KR890006858Y1 - Scanner hologram - Google Patents
Scanner hologram Download PDFInfo
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- KR890006858Y1 KR890006858Y1 KR2019860020807U KR860020807U KR890006858Y1 KR 890006858 Y1 KR890006858 Y1 KR 890006858Y1 KR 2019860020807 U KR2019860020807 U KR 2019860020807U KR 860020807 U KR860020807 U KR 860020807U KR 890006858 Y1 KR890006858 Y1 KR 890006858Y1
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- lens
- drum
- scanning device
- fresnel
- laser
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/10—Scanning systems
- G02B26/105—Scanning systems with one or more pivoting mirrors or galvano-mirrors
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/10—Scanning systems
- G02B26/12—Scanning systems using multifaceted mirrors
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/02—Simple or compound lenses with non-spherical faces
- G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Optical Scanning Systems (AREA)
- Facsimile Scanning Arrangements (AREA)
Abstract
내용 없음.No content.
Description
제1도는 본 고안에 따라 구성된 광속 주사장치의 평면 구성도.1 is a plan view showing a light beam scanning device constructed in accordance with the present invention.
제2(a)도 제2(b)도는 본 고안에 의한 광속 주사장치의 정면구성도 및 다면경의 경면에서의 광속 모양.FIG. 2 (a) and FIG. 2 (b) are the front beams of the light beam scanning apparatus according to the present invention and the light beam shape at the mirror surface of the multi-face mirror.
제3도는 본 고안의 프레넬 렌즈에 의한 광속 집속작용 상태를 나타낸 정면도.Figure 3 is a front view showing a light beam focusing state by the Fresnel lens of the present invention.
제4도는 종래 레이져 광속 주사장치의 평면 구성도.Figure 4 is a plan view of a conventional laser beam scanning device.
제5(a)도 제5(b)도는 종래 레이져 주사장치의 정면 구성도 및 다면경의 경면에서의 광속모양.5 (a) and 5 (b) are the front beams of the conventional laser scanning apparatus and the shape of the light beam on the mirror surface of the multi-face mirror.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
3 : 집속렌즈 5 : 보정렌즈계3: focusing lens 5: correction lens system
51,52 : 프레넬렌즈 5 : 평탄면51,52: Fresnel lens 5: Flat surface
5 : 요철면5: uneven surface
본 고안은 프레넬 렌즈를 이용한 레어져 광속 주사장치에 관한 것으로서, 특히 광속주사계를 필요로 하는 프린터와 같은 제품에 적당한 광속 주사장치를 제공함에 주암점을 둔 것이다.The present invention relates to a laser beam scanning device using a Fresnel lens, in particular to provide a beam scanning device suitable for products such as a printer that requires a beam scanning system.
종래의 광속 주사장치를 보면 도면 제4도 및 제5도에서와 같이 레어저(1'), 콜리메이터(2'), 원통형렌즈(Gylindrical Lens) (3'), 회전다면경(4'), 보정렌즈계(5')로 구성 결합되어 있으며, 특히 보정렌즈(5')는 흔들림(Wobble)의 수정과, 드럼(6')상에서의 일정한 주사속도 및 선형적인 초점궤적을 형성하기 위하여 토릭(Toric)면을 가지는 렌즈(51') (52')로 결합 구성되어 있다.In the conventional luminous flux scanning apparatus, as shown in FIGS. 4 and 5, a laser 1 ', a collimator 2', a cylindrical lens 3 ', a rotating polyhedron 4', Comprising a combination of the correction lens system (5 '), in particular the correction lens (5') is toric (Toobble) to form a fixed scan speed and a linear focus trajectory on the Wobble, the drum (6 ') And a lens 51 'and 52' having a) plane.
따라서, 레이져(1')로 부터 나온 빔을 콜리메이터(2')에서 받아 평행광속으로 만든후, 원통형 렌즈(3')로서 회전 다면경(4')의 경면에 주사방향과 수직한 방향으로 평행광속을 집속시킨다.Therefore, the beam from the laser 1 'is received by the collimator 2' and made into parallel beams, and then the cylindrical lens 3 'is parallel to the mirror surface of the rotating multifaceted mirror 4' in a direction perpendicular to the scanning direction. Focus the beam
여기서, 집속된 광속은 회전다면경에 의해 A에서 B방향으로 주사되고, 이 주사된 광속은 드럼(6') 표면상에서 주사속도를 일정하게 하여, 드럼상에 선형적인 초점의 궤적을 형성시켜 주는 보정렌즈계(5')를 통하여 드럼(6')상에 집속됨에 따라, 레이져(1')를 변조하므로서 드럼상에 접속된 공속이 변조되어 화상을 형성하게 되는 것이다.Here, the focused luminous flux is scanned from the A to B direction by the rotating polyhedron, and the scanned luminous flux makes the scanning speed constant on the surface of the drum 6 ', thereby forming a linear focus trajectory on the drum. As focused on the drum 6 'through the correction lens system 5', the air speed connected to the drum is modulated by modulating the laser 1 'to form an image.
그런데, 상기 구성중 보정렌즈계(5')는 흔들림의 수정과 드럼상에서의 일정한 주사속도 및 선형적인 초점궤적을 형성하기 위하여 토릭면을 형성하게 되는데, 상기 토릭면은 그 가공이 매우 어려워 생상성이 낮을 뿐만 아니라, 그 제조단가가 매우 비싸다.By the way, the correction lens system 5 'of the configuration forms a toric surface in order to correct the shaking and to form a constant scanning speed and linear focal trajectory on the drum. In addition, the manufacturing cost is very expensive.
