-
公开(公告)号：JPH07266586A
公开(公告)日：1995-10-17
申请号：JP8558694
申请日：1994-03-31
Applicant: SONY CORP
Inventor： MARUTANI YUKITOSHI , MATSUDA OSAMU , DOI MASATO , NEMOTO KAZUHIKO , OGAWA MASAMICHI
Abstract: PURPOSE:To ensure that the transfer density of a recording material such as dye can be controlled to a desired value and maintained as such in terms of uniformity and reproducibility by detecting the condition of the recording material and controlling the output of a heating means for the recording material based on detection information. CONSTITUTION:The phototransistor 39 of a photodetector part 70 consisting of a combination of a laser 78 and a light-receiving element 39 is connected to an area between a power supply voltage Vcc and a ground through a resistor R1. In addition, a common connection point between the resistor R1 and the phototransistor is connected to the non-inverting input terminal of an operational amplifier 64. Further, the inverting input terminal of the operational amplifier 64 is connected to an output terminal through a resistor R2, and at the same time, is also grounded through a resistor R3. The output terminal of the operational amplifier 64 is connected to the inverting input terminal of a comparator 65.
-
公开(公告)号：JPH07192301A
公开(公告)日：1995-07-28
申请号：JP33356993
申请日：1993-12-27
Applicant: SONY CORP
Inventor： DOI MASATO , NARUI HIRONOBU , SAWARA KENJI , MATSUDA OSAMU
Abstract: PURPOSE:To simplify the device constitution, to reduce the overall size and facilitate the manufacture, and to improve the reliability and increase the quantity of light reception by making return light to the light reception surface of a light reception part astigmatic. CONSTITUTION:This optical device has a light emission part 1 and a light reception part 4 arranged closely on a common substrate 9 and is provided with an optical element 21 which receives and detects the return light LR itself to the light emission part 1, which is generated when the light L emitted by the light emission part 1 is cast on a to be irradiated part 2 and is reflected by the irradiated part 2, by the light reception part 4, and the return light to the light reception surface of the light reception part 4 is made astigmatic. This element 21 receives the return light by the light reception part 4 in an area other than the projection part of the light emission part 1, so the projection part of the light emission part 1 becomes an ineffective area regarding the light reception. The return light to the light reception part 4, however, is made astigmatic, so the spot of the return light has the center of its intensity deviating from the center of the ineffective area of the light emission part 1.
-
公开(公告)号：JPH0697587A
公开(公告)日：1994-04-08
申请号：JP26922692
申请日：1992-09-11
Applicant: SONY CORP
Inventor： MATSUDA OSAMU , KOBAYASHI TOSHIMASA
Abstract: PURPOSE:To form a good reflective surface on the end face of the resonator of a semiconductor laser with high positional accuracy and high surface accuracy and moreover, to prevent an increase in a manhour in the following process and restrictions on the process from being generated. CONSTITUTION:A part 7 of a twin structure is formed in the vicinity of a reflective surface formation part by etching and a half-cut dicing using a dicing saw 8 is performed in such a way as to pass the part 7 of this twin structure, whereby a starting of cleavage is conducted by a mechanical impact at the time of this dicing to cleave microscopically a support part for the part 7 and a reflective surface 9 is formed.
-
公开(公告)号：JPH0440637A
公开(公告)日：1992-02-12
申请号：JP14918090
申请日：1990-06-07
Applicant: SONY CORP
Inventor： TANIGUCHI TADASHI , MATSUDA OSAMU
Abstract: PURPOSE:To suppress peeling between an optical element and an optical device main body and to improve the fitting strength of the optical element by increasing adhesive strength between an adhesive strength improving optical thin film and an adhesive layer. CONSTITUTION:In the care of providing an adhesive strength improving optical thin film 8 on the surface of an optical characteristic improving optical thin film 7 by evaporation method, the two thin films can be strongly coupled with each other, so that a trouble such as peeling between the two films is not generated. Thereby, large coupling strength can be obtained on the interface between the adhesive layer 6 and the thin film 8 and the interface between both thin films 8, 7. Thus, strength between a prism 1 and a semiconductor base 2 can be improved.
-
公开(公告)号：JPH01152787A
公开(公告)日：1989-06-15
申请号：JP31335887
申请日：1987-12-10
Applicant: SONY CORP
Inventor： OKA MICHIO , MATSUDA OSAMU , MASUDA HISASHI
IPC: H01S5/00
Abstract: PURPOSE:To efficiently produce oscillating laser light whose phases are put in order by providing a reflecting mirror on output reflecting members so as to put the effective light passage length of laser light which passes an effective light point at which near sightedness field image of semiconductor laser is formed. CONSTITUTION:An output reflecting member 12 has a reflecting mirror 12C so that the effective light passage lengths from each effective light point is put in order each other on the effective light points at which a near-sightedness field image is formed. Oscillating laser light LA1 emitted from each effective light point at which the near-sightedness field image 2 is formed is passed through a passage in which the effective light passage lengths are put in order and returned to the near-sightedness field image of semiconductor laser 1 while it is passed through the passage in which the respective effective light passage lengths are put in order each other and struck on the reflecting mirror 12C. Therefore, laser light which is passed on each effective light point performs oscillation operation in a prescribed phase corresponding to mutually arranged effective light passage lengths and the oscillating laser light LA1 whose phases are put in order in a lateral mode can be produced.
