - Lifetime JP2505383Y2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP1990098770U JP2505383Y2 (en) 1990-09-20 1990-09-20 Holographic head up display
DE69119017T DE69119017T2 (en) 1990-09-20 1991-09-19 Image display device
EP91115953A EP0479059B1 (en) 1990-09-20 1991-09-19 A headup display apparatus
US08/353,304 US5497170A (en) 1990-09-20 1994-12-05 Headup display apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990098770U JP2505383Y2 (en) 1990-09-20 1990-09-20 Holographic head up display

Publications (2)

Publication Number Publication Date
JPH0457882U true JPH0457882U (en) 1992-05-18
JP2505383Y2 JP2505383Y2 (en) 1996-07-31

Family

ID=31840192

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990098770U Expired - Lifetime JP2505383Y2 (en) 1990-09-20 1990-09-20 Holographic head up display

Country Status (1)

Country Link
JP (1) JP2505383Y2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012113221A (en) * 2010-11-26 2012-06-14 Dainippon Printing Co Ltd Illuminator, projection device and projection type video display apparatus
JP2019159283A (en) * 2018-03-16 2019-09-19 株式会社リコー Image projector and mobile body
JP2019159285A (en) * 2018-03-16 2019-09-19 株式会社リコー Display device and apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6272230U (en) * 1985-10-25 1987-05-08
JPS6435143U (en) * 1987-08-28 1989-03-03
JPH0245829U (en) * 1988-09-27 1990-03-29

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6272230U (en) * 1985-10-25 1987-05-08
JPS6435143U (en) * 1987-08-28 1989-03-03
JPH0245829U (en) * 1988-09-27 1990-03-29

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012113221A (en) * 2010-11-26 2012-06-14 Dainippon Printing Co Ltd Illuminator, projection device and projection type video display apparatus
JP2019159283A (en) * 2018-03-16 2019-09-19 株式会社リコー Image projector and mobile body
JP2019159285A (en) * 2018-03-16 2019-09-19 株式会社リコー Display device and apparatus
US11226485B2 (en) 2018-03-16 2022-01-18 Ricoh Company, Ltd. Image projection device and moving body

Also Published As

Publication number Publication date
JP2505383Y2 (en) 1996-07-31

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