또한, 회전다면경에 광속을 집속시킨 후, 반사된 광속을 드럼상에 재집속하는 광속주사계는 단가가 매우 높은 2-3매의 렌즈를 중첩 설치하여 구성하게 되는 구성상의 문제점도 있었다.In addition, the beam scanning system for focusing the luminous flux on a rotating mirror and then focusing the reflected luminous flux on the drum also has a configuration problem in that two to three lenses having a very high unit price are superimposed.
따라서, 본 고안은 종래 보정렌즈계의 상기와 같은 제조 및 구성상의 문제점을 해결하기 위하여, 평탄면과 요철면으로 구성된 1쌍의 프레넬렌즈를 이용하여 광속 주사계를 형성한 것으로서, 이를 첨부된 도면을 따라 상세히 설명하면 다음과 같다.Accordingly, the present invention is to form a luminous flux scanning system using a pair of Fresnel lens composed of a flat surface and uneven surface, in order to solve the problems of the manufacturing and configuration of the conventional correction lens system, the accompanying drawings When described in detail according to the following.
즉, 레이저(1)와 콜리메이터(2) 및 집속렌즈 회전다면경(4) 보정렌즈계로 결합 구성된 광속 주사장치를 형성함에 있어서, 도면 제1,2,3도에서와 같이, 집속렌즈(3)는 그 초점이 드럼(6)상에 위치하는 것을 설치하며, 평탄면(5a)과 요철면(5b)으로 구성된 적어도 1개 이상의 프레넬 렌즈(51) (52)를, 그 평탄면(5a)이 회전다면경(4) 측으로 향하도록 나란하게 설치하여 보정렌즈계(5)를 형성한 것이다.That is, in forming the luminous flux scanning device composed of the laser 1, the collimator 2, and the focusing lens rotation polyhedron 4, the corrected lens system, as shown in Figs. 1, 2 and 3, the focusing lens 3 The focal point is located on the drum 6, and at least one Fresnel lens 51, 52 composed of the flat surface 5a and the uneven surface 5b, the flat surface 5a The correction lens system 5 is formed by being installed side by side so as to face the rotating multifaceted mirror 4 side.
따라서, 일측의 레이저(1)로 부터 발생된 광속은 콜리메이터(2)에 의해 평행광속으로 만들어진뒤, 초점위치가 드럼(6)상에 맺히는 집속렌즈(3)에 의해 집속되고, 회전다면경(4)에 의해 A에서 B방향으로 주사된다.Therefore, the luminous flux generated from the laser 1 on one side is made into parallel luminous flux by the collimator 2, and then focused by the focusing lens 3 having the focal position on the drum 6. 4) is scanned in the A to B direction.
회전다면경(4)에 의해 반사된 후 주사하는 광속(7)은 1쌍의 프레넬렌즈(51) (52)로 구성된 보정렌즈계에 의해 드럼(6)상에 접속된다.The light beam 7 which is reflected by the rotating polygon mirror 4 and then scanned is connected on the drum 6 by a correction lens system composed of a pair of Fresnel lenses 51 and 52.
상기 프레넬렌즈(51) (52)는 평탄면(5a)이 전방에 위치함에 따라 레어져광의 투과율을 향상시키며, 드럼상에서 광속의 주사속도를 일정하게 하고, 선형적인 초점의 궤적을 형성시켜 준다.The Fresnel lenses 51 and 52 improve the transmittance of the laser light as the flat surface 5a is located in front, make the scanning speed of the light beam constant on the drum, and form a linear focus trajectory. .
또 상기 프레넬렌즈(51) (52)가 드럼 가까이에 위치하고 있어서 회전다면경(4)의 정면기울기에 의해 발생하는 흔들림을 보정해 주는 것이다.In addition, the Fresnel lens 51, 52 is located near the drum to correct the shake caused by the front tilt of the rotating multi-face mirror (4).
이상과 같이 보정렌즈계를 가공이 용이하여 생산성이 높고 가격이 저렴한 1쌍의 프레넬렌즈(51) (52)로 구성함에 따라, 종래의 고단가렌즈를 사용하던 것과 대비시 동일한 작용을 행하면서도 상당히 저렴한 가격의 주사장치를 제공할 수 있으며, 광학계의 구성이 간단해지면서 위치 정렬(Alignment)이 매우 용이한 등의 특출한 효과가 있는 것이다.As described above, the correction lens system is easy to process and is composed of a pair of Fresnel lenses 51 and 52 which are high in productivity and low in cost, and perform the same operation as compared with the conventional high unit price lens. It is possible to provide an inexpensive scanning device, and the configuration of the optical system is simplified, and the alignment effect is very easy.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019860020807U KR890006858Y1 (en) | 1986-12-22 | 1986-12-22 | Scanner hologram |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019860020807U KR890006858Y1 (en) | 1986-12-22 | 1986-12-22 | Scanner hologram |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR880012928U KR880012928U (en) | 1988-08-29 |
| KR890006858Y1 true KR890006858Y1 (en) | 1989-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019860020807U KR890006858Y1 (en) | 1986-12-22 | 1986-12-22 | Scanner hologram |
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| Country | Link |
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| KR (1) | KR890006858Y1 (en) |
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1986
- 1986-12-22 KR KR2019860020807U patent/KR890006858Y1/en not_active IP Right Cessation
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| Publication number | Publication date |
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| KR880012928U (en) | 1988-08-29 |
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