-
Patent Agency Ranking
公开(公告)号：JPS63132211A
公开(公告)日：1988-06-04
申请号：JP27905886
申请日：1986-11-22
Applicant: SONY CORP
Inventor： AKIYAMA TOMI , MATSUDA OSAMU
Abstract: PURPOSE:To perform high-accuracy positioning by forming the tip part of an optical fiber so that it deforms axially and plastically, causing the tip to deform plastically by applying an external force in the axial direction of the sleeve, and making adjustments while measuring the quantity of light. CONSTITUTION:The tip part of the optical fiber 11 is inserted into the plastically deformable sleeve 12 fixed to the cap 9 of a semiconductor laser 1 and the force is applied to the plastically deformable sleeve 12, which deforms plastically to position the tip surface of the optical fiber 11 in an X, a Y, and a Z direction as to a laser diode pellet 4. Namely, the quantity of a laser beam LB which is emitted by the laser diode pellet 4, passed through the optical fiber 11, and projected from its projection end surface is measured by a photodetector 16 and the position is adjusted in the X, Y, and Z directions so that the measured value is maximum. Consequently, the high-accuracy positioning is so carried out to obtain the highest optical coupling efficiency.
-
公开(公告)号：JPS63127210A
公开(公告)日：1988-05-31
申请号：JP27366886
申请日：1986-11-17
Applicant: SONY CORP
Inventor： AKIYAMA TOMI , MATSUDA OSAMU
Abstract: PURPOSE:To easily and precisely position and to attach an optical fiber to a prescribed position by inserting the front end part of the optical fiber through a fixed and plastically deformable sleeve and adjusting the position of the front end face of the optical fiber and fixing the sleeve and the optical fiber. CONSTITUTION:The front end part of an optical fiber 11 is inserted to a plastically deformable sleeve 12 fixed to a cap 9 of a semiconductor laser 1, and a force is applied to the sleeve 12 to plastically deform the sleeve 12, thereby positioning the front end face of the optical fiber 11 to a laser diode pellet 4 in X, Y, and Z directions. The quantity of light of a laser beam LB which is emitted from the pellet 4 and passes in the optical fiber 11 is measured by a photodetector 16 and is adjusted to position the front end face of the optical fiber 11. After positioning, the fiber holding sleeve 12, the optical fiber 11, and the cap 9 are permanently fixed with an adhesive 20.
-
公开(公告)号：JPS6325517B2
公开(公告)日：1988-05-25
申请号：JP9739780
申请日：1980-07-16
Applicant: SONY CORP
Inventor： MATSUDA OSAMU , MORI YOSHIFUMI , MORISANE KENJI , AYABE MASAAKI
-
公开(公告)号：JPS63110751A
公开(公告)日：1988-05-16
申请号：JP25769086
申请日：1986-10-29
Applicant: SONY CORP
Inventor： KOMAOKI TARO , MATSUDA OSAMU
Abstract: PURPOSE:To prevent a soldered electrode from being exfoliated from a semiconductor substrate by a method wherein titanium is formed on the surface of the semiconductor substrate, silver is then formed and a soldered layer is formed on a metal layer composed of the silver so that good ohmic contact can be maintained. CONSTITUTION:A Ti layer 2 is formed by evaporation on the surface of a semiconductor substrate 1; an Ag layer 3 is then formed by evaporation. This assembly is sintered at 400 deg.C for 30 min so that ohmic contact can be maintained between the silicon semiconductor substrate 1 and the Ti layer 2. Then, an Sn layer 4 is formed by evaporation; the layers 2-4 are then patterned. After that, a laser diode chip 5 is soldered to the semiconductor substrate 1 through the Sn layer 4 by means of a P-side electrode 6 composed of Ti, Ni and Au. Through this constitution, it is possible to prevent a soldered electrode from being exfoliated from the semiconductor substrate while good ohmic contact is maintained.
-
公开(公告)号：JPS6390886A
公开(公告)日：1988-04-21
申请号：JP23696286
申请日：1986-10-04
Applicant: SONY CORP
Inventor： MATSUDA OSAMU
Abstract: PURPOSE:To provide simplification, high precision, low cost and small size in the manufacture of an optical device adapted for reflecting the light from a light emitting element to the exterior by means of a prism and guiding the light returning from the exterior to a photo detector by means of the prism by integrally forming the prism and the mount section of the light emitting element with a transparent crystal substrate. CONSTITUTION:A groove 4 having a 'V'-shaped cross section is formed in the intermediate part of the surface of a transparent crystal substrate 1, and one side of the groove 4 in the crystal substrate 1 is made into a prism 7 having one or a plurality of photo detectors 9-11 formed on the surface or the reverse side thereof. Also, the surface 15 of the other side of the groove 4 is made lower than the height of the surface 2 of the one side and is made into a light emitting element mount section 14, on which a light emitting element 17 for emitting a light toward the prism 7 is mounted. For instance, in the intermediate part of the surface 2 of a wafershaped crystal substrate 1 composed of a crystal of GaP sliced in a predetermined crystal plane, a groove 4 having a 'V'-shaped cross section is formed by an anisotropical etching, photo diodes 9-11 are formed on the reverse side 3 of the prism 7 on the left of the groove 4, and on the right part, a light emitting element mount section 14 is formed by means of RIE or the like, on which a laser diode 17 is mounted.
-
-
-
-
-
-
-
-
-
Search Results
91
records
(took 0.028 seconds